/* * tclResolve.c -- * * Contains hooks for customized command/variable name resolution * schemes. These hooks allow extensions like [incr Tcl] to add their own * name resolution rules to the Tcl language. Rules can be applied to a * particular namespace, to the interpreter as a whole, or both. * * Copyright (c) 1998 Lucent Technologies, Inc. * * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tclInt.h" /* * Declarations for functions local to this file: */ static void BumpCmdRefEpochs(Namespace *nsPtr); /* *---------------------------------------------------------------------- * * Tcl_AddInterpResolvers -- * * Adds a set of command/variable resolution functions to an interpreter. * These functions are consulted when commands are resolved in * Tcl_FindCommand, and when variables are resolved in TclLookupVar and * LookupCompiledLocal. Each namespace may also have its own set of * resolution functions which take precedence over those for the * interpreter. * * When a name is resolved, it is handled as follows. First, the name is * passed to the resolution functions for the namespace. If not resolved, * the name is passed to each of the resolution functions added to the * interpreter. Finally, if still not resolved, the name is handled using * the default Tcl rules for name resolution. * * Results: * Returns pointers to the current name resolution functions in the * cmdProcPtr, varProcPtr and compiledVarProcPtr arguments. * * Side effects: * If a compiledVarProc is specified, this function bumps the * compileEpoch for the interpreter, forcing all code to be recompiled. * If a cmdProc is specified, this function bumps the cmdRefEpoch in all * namespaces, forcing commands to be resolved again using the new rules. * *---------------------------------------------------------------------- */ void Tcl_AddInterpResolvers( Tcl_Interp *interp, /* Interpreter whose name resolution rules are * being modified. */ CONST char *name, /* Name of this resolution scheme. */ Tcl_ResolveCmdProc *cmdProc,/* New function for command resolution. */ Tcl_ResolveVarProc *varProc,/* Function for variable resolution at * runtime. */ Tcl_ResolveCompiledVarProc *compiledVarProc) /* Function for variable resolution at compile * time. */ { Interp *iPtr = (Interp *) interp; ResolverScheme *resPtr; /* * Since we're adding a new name resolution scheme, we must force all code * to be recompiled to use the new scheme. If there are new compiled * variable resolution rules, bump the compiler epoch to invalidate * compiled code. If there are new command resolution rules, bump the * cmdRefEpoch in all namespaces. */ if (compiledVarProc) { iPtr->compileEpoch++; } if (cmdProc) { BumpCmdRefEpochs(iPtr->globalNsPtr); } /* * Look for an existing scheme with the given name. If found, then replace * its rules. */ for (resPtr=iPtr->resolverPtr ; resPtr!=NULL ; resPtr=resPtr->nextPtr) { if (*name == *resPtr->name && strcmp(name, resPtr->name) == 0) { resPtr->cmdResProc = cmdProc; resPtr->varResProc = varProc; resPtr->compiledVarResProc = compiledVarProc; return; } } /* * Otherwise, this is a new scheme. Add it to the FRONT of the linked * list, so that it overrides existing schemes. */ resPtr = (ResolverScheme *) ckalloc(sizeof(ResolverScheme)); resPtr->name = (char *) ckalloc((unsigned)(strlen(name) + 1)); strcpy(resPtr->name, name); resPtr->cmdResProc = cmdProc; resPtr->varResProc = varProc; resPtr->compiledVarResProc = compiledVarProc; resPtr->nextPtr = iPtr->resolverPtr; iPtr->resolverPtr = resPtr; } /* *---------------------------------------------------------------------- * * Tcl_GetInterpResolvers -- * * Looks for a set of command/variable resolution functions with the * given name in an interpreter. These functions are registered by * calling Tcl_AddInterpResolvers. * * Results: * If the name is recognized, this function returns non-zero, along with * pointers to the name resolution functions in the Tcl_ResolverInfo * structure. If the name is not recognized, this function returns zero. * * Side effects: * None. * *---------------------------------------------------------------------- */ int Tcl_GetInterpResolvers( Tcl_Interp *interp, /* Interpreter whose name resolution rules are * being queried. */ CONST char *name, /* Look for a scheme with this name. */ Tcl_ResolverInfo *resInfoPtr) /* Returns pointers to the functions, if * found */ { Interp *iPtr = (Interp *) interp; ResolverScheme *resPtr; /* * Look for an existing scheme with the given name. If found, then return * pointers to its functions. */ for (resPtr=iPtr->resolverPtr ; resPtr!=NULL ; resPtr=resPtr->nextPtr) { if (*name == *resPtr->name && strcmp(name, resPtr->name) == 0) { resInfoPtr->cmdResProc = resPtr->cmdResProc; resInfoPtr->varResProc = resPtr->varResProc; resInfoPtr->compiledVarResProc = resPtr->compiledVarResProc; return 1; } } return 0; } /* *---------------------------------------------------------------------- * * Tcl_RemoveInterpResolvers -- * * Removes a set of command/variable resolution functions previously * added by Tcl_AddInterpResolvers. The next time a command/variable name * is resolved, these functions won't be consulted. * * Results: * Returns non-zero if the name was recognized and the resolution scheme * was deleted. Returns zero otherwise. * * Side effects: * If a scheme with a compiledVarProc was deleted, this function bumps * the compileEpoch for the interpreter, forcing all code to be * recompiled. If a scheme with a cmdProc was deleted, this function * bumps the cmdRefEpoch in all namespaces, forcing commands to be * resolved again using the new rules. * *---------------------------------------------------------------------- */ int Tcl_RemoveInterpResolvers( Tcl_Interp *interp, /* Interpreter whose name resolution rules are * being modified. */ CONST char *name) /* Name of the scheme to be removed. */ { Interp *iPtr = (Interp *) interp; ResolverScheme **prevPtrPtr, *resPtr; /* * Look for an existing scheme with the given name. */ prevPtrPtr = &iPtr->resolverPtr; for (resPtr=iPtr->resolverPtr ; resPtr!=NULL ; resPtr=resPtr->nextPtr) { if (*name == *resPtr->name && strcmp(name, resPtr->name) == 0) { break; } prevPtrPtr = &resPtr->nextPtr; } /* * If we found the scheme, delete it. */ if (resPtr) { /* * If we're deleting a scheme with compiled variable resolution rules, * bump the compiler epoch to invalidate compiled code. If we're * deleting a scheme with command resolution rules, bump the * cmdRefEpoch in all namespaces. */ if (resPtr->compiledVarResProc) { iPtr->compileEpoch++; } if (resPtr->cmdResProc) { BumpCmdRefEpochs(iPtr->globalNsPtr); } *prevPtrPtr = resPtr->nextPtr; ckfree(resPtr->name); ckfree((char *) resPtr); return 1; } return 0; } /* *---------------------------------------------------------------------- * * BumpCmdRefEpochs -- * * This function is used to bump the cmdRefEpoch counters in the * specified namespace and all of its child namespaces. It is used * whenever name resolution schemes are added/removed from an * interpreter, to invalidate all command references. * * Results: * None. * * Side effects: * Bumps the cmdRefEpoch in the specified namespace and its children, * recursively. * *---------------------------------------------------------------------- */ static void BumpCmdRefEpochs( Namespace *nsPtr) /* Namespace being modified. */ { Tcl_HashEntry *entry; Tcl_HashSearch search; nsPtr->cmdRefEpoch++; for (entry = Tcl_FirstHashEntry(&nsPtr->childTable, &search); entry != NULL; entry = Tcl_NextHashEntry(&search)) { Namespace *childNsPtr = (Namespace *) Tcl_GetHashValue(entry); BumpCmdRefEpochs(childNsPtr); } TclInvalidateNsPath(nsPtr); } /* *---------------------------------------------------------------------- * * Tcl_SetNamespaceResolvers -- * * Sets the command/variable resolution functions for a namespace, * thereby changing the way that command/variable names are interpreted. * This allows extension writers to support different name resolution * schemes, such as those for object-oriented packages. * * Command resolution is handled by a function of the following type: * * typedef int (*Tcl_ResolveCmdProc)(Tcl_Interp *interp, * CONST char *name, Tcl_Namespace *context, * int flags, Tcl_Command *rPtr); * * Whenever a command is executed or Tcl_FindCommand is invoked within * the namespace, this function is called to resolve the command name. If * this function is able to resolve the name, it should return the status * code TCL_OK, along with the corresponding Tcl_Command in the rPtr * argument. Otherwise, the function can return TCL_CONTINUE, and the * command will be treated under the usual name resolution rules. Or, it * can return TCL_ERROR, and the command will be considered invalid. * * Variable resolution is handled by two functions. The first is called * whenever a variable needs to be resolved at compile time: * * typedef int (*Tcl_ResolveCompiledVarProc)(Tcl_Interp *interp, * CONST char *name, Tcl_Namespace *context, * Tcl_ResolvedVarInfo *rPtr); * * If this function is able to resolve the name, it should return the * status code TCL_OK, along with variable resolution info in the rPtr * argument; this info will be used to set up compiled locals in the call * frame at runtime. The function may also return TCL_CONTINUE, and the * variable will be treated under the usual name resolution rules. Or, it * can return TCL_ERROR, and the variable will be considered invalid. * * Another function is used whenever a variable needs to be resolved at * runtime but it is not recognized as a compiled local. (For example, * the variable may be requested via Tcl_FindNamespaceVar.) This function * has the following type: * * typedef int (*Tcl_ResolveVarProc)(Tcl_Interp *interp, * CONST char *name, Tcl_Namespace *context, * int flags, Tcl_Var *rPtr); * * This function is quite similar to the compile-time version. It returns * the same status codes, but if variable resolution succeeds, this * function returns a Tcl_Var directly via the rPtr argument. * * Results: * Nothing. * * Side effects: * Bumps the command epoch counter for the namespace, invalidating all * command references in that namespace. Also bumps the resolver epoch * counter for the namespace, forcing all code in the namespace to be * recompiled. * *---------------------------------------------------------------------- */ void Tcl_SetNamespaceResolvers( Tcl_Namespace *namespacePtr,/* Namespace whose resolution rules are being * modified. */ Tcl_ResolveCmdProc *cmdProc,/* Function for command resolution */ Tcl_ResolveVarProc *varProc,/* Function for variable resolution at * run-time */ Tcl_ResolveCompiledVarProc *compiledVarProc) /* Function for variable resolution at compile * time. */ { Namespace *nsPtr = (Namespace *) namespacePtr; /* * Plug in the new command resolver, and bump the epoch counters so that * all code will have to be recompiled and all commands will have to be * resolved again using the new policy. */ nsPtr->cmdResProc = cmdProc; nsPtr->varResProc = varProc; nsPtr->compiledVarResProc = compiledVarProc; nsPtr->cmdRefEpoch++; nsPtr->resolverEpoch++; TclInvalidateNsPath(nsPtr); } /* *---------------------------------------------------------------------- * * Tcl_GetNamespaceResolvers -- * * Returns the current command/variable resolution functions for a * namespace. By default, these functions are NULL. New functions can be * installed by calling Tcl_SetNamespaceResolvers, to provide new name * resolution rules. * * Results: * Returns non-zero if any name resolution functions have been assigned * to this namespace; also returns pointers to the functions in the * Tcl_ResolverInfo structure. Returns zero otherwise. * * Side effects: * None. * *---------------------------------------------------------------------- */ int Tcl_GetNamespaceResolvers( Tcl_Namespace *namespacePtr,/* Namespace whose resolution rules are being * modified. */ Tcl_ResolverInfo *resInfoPtr) /* Returns: pointers for all name resolution * functions assigned to this namespace. */ { Namespace *nsPtr = (Namespace *) namespacePtr; resInfoPtr->cmdResProc = nsPtr->cmdResProc; resInfoPtr->varResProc = nsPtr->varResProc; resInfoPtr->compiledVarResProc = nsPtr->compiledVarResProc; if (nsPtr->cmdResProc != NULL || nsPtr->varResProc != NULL || nsPtr->compiledVarResProc != NULL) { return 1; } return 0; } /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */ a> 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/***********************************************************
*
* Test program:	 tsohm
*
* Test Shared Object Header Messages
*
*************************************************************/

#include "testhdf5.h"

/*
 * This file needs to access private information from the H5F package.
 * This file also needs to access the file testing code.
 */
#define H5F_FRIEND		/*suppress error about including H5Fpkg	  */
#define H5F_TESTING
#include "H5Fpkg.h"		/* File access	 			*/

/* Default SOHM values */
#define DEF_NUM_INDEXES 0
const unsigned def_type_flags[H5O_SHMESG_MAX_NINDEXES] = {0,0,0,0,0,0};
const unsigned def_minsizes[H5O_SHMESG_MAX_NINDEXES] = {250,250,250,250,250,250};
#define DEF_L2B 50
#define DEF_B2L 40

/* Non-default SOHM values for testing */
#define TEST_NUM_INDEXES 4
const unsigned test_type_flags[H5O_SHMESG_MAX_NINDEXES] =
                {H5O_SHMESG_FILL_FLAG,
                 H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_ATTR_FLAG,
                 H5O_SHMESG_SDSPACE_FLAG,
                 H5O_SHMESG_PLINE_FLAG,
                 0, 0};
const unsigned test_minsizes[H5O_SHMESG_MAX_NINDEXES] = {0, 2, 40, 100, 3, 1000};
#define TEST_L2B 65
#define TEST_B2L 64

#define FILENAME   "tsohm.h5"
#define FILENAME_SRC   "tsohm_src.h5"
#define FILENAME_DST   "tsohm_dst.h5"

#define NAME_BUF_SIZE 512

/* How much overhead counts as "not much" when converting B-trees, etc. */
#define OVERHEAD_ALLOWED 1.15F

#define NUM_DATASETS 10
#define NUM_ATTRIBUTES 100

typedef struct dtype1_struct {
    int    i1;
    char   str[10];
    int    i2;
    int    i3;
    int    i4;
    int    i5;
    int    i6;
    int    i7;
    int    i8;
    float  f1;
} dtype1_struct;

#define DTYPE2_SIZE 1024
const char *DSETNAME[] = {
    "dataset0",    "dataset1",
    "dataset2",    "dataset3",
    "dataset4",    "dataset5",
    "dataset6",    "dataset7",
    "dataset8",    "dataset9",
    "dataset10",    "dataset11",
    NULL
};
const char *EXTRA_DSETNAME[] = {
    "ex_dataset0",    "ex_dataset1",
    "ex_dataset2",    "ex_dataset3",
    "ex_dataset4",    "ex_dataset5",
    "ex_dataset6",    "ex_dataset7",
    "ex_dataset8",    "ex_dataset9",
    "ex_dataset10",   "ex_dataset11",
    "ex_dataset12",   "ex_dataset13",
    "ex_dataset14",   "ex_dataset15",
    "ex_dataset16",   "ex_dataset17",
    "ex_dataset18",   "ex_dataset19",
    NULL
};
#define SOHM_HELPER_NUM_EX_DSETS 20
typedef struct complex_t {
    double                  re;
    double                  im;
} complex_t;
#define ENUM_NUM_MEMBS 20
const char *ENUM_NAME[] = {
    "enum_member0",     "enum_member1",
    "enum_member2",     "enum_member3",
    "enum_member4",     "enum_member5",
    "enum_member6",     "enum_member7",
    "enum_member8",     "enum_member9",
    "enum_member10",    "enum_member11",
    "enum_member12",    "enum_member13",
    "enum_member14",    "enum_member15",
    "enum_member16",    "enum_member17",
    "enum_member18",    "enum_member19",
    NULL
};
const int ENUM_VAL[] = {
    0,     13,
    -500,  63,
    64,    -64,
    65,    2048,
    1,     2,
    -1,    7,
    130,    -5000,
    630,    640,
    -640,   650,
    20480,  10,
    -1001,    -10
};
#define SIZE2_RANK1 6
#define SIZE2_RANK2 10
#define SIZE2_DIMS {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

#define LONG_STRING "00 index.  A long string used for testing. To create new strings, set the first two characters to be some ASCII number other than 00, such as 01."

/* Struct returned from size2_helper function */
typedef struct size2_helper_struct {
    h5_stat_size_t empty_size;
    h5_stat_size_t first_dset;
    h5_stat_size_t second_dset;
    h5_stat_size_t dsets1;
    h5_stat_size_t dsets2;
    h5_stat_size_t interleaved;
    h5_stat_size_t attrs1;
    h5_stat_size_t attrs2;
} size2_helper_struct;

/* Number of distinct messages for the sohm_delete test */
#define DELETE_NUM_MESGS 7
#define HALF_DELETE_NUM_MESGS 3
#define DELETE_DIMS {1,1,1,1,1,1,1}
#define DELETE_MIN_MESG_SIZE 10
#define DELETE_MAX_MESG_SIZE 60


/* Number of dimensions in extend_dset test */
#define EXTEND_NDIMS 2

/* Dimensions for external_dtype test */
#define NX     10
#define NY     10

/* Helper function prototypes */
static hid_t make_dtype_1(void);
static hid_t make_dtype_2(void);
static hid_t close_reopen_file(hid_t file, const char* filename, hid_t fapl_id);
static void test_sohm_attrs(void);
#ifdef NOT_NOW
static void size2_dump_struct(const char *name, size2_helper_struct *sizes);
#endif /* NOT_NOW */
static void size2_verify(void);
static void test_sohm_delete(void);
static void test_sohm_delete_revert(void);
static void test_sohm_extlink(void);



/****************************************************************
**
**  check_fcpl_values(): Helper function for test_sohm_fcpl.
**         Verifies that the *_in and *_out parameters are equal.
**
****************************************************************/
static void check_fcpl_values(hid_t fcpl_id, const unsigned nindexes_in,
                const unsigned *flags_in, const unsigned *minsizes_in,
                unsigned l2b, unsigned b2l)
{
    unsigned    num_indexes;
    unsigned    index_flags, min_mesg_size;
    unsigned    list_size, btree_size;
    unsigned     x;
    herr_t      ret;

    /* Verify number of indexes is set to default */
    ret = H5Pget_shared_mesg_nindexes(fcpl_id, &num_indexes);
    CHECK_I(ret, "H5Pget_shared_mesg_nindexes");
    VERIFY(num_indexes, nindexes_in, "H5Pget_shared_mesg_nindexes");

    /* Verify index flags and minsizes are set */
    for(x=0; x<num_indexes; ++x)
    {
        ret = H5Pget_shared_mesg_index(fcpl_id, x, &index_flags, &min_mesg_size);
        CHECK_I(ret, "H5Pget_shared_mesg_index");
        VERIFY(index_flags, flags_in[x], "H5Pget_shared_mesg_index");
        VERIFY(min_mesg_size, minsizes_in[x], "H5Pget_shared_mesg_index");
    }

    /* Check list-to-btree and btree-to-list values */
    ret = H5Pget_shared_mesg_phase_change(fcpl_id, &list_size, &btree_size);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    VERIFY(list_size, l2b, "H5Pset_shared_mesg_phase_change");
    VERIFY(btree_size, b2l, "H5Pset_shared_mesg_phase_change");
}


/****************************************************************
**
**  test_sohm_fcpl(): Test File Creation Property Lists.
**
****************************************************************/
static void test_sohm_fcpl(void)
{
    hid_t       fid = -1;
    hid_t       fcpl_id = -1;
    hid_t       fcpl2_id = -1;
    unsigned    x;
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing File Creation Properties for Shared Messages\n"));

    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    /* Verify fcpl values */
    check_fcpl_values(fcpl_id, DEF_NUM_INDEXES, def_type_flags, def_minsizes, DEF_L2B, DEF_B2L);

    /* Create a file with this fcpl and make sure that all the values can be
     * retrieved.
     */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(fid, "H5Fcreate");

    fcpl2_id = H5Fget_create_plist(fid);
    CHECK_I(fcpl2_id, "H5Fcreate");

    /* Verify fcpl values */
    check_fcpl_values(fcpl2_id, DEF_NUM_INDEXES, def_type_flags, def_minsizes, DEF_L2B, DEF_B2L);

    ret = H5Pclose(fcpl2_id);
    CHECK_I(ret, "H5Pclose");

    /* Close and re-open the file.  Make sure that fcpl values are still
     * correct.
     */
    ret = H5Fclose(fid);
    CHECK_I(ret, "H5Fclose");
    fid = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(fid, "H5Fopen");

    fcpl2_id = H5Fget_create_plist(fid);
    CHECK_I(ret, "H5Fcreate");

    /* Verify fcpl values */
    check_fcpl_values(fcpl2_id, DEF_NUM_INDEXES, def_type_flags, def_minsizes, DEF_L2B, DEF_B2L);

    /* Clean up */
    ret = H5Pclose(fcpl2_id);
    CHECK_I(ret, "H5Pclose");
    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");
    ret = H5Fclose(fid);
    CHECK_I(ret, "H5Fclose");


    /* Start over with a non-default fcpl */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    /* Set up index values */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, TEST_NUM_INDEXES);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    for(x = 0; x < TEST_NUM_INDEXES; ++x) {
        ret = H5Pset_shared_mesg_index(fcpl_id, x, test_type_flags[x], test_minsizes[x]);
        CHECK_I(ret, "H5Pset_shared_mesg_index");
    } /* end for */

    ret = H5Pset_shared_mesg_phase_change(fcpl_id, TEST_L2B, TEST_B2L);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    check_fcpl_values(fcpl_id, TEST_NUM_INDEXES, test_type_flags, test_minsizes, TEST_L2B, TEST_B2L);

    /* Use the fcpl to create a file and get it back again */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(fid, "H5Fcreate");
    fcpl2_id = H5Fget_create_plist(fid);
    CHECK_I(fcpl2_id, "H5Fcreate");

    /* Verify fcpl values */
    check_fcpl_values(fcpl2_id, TEST_NUM_INDEXES, test_type_flags, test_minsizes, TEST_L2B, TEST_B2L);

    ret = H5Pclose(fcpl2_id);
    CHECK_I(ret, "H5Pclose");

    /* Close and re-open the file.  Make sure that fcpl values are still
     * correct.
     */
    ret = H5Fclose(fid);
    CHECK_I(ret, "H5Fclose");
    fid = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(fid, "H5Fopen");

    fcpl2_id = H5Fget_create_plist(fid);
    CHECK_I(ret, "H5Fcreate");

    /* Verify fcpl values */
    check_fcpl_values(fcpl2_id, TEST_NUM_INDEXES, test_type_flags, test_minsizes, TEST_L2B, TEST_B2L);

    /* Clean up */
    ret = H5Pclose(fcpl2_id);
    CHECK_I(ret, "H5Pclose");
    ret = H5Fclose(fid);
    CHECK_I(ret, "H5Fclose");

    /* Test giving bogus values to H5P* functions */
    H5E_BEGIN_TRY {
        /* Trying to create too many indexes should fail */
        ret = H5Pset_shared_mesg_nindexes(fcpl_id, H5O_SHMESG_MAX_NINDEXES + 1);
        VERIFY(ret, -1, "H5Pset_shared_mesg_nindexes");

        /* Trying to set index to an index higher than the current number
         * of indexes should fail.
         */
        ret = H5Pset_shared_mesg_index(fcpl_id, H5O_SHMESG_MAX_NINDEXES, 0, 15);
        VERIFY(ret, -1, "H5Pset_shared_mesg_index");
        ret = H5Pset_shared_mesg_index(fcpl_id, TEST_NUM_INDEXES, 0, 15);
        VERIFY(ret, -1, "H5Pset_shared_mesg_index");

        /* Setting an unknown flag (all flags + 1) should fail */
        ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_ALL_FLAG + 1, 15);
        VERIFY(ret, -1, "H5Pset_shared_mesg_index");

        /* Try setting two different indexes to hold fill messages.  They
         * should hold even very small messages for testing, even though we
         * wouldn't really want to share such tiny messages in the real world.
         */
        ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_FILL_FLAG, 15);
        CHECK_I(ret, "H5Pset_shared_mesg_index");
        ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_FILL_FLAG, 15);
        CHECK_I(ret, "H5Pset_shared_mesg_index");
        fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
        VERIFY(fid, -1, "H5Fcreate");
        ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_FILL_FLAG, 15);
        CHECK_I(ret, "H5Pset_shared_mesg_index");
        fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
        VERIFY(fid, -1, "H5Fcreate");

        /* Test list/btree cutoffs.  We can set these to any positive value,
         * but if the list max is less than the btree min we'll get an error
         * when the file is created.
         */
        ret = H5Pset_shared_mesg_phase_change(fcpl_id, 10, 12);
        VERIFY(ret, -1, "H5Pset_shared_mesg_phase_change");
        /* Setting them to extremely large values should also fail */
        ret = H5Pset_shared_mesg_phase_change(fcpl_id, H5O_SHMESG_MAX_LIST_SIZE + 1, 0);
        VERIFY(ret, -1, "H5Pset_shared_mesg_phase_change");
        ret = H5Pset_shared_mesg_phase_change(fcpl_id, 10, H5O_SHMESG_MAX_LIST_SIZE + 10);
        VERIFY(ret, -1, "H5Pset_shared_mesg_phase_change");
        ret = H5Pset_shared_mesg_phase_change(fcpl_id, H5O_SHMESG_MAX_LIST_SIZE, H5O_SHMESG_MAX_LIST_SIZE+1);
        VERIFY(ret, -1, "H5Pset_shared_mesg_phase_change");
    } H5E_END_TRY


    /* Actually, the list max can be exactly 1 greater than the
     * btree min, but no more.  Also, the errors above shouldn't
     * have corrupted the fcpl, although we do need to reset the
     * second index that we changed above.
     */
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, test_type_flags[1], 15);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 10, 11);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(fid, "H5Fcreate");
    ret = H5Fclose(fid);
    CHECK_I(ret, "H5Fclose");

    /* Test edge cases; H5O_SHMESG_MAX_NINDEXES and H5O_SHMESG_MAX_LIST_SIZE should be
     * valid values.  Also, creating a file with uninitialized indexes
     * (indexes 3-5) should work.
     */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, H5O_SHMESG_MAX_NINDEXES);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, H5O_SHMESG_MAX_LIST_SIZE, H5O_SHMESG_MAX_LIST_SIZE);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(fid, "H5Fcreate");


    /* Clean up */
    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");
    ret = H5Fclose(fid);
    CHECK_I(ret, "H5Fclose");
}


/*-------------------------------------------------------------------------
 * Function:    make_dtype_1
 *
 * Purpose:     Creates a complicated datatype for use in testing
 *              shared object header messages. The important thing is that
 *              the datatypes must take a lot of space to store on disk.
 *
 * Return:      Success:        datatype ID (should be closed by calling function)
 *              Failure:        negative
 *
 * Programmer:  James Laird
 *              Saturday, August 26, 2006
 *
 *-------------------------------------------------------------------------
 */
static hid_t
make_dtype_1(void)
{
    hid_t dtype1_id = -1;
    hid_t str_id = -1;

    /* Create compound datatype. */
    if((dtype1_id = H5Tcreate(H5T_COMPOUND, sizeof(struct dtype1_struct))) < 0) TEST_ERROR

    if(H5Tinsert(dtype1_id, "i1", HOFFSET(dtype1_struct, i1), H5T_NATIVE_INT) < 0) TEST_ERROR

    str_id = H5Tcopy(H5T_C_S1);
    if(H5Tset_size(str_id, (size_t)10) < 0) TEST_ERROR

    if(H5Tinsert(dtype1_id, "string", HOFFSET(dtype1_struct, str), str_id) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i2", HOFFSET(dtype1_struct, i2), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i3", HOFFSET(dtype1_struct, i3), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i4", HOFFSET(dtype1_struct, i4), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i5", HOFFSET(dtype1_struct, i5), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i6", HOFFSET(dtype1_struct, i6), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i7", HOFFSET(dtype1_struct, i7), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "i8", HOFFSET(dtype1_struct, i8), H5T_NATIVE_INT) < 0) TEST_ERROR
    if(H5Tinsert(dtype1_id, "f1", HOFFSET(dtype1_struct, f1), H5T_NATIVE_FLOAT) < 0) TEST_ERROR

    if(H5Tclose(str_id) < 0) TEST_ERROR

    return dtype1_id;

error:
    H5E_BEGIN_TRY {
      H5Tclose(str_id);
      H5Tclose(dtype1_id);
    } H5E_END_TRY
    return -1;
}

/*-------------------------------------------------------------------------
 * Function:    make_dtype_2
 *
 * Purpose:     Creates complicated datatypes for use in testing
 *              shared object header messages. The important thing is that
 *              the datatypes must take a lot of space to store on disk.
 *
 * Return:      Success:        datatype ID (should be closed by calling function)
 *              Failure:        negative
 *
 * Programmer:  James Laird
 *              Saturday, August 26, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hid_t
make_dtype_2(void)
{
    hid_t dtype2_id = -1;
    hid_t enum_id= -1;
    hid_t int_id=-1;
    int x;
    hsize_t dims[] = {2, 1, 2, 4};
    size_t size;

    /* Create an int with a strange precision */
    if((int_id = H5Tcopy(H5T_NATIVE_INT)) < 0) TEST_ERROR
    if(H5Tset_precision(int_id, (size_t)24) < 0) TEST_ERROR

    /* Create an enumeration using that int */
    if((enum_id = H5Tenum_create(int_id)) < 0) TEST_ERROR

    for(x = 0; x < ENUM_NUM_MEMBS; x++)
      if(H5Tenum_insert(enum_id, ENUM_NAME[x], &ENUM_VAL[x]) < 0) TEST_ERROR

    /* Create arrays of arrays of arrays of enums */
    if((dtype2_id = H5Tarray_create2(enum_id, 3, dims)) < 0) TEST_ERROR
    if((dtype2_id = H5Tarray_create2(dtype2_id, 4, dims)) < 0) TEST_ERROR
    if((dtype2_id = H5Tarray_create2(dtype2_id, 2, dims)) < 0) TEST_ERROR
    if((dtype2_id = H5Tarray_create2(dtype2_id, 1, dims)) < 0) TEST_ERROR

    if(H5Tclose(enum_id) < 0) TEST_ERROR
    if(H5Tclose(int_id) < 0) TEST_ERROR

    /* Check the datatype size.  If this is different than the #defined
     * size then the fills values will have the wrong size.
     */
    size = H5Tget_size(dtype2_id);
    if(size != DTYPE2_SIZE) TEST_ERROR

    return dtype2_id;

error:
    H5E_BEGIN_TRY {
      H5Tclose(dtype2_id);
      H5Tclose(enum_id);
      H5Tclose(int_id);
    } H5E_END_TRY
    return -1;
}


/*-------------------------------------------------------------------------
 * Function:    close_reopen_file
 *
 * Purpose:     Closes a file and then reopens it.  Used to ensure that
 *              SOHMs are written to and read from disk
 *
 * Return:      Success:        new hid_t for the file
 *              Failure:        Negative
 *
 * Programmer:  James Laird
 *              Wednesday, October 4, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static hid_t
close_reopen_file(hid_t file, const char* filename, hid_t fapl_id)
{
    hid_t fid;

    if(H5Fclose(file) < 0) FAIL_STACK_ERROR
    if((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl_id)) < 0) FAIL_STACK_ERROR

    return(fid);

error:
    return -1;
}


/*-------------------------------------------------------------------------
 * Function:    size1_helper
 *
 * Purpose:     Creates object headers that use a large datatype message.
 *
 *              Used in test_sohm_basic.  Should close the file ID passed in.
 *              Set test_file_closing to 1 to add file closing and reopening
 *              whenever possible (to test that SOHMs are written correctly
 *              on disk and not just in memory).
 *
 * Return:      Success:        file ID (may not be the same one passed in)
 *              Failure:        Negative
 *
 * Programmer:  James Laird
 *              Monday, April 10, 2006
 *
 *-------------------------------------------------------------------------
 */
static hid_t
size1_helper(hid_t file, const char* filename, hid_t fapl_id, int test_file_closing)
{
    dtype1_struct wdata;
    dtype1_struct rdata;
    hid_t       dtype1_id = -1;
    hid_t       space_id = -1;
    hid_t       dset_id = -1;
    hsize_t     dim1[1];
    int         x;

    /* Closing and re-opening the file takes a long time on systems without
     * local disks.  Don't close and reopen if express testing is enabled.
     */
    if(GetTestExpress() > 1)
      test_file_closing = 0;

    /* Intialize wdata */
    HDmemset(&wdata, 0, sizeof(wdata));
    wdata.i1 = 11;
    HDstrcpy(wdata.str, "string");
    wdata.i2 = 22;
    wdata.i3 = 33;
    wdata.i4 = 44;
    wdata.i5 = 55;
    wdata.i6 = 66;
    wdata.i7 = 77;
    wdata.i8 = 88;
    wdata.f1 = 0.0F;

    /* Intialize rdata */
    HDmemset(&rdata, 0, sizeof(rdata));

    if((dtype1_id = make_dtype_1()) < 0) TEST_ERROR

    /* Create the dataspace and dataset */
    dim1[0] = 1;
    if((space_id = H5Screate_simple(1, dim1, NULL)) < 0) TEST_ERROR

    if((dset_id = H5Dcreate2(file, DSETNAME[0], dtype1_id, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) FAIL_STACK_ERROR

    /* Test writing and reading */
    if(H5Dwrite(dset_id, dtype1_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, &wdata) < 0) FAIL_STACK_ERROR

    if(H5Dread(dset_id, dtype1_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, &rdata) < 0) FAIL_STACK_ERROR

    if(rdata.i1 != wdata.i1 || rdata.i2 != wdata.i2 || HDstrcmp(rdata.str, wdata.str)) {
        H5_FAILED(); AT();
        printf("incorrect read data\n");
        goto error;
    } /* end if */
    if(H5Dclose(dset_id) < 0) FAIL_STACK_ERROR

    /* Close and re-open the file if requested*/
    if(test_file_closing)
        if((file = close_reopen_file(file, filename, fapl_id)) < 0) TEST_ERROR

    /* Create more datasets with the same datatype */
    if((dset_id = H5Dcreate2(file, DSETNAME[1], dtype1_id, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
    if(H5Dclose(dset_id) < 0) FAIL_STACK_ERROR

    /* Close and re-open the file if requested*/
    if(test_file_closing)
        if((file = close_reopen_file(file, filename, fapl_id)) < 0) TEST_ERROR

    if((dset_id = H5Dcreate2(file, DSETNAME[2], dtype1_id, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
    if(H5Dclose(dset_id) < 0) TEST_ERROR

    /* Close and re-open the file if requested*/
    if(test_file_closing)
        if((file = close_reopen_file(file, filename, fapl_id)) < 0) TEST_ERROR

    if((dset_id = H5Dcreate2(file,DSETNAME[3],dtype1_id,space_id,H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR

    /* Write data to dataset 3 for later */
    if(H5Dwrite(dset_id, dtype1_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, &wdata) < 0) TEST_ERROR

    if(H5Dclose(dset_id) < 0) TEST_ERROR
    if(H5Tclose(dtype1_id) < 0) TEST_ERROR

    /* Close and re-open the file if requested*/
    if(test_file_closing)
        if((file = close_reopen_file(file, filename, fapl_id)) < 0) TEST_ERROR

    /* Make sure the data has been written successfully */
    if((dset_id = H5Dopen2(file, DSETNAME[0], H5P_DEFAULT)) < 0) TEST_ERROR
    if((dtype1_id = H5Dget_type(dset_id)) < 0) TEST_ERROR

    /* Read data back again */
    HDmemset(&rdata, 0, sizeof(rdata));
    if(H5Dread(dset_id, dtype1_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, &rdata) < 0) {
        H5_FAILED(); AT();
        printf("Can't read data\n");
        goto error;
    } /* end if */

    if(rdata.i1 != wdata.i1 || rdata.i2 != wdata.i2 || HDstrcmp(rdata.str, wdata.str)) {
        H5_FAILED(); AT();
        printf("incorrect read data\n");
        goto error;
    } /* end if */

    if(H5Dclose(dset_id) < 0) TEST_ERROR

    /* Create several copies of the dataset (this increases the amount of space saved by sharing the datatype message) */
    for(x = 0; x < SOHM_HELPER_NUM_EX_DSETS; x++) {
        if((dset_id = H5Dcreate2(file, EXTRA_DSETNAME[x], dtype1_id, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0) TEST_ERROR
        if(H5Dclose(dset_id) < 0) TEST_ERROR

        /* Close and re-open the file if requested*/
        if(test_file_closing)
            if((file = close_reopen_file(file, filename, fapl_id)) < 0) TEST_ERROR
    } /* end for */

    if(H5Tclose(dtype1_id) < 0) TEST_ERROR
    if(H5Sclose(space_id) < 0) TEST_ERROR

    /* Ensure that we can still read data back from dataset 3 */
    if((dset_id = H5Dopen2(file, DSETNAME[3], H5P_DEFAULT)) < 0) TEST_ERROR
    if((dtype1_id = H5Dget_type(dset_id)) < 0) TEST_ERROR

    /* Read data back again */
    HDmemset(&rdata, 0, sizeof(rdata));
    if(H5Dread(dset_id, dtype1_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, &rdata) < 0) {
        H5_FAILED(); AT();
        printf("Can't read data\n");
        goto error;
    } /* end if */

    if(rdata.i1 != wdata.i1 || rdata.i2 != wdata.i2 || HDstrcmp(rdata.str, wdata.str)) {
        H5_FAILED(); AT();
        printf("incorrect read data\n");
        goto error;
    } /* end if */

    if(H5Dclose(dset_id) < 0) TEST_ERROR
    if(H5Tclose(dtype1_id) < 0) TEST_ERROR
    return file;

 error:
    H5E_BEGIN_TRY {
        H5Sclose(space_id);
        H5Tclose(dtype1_id);
        H5Dclose(dset_id);
        H5Fclose(file);
    } H5E_END_TRY
    return -1;
}

/*-------------------------------------------------------------------------
 * Function:    test_sohm_size1
 *
 * Purpose:     Tests shared object header messages with a large datatype
 *
 * Programmer:  James Laird
 *              Monday, April 10, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void test_sohm_size1(void)
{
    hid_t       file = -1;
    hid_t       fcpl_id = -1;
    hid_t       fapl_id = -1;
    hsize_t     sohm_oh_size;
    hsize_t     sohm_btree_oh_size;
    h5_stat_size_t norm_empty_filesize;
    h5_stat_size_t sohm_empty_filesize;
    h5_stat_size_t sohm_btree_empty_filesize;
    h5_stat_size_t norm_final_filesize;
    h5_stat_size_t sohm_final_filesize;
    h5_stat_size_t sohm_btree_final_filesize;
    h5_stat_size_t norm_final_filesize2;
    h5_stat_size_t sohm_final_filesize2;
    h5_stat_size_t sohm_btree_final_filesize2;
    H5O_info_t  oinfo;
    unsigned    num_indexes = 1;
    unsigned    index_flags = H5O_SHMESG_DTYPE_FLAG;
    unsigned    min_mesg_size = 50;
    unsigned    list_max = 11;
    unsigned    btree_min = 10;
    herr_t      ret;

    MESSAGE(5, ("Testing that shared datatypes save space\n"));


    /* Create a FAPL with "semi" close degree, to detect dangling IDs */
    fapl_id = H5Pcreate(H5P_FILE_ACCESS);
    CHECK_I(fapl_id, "H5Pcreate");

    ret = H5Pset_fclose_degree(fapl_id, H5F_CLOSE_SEMI);
    CHECK_I(ret, "H5Pset_fclose_degree");

    /* Create a file with SOHMs disabled and get its size */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, fapl_id);
    CHECK_I(file, "H5Fcreate");

    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    /* Get the file size */
    norm_empty_filesize = h5_get_file_size(FILENAME, fapl_id);

    /* Add a bunch of large datatypes to the file */
    file = H5Fopen(FILENAME, H5F_ACC_RDWR, fapl_id);
    CHECK_I(file, "H5Fopen");
    file = size1_helper(file, FILENAME, fapl_id, 0);
    CHECK_I(file, "size1_helper");
    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    /* Get the new file size */
    norm_final_filesize = h5_get_file_size(FILENAME, fapl_id);

    /* Use the same property list to create a new file. */
    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, fapl_id);
    CHECK_I(file, "H5Fcreate");

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");

    /* Add the same large datatypes, but keep closing and re-opening the file */
    file = size1_helper(file, FILENAME, fapl_id, 1);
    CHECK_I(file, "size1_helper");
    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    /* Get the file size */
    norm_final_filesize2 = h5_get_file_size(FILENAME, fapl_id);



    /* Now do the same thing for a file with SOHMs enabled */
    /* Create FCPL with SOHMs enabled */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    /* Tests one index holding only datatype messages */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, num_indexes);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, index_flags, min_mesg_size);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, list_max, btree_min);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Create a file */
    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, fapl_id);
    CHECK_I(file, "H5Fcreate");

    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    sohm_empty_filesize = h5_get_file_size(FILENAME, fapl_id);

    /* Add a bunch of datatypes to this file */
    file = H5Fopen(FILENAME, H5F_ACC_RDWR, fapl_id);
    CHECK_I(file, "H5Fopen");
    file = size1_helper(file, FILENAME, fapl_id, 0);
    CHECK_I(file, "size1_helper");

    /* Get the size of a dataset object header */
    ret = H5Oget_info_by_name(file, DSETNAME[0], &oinfo, H5P_DEFAULT);
    CHECK_I(ret, "H5Oget_info_by_name");
    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");
    sohm_oh_size = oinfo.hdr.space.total;

    /* Get the new file size */
    sohm_final_filesize = h5_get_file_size(FILENAME, fapl_id);

    /* Use the same property list to create a new file. */
    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, fapl_id);
    CHECK_I(file, "H5Fcreate");

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");

    /* Add the same large datatypes, but keep closing and re-opening the file */
    file = size1_helper(file, FILENAME, fapl_id, 1);
    CHECK_I(file, "size1_helper");
    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    /* Get the file size */
    sohm_final_filesize2 = h5_get_file_size(FILENAME, fapl_id);



    /* Create FCPL with SOHMs enabled that uses a B-tree index */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    /* Tests one index holding only datatype messages */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, num_indexes);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, index_flags, min_mesg_size);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Create a file */
    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, fapl_id);
    CHECK_I(file, "H5Fcreate");

    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    sohm_btree_empty_filesize = h5_get_file_size(FILENAME, fapl_id);

    /* Add a bunch of datatypes to this file */
    file = H5Fopen(FILENAME, H5F_ACC_RDWR, fapl_id);
    CHECK_I(file, "H5Fopen");
    file = size1_helper(file, FILENAME, fapl_id, 0);
    CHECK_I(file, "size1_helper");

    /* Get the size of a dataset object header */
    ret = H5Oget_info_by_name(file, DSETNAME[0], &oinfo, H5P_DEFAULT);
    CHECK_I(ret, "H5Oget_info_by_name");
    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");
    sohm_btree_oh_size = oinfo.hdr.space.total;

    /* Get the new file size */
    sohm_btree_final_filesize = h5_get_file_size(FILENAME, fapl_id);

    /* Use the same property list to create a new file. */
    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, fapl_id);
    CHECK_I(file, "H5Fcreate");

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");

    /* Add the same large datatypes, but keep closing and re-opening the file */
    file = size1_helper(file, FILENAME, fapl_id, 1);
    CHECK_I(file, "size1_helper");
    ret = H5Fclose(file);
    CHECK_I(ret, "H5Fclose");

    /* Get the file size */
    sohm_btree_final_filesize2 = h5_get_file_size(FILENAME, fapl_id);



    /* Check that all sizes make sense */
    /* Object headers in SOHM files should be smaller than normal object
     * headers.  How the SOHM messages are stored shouldn't affect the
     * size of the object header.
     */
    if(sohm_oh_size != sohm_btree_oh_size)
        VERIFY(sohm_btree_oh_size, 1, "H5Oget_info_by_name");

    /* Both sohm files should be bigger than a normal file when empty.
     * It's hard to say whether a B-tree with no nodes allocated should be
     * smaller than a list with SOHM_HELPER_NUM_DTYPES elements.
     * The sizes here shouldn't really be 1; it's just used to ensure that the
     * error code triggers.
     */
    if(sohm_empty_filesize <= norm_empty_filesize)
        VERIFY(sohm_empty_filesize, 1, "h5_get_file_size");

    if(sohm_btree_empty_filesize <= norm_empty_filesize)
        VERIFY(sohm_btree_empty_filesize, 1, "h5_get_file_size");

    /* When full, the sohm btree file should be smaller than the normal file.
     * The sohm list file should be at least as small, since it doesn't need the
     * overhead of a B-tree.
     */
    if(sohm_btree_final_filesize >= norm_final_filesize)
        VERIFY(sohm_btree_final_filesize, 1, "h5_get_file_size");
    if(sohm_final_filesize > sohm_btree_final_filesize)
        VERIFY(sohm_final_filesize, 1, "h5_get_file_size");

    /* This shouldn't change even if we open and close the file */
    if(sohm_btree_final_filesize2 >= norm_final_filesize2)
        VERIFY(sohm_btree_final_filesize2, 1, "h5_get_file_size");
    if(sohm_final_filesize2 > sohm_btree_final_filesize2)
        VERIFY(sohm_final_filesize2, 1, "h5_get_file_size");

    ret = H5Pclose(fapl_id);
    CHECK_I(ret, "H5Pclose");
}


/*-------------------------------------------------------------------------
 * Function:    sohm_attr_helper
 *
 * Purpose:     Given an fcpl, tests creating attributes with and without
 *              committed datatypes.
 *
 * Programmer:  James Laird
 *              Thursday, November 30, 2006
 *
 *-------------------------------------------------------------------------
 */
static void sohm_attr_helper(hid_t fcpl_id)
{
    hid_t file_id;
    hid_t type_id;
    hid_t space_id;
    hid_t group_id;
    hid_t attr_id, attr_id2;
    hsize_t dims = 2;
    int wdata[2] = {7, 42};
    int rdata[2];
    herr_t ret;
    size_t x;

    /*----------------------------------------------------------------------------
     *    Test attribute with transient datatype
     */
    /* Create a file using the fcpl */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    /* Create a normal datatype and dataset */
    type_id = H5Tcopy(H5T_NATIVE_INT);
    CHECK_I(type_id, "H5Tcopy");
    space_id = H5Screate_simple(1, &dims, &dims);
    CHECK_I(space_id, "H5Screate_simple");

    /* Create and verify an attribute on a group */
    group_id = H5Gcreate2(file_id, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(group_id, "H5Gcreate2");
    attr_id = H5Acreate2(group_id, "attribute", type_id, space_id, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(attr_id, "H5Acreate2");
    ret = H5Awrite(attr_id, H5T_NATIVE_INT, wdata);
    CHECK_I(ret, "H5Awrite");

    /* Close the datatype and group */
    ret = H5Tclose(type_id);
    CHECK_I(ret, "H5Tclose");
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");

    /* Flush the file to force data to be written */
    ret = H5Fflush(file_id, H5F_SCOPE_GLOBAL);
    CHECK_I(ret, "H5Fflush");

    /* Verify */
    HDmemset(rdata, 0, sizeof(rdata));
    ret = H5Aread(attr_id, H5T_NATIVE_INT, rdata);
    CHECK_I(ret, "H5Aread");
    for(x = 0; x < (size_t)dims; ++x)
        VERIFY(rdata[x], wdata[x], "H5Aread");

    /* Cleanup */
    ret = H5Aclose(attr_id);
    CHECK_I(ret, "H5Aclose");

    /*----------------------------------------------------------------------------
     *    Test attribute with committed datatype
     */
    /* Repeat with a committed datatype */
    type_id = H5Tcopy(H5T_NATIVE_INT);
    CHECK_I(type_id, "H5Tcopy");
    ret = H5Tcommit2(file_id, "datatype", type_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(ret, "H5Tcommit2");

    /* Create and verify an attribute */
    group_id = H5Gcreate2(file_id, "another_group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(group_id, "H5Gcreate2");
    attr_id = H5Acreate2(group_id, "attribute", type_id, space_id, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(attr_id, "H5Acreate2");
    ret = H5Awrite(attr_id, H5T_NATIVE_INT, wdata);
    CHECK_I(ret, "H5Awrite");

    /* Close the datatype and group */
    ret = H5Tclose(type_id);
    CHECK_I(ret, "H5Tclose");
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");

    /* Flush the file to force data to be written */
    ret = H5Fflush(file_id, H5F_SCOPE_GLOBAL);
    CHECK_I(ret, "H5Fflush");

    /* Verify */
    HDmemset(rdata, 0, sizeof(rdata));
    ret = H5Aread(attr_id, H5T_NATIVE_INT, rdata);
    CHECK_I(ret, "H5Aread");
    for(x = 0; x < (size_t)dims; ++x)
        VERIFY(rdata[x], wdata[x], "H5Aread");

    /* Cleanup */
    ret = H5Aclose(attr_id);
    CHECK_I(ret, "H5Aclose");

    /*----------------------------------------------------------------------------
     *    Test attribute operation with two ID handles
     */
    /* Create and verify an attribute */
    group_id = H5Gcreate2(file_id, "yet_another_group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(group_id, "H5Gcreate2");

    attr_id = H5Acreate2(group_id, "attribute", H5T_NATIVE_INT, space_id, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(attr_id, "H5Acreate2");

    /* Open the attribute to get another handle */
    attr_id2 = H5Aopen(group_id, "attribute", H5P_DEFAULT);
    CHECK_I(attr_id2, "H5Aopen");

    ret = H5Awrite(attr_id, H5T_NATIVE_INT, wdata);
    CHECK_I(ret, "H5Awrite");

    /* Close the group */
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");

    /* Flush the file to force data to be written */
    ret = H5Fflush(file_id, H5F_SCOPE_GLOBAL);
    CHECK_I(ret, "H5Fflush");

    /* Verify the data with another ID handle */
    HDmemset(rdata, 0, sizeof(rdata));
    ret = H5Aread(attr_id2, H5T_NATIVE_INT, rdata);
    CHECK_I(ret, "H5Aread");

    for(x = 0; x < (size_t)dims; ++x)
        VERIFY(rdata[x], wdata[x], "H5Aread");

    /* Cleanup */
    ret = H5Aclose(attr_id);
    CHECK_I(ret, "H5Aclose");
    ret = H5Aclose(attr_id2);
    CHECK_I(ret, "H5Aclose");

    ret = H5Sclose(space_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_attrs
 *
 * Purpose:     Attributes can be shared and can also contain shared
 *              datatype and dataspace messages.  Committed datatypes
 *              shouldn't be shared.
 *
 *              Test permutations of this.
 *
 * Programmer:  James Laird
 *              Thursday, November 30, 2006
 *
 *-------------------------------------------------------------------------
 */
static void test_sohm_attrs(void)
{
    hid_t fcpl_id;
    herr_t ret;

    MESSAGE(5, ("Testing that shared messages work with attributes\n"));

    /* Create an fcpl with no shared messages */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    /* Make sure attributes can be read with these settings (they'd better!) */
    sohm_attr_helper(fcpl_id);


    /* Run tests with only one kind of message to be shared */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ATTR_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    /* Verify */
    sohm_attr_helper(fcpl_id);

    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);

    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_DTYPE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);


    /* Run with any two types shared */
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG | H5O_SHMESG_DTYPE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);

    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ATTR_FLAG | H5O_SHMESG_DTYPE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);

    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG | H5O_SHMESG_ATTR_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);


    /* Run test with all three kinds of message shared */
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG | H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_ATTR_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);


    /* Try using two indexes */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ATTR_FLAG | H5O_SHMESG_DTYPE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_SDSPACE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);

    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_DTYPE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);

    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_ATTR_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);


    /* One index for each kind of message */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 3);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 2, H5O_SHMESG_SDSPACE_FLAG, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    sohm_attr_helper(fcpl_id);


    /* Close the FCPL */
    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");
}

/*-------------------------------------------------------------------------
 * Function:    size2_verify_plist1
 *
 * Purpose:     Verify that the property list passed in is in fact the
 *              same property list used as dcpl1_id in the size2 helper
 *              function.  This ensures that the filters can be read.
 *
 * Programmer:  James Laird
 *              Wednesday, November 22, 2006
 *
 *-------------------------------------------------------------------------
 */
static void size2_verify_plist1(hid_t plist)
{
    size_t cd_nelmts;
    unsigned int cd_value;
    char name[NAME_BUF_SIZE];
    H5Z_filter_t filter;
    hid_t dtype1_id;
    dtype1_struct fill1;
    dtype1_struct fill1_correct;
    herr_t ret;

    /* Hardcoded to correspond to dcpl1_id created in size2_helper */
    /* Check filters */
    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 0, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_SHUFFLE, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 1, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_DEFLATE, "H5Pget_filter2");
    VERIFY(cd_value, 1, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 2, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_SHUFFLE, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 3, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_FLETCHER32, "H5Pget_filter2");


    /* Check fill value */
    dtype1_id=make_dtype_1();
    CHECK_I(dtype1_id, "make_dtype_1");
    HDmemset(&fill1_correct, '1', sizeof(fill1_correct));

    ret = H5Pget_fill_value(plist, dtype1_id, &fill1);
    CHECK_I(ret, "H5Pget_fill_value");

    ret = memcmp(&fill1, &fill1_correct, sizeof(fill1_correct));
    VERIFY(ret, 0, "memcmp");

    ret = H5Tclose(dtype1_id);
    CHECK_I(ret, "H5Tclose");
}

/*-------------------------------------------------------------------------
 * Function:    size2_verify_plist2
 *
 * Purpose:     Verify that the property list passed in is in fact the
 *              same property list used as dcpl2_id in the size2 helper
 *              function.  This ensures that the filters can be read.
 *
 * Programmer:  James Laird
 *              Wednesday, November 22, 2006
 *
 *-------------------------------------------------------------------------
 */
static void size2_verify_plist2(hid_t plist)
{
    size_t cd_nelmts;
    unsigned int cd_value;
    char name[NAME_BUF_SIZE];
    H5Z_filter_t filter;
    hid_t dtype2_id;
    char fill2[DTYPE2_SIZE];
    char fill2_correct[DTYPE2_SIZE];
    herr_t ret;

    /* Hardcoded to correspond to dcpl1_id created in size2_helper */
    /* Check filters */
    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 0, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_DEFLATE, "H5Pget_filter2");
    VERIFY(cd_value, 1, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 1, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_DEFLATE, "H5Pget_filter2");
    VERIFY(cd_value, 2, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 2, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_DEFLATE, "H5Pget_filter2");
    VERIFY(cd_value, 2, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 3, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_DEFLATE, "H5Pget_filter2");
    VERIFY(cd_value, 1, "H5Pget_filter2");

    cd_nelmts = 1;
    filter = H5Pget_filter2(plist, 4, NULL, &cd_nelmts, &cd_value, (size_t)NAME_BUF_SIZE, name, NULL);
    CHECK_I(filter, "H5Pget_filter2");
    VERIFY(filter, H5Z_FILTER_DEFLATE, "H5Pget_filter2");
    VERIFY(cd_value, 5, "H5Pget_filter2");


    /* Check fill value */
    dtype2_id = make_dtype_2();
    CHECK_I(dtype2_id, "make_dtype_2");
    HDmemset(&fill2_correct, '2', (size_t)DTYPE2_SIZE);

    ret = H5Pget_fill_value(plist, dtype2_id, &fill2);
    CHECK_I(ret, "H5Pget_fill_value");

    ret = HDmemcmp(&fill2, &fill2_correct, (size_t)DTYPE2_SIZE);
    VERIFY(ret, 0, "memcmp");

    ret = H5Tclose(dtype2_id);
    CHECK_I(ret, "H5Tclose");
}

#ifdef NOT_NOW

/*-------------------------------------------------------------------------
 * Function:    size2_dump_struct
 *
 * Purpose:     A debugging function to print the contents of a
 *              size2_helper_struct (which holds the various sizes for a
 *              given file during the size2_helper function).
 *
 * Programmer:  James Laird
 *              Friday, January 26, 2007
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
size2_dump_struct(const char *name, size2_helper_struct *sizes)
{
  puts(name);
  printf("    empty size: %llu\n", (unsigned long long)sizes->empty_size);
  printf(" first dataset: %llu \tdelta: %llu\n", (unsigned long long)sizes->first_dset, (unsigned long long)(sizes->first_dset - sizes->empty_size));
  printf("second dataset: %llu \tdelta: %llu\n", (unsigned long long)sizes->second_dset, (unsigned long long)(sizes->second_dset - sizes->first_dset));
  printf("       dsets 1: %llu \tdelta: %llu\n", (unsigned long long)sizes->dsets1, (unsigned long long)(sizes->dsets1 - sizes->second_dset));
  printf("       dsets 2: %llu \tdelta: %llu\n", (unsigned long long)sizes->dsets2, (unsigned long long)(sizes->dsets2 - sizes->dsets1));
  printf("   interleaved: %llu \tdelta: %llu\n", (unsigned long long)sizes->interleaved, (unsigned long long)(sizes->interleaved - sizes->dsets2));
  printf("    attributes: %llu \tdelta: %llu\n", (unsigned long long)sizes->attrs1, (unsigned long long)(sizes->attrs1 - sizes->interleaved));
  printf("  attributes 2: %llu \tdelta: %llu\n", (unsigned long long)sizes->attrs2, (unsigned long long)(sizes->attrs2 - sizes->attrs1));
}
#endif /* NOT_NOW */


/*-------------------------------------------------------------------------
 * Function:    size2_helper
 *
 * Purpose:     A helper functon for test_sohm_size2.
 *
 *              Creates a file using the given fcpl, then creates lots
 *              of different kinds of messages within the file and
 *              returns the size of the file for comparison.
 *
 *              If test_file_closing is not zero, closes and re-opens
 *              the file after every write.
 *
 *              Doesn't close the property list.  Prints an error message
 *              if there's a failure, but doesn't alter its return value.
 *
 * Programmer:  James Laird
 *              Friday, November 17, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
size2_helper(hid_t fcpl_id, int test_file_closing, size2_helper_struct *ret_sizes)
{
    hid_t file_id = -1;
    hid_t dtype1_id = -1;
    hid_t dtype2_id = -1;
    hid_t dspace1_id = -1;
    hid_t dspace2_id = -1;
    hid_t dcpl1_id = -1;
    hid_t dcpl2_id = -1;
    hid_t dset_id = -1;
    hid_t attr_type_id = -1;
    hid_t attr_space_id = -1;
    hid_t attr_id = -1;
    hid_t group_id = -1;
    char attr_string1[NAME_BUF_SIZE];
    char attr_string2[NAME_BUF_SIZE];
    char attr_name[NAME_BUF_SIZE];
    int x;
    herr_t ret;

    /* Constants used in this function */
    const int rank1 = SIZE2_RANK1;
    const int rank2 = SIZE2_RANK2;
    const hsize_t dims[SIZE2_RANK2] = SIZE2_DIMS;
    dtype1_struct fill1;
    char fill2[DTYPE2_SIZE];

    /* Closing and re-opening the file takes a long time on systems without
     * local disks.  Don't close and reopen if express testing is enabled.
     */
    if(GetTestExpress() > 1)
        test_file_closing = 0;

    /* Create a file and get its size */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");

    /* Get the file size */
    ret_sizes->empty_size = h5_get_file_size(FILENAME, H5P_DEFAULT);

    /* Re-open the file and set up messages to write */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fopen");

    /* Create two large datatype messages */
    dtype1_id = make_dtype_1();
    CHECK_I(dtype1_id, "make_dtype_1");
    dtype2_id = make_dtype_2();
    CHECK_I(dtype2_id, "make_dtype_2");

    /* Create some large dataspaces */
    dspace1_id = H5Screate_simple(rank1, dims, dims);
    CHECK_I(dspace1_id, "H5Screate_simple");
    dspace2_id = H5Screate_simple(rank2, dims, dims);
    CHECK_I(dspace2_id, "H5Screate_simple");

    /* fill1 and fill2 are fill values for the two datatypes.
     * We'll set them in the DCPL.
     */
    HDmemset(&fill1, '1', sizeof(dtype1_struct));
    HDmemset(&fill2, '2', (size_t)DTYPE2_SIZE);

    dcpl1_id = H5Pcreate(H5P_DATASET_CREATE);
    CHECK_I(dcpl1_id, "H5Pcreate");
    H5Pset_fill_value(dcpl1_id, dtype1_id, &fill1);

    dcpl2_id = H5Pcreate(H5P_DATASET_CREATE);
    CHECK_I(dcpl2_id, "H5Pcreate");
    H5Pset_fill_value(dcpl2_id, dtype2_id, &fill2);

    /* Filter messages we'll create by setting them in a DCPL. These
     * values don't need to make sense, they just need to take up space.
     */
    ret = H5Pset_chunk(dcpl1_id, rank1, dims);
    CHECK_I(ret, "H5Pset_chunk");
    ret = H5Pset_shuffle(dcpl1_id);
    CHECK_I(ret, "H5Pset_shuffle");
    ret = H5Pset_deflate(dcpl1_id, 1);
    CHECK_I(ret, "H5Pset_deflate");
    ret = H5Pset_shuffle(dcpl1_id);
    CHECK_I(ret, "H5Pset_shuffle");
    ret = H5Pset_fletcher32(dcpl1_id);
    CHECK_I(ret, "H5Pset_fletcher32");
    /* Make sure that this property list is what it should be */
    size2_verify_plist1(dcpl1_id);

    /* Second dcpl */
    ret = H5Pset_chunk(dcpl2_id, rank2, dims);
    CHECK_I(ret, "H5Pset_chunk");
    ret = H5Pset_deflate(dcpl2_id, 1);
    CHECK_I(ret, "H5Pset_deflate");
    ret = H5Pset_deflate(dcpl2_id, 2);
    CHECK_I(ret, "H5Pset_deflate");
    ret = H5Pset_deflate(dcpl2_id, 2);
    CHECK_I(ret, "H5Pset_deflate");
    ret = H5Pset_deflate(dcpl2_id, 1);
    CHECK_I(ret, "H5Pset_deflate");
    ret = H5Pset_deflate(dcpl2_id, 5);
    CHECK_I(ret, "H5Pset_deflate");
    /* Make sure that this property list is what it should be */
    size2_verify_plist2(dcpl2_id);

    /* Set up attribute data */
    HDmemset(attr_string1, 0, (size_t)NAME_BUF_SIZE);
    HDmemset(attr_string2, 0, (size_t)NAME_BUF_SIZE);
    HDstrcpy(attr_string1, LONG_STRING);
    HDstrcpy(attr_string2, LONG_STRING);
    attr_string2[1] = '1';        /* The second string starts "01 index..." */

    /* Set up attribute metadata */
    attr_type_id = H5Tcopy(H5T_C_S1);
    CHECK_I(attr_type_id, "H5Tcopy");
    ret = H5Tset_size(attr_type_id, (size_t)NAME_BUF_SIZE);
    CHECK_I(ret, "H5Tset_size");
    attr_space_id = H5Screate_simple(1, dims, dims);
    CHECK_I(attr_space_id, "H5Screate_simple");

    /* Create datasets with a big datatype, dataspace, fill value,
     * and filter pipeline.
     */
    for(x = 0; x < NUM_DATASETS; ++x) {
        dset_id = H5Dcreate2(file_id, DSETNAME[x], dtype1_id, dspace1_id, H5P_DEFAULT, dcpl1_id, H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dcreate2");

        attr_id = H5Acreate2(dset_id, "attr_name", attr_type_id, attr_space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK_I(attr_id, "H5Acreate2");
        ret = H5Awrite(attr_id, attr_type_id, attr_string1);
        CHECK_I(ret, "H5Awrite");

        ret = H5Aclose(attr_id);
        CHECK_I(ret, "H5Aclose");
        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");

        /* Gather extra statistics on first two datasets in file */
        if(x < 2) {
            ret = H5Fclose(file_id);
            CHECK_I(ret, "H5Fclose");

            /* Get the file's size now */
            if(x == 0)
                ret_sizes->first_dset = h5_get_file_size(FILENAME, H5P_DEFAULT);
            else
                ret_sizes->second_dset = h5_get_file_size(FILENAME, H5P_DEFAULT);

            file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
            CHECK_I(file_id, "H5Fopen");
        } /* end if */
        /* Close & reopen file if requested */
        else if(test_file_closing) {
            file_id = close_reopen_file(file_id, FILENAME, H5P_DEFAULT);
            CHECK_I(file_id, "H5Fopen");
        } /* end if */
    } /* end for */

    /* Close file and get its size now */
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    ret_sizes->dsets1 = h5_get_file_size(FILENAME, H5P_DEFAULT);


    /* Now create a new group filled with datasets that use all different messages */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fopen");
    group_id = H5Gcreate2(file_id, "group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(group_id, "H5Gcreate2");

    /* Create NUM_DATASETS datasets in the new group */
    for(x=0; x<NUM_DATASETS; ++x)
    {
        dset_id = H5Dcreate2(group_id, DSETNAME[x], dtype2_id, dspace2_id, H5P_DEFAULT, dcpl2_id, H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dcreate2");

        attr_id = H5Acreate2(dset_id, "attr_name", attr_type_id, attr_space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK_I(attr_id, "H5Acreate2");
        ret = H5Awrite(attr_id, attr_type_id, attr_string2);
        CHECK_I(ret, "H5Awrite");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Aclose(attr_id);
        CHECK_I(ret, "H5Aclose");

        /* Close everything & reopen file if requested */
        if(test_file_closing) {
            ret = H5Gclose(group_id);
            CHECK_I(ret, "H5Gclose");
            file_id = close_reopen_file(file_id, FILENAME, H5P_DEFAULT);
            CHECK_I(file_id, "H5Fopen");
            group_id = H5Gopen2(file_id, "group", H5P_DEFAULT);
            CHECK_I(group_id, "H5Gopen2");
        }
    }

    /* Close file and get its size now */
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    ret_sizes->dsets2 = h5_get_file_size(FILENAME, H5P_DEFAULT);


    /* Create a new group and interleave writes of datasets types 1 and 2. */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fopen");
    group_id = H5Gcreate2(file_id, "interleaved group", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(group_id, "H5Gcreate2");

    /* Create NUM_DATASETS datasets in the new group */
    for(x=0; x<NUM_DATASETS; x+=2)
    {
        dset_id = H5Dcreate2(group_id, DSETNAME[x], dtype1_id, dspace1_id, H5P_DEFAULT, dcpl1_id, H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dcreate2");

        attr_id = H5Acreate2(dset_id, "attr_name", attr_type_id, attr_space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK_I(attr_id, "H5Acreate2");
        ret = H5Awrite(attr_id, attr_type_id, attr_string1);
        CHECK_I(ret, "H5Awrite");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Aclose(attr_id);
        CHECK_I(ret, "H5Aclose");

        dset_id = H5Dcreate2(group_id, DSETNAME[x+1], dtype2_id, dspace2_id, H5P_DEFAULT, dcpl2_id, H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dcreate2");

        attr_id = H5Acreate2(dset_id, "attr_name", attr_type_id, attr_space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK_I(attr_id, "H5Acreate2");
        ret = H5Awrite(attr_id, attr_type_id, attr_string2);
        CHECK_I(ret, "H5Awrite");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Aclose(attr_id);
        CHECK_I(ret, "H5Aclose");

        /* Close everything & reopen file if requested */
        if(test_file_closing) {
            ret = H5Gclose(group_id);
            CHECK_I(ret, "H5Gclose");
            file_id = close_reopen_file(file_id, FILENAME, H5P_DEFAULT);
            CHECK_I(file_id, "H5Fopen");
            group_id = H5Gopen2(file_id, "interleaved group", H5P_DEFAULT);
            CHECK_I(group_id, "H5Gopen2");
        }
    }

    /* Close file and get its size now */
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    ret_sizes->interleaved = h5_get_file_size(FILENAME, H5P_DEFAULT);

    /* Create lots of new attribute messages on the group
     * (using different strings for the attribute)
     */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fopen");
    group_id = H5Gopen2(file_id, "group", H5P_DEFAULT);
    CHECK_I(group_id, "H5Gopen2");

    HDstrcpy(attr_name, "00 index");

    for(x = 0; x < NUM_ATTRIBUTES; ++x) {
        /* Create a unique name and value for each attribute */
        attr_string1[0] = attr_name[0] = (char)((x / 10) + '0');
        attr_string1[1] = attr_name[1] = (char)((x % 10) + '0');

        /* Create an attribute on the group */
        attr_id = H5Acreate2(group_id, attr_name, attr_type_id, attr_space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK_I(attr_id, "H5Acreate2");
        ret = H5Awrite(attr_id, attr_type_id, attr_string1);
        CHECK_I(ret, "H5Awrite");

        ret = H5Aclose(attr_id);
        CHECK_I(ret, "H5Aclose");

        /* Close everything & reopen file if requested */
        if(test_file_closing) {
            ret = H5Gclose(group_id);
            CHECK_I(ret, "H5Gclose");
            file_id = close_reopen_file(file_id, FILENAME, H5P_DEFAULT);
            CHECK_I(file_id, "H5Fopen");
            group_id = H5Gopen2(file_id, "group", H5P_DEFAULT);
            CHECK_I(group_id, "H5Gopen2");
        }
    }

    /* Close file and get its size now */
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    ret_sizes->attrs1 = h5_get_file_size(FILENAME, H5P_DEFAULT);


    /* Create all of the attributes again on the other group */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fopen");
    group_id = H5Gopen2(file_id, "interleaved group", H5P_DEFAULT);
    CHECK_I(group_id, "H5Gopen2");

    for(x=0; x<NUM_ATTRIBUTES; ++x)
    {
        /* Create the same name and value for each attribute as before */
        attr_string1[0] = attr_name[0] = (char)((x / 10) + '0');
        attr_string1[1] = attr_name[1] = (char)((x % 10) + '0');

        /* Create an attribute on the group */
        attr_id = H5Acreate2(group_id, attr_name, attr_type_id, attr_space_id, H5P_DEFAULT, H5P_DEFAULT);
        CHECK_I(attr_id, "H5Acreate2");
        ret = H5Awrite(attr_id, attr_type_id, attr_string1);
        CHECK_I(ret, "H5Awrite");

        ret = H5Aclose(attr_id);
        CHECK_I(ret, "H5Aclose");

        /* Close everything & reopen file if requested */
        if(test_file_closing) {
            ret = H5Gclose(group_id);
            CHECK_I(ret, "H5Gclose");
            file_id = close_reopen_file(file_id, FILENAME, H5P_DEFAULT);
            CHECK_I(file_id, "H5Fopen");
            group_id = H5Gopen2(file_id, "interleaved group", H5P_DEFAULT);
            CHECK_I(group_id, "H5Gopen2");
        }
    }
    /* Close file and get its size now */
    ret = H5Gclose(group_id);
    CHECK_I(ret, "H5Gclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    ret_sizes->attrs2 = h5_get_file_size(FILENAME, H5P_DEFAULT);


    /* Close everything */
    ret = H5Sclose(attr_space_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Tclose(attr_type_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Tclose(dtype1_id);
    CHECK_I(ret, "H5Tclose");
    ret = H5Tclose(dtype2_id);
    CHECK_I(ret, "H5Tclose");
    ret = H5Sclose(dspace1_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(dspace2_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Pclose(dcpl1_id);
    CHECK_I(ret, "H5Pclose");
    ret = H5Pclose(dcpl2_id);
    CHECK_I(ret, "H5Pclose");

    return 0;
}


/*-------------------------------------------------------------------------
 * Function:    size2_verify
 *
 * Purpose:     A helper functon to verify the file created by size2_helper.
 *
 *              Runs various tests (not exhaustive) to ensure that the
 *              file FILENAME actually has the structure that size2_helper
 *              should have created.
 *
 * Programmer:  James Laird
 *              Friday, November 17, 2006
 *
 *-------------------------------------------------------------------------
 */
static void size2_verify(void)
{
    hid_t file_id = -1;
    hid_t dset_id=-1;
    hid_t plist_id=-1;
    hid_t space_id=-1;
    hid_t group1_id, group2_id;
    hid_t attr1_id, attr2_id;
    hid_t attr_type_id;
    int x, y;
    herr_t ret;
    char attr_string[NAME_BUF_SIZE];
    char attr_correct_string[NAME_BUF_SIZE];
    char attr_name[NAME_BUF_SIZE];
    int ndims;
    hsize_t dims[SIZE2_RANK2];
    hsize_t correct_dims[SIZE2_RANK2] = SIZE2_DIMS;

    file_id = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fopen");


    /* Verify property lists and dataspaces */

    /* Get property lists from first batch of datasets */
    for(x = 0; x < NUM_DATASETS; ++x) {
        dset_id = H5Dopen2(file_id, DSETNAME[x], H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dopen2");
        plist_id = H5Dget_create_plist(dset_id);
        CHECK_I(plist_id, "H5Dget_create_plist");
        size2_verify_plist1(plist_id);
        ret = H5Pclose(plist_id);
        CHECK_I(ret, "H5Pclose");

        space_id = H5Dget_space(dset_id);
        CHECK_I(space_id, "H5Dget_space");
        ndims = H5Sget_simple_extent_dims(space_id, dims, NULL);
        CHECK_I(ndims, "H5Sget_simple_extent_dims");
        VERIFY(ndims, SIZE2_RANK1, "H5Sget_simple_extent_dims");
        for(y = 0; y < ndims; ++y)
            VERIFY(dims[y], correct_dims[y], "H5Sget_simple_extent_dims");

        ret = H5Sclose(space_id);
        CHECK_I(ret, "H5Sclose");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");
    }

    /* Get property lists from second batch of datasets */
    group1_id = H5Gopen2(file_id, "group", H5P_DEFAULT);
    CHECK_I(group1_id, "H5Gopen2");
    for(x = 0; x < NUM_DATASETS; ++x) {
        dset_id = H5Dopen2(group1_id, DSETNAME[x], H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dopen2");
        plist_id = H5Dget_create_plist(dset_id);
        CHECK_I(plist_id, "H5Dget_create_plist");
        size2_verify_plist2(plist_id);
        ret = H5Pclose(plist_id);
        CHECK_I(ret, "H5Pclose");

        space_id = H5Dget_space(dset_id);
        CHECK_I(space_id, "H5Dget_space");
        ndims = H5Sget_simple_extent_dims(space_id, dims, NULL);
        CHECK_I(ndims, "H5Sget_simple_extent_dims");
        VERIFY(ndims, SIZE2_RANK2, "H5Sget_simple_extent_dims");
        for(y = 0; y < ndims; ++y)
            VERIFY(dims[y], correct_dims[y], "H5Sget_simple_extent_dims");

        ret = H5Sclose(space_id);
        CHECK_I(ret, "H5Sclose");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");
    } /* end for */
    ret = H5Gclose(group1_id);
    CHECK_I(ret, "H5Gclose");

    /* Get property lists from interleaved group of datasets */
    group1_id = H5Gopen2(file_id, "interleaved group", H5P_DEFAULT);
    CHECK_I(group1_id, "H5Gopen2");
    for(x = 0; x < NUM_DATASETS; x += 2) {
        /* First "type 1" dataset */
        dset_id = H5Dopen2(group1_id, DSETNAME[x], H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dopen2");
        plist_id = H5Dget_create_plist(dset_id);
        CHECK_I(plist_id, "H5Dget_create_plist");
        size2_verify_plist1(plist_id);
        ret = H5Pclose(plist_id);
        CHECK_I(ret, "H5Pclose");

        space_id = H5Dget_space(dset_id);
        CHECK_I(space_id, "H5Dget_space");
        ndims = H5Sget_simple_extent_dims(space_id, dims, NULL);
        CHECK_I(ndims, "H5Sget_simple_extent_dims");
        VERIFY(ndims, SIZE2_RANK1, "H5Sget_simple_extent_dims");
        for(y = 0; y < ndims; ++y)
            VERIFY(dims[y], correct_dims[y], "H5Sget_simple_extent_dims");

        ret = H5Sclose(space_id);
        CHECK_I(ret, "H5Sclose");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");

        /* Second "type 2" dataset */
        dset_id = H5Dopen2(group1_id, DSETNAME[x + 1], H5P_DEFAULT);
        CHECK_I(dset_id, "H5Dopen2");
        plist_id = H5Dget_create_plist(dset_id);
        CHECK_I(plist_id, "H5Dget_create_plist");
        size2_verify_plist2(plist_id);
        ret = H5Pclose(plist_id);
        CHECK_I(ret, "H5Pclose");

        space_id = H5Dget_space(dset_id);
        CHECK_I(space_id, "H5Dget_space");
        ndims = H5Sget_simple_extent_dims(space_id, dims, NULL);
        CHECK_I(ndims, "H5Sget_simple_extent_dims");
        VERIFY(ndims, SIZE2_RANK2, "H5Sget_simple_extent_dims");
        for(y = 0; y < ndims; ++y)
            VERIFY(dims[y], correct_dims[y], "H5Sget_simple_extent_dims");

        ret = H5Sclose(space_id);
        CHECK_I(ret, "H5Sclose");

        ret = H5Dclose(dset_id);
        CHECK_I(ret, "H5Dclose");
    } /* end for */
    ret = H5Gclose(group1_id);
    CHECK_I(ret, "H5Gclose");


    /* Verify attributes */

    /* Create attribute data type */
    attr_type_id = H5Tcopy(H5T_C_S1);
    CHECK_I(attr_type_id, "H5Tcopy");
    ret = H5Tset_size(attr_type_id, (size_t)NAME_BUF_SIZE);
    CHECK_I(ret, "H5Tset_size");

    /* Read attributes on both groups and verify that they are correct */
    group1_id = H5Gopen2(file_id, "group", H5P_DEFAULT);
    CHECK_I(group1_id, "H5Gopen2");
    group2_id = H5Gopen2(file_id, "interleaved group", H5P_DEFAULT);
    CHECK_I(group2_id, "H5Gopen2");

    HDmemset(attr_string, 0, (size_t)NAME_BUF_SIZE);
    HDmemset(attr_correct_string, 0, (size_t)NAME_BUF_SIZE);
    HDstrcpy(attr_correct_string, LONG_STRING);
    HDstrcpy(attr_name, "00 index");

    for(x = 0; x < NUM_ATTRIBUTES; ++x) {
        /* Create the name and correct value for each attribute */
        attr_correct_string[0] = attr_name[0] = (char)((x / 10) + '0');
        attr_correct_string[1] = attr_name[1] = (char)((x % 10) + '0');

        attr1_id = H5Aopen(group1_id, attr_name, H5P_DEFAULT);
        CHECK_I(attr1_id, "H5Aopen");
        attr2_id = H5Aopen(group2_id, attr_name, H5P_DEFAULT);
        CHECK_I(attr2_id, "H5Aopen");

        ret = H5Aread(attr1_id, attr_type_id, attr_string);
        CHECK_I(ret, "H5Aread");
        VERIFY_STR(attr_string, attr_correct_string, "H5Aread");
        ret = H5Aread(attr2_id, attr_type_id, attr_string);
        CHECK_I(ret, "H5Aread");
        VERIFY_STR(attr_string, attr_correct_string, "H5Aread");

        ret = H5Aclose(attr1_id);
        CHECK_I(attr1_id, "H5Aclose");
        ret = H5Aclose(attr2_id);
        CHECK_I(attr2_id, "H5Aclose");
    }

    /* Close everything */
    ret = H5Tclose(attr_type_id);
    CHECK_I(ret, "H5Tclose");
    ret = H5Gclose(group1_id);
    CHECK_I(ret, "H5Gclose");
    ret = H5Gclose(group2_id);
    CHECK_I(ret, "H5Gclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_size2
 *
 * Purpose:     Tests shared object header messages using size2_helper to
 *              create different kinds of big messages.
 *
 *              If close_reopen is set, closes and reopens the HDF5 file
 *              repeatedly while writing.
 *
 *              This test works by first creating FCPLs with various
 *              parameters, then creating a standard file that includes
 *              every kind of message that can be shared using the helper
 *              function size2_helper.  The test measures the size of the
 *              file at various points.  Once all of the files have been
 *              generated, the test compares the measured sizes of the files.
 *
 *
 * Programmer:  James Laird
 *              Friday, November 17, 2006
 *
 *-------------------------------------------------------------------------
 */
static void test_sohm_size2(int close_reopen)
{
    hid_t       fcpl_id = -1;
    /* Sizes for file with no shared messages at all */
    size2_helper_struct norm_sizes;
    /* Sizes for files with all messages in one index */
    size2_helper_struct list_index_med, list_index_big;
    size2_helper_struct btree_index, list_index_small;
    /* Sizes for files with messages in three different indexes */
    size2_helper_struct mult_index_med, mult_index_btree;
    /* Sizes for files that don't share all kinds of messages */
    size2_helper_struct share_some_med, share_some_btree;
    /* Sizes for files that share different sizes of messages */
    size2_helper_struct share_some_toobig_index, share_tiny_index, type_space_index;
    herr_t      ret;

    if(close_reopen == 0)
        MESSAGE(5, ("Testing that shared object header messages save space\n"))
    else
        MESSAGE(5, ("Testing that shared messages save space when file is closed and reopened\n"))

    /* Create an fcpl with SOHMs disabled */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &norm_sizes);
    size2_verify();

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");


    /* Create an fcpl with one big index */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, 20);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Set the indexes to use a medium-sized list */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 30, 25);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &list_index_med);
    size2_verify();


    /* Try making the list really big */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 1000, 900);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &list_index_big);
    size2_verify();


    /* Use a B-tree instead of a list */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &btree_index);
    size2_verify();


    /* Use such a small list that it'll become a B-tree */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 10, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &list_index_small);
    size2_verify();

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");


    /* Create a new property list that puts messages in different indexes. */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 3);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG | H5O_SHMESG_DTYPE_FLAG, 20);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_FILL_FLAG | H5O_SHMESG_PLINE_FLAG, 20);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_index(fcpl_id, 2, H5O_SHMESG_ATTR_FLAG, 20);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Use lists that are the same size as the "medium" list on the previous
     * run.
     */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 30, 25);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &mult_index_med);
    size2_verify();


    /* Use all B-trees */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &mult_index_btree);
    size2_verify();


    /* Edit the same property list (this should work) and don't share all messages.
     */
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_PLINE_FLAG, 20);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_FILL_FLAG, 100000);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_index(fcpl_id, 2, H5O_SHMESG_ATTR_FLAG | H5O_SHMESG_SDSPACE_FLAG, 20);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Use "normal-sized" lists. */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 30, 25);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &share_some_med);
    size2_verify();

    /* Use btrees. */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &share_some_btree);
    size2_verify();


    /* Change the second index to hold only gigantic messages.  Result should
     * be the same as the previous file.
     */
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_FILL_FLAG, 100000);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &share_some_toobig_index);
    size2_verify();


    /* Share even tiny dataspace and datatype messages.  This should result in
     * attribute datatypes being shared.  Make this one use "really big" lists.
     * It turns out that attribute dataspaces are just big enough that it saves
     * some space to share them, while sharing datatypes creates as much overhead
     * as one gains from sharing them.
     */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_SDSPACE_FLAG, 1);
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 1000, 900);

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &share_tiny_index);
    size2_verify();

    /* Create the same file but don't share the really tiny messages */
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_DTYPE_FLAG | H5O_SHMESG_SDSPACE_FLAG, 100);
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 1000, 900);

    /* Get the file size & verify its contents */
    size2_helper(fcpl_id, close_reopen, &type_space_index);
    size2_verify();

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");



    /* Check that all sizes make sense.  There is lots of room for inexact
     * results here since so many different factors contribute to file size.
     */


    /* Check sizes of all files created using a single index first */

    /* The empty size of each file with shared messages enabled should be the
     * same and should be bigger than a normal file.
     */
    if(norm_sizes.empty_size > list_index_med.empty_size)
        VERIFY(norm_sizes.empty_size, 1, "h5_get_file_size");
    if(list_index_med.empty_size != list_index_big.empty_size)
        VERIFY(list_index_med.empty_size, list_index_big.empty_size, "h5_get_file_size");
    if(list_index_med.empty_size != btree_index.empty_size)
        VERIFY(list_index_med.empty_size, btree_index.empty_size, "h5_get_file_size");
    if(list_index_med.empty_size != list_index_small.empty_size)
        VERIFY(list_index_med.empty_size, list_index_small.empty_size, "h5_get_file_size");
    /* The files with indexes shouldn't be that much bigger than an
     * empty file.
     */
    if(list_index_med.empty_size > (h5_stat_size_t)((float)norm_sizes.empty_size * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");


    /* Once one dataset has been created (with one of every kind of message),
     * the normal file should still be smallest.  The very small list
     * btree_convert should be smaller than the B-tree since it has no
     * extra overhead.  The small list should also be smaller than the B-tree.
     * The very large list should be much larger than anything else.
     */
    if(norm_sizes.first_dset >= list_index_small.first_dset)
        VERIFY(norm_sizes.first_dset, 1, "h5_get_file_size");
    if(list_index_small.first_dset >= btree_index.first_dset)
        VERIFY(list_index_small.first_dset, 1, "h5_get_file_size");
    if(list_index_med.first_dset >= btree_index.first_dset)
        VERIFY(btree_index.first_dset, 1, "h5_get_file_size");
    if(btree_index.first_dset >= list_index_big.first_dset)
        VERIFY(list_index_med.first_dset, 1, "h5_get_file_size");


    /* Once a few copies of the same dataset have been created, the
     * very small list shouldn't have become a B-tree yet, so it should
     * be the smallest file.  A larger list should be next, followed
     * by a B-tree, followed by a normal file, followed by a
     * list that is too large.
     */
    if(list_index_small.dsets1 >= list_index_med.dsets1)
        VERIFY(btree_index.dsets1, 1, "h5_get_file_size");
    if(list_index_med.dsets1 >= btree_index.dsets1)
        VERIFY(list_index_med.dsets1, 1, "h5_get_file_size");
    if(btree_index.dsets1 >= norm_sizes.dsets1)
        VERIFY(btree_index.dsets1, 1, "h5_get_file_size");
    if(norm_sizes.dsets1 >= list_index_big.dsets1)
        VERIFY(list_index_big.dsets1, 1, "h5_get_file_size");

    /* The size gain should have been the same for each of the lists;
     * their overhead is fixed.  The B-tree should have gained at least
     * as much, and the normal file more than that.
     */
    if((list_index_small.dsets1 - list_index_small.first_dset) !=
            (list_index_med.dsets1 - list_index_med.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_med.dsets1 - list_index_med.first_dset) !=
            (list_index_big.dsets1 - list_index_big.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_big.dsets1 - list_index_big.first_dset) >
            (btree_index.dsets1 - btree_index.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((btree_index.dsets1 - btree_index.first_dset) >=
            (norm_sizes.dsets1 - norm_sizes.first_dset))
        VERIFY(0, 1, "h5_get_file_size");


    /* Once another kind of each message has been written, the very small list
     * should convert into a B-tree.  Now the list should be smallest, then
     * the B-trees (although the converted B-tree file may be a little bigger),
     * then the normal file.  The largest list may or may not be bigger than
     * the normal file.
     */
    if(list_index_med.dsets2 >= btree_index.dsets2)
        VERIFY(list_index_med.dsets2, 1, "h5_get_file_size");
    if(btree_index.dsets2 > (h5_stat_size_t)((float)list_index_small.dsets2 * OVERHEAD_ALLOWED))
        VERIFY(btree_index.dsets2, list_index_small.dsets2, "h5_get_file_size");
    if(list_index_small.dsets2 >= norm_sizes.dsets2)
        VERIFY(btree_index.dsets2, 1, "h5_get_file_size");
    /* If the small list (now a B-tree) is bigger than the existing B-tree,
     * it shouldn't be much bigger.
     * It seems that the small lists tends to be pretty big anyway.  Allow
     * for it to have twice as much overhead.
     */
    if(list_index_small.dsets2 > (h5_stat_size_t)((float)btree_index.dsets2 * OVERHEAD_ALLOWED * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    /* The lists should have grown the least since they share messages and
     * have no extra overhead.  The normal file should have grown more than
     * either the lists or the B-tree.  The B-tree may not have grown more
     * than the lists, depending on whether it needed to split nodes or not.
     */
    if((list_index_med.dsets2 - list_index_med.dsets1) !=
            (list_index_big.dsets2 - list_index_big.dsets1))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_big.dsets2 - list_index_big.dsets1) >
            (btree_index.dsets2 - btree_index.dsets1))
        VERIFY(0, 1, "h5_get_file_size");
    if((btree_index.dsets2 - btree_index.dsets1) >=
            (norm_sizes.dsets2 - norm_sizes.dsets1))
        VERIFY(0, 1, "h5_get_file_size");


    /* Interleaving the writes should have no effect on how the messages are
     * shared.  No new messages should be written to the indexes, so the
     * sohm files will only get a little bit bigger.
     */
    if(list_index_med.interleaved >= btree_index.interleaved)
        VERIFY(0, 1, "h5_get_file_size");
    if(btree_index.interleaved > (h5_stat_size_t)((float)list_index_small.interleaved * OVERHEAD_ALLOWED))
        VERIFY(btree_index.interleaved, list_index_small.interleaved, "h5_get_file_size");
    if(list_index_small.interleaved >= norm_sizes.interleaved)
        VERIFY(0, 1, "h5_get_file_size");
    /* The lists should still have grown the same amount.  The converted
     * B-tree shouldn't have grown more than the index that was originally
     * a B-tree (although it might have grown less if there was extra free
     * space within the file).
     */
    if((list_index_med.interleaved - list_index_med.dsets2) !=
            (list_index_big.interleaved - list_index_big.dsets2))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_big.interleaved - list_index_big.dsets2) >
            (btree_index.interleaved - btree_index.dsets2))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_small.interleaved - list_index_small.dsets2) >
            (btree_index.interleaved - btree_index.dsets2))
        VERIFY(0, 1, "h5_get_file_size");
    if((btree_index.interleaved - btree_index.dsets2) >=
            (norm_sizes.interleaved - norm_sizes.dsets2))
        VERIFY(0, 1, "h5_get_file_size");

    /* After many attributes have been written, both the small and medium lists
     * should have become B-trees and be about the same size as the index
     * that started as a B-tree.
     * Add in OVERHEAD_ALLOWED as a fudge factor here, since the allocation
     * of file space can be hard to predict.
     */
    if(btree_index.attrs1 > (h5_stat_size_t)((float)list_index_small.attrs1 * OVERHEAD_ALLOWED))
        VERIFY(btree_index.attrs1, list_index_small.attrs1, "h5_get_file_size");
    if(btree_index.attrs1 > (h5_stat_size_t)((float)list_index_med.attrs1 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    if(list_index_med.attrs1 > (h5_stat_size_t)((float)btree_index.attrs1 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    if(list_index_small.attrs1 > (h5_stat_size_t)((float)btree_index.attrs1 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    /* Neither of the converted lists should be too much bigger than
     * the index that was originally a B-tree.
     */
    if(list_index_small.attrs1 > (h5_stat_size_t)((float)btree_index.attrs1 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    if(list_index_med.attrs1 > (h5_stat_size_t)((float)btree_index.attrs1 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    /* The "normal" file should have had less overhead, so should gain less
     * size than any of the other indexes since none of these attribute
     * messages could be shared.  The large list should have gained
     * less overhead than the B-tree indexes.
     */
    if((norm_sizes.attrs1 - norm_sizes.interleaved) >=
            (list_index_big.attrs1 - list_index_big.interleaved))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_big.attrs1 - list_index_big.interleaved) >=
            (list_index_small.attrs1 - list_index_small.interleaved))
        VERIFY(0, 1, "h5_get_file_size");

    /* Give it some overhead (for checkin to move messages into continuation message) */
    if((list_index_small.attrs1 - list_index_small.interleaved) >
            (h5_stat_size_t)((float)(btree_index.attrs1 - btree_index.interleaved) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");


    /* Writing another copy of each attribute shouldn't change the ordering
     * of sizes.  The big list index is still too big to be smaller than a
     * normal file.  The B-tree indexes should all be about the same size.
     */
    if(btree_index.attrs2 > (h5_stat_size_t)((float)list_index_small.attrs2 * OVERHEAD_ALLOWED))
        VERIFY(btree_index.attrs2, list_index_small.attrs2, "h5_get_file_size");
    if(list_index_small.attrs2 > (h5_stat_size_t)((float)btree_index.attrs2 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    if(btree_index.attrs2 > (h5_stat_size_t)((float)list_index_med.attrs2 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    if(list_index_med.attrs2 > (h5_stat_size_t)((float)btree_index.attrs2 * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
    if(list_index_med.attrs2 >= norm_sizes.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
    if(list_index_big.attrs2 >= norm_sizes.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
    /* All of the B-tree indexes should have gained about the same amount
     * of space; at least as much as the list index and less than a normal
     * file.
     */
    if((list_index_small.attrs2 - list_index_small.attrs1) >
            (btree_index.attrs2 - btree_index.attrs1))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_med.attrs2 - list_index_med.attrs1) >
            (btree_index.attrs2 - btree_index.attrs1))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_big.attrs2 - list_index_big.attrs1) >
            (list_index_med.attrs2 - list_index_med.attrs1))
        VERIFY(0, 1, "h5_get_file_size");
    if((btree_index.attrs2 - btree_index.attrs1) >=
            (norm_sizes.attrs2 - norm_sizes.attrs1))
        VERIFY(0, 1, "h5_get_file_size");

    /* Done checking the first few files that use a single index. */


    /* Start comparing other kinds of files with these "standard"
     * one-index files
     */

    /* Check files with multiple indexes. */
    /* These files should be larger when first created than one-index
     * files.
     */
    if(mult_index_med.empty_size <= list_index_med.empty_size)
        VERIFY(0, 1, "h5_get_file_size");
    if(mult_index_btree.empty_size != mult_index_med.empty_size)
        VERIFY(0, 1, "h5_get_file_size");

    /* When the first dataset is written, they should grow quite a bit as
     * many different indexes must be created.
     */
    if((mult_index_med.first_dset - mult_index_med.empty_size) <=
            (list_index_med.first_dset - list_index_med.empty_size))
        VERIFY(0, 1, "h5_get_file_size");
    if((mult_index_btree.first_dset - mult_index_btree.empty_size) <=
            (btree_index.first_dset - btree_index.empty_size))
        VERIFY(0, 1, "h5_get_file_size");

    /* When the second dataset is written, they should grow less as
     * some extra heap space is allocated, but no more indices.
     */
    if((mult_index_med.second_dset - mult_index_med.first_dset) >
            (mult_index_med.first_dset - mult_index_med.empty_size))
        VERIFY(0, 1, "h5_get_file_size");
    if((list_index_med.second_dset - list_index_med.first_dset) >
            (list_index_med.first_dset - list_index_med.empty_size))
        VERIFY(0, 1, "h5_get_file_size");
    if((mult_index_btree.second_dset - mult_index_btree.first_dset) >
            (mult_index_btree.first_dset - mult_index_btree.empty_size))
        VERIFY(0, 1, "h5_get_file_size");
    if((btree_index.second_dset - btree_index.first_dset) >
            (btree_index.first_dset - btree_index.empty_size))
        VERIFY(0, 1, "h5_get_file_size");

    /* And the size delta for the second dataset is less in files with only
     *  one index.
     */
    if((mult_index_med.second_dset - mult_index_med.first_dset) <=
            (list_index_med.second_dset - list_index_med.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((mult_index_btree.first_dset - mult_index_btree.empty_size) <=
            (btree_index.first_dset - btree_index.empty_size))
        VERIFY(0, 1, "h5_get_file_size");

    /* Once that initial overhead is out of the way and the lists/btrees
     * have been created, files with more than one index should grow at
     * the same rate or slightly faster than files with just one index
     * and one heap.
     */
     if((mult_index_med.dsets1 - mult_index_med.second_dset) !=
            (list_index_med.dsets1 - list_index_med.second_dset))
        VERIFY((mult_index_med.dsets1 - mult_index_med.second_dset), (list_index_med.dsets1 - list_index_med.second_dset), "h5_get_file_size");
     if((mult_index_btree.dsets1 - mult_index_btree.second_dset) !=
            (btree_index.dsets1 - btree_index.second_dset))
        VERIFY((mult_index_btree.dsets1 - mult_index_btree.second_dset), (btree_index.dsets1 - btree_index.second_dset), "h5_get_file_size");

     if((mult_index_med.dsets2 - mult_index_med.dsets1) >
            (h5_stat_size_t)((float)(list_index_med.dsets2 - list_index_med.dsets1) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
     if((mult_index_btree.dsets2 - mult_index_btree.dsets1) >
            (h5_stat_size_t)((float)(btree_index.dsets2 - btree_index.dsets1) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");

     if((mult_index_med.interleaved - mult_index_med.dsets2) >
            (h5_stat_size_t)((float)(list_index_med.interleaved - list_index_med.dsets2) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
     if((mult_index_btree.interleaved - mult_index_btree.dsets2) >
            (h5_stat_size_t)((float)(btree_index.interleaved - btree_index.dsets2) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");

    /* When all the attributes are added, only the index holding attributes
     * will become a B-tree.  Skip the interleaved to attrs1 interval when
     * this happens because it's hard to predict exactly how much space this
     * will take.
     */
     if((mult_index_med.attrs2 - mult_index_med.attrs1) >
            (h5_stat_size_t)((float)(list_index_med.attrs2 - list_index_med.attrs1) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");
     if((mult_index_btree.attrs2 - mult_index_btree.attrs1) >
            (h5_stat_size_t)((float)(btree_index.attrs2 - btree_index.attrs1) * OVERHEAD_ALLOWED))
        VERIFY(0, 1, "h5_get_file_size");

    /* The final file size for both of the multiple index files should be
     * smaller than a normal file but bigger than any of the one-index files.
     */
     if(mult_index_med.attrs2 >= norm_sizes.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
     if(mult_index_btree.attrs2 >= norm_sizes.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
     if((h5_stat_size_t)((float)mult_index_med.attrs2 * OVERHEAD_ALLOWED) < btree_index.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
     if((h5_stat_size_t)((float)mult_index_btree.attrs2 * OVERHEAD_ALLOWED) < btree_index.attrs2)
        VERIFY(0, 1, "h5_get_file_size");


    /* Check files that don't share all messages. */
    /* These files have three indexes like the files above, so they should be
     * the same size when created.
     */
    if(share_some_med.empty_size != mult_index_med.empty_size)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_med.empty_size != share_some_btree.empty_size)
        VERIFY(0, 1, "h5_get_file_size");

    /* When the first dataset is created, they should be not quite as big
     * as equivalent files that share all messages (since shared messages
     * have a little bit of overhead).
     */
    if(share_some_med.first_dset >= mult_index_med.first_dset)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.first_dset >= mult_index_btree.first_dset)
        VERIFY(0, 1, "h5_get_file_size");

    /* The files that share some should have a growth rate in between
     * files that share all messages and normal files
     */
    if((share_some_med.interleaved - share_some_med.first_dset) <=
            (mult_index_med.interleaved - mult_index_med.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((share_some_med.interleaved - share_some_med.first_dset) >=
            (norm_sizes.interleaved - norm_sizes.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((share_some_btree.interleaved - share_some_btree.first_dset) <=
            (mult_index_btree.interleaved - mult_index_btree.first_dset))
        VERIFY(0, 1, "h5_get_file_size");
    if((share_some_btree.interleaved - share_some_btree.first_dset) >=
            (norm_sizes.interleaved - norm_sizes.first_dset))
        VERIFY(0, 1, "h5_get_file_size");


    /* Check the file that only stored gigantic messages in its second
     * index.  Since no messages were that big, it should be identical
     * to the file with an empty index.
     */
    if(share_some_btree.empty_size != share_some_toobig_index.empty_size)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.first_dset != share_some_toobig_index.first_dset)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.dsets1 != share_some_toobig_index.dsets1)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.dsets2 != share_some_toobig_index.dsets2)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.interleaved != share_some_toobig_index.interleaved)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.attrs1 != share_some_toobig_index.attrs1)
        VERIFY(0, 1, "h5_get_file_size");
    if(share_some_btree.attrs2 != share_some_toobig_index.attrs2)
        VERIFY(0, 1, "h5_get_file_size");


    /* Check the file that shares even very tiny messages.  Once messages
     * are written to it, it should gain a little space from sharing the
     * messages and lose a little space to overhead so that it's just slightly
     * smaller than a file that doesn't share tiny messages.
     * If the overhead increases or the size of messages decreases, these
     * numbers may be off.
     */
    if(share_tiny_index.empty_size != type_space_index.empty_size)
        VERIFY(share_tiny_index.empty_size, type_space_index.empty_size, "h5_get_file_size");

    if(share_tiny_index.first_dset >= (h5_stat_size_t)((float)type_space_index.first_dset * OVERHEAD_ALLOWED))
        VERIFY(share_tiny_index.first_dset, type_space_index.first_dset, "h5_get_file_size");
    if(share_tiny_index.first_dset < type_space_index.first_dset)
        VERIFY(0, 1, "h5_get_file_size");

    if(share_tiny_index.second_dset >= type_space_index.second_dset)
        VERIFY(share_tiny_index.second_dset, type_space_index.second_dset, "h5_get_file_size");
    if((h5_stat_size_t)((float)share_tiny_index.second_dset * OVERHEAD_ALLOWED) < type_space_index.second_dset)
        VERIFY(0, 1, "h5_get_file_size");

    if(share_tiny_index.dsets1 >= type_space_index.dsets1)
        VERIFY(0, 1, "h5_get_file_size");
    if((h5_stat_size_t)((float)share_tiny_index.dsets1 * OVERHEAD_ALLOWED) < type_space_index.dsets1)
        VERIFY(0, 1, "h5_get_file_size");

    if(share_tiny_index.dsets2 >= type_space_index.dsets2)
        VERIFY(0, 1, "h5_get_file_size");
    if((h5_stat_size_t)((float)share_tiny_index.dsets2 * OVERHEAD_ALLOWED) < type_space_index.dsets2)
        VERIFY(0, 1, "h5_get_file_size");

    if(share_tiny_index.interleaved >= type_space_index.interleaved)
        VERIFY(0, 1, "h5_get_file_size");
    if((h5_stat_size_t)((float)share_tiny_index.interleaved * OVERHEAD_ALLOWED) < type_space_index.interleaved)
        VERIFY(0, 1, "h5_get_file_size");

    if(share_tiny_index.attrs1 >= type_space_index.attrs1)
        VERIFY(0, 1, "h5_get_file_size");
    if((h5_stat_size_t)((float)share_tiny_index.attrs1 * OVERHEAD_ALLOWED) < type_space_index.attrs1)
        VERIFY(0, 1, "h5_get_file_size");

    if(share_tiny_index.attrs2 >= type_space_index.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
    if((h5_stat_size_t)((float)share_tiny_index.attrs2 * OVERHEAD_ALLOWED) < type_space_index.attrs2)
        VERIFY(0, 1, "h5_get_file_size");
} /* end test_sohm_size2() */


/*-------------------------------------------------------------------------
 * Function:    delete_helper_write
 *
 * Purpose:     Creates a dataset and attribute in file FILE_ID using value X
 *              in the DSPACE_ID and DCPL_ID arrays.
 *
 * Programmer:  James Laird
 *              Tuesday, December 19, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void delete_helper_write(hid_t file_id, hid_t *dspace_id, hid_t *dcpl_id, int x)
{
    hid_t dset_id = -1;
    hid_t attr_id = -1;
    char wdata;
    herr_t ret;

    /* Create dataset */
    dset_id = H5Dcreate2(file_id, DSETNAME[x], H5T_NATIVE_CHAR, dspace_id[x], H5P_DEFAULT, dcpl_id[x], H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dcreate2");

    /* Write data to dataset */
    wdata = (char)(x + 'a');
    ret = H5Dwrite(dset_id, H5T_NATIVE_CHAR, dspace_id[x], dspace_id[x], H5P_DEFAULT, &wdata);
    CHECK_I(ret, "H5Dwrite");

    /* Create an attribute on the dataset. */
    attr_id = H5Acreate2(dset_id, "attr_name", H5T_NATIVE_CHAR, dspace_id[x], H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(attr_id, "H5Acreate2");

    /* Write to attribute */
    ret = H5Awrite(attr_id, H5T_NATIVE_CHAR, &wdata);
    CHECK_I(ret, "H5Awrite");

    ret = H5Aclose(attr_id);
    CHECK_I(ret, "H5Aclose");
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");
}


/*-------------------------------------------------------------------------
 * Function:    delete_helper_read
 *
 * Purpose:     Checks the value of the dataset and attribute created by
 *              delete_helper_write.
 *
 * Programmer:  James Laird
 *              Tuesday, December 19, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void delete_helper_read(hid_t file_id, hid_t *dspace_id, int x)
{
    hid_t dset_id = -1;
    hid_t attr_id = -1;
    char rdata;
    herr_t ret;

    /* Open dataset */
    dset_id = H5Dopen2(file_id, DSETNAME[x], H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dopen2");

    /* Read */
    rdata = '\0';
    ret = H5Dread(dset_id, H5T_NATIVE_CHAR, dspace_id[x], dspace_id[x], H5P_DEFAULT, &rdata);
    CHECK_I(ret, "H5Dread");
    VERIFY(rdata, (x + 'a'), "H5Dread");

    /* Open attribute */
    attr_id = H5Aopen(dset_id, "attr_name", H5P_DEFAULT);
    CHECK_I(attr_id, "H5Aopen");

    /* Read */
    rdata = '\0';
    ret = H5Aread(attr_id, H5T_NATIVE_CHAR, &rdata);
    CHECK_I(ret, "H5Dread");
    VERIFY(rdata, (x + 'a'), "H5Dread");

    /* Cleanup */
    ret = H5Aclose(attr_id);
    CHECK_I(ret, "H5Aclose");
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");
}


/*-------------------------------------------------------------------------
 * Function:    delete_helper
 *
 * Purpose:     Creates some shared messages, deletes them, and creates some
 *              more messages.  The second batch of messages should use the
 *              space freed by the first batch, so should be about the same
 *              size as a file that never had the first batch of messages
 *              created.
 *
 *              FCPL_ID is the file creation property list to use.
 *              DSPACE_ID and DCPL_ID are arrays of different dataspaces
 *              and property lists with filter pipelines used to create the
 *              messages.
 *
 * Programmer:  James Laird
 *              Tuesday, December 19, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void delete_helper(hid_t fcpl_id, hid_t *dspace_id, hid_t *dcpl_id)
{
    hid_t file_id=-1;
    int x;
    h5_stat_size_t norm_filesize;
    h5_stat_size_t deleted_filesize;
    herr_t ret;

    /* Get the size of a "normal" file with no deleted messages */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    /* Create batch of messages in the file starting at message 2 */
    for(x=HALF_DELETE_NUM_MESGS; x<DELETE_NUM_MESGS; ++x) {
        delete_helper_write(file_id, dspace_id, dcpl_id, x);
    }

    /* Check that messages can be read */
    for(x=HALF_DELETE_NUM_MESGS; x<DELETE_NUM_MESGS; ++x) {
        delete_helper_read(file_id, dspace_id, x);
    }

    /* Close file and get filesize */
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    norm_filesize = h5_get_file_size(FILENAME, H5P_DEFAULT);

    /* Create a new file with messages 0 to (HALF_DELETE_NUM_MESGS - 1) */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    for(x=0; x<HALF_DELETE_NUM_MESGS; ++x) {
        delete_helper_write(file_id, dspace_id, dcpl_id, x);
    }

    /* Verify each dataset, then delete it (which should delete
     * its shared messages as well
     */
    for(x=0; x<HALF_DELETE_NUM_MESGS; ++x) {
        delete_helper_read(file_id, dspace_id, x);
        ret = H5Ldelete(file_id, DSETNAME[x], H5P_DEFAULT);
        CHECK_I(ret, "H5Ldelete");
    }

    /* The file is now empty.  Write and verify the second batch of messages
     * again.
     */
    for(x=HALF_DELETE_NUM_MESGS; x<DELETE_NUM_MESGS; ++x) {
        delete_helper_write(file_id, dspace_id, dcpl_id, x);
    }
    for(x=HALF_DELETE_NUM_MESGS; x<DELETE_NUM_MESGS; ++x) {
        delete_helper_read(file_id, dspace_id, x);
    }

    /* Close file and get filesize */
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    deleted_filesize = h5_get_file_size(FILENAME, H5P_DEFAULT);

    /* The two filesizes should be almost the same */
    if(norm_filesize > (h5_stat_size_t)((float)deleted_filesize * OVERHEAD_ALLOWED))
        VERIFY(norm_filesize, deleted_filesize, "h5_get_file_size");
    if(deleted_filesize > (h5_stat_size_t)((float)norm_filesize * OVERHEAD_ALLOWED))
        VERIFY(deleted_filesize, norm_filesize, "h5_get_file_size");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_delete
 *
 * Purpose:     Tests shared object header message deletion.
 *
 *              Creates lots of shared messages, then ensures that they
 *              can be deleted without corrupting the remaining messages.
 *              Also checks that indexes convert from B-trees back into
 *              lists.
 *
 * Programmer:  James Laird
 *              Tuesday, December 19, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
test_sohm_delete(void)
{
    hid_t fcpl_id;
    /* We'll use dataspaces and filter pipelines for this test.
     *  Create a number of distinct messages of each type.
     */
    hid_t dspace_id[DELETE_NUM_MESGS] = {0};
    hid_t dcpl_id[DELETE_NUM_MESGS] = {0};
    unsigned u;
    int x;
    hsize_t dims[] = DELETE_DIMS;
    herr_t ret;

    /* Create a number of different dataspaces.
     * For simplicity, each dataspace has only one element.
     */
   for(u = 0; u < DELETE_NUM_MESGS; ++u) {
        dspace_id[u] = H5Screate_simple((int)(u + 1), dims, dims);
        CHECK_I(dspace_id[u], "H5Screate_simple");
    } /* end for */

    /* Create a number of different filter pipelines. */
    dcpl_id[0] = H5Pcreate(H5P_DATASET_CREATE);
    CHECK_I(dcpl_id[0], "H5Pcreate");

    ret = H5Pset_chunk(dcpl_id[0], 1, dims);
    CHECK_I(ret, "H5Pset_chunk");
    ret = H5Pset_shuffle(dcpl_id[0]);
    CHECK_I(ret, "H5Pset_shuffle");

    for(u = 1; u < DELETE_NUM_MESGS; u += 2) {
        dcpl_id[u] = H5Pcopy(dcpl_id[u - 1]);
        CHECK_I(dcpl_id[u], "H5Pcopy");
        ret = H5Pset_chunk(dcpl_id[u], (int)(u + 1), dims);
        CHECK_I(ret, "H5Pset_chunk");
        ret = H5Pset_deflate(dcpl_id[u], 1);
        CHECK_I(ret, "H5Pset_deflate");

        dcpl_id[u + 1] = H5Pcopy(dcpl_id[u]);
        CHECK_I(dcpl_id[u + 1], "H5Pcopy");
        ret = H5Pset_chunk(dcpl_id[u + 1], (int)(u + 2), dims);
        CHECK_I(ret, "H5Pset_chunk");
        ret = H5Pset_shuffle(dcpl_id[u + 1]);
        CHECK_I(ret, "H5Pset_shuffle");
    } /* end for */

    /* Create an fcpl where all messages are shared in the same index */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, 16);
    CHECK_I(ret, "H5Pset_shared_mesg_index");


    /* Use big list indexes */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 4 * DELETE_NUM_MESGS, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Test that messages can be created and deleted properly */
    delete_helper(fcpl_id, dspace_id, dcpl_id);

    /* Use B-tree indexes */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    delete_helper(fcpl_id, dspace_id, dcpl_id);


    /* Use small list indexes that will convert from lists to B-trees and back */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, HALF_DELETE_NUM_MESGS, HALF_DELETE_NUM_MESGS - 1);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    delete_helper(fcpl_id, dspace_id, dcpl_id);


    /* Use two indexes */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG | H5O_SHMESG_ATTR_FLAG, 16);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_DTYPE_FLAG, 16);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Use big list indexes */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 5000, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");


    /* Use B-tree indexes */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    delete_helper(fcpl_id, dspace_id, dcpl_id);


    /* Set phase change values so that one index converts to a B-tree and one doesn't */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, HALF_DELETE_NUM_MESGS + 1, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    delete_helper(fcpl_id, dspace_id, dcpl_id);


    /* Test with varying message sizes (ideally, so some messages are too
     * small to be written but some are big enough that they are still written
     */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    for(u = DELETE_MIN_MESG_SIZE; u <= DELETE_MAX_MESG_SIZE; u += 10) {
        ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, u);
        CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
        delete_helper(fcpl_id, dspace_id, dcpl_id);
    } /* end for */

    /* Cleanup */
    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");

    for(x = DELETE_NUM_MESGS - 1; x >= 0; --x) {
        ret = H5Sclose(dspace_id[x]);
        CHECK_I(ret, "H5Sclose");
        ret = H5Pclose(dcpl_id[x]);
        CHECK_I(ret, "H5Pclose");
    } /* end for */
} /* end test_sohm_delete() */


/*-------------------------------------------------------------------------
 * Function:    test_sohm_delete_revert_helper
 *
 * Purpose:     Tests that shared object header message deletion returns
 *              the file to its previous state using the supplied FCPL.
 *
 *              Creates shared messages and then deletes them.  Ensures
 *              that the file has not grown in size.
 *
 * Programmer:  James Laird
 *              Wednesday, January 3, 2007
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
test_sohm_delete_revert_helper(hid_t fcpl_id)
{
    hid_t file_id;
    hid_t dspace_id;
    hid_t dset_id;
    hsize_t dims[1] = {1};
    h5_stat_size_t initial_filesize, deleted_filesize;
    int old_nerrs;              /* Number of errors when entering this routine */
    herr_t ret;

    /* Retrieve the current # of reported errors */
    old_nerrs = GetTestNumErrs();

    /* Create a dataspace for later */
    dspace_id = H5Screate_simple(1, dims, dims);
    CHECK_I(dspace_id, "H5Screate_simple");

    /* Create a file using the FCPL supplied*/
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    /* Close the file and get its size */
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    initial_filesize = h5_get_file_size(FILENAME, H5P_DEFAULT);


    /* Re-create the file and create a dataset in it */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    dset_id = H5Dcreate2(file_id, "dset", H5T_NATIVE_SHORT, dspace_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dcreate2");

    /* Close the dataset and delete it */
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Ldelete(file_id, "dset", H5P_DEFAULT);
    CHECK_I(ret, "H5Ldelete");

    /* Close the file and get its size */
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    deleted_filesize = h5_get_file_size(FILENAME, H5P_DEFAULT);

    VERIFY(deleted_filesize, initial_filesize, "h5_get_file_size");


    /* Repeat, creating two datasets in the file */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    /* Create and close the first dataset */
    dset_id = H5Dcreate2(file_id, "dset", H5T_NATIVE_SHORT, dspace_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dcreate2");
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");

    /* Create and close the second.  These messages should be shared */
    dset_id = H5Dcreate2(file_id, "dset2", H5T_NATIVE_SHORT, dspace_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dcreate2");
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");

    /* Delete both datasets */
    ret = H5Ldelete(file_id, "dset", H5P_DEFAULT);
    CHECK_I(ret, "H5Ldelete");
    ret = H5Ldelete(file_id, "dset2", H5P_DEFAULT);
    CHECK_I(ret, "H5Ldelete");

    /* Close the file and get its size */
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");
    deleted_filesize = h5_get_file_size(FILENAME, H5P_DEFAULT);

    VERIFY(deleted_filesize, initial_filesize, "h5_get_file_size");


    /* Cleanup */
    ret = H5Sclose(dspace_id);
    CHECK_I(ret, "H5Sclose");

    /* Retrieve current # of errors */
    if(old_nerrs == GetTestNumErrs())
        return(0);
    else
        return(-1);
} /* test_sohm_delete_revert_helper() */


/*-------------------------------------------------------------------------
 * Function:    test_sohm_delete_revert
 *
 * Purpose:     Calls test_sohm_delete_revert_helper with different FCPLs.
 *
 * Programmer:  James Laird
 *              Wednesday, January 3, 2007
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
test_sohm_delete_revert(void)
{
    hid_t fcpl_id;
    herr_t ret;

    /* Create an fcpl with messages in two indexes */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_DTYPE_FLAG, 10);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_index(fcpl_id, 1, H5O_SHMESG_SDSPACE_FLAG, 10);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Call the helper function to test this FCPL. */
    ret = test_sohm_delete_revert_helper(fcpl_id);
    CHECK_I(ret, "test_sohm_delete_revert_helper");

    /* Try using B-trees */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    ret = test_sohm_delete_revert_helper(fcpl_id);
    CHECK_I(ret, "test_sohm_delete_revert_helper");


    /* Try sharing all messages */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, 10);
    CHECK_I(ret, "H5Pset_shared_mesg_index");
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 10, 5);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    ret = test_sohm_delete_revert_helper(fcpl_id);
    CHECK_I(ret, "test_sohm_delete_revert_helper");

    /* Try using B-trees */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    ret = test_sohm_delete_revert_helper(fcpl_id);
    CHECK_I(ret, "test_sohm_delete_revert_helper");

    /* There should be at least two messages in the test (datatype and
     * dataspace).  Use an index that will transition from a list to
     * a B-tree and back.
     */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 1, 2);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    ret = test_sohm_delete_revert_helper(fcpl_id);
    CHECK_I(ret, "test_sohm_delete_revert_helper");


    /* Try with shared messages enabled, but when messages are too big
     * to be shared.
     */
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, 35);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");
    ret = test_sohm_delete_revert_helper(fcpl_id);
    CHECK_I(ret, "test_sohm_delete_revert_helper");

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_extlink_helper
 *
 * Purpose:     Tests that a dataset created through an external link can
 *              be opened (that shared messages were created or not and
 *              were shared in the right file).
 *
 * Programmer:  James Laird
 *              Friday, December 22, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void test_sohm_extlink_helper(hid_t src_fcpl_id, hid_t dst_fcpl_id)
{
    hid_t src_file_id = -1;
    hid_t dst_file_id = -1;
    hid_t space_id = -1;
    hid_t dset_id = -1;
    hsize_t dims[] = {1, 1};
    herr_t ret;

    /* Create files */
    src_file_id = H5Fcreate(FILENAME_SRC, H5F_ACC_TRUNC, src_fcpl_id, H5P_DEFAULT);
    CHECK_I(src_file_id, "H5Fcreate");
    dst_file_id = H5Fcreate(FILENAME_DST, H5F_ACC_TRUNC, dst_fcpl_id, H5P_DEFAULT);
    CHECK_I(dst_file_id, "H5Fcreate");

    /* Create an external link from the source file to the destination file */
    ret = H5Lcreate_external(FILENAME_DST, "/", src_file_id, "ext_link", H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(ret, "H5Lcreate_external");

    /* Create a dataset through the external link */
    space_id = H5Screate_simple(2, dims, dims);
    CHECK_I(space_id, "H5Screate_simple");
    dset_id = H5Dcreate2(src_file_id, "ext_link/dataset", H5T_NATIVE_FLOAT, space_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dcreate2");

    /* Close the dataset and both files to make sure everything gets flushed
     * out of memory
     */
    ret = H5Sclose(space_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Fclose(src_file_id);
    CHECK_I(ret, "H5Fclose");
    ret = H5Fclose(dst_file_id);
    CHECK_I(ret, "H5Fclose");

    /* Ensure that the dataset can be opened.  If the messages were written in
     * the wrong file, it'll be impossible to read the dataset's object
     * header.
     */
    dst_file_id = H5Fopen(FILENAME_DST, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK_I(dst_file_id, "H5Fopen");
    dset_id = H5Dopen2(dst_file_id, "dataset", H5P_DEFAULT);
    CHECK_I(dset_id, "H5Dopen2");

    /* Cleanup */
    ret = H5Dclose(dset_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Fclose(dst_file_id);
    CHECK_I(ret, "H5Fclose");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_extlink
 *
 * Purpose:     Test creating SOHMs through external links (to make sure that
 *              they're created in the correct file).
 *
 * Programmer:  James Laird
 *              Friday, December 22, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
test_sohm_extlink(void)
{
    hid_t fcpl_id = -1;
    herr_t ret;

    /* Create fcpl */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, 16);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    /* Test using external links when the source or destination file uses
     * shared messages
     */
    test_sohm_extlink_helper(fcpl_id, H5P_DEFAULT);
    test_sohm_extlink_helper(H5P_DEFAULT, fcpl_id);
    test_sohm_extlink_helper(fcpl_id, fcpl_id);

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_extend_dset_helper
 *
 * Purpose:     Tests extending a dataset's dataspace when sharing is
 *              enabled.
 *
 *              If close_reopen is TRUE, closes and reopens the file to
 *              ensure that data is correctly written to disk.
 *
 * Programmer:  James Laird
 *              Wednesday, January 10, 2007
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static int
test_sohm_extend_dset_helper(hid_t fcpl_id, hbool_t close_reopen)
{
    hid_t file_id = -1;
    hid_t orig_space_id = -1;
    hid_t space1_id, space2_id, space3_id;
    hid_t dcpl_id = -1;
    hid_t dset1_id, dset2_id, dset3_id;
    hsize_t dims1[] = {1, 2};
    hsize_t max_dims[] = {H5S_UNLIMITED, 2};
    hsize_t dims2[] = {5, 2};
    hsize_t out_dims[2];
    hsize_t out_maxdims[2];
    int x;
    int old_nerrs;              /* Number of errors when entering this routine */
    herr_t ret;

    /* Retrieve the current # of reported errors */
    old_nerrs = GetTestNumErrs();

    /* Create file */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");

    /* Create property list with chunking */
    dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
    CHECK_I(dcpl_id, "H5Pcreate");
    ret = H5Pset_chunk(dcpl_id, 2, dims1);
    CHECK_I(ret, "H5Pset_chunk");

    /* Create a dataspace and a dataset*/
    orig_space_id = H5Screate_simple(EXTEND_NDIMS, dims1, max_dims);
    CHECK_I(orig_space_id, "H5Screate_simple");
    dset1_id = H5Dcreate2(file_id, "dataset", H5T_NATIVE_LONG, orig_space_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
    CHECK_I(dset1_id, "H5Dcreate2");

    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
    }

    /* Create another dataset starting with the same dataspace */
    dset2_id = H5Dcreate2(file_id, "dataset2", H5T_NATIVE_LONG, orig_space_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
    CHECK_I(dset2_id, "H5Dcreate2");

    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
    }

    /* Create a third dataset with the same dataspace */
    dset3_id = H5Dcreate2(file_id, "dataset3", H5T_NATIVE_LONG, orig_space_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
    CHECK_I(dset3_id, "H5Dcreate2");

    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset3_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
        dset3_id = H5Dopen2(file_id, "dataset3", H5P_DEFAULT);
        CHECK_I(dset3_id, "H5Dopen2");
    }

    /* Extend the first dataset */
    ret = H5Dset_extent(dset1_id, dims2);
    CHECK_I(ret, "H5Dset_extent");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset3_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
        dset3_id = H5Dopen2(file_id, "dataset3", H5P_DEFAULT);
        CHECK_I(dset3_id, "H5Dopen2");
    }

    /* Get the dataspaces from the datasets */
    space1_id = H5Dget_space(dset1_id);
    CHECK_I(space1_id, "H5Dget_space");
    space2_id = H5Dget_space(dset2_id);
    CHECK_I(space2_id, "H5Dget_space");
    space3_id = H5Dget_space(dset3_id);
    CHECK_I(space3_id, "H5Dget_space");

    /* Verify the dataspaces */
    ret = H5Sget_simple_extent_dims(space1_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space2_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims1[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space3_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims1[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    /* Close all three dataspaces */
    ret = H5Sclose(space1_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space2_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space3_id);
    CHECK_I(ret, "H5Sclose");

    /* Extend the second dataset */
    ret = H5Dset_extent(dset2_id, dims2);
    CHECK_I(ret, "H5Dset_extent");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset3_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
        dset3_id = H5Dopen2(file_id, "dataset3", H5P_DEFAULT);
        CHECK_I(dset3_id, "H5Dopen2");
    }

    /* Get the dataspaces from the datasets */
    space1_id = H5Dget_space(dset1_id);
    CHECK_I(space1_id, "H5Dget_space");
    space2_id = H5Dget_space(dset2_id);
    CHECK_I(space2_id, "H5Dget_space");
    space3_id = H5Dget_space(dset3_id);
    CHECK_I(space3_id, "H5Dget_space");

    /* Verify the dataspaces */
    ret = H5Sget_simple_extent_dims(space1_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space2_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space3_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims1[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    /* Close all three dataspaces */
    ret = H5Sclose(space1_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space2_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space3_id);
    CHECK_I(ret, "H5Sclose");

    /* Extend the third dataset */
    ret = H5Dset_extent(dset3_id, dims2);
    CHECK_I(ret, "H5Dset_extent");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset3_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
        dset3_id = H5Dopen2(file_id, "dataset3", H5P_DEFAULT);
        CHECK_I(dset3_id, "H5Dopen2");
    }

    /* Get the dataspaces from the datasets */
    space1_id = H5Dget_space(dset1_id);
    CHECK_I(space1_id, "H5Dget_space");
    space2_id = H5Dget_space(dset2_id);
    CHECK_I(space2_id, "H5Dget_space");
    space3_id = H5Dget_space(dset3_id);
    CHECK_I(space3_id, "H5Dget_space");

    /* Verify the dataspaces */
    ret = H5Sget_simple_extent_dims(space1_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space2_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space3_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    /* Close all three dataspaces */
    ret = H5Sclose(space1_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space2_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space3_id);
    CHECK_I(ret, "H5Sclose");

    /* Close the datasets and file */
    ret = H5Dclose(dset1_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Dclose(dset2_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Dclose(dset3_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");



    /* Change the order in which datasets are extended to ensure that there
     * are no problems if a dataspace goes from being shared to not being
     * shared or vice versa.
     */
    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, fcpl_id, H5P_DEFAULT);
    CHECK_I(file_id, "H5Fcreate");
    dset1_id = H5Dcreate2(file_id, "dataset", H5T_NATIVE_LONG, orig_space_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
    CHECK_I(dset1_id, "H5Dcreate2");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
    }

    /* Extend the first dataset */
    ret = H5Dset_extent(dset1_id, dims2);
    CHECK_I(ret, "H5Dset_extent");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
    }

    /* Create the second dataset.  Its dataspace will be unshared and then
     * become shared when extended.
     */
    dset2_id = H5Dcreate2(file_id, "dataset2", H5T_NATIVE_LONG, orig_space_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
    CHECK_I(dset2_id, "H5Dcreate2");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
    }

    /* Extend the second dataset */
    ret = H5Dset_extent(dset2_id, dims2);
    CHECK_I(ret, "H5Dset_extent");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
    }

    /* Create the third dataset.  Its dataspace will be unshared and then
     * become shared when extended.
     */
    dset3_id = H5Dcreate2(file_id, "dataset3", H5T_NATIVE_LONG, orig_space_id, H5P_DEFAULT, dcpl_id, H5P_DEFAULT);
    CHECK_I(dset3_id, "H5Dcreate2");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset3_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
        dset3_id = H5Dopen2(file_id, "dataset3", H5P_DEFAULT);
        CHECK_I(dset3_id, "H5Dopen2");
    }

    /* Extend the third dataset */
    ret = H5Dset_extent(dset3_id, dims2);
    CHECK_I(ret, "H5Dset_extent");
    if(close_reopen) {
        /* If requested, close all open IDs and reopen them */
        ret = H5Dclose(dset1_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset2_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Dclose(dset3_id);
        CHECK_I(ret, "H5Dclose");
        ret = H5Fclose(file_id);
        CHECK_I(ret, "H5Fclose");

        file_id = H5Fopen(FILENAME, H5F_ACC_RDWR, H5P_DEFAULT);
        CHECK_I(file_id, "H5Fopen");
        dset1_id = H5Dopen2(file_id, "dataset", H5P_DEFAULT);
        CHECK_I(dset1_id, "H5Dopen2");
        dset2_id = H5Dopen2(file_id, "dataset2", H5P_DEFAULT);
        CHECK_I(dset2_id, "H5Dopen2");
        dset3_id = H5Dopen2(file_id, "dataset3", H5P_DEFAULT);
        CHECK_I(dset3_id, "H5Dopen2");
    }

    /* Get the dataspaces from the datasets */
    space1_id = H5Dget_space(dset1_id);
    CHECK_I(space1_id, "H5Dget_space");
    space2_id = H5Dget_space(dset2_id);
    CHECK_I(space2_id, "H5Dget_space");
    space3_id = H5Dget_space(dset3_id);
    CHECK_I(space3_id, "H5Dget_space");

    /* Verify the dataspaces */
    ret = H5Sget_simple_extent_dims(space1_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space2_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    ret = H5Sget_simple_extent_dims(space3_id, out_dims, out_maxdims);
    CHECK_I(ret, "H5Sget_simple_extent_dims");
    for(x=0; x<EXTEND_NDIMS; ++x) {
        VERIFY(out_dims[x], dims2[x], "H5Sget_simple_extent_dims");
        VERIFY(out_maxdims[x], max_dims[x], "H5Sget_simple_extent_dims");
    }

    /* Close all three dataspaces */
    ret = H5Sclose(space1_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space2_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Sclose(space3_id);
    CHECK_I(ret, "H5Sclose");

    /* Close the datasets and file */
    ret = H5Dclose(dset1_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Dclose(dset2_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Dclose(dset3_id);
    CHECK_I(ret, "H5Dclose");
    ret = H5Fclose(file_id);
    CHECK_I(ret, "H5Fclose");

    /* Cleanup */
    ret = H5Sclose(orig_space_id);
    CHECK_I(ret, "H5Sclose");
    ret = H5Pclose(dcpl_id);
    CHECK_I(ret, "H5Pclose");

    /* Retrieve current # of errors */
    if(old_nerrs == GetTestNumErrs())
        return(0);
    else
        return(-1);
} /* end test_sohm_extend_dset_helper() */


/*-------------------------------------------------------------------------
 * Function:    test_sohm_extend_dset
 *
 * Purpose:     Test extended shared dataspaces.  An extended dataset's
 *              dataspace will change, possibly confusing the shared message
 *              code.
 *
 * Programmer:  James Laird
 *              Wednesday, January 10, 2007
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
test_sohm_extend_dset(void)
{
    hid_t fcpl_id = -1;
    herr_t ret;

    /* Create fcpl */
    fcpl_id = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl_id, "H5Pcreate");

    /* Test extending datasets with different FCPLs */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    /* No shared messages */
    ret = test_sohm_extend_dset_helper(fcpl_id, FALSE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");
    ret = test_sohm_extend_dset_helper(fcpl_id, TRUE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");


    /* Only dataspaces */
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_SDSPACE_FLAG, 16);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    ret = test_sohm_extend_dset_helper(fcpl_id, FALSE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");
    ret = test_sohm_extend_dset_helper(fcpl_id, TRUE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");

    /* All messages */
    ret = H5Pset_shared_mesg_nindexes(fcpl_id, 1);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");
    ret = H5Pset_shared_mesg_index(fcpl_id, 0, H5O_SHMESG_ALL_FLAG, 16);
    CHECK_I(ret, "H5Pset_shared_mesg_index");

    ret = test_sohm_extend_dset_helper(fcpl_id, FALSE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");
    ret = test_sohm_extend_dset_helper(fcpl_id, TRUE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");


    /* All messages in lists */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 100, 50);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    ret = test_sohm_extend_dset_helper(fcpl_id, FALSE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");
    ret = test_sohm_extend_dset_helper(fcpl_id, TRUE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");


    /* All messages in lists converted to B-trees */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 1, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    ret = test_sohm_extend_dset_helper(fcpl_id, FALSE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");
    ret = test_sohm_extend_dset_helper(fcpl_id, TRUE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");


    /* All messages in B-trees */
    ret = H5Pset_shared_mesg_phase_change(fcpl_id, 0, 0);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    ret = test_sohm_extend_dset_helper(fcpl_id, FALSE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");
    ret = test_sohm_extend_dset_helper(fcpl_id, TRUE);
    CHECK_I(ret, "test_sohm_extend_dset_helper");

    ret = H5Pclose(fcpl_id);
    CHECK_I(ret, "H5Pclose");
}


/*-------------------------------------------------------------------------
 * Function:    test_sohm_external_dtype
 *
 * Purpose:     When a datatype is a SOHM type in one file, test that the
 *              second file using the same datatype actually save it in
 *              the file, too.
 *
 * Programmer:  Raymond Lu
 *              13 October, 2008
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
static void
test_sohm_external_dtype(void)
{
    typedef struct s1_t {
        int a;
        int b;
    } s1_t;
    s1_t  *s_ptr, *orig;
    hid_t fcpl, file1, file2;
    hid_t dataset1, dataset2;
    hid_t s1_tid, dset1_tid, dset2_tid, space;
    hsize_t dims[2] = {NX, NY};
    H5T_class_t dtype_class;
    size_t dmsg_count;
    unsigned x, i;
    herr_t ret;

    fcpl = H5Pcreate(H5P_FILE_CREATE);
    CHECK_I(fcpl, "H5Pcreate");

    /* Set up index values for sohm */
    ret = H5Pset_shared_mesg_nindexes(fcpl, TEST_NUM_INDEXES);
    CHECK_I(ret, "H5Pset_shared_mesg_nindexes");

    for(x=0; x<TEST_NUM_INDEXES; ++x)
    {
        ret = H5Pset_shared_mesg_index(fcpl, x, test_type_flags[x], test_minsizes[x]);
        CHECK_I(ret, "H5Pset_shared_mesg_index");
    }

    ret = H5Pset_shared_mesg_phase_change(fcpl, TEST_L2B, TEST_B2L);
    CHECK_I(ret, "H5Pset_shared_mesg_phase_change");

    /* Create the data space */
    space = H5Screate_simple(2, dims, NULL);
    CHECK_I(space, "H5Screate_simple");

    /* Create a data type for s1_t */
    s1_tid = H5Tcreate(H5T_COMPOUND, sizeof(s1_t));
    CHECK_I(s1_tid, "H5Tcreate");

    ret = H5Tinsert(s1_tid, "a", HOFFSET(s1_t,a), H5T_NATIVE_INT);
    CHECK_I(ret, "H5Tinsert");

    ret = H5Tinsert (s1_tid, "b", HOFFSET(s1_t,b), H5T_NATIVE_INT);
    CHECK_I(ret, "H5Tinsert");

    /* Create the first file for this test */
    file1 = H5Fcreate(FILENAME_SRC, H5F_ACC_TRUNC, fcpl, H5P_DEFAULT);
    CHECK_I(file1, "H5Fcreate");

    /* Check on datatype storage status. It should be zero now. */
    ret = H5F_get_sohm_mesg_count_test(file1, H5O_DTYPE_ID, &dmsg_count);
    CHECK(ret, FAIL, "H5F_get_sohm_mesg_count_test");
    VERIFY(dmsg_count, 0, "H5F_get_sohm_mesg_count_test");

    /* Create data set */
    dataset1 = H5Dcreate2(file1, "dataset_1", s1_tid, space, H5P_DEFAULT, H5P_DEFAULT,
        H5P_DEFAULT);
    CHECK_I(dataset1, "H5Dcreate2");

    /* Check on datatype storage status.  It should be 1 now. */
    ret = H5F_get_sohm_mesg_count_test(file1, H5O_DTYPE_ID, &dmsg_count);
    CHECK(ret, FAIL, "H5F_get_sohm_mesg_count_test");
    VERIFY(dmsg_count, 1, "H5F_get_sohm_mesg_count_test");

    /* Retieve the dataset's datatype */
    dset1_tid = H5Dget_type(dataset1);
    CHECK_I(dset1_tid, "H5Dget_type");

    /* Allocate space and initialize data */
    orig = (s1_t*)HDmalloc(NX * NY * sizeof(s1_t));
    for(i=0; i<NX*NY; i++) {
        s_ptr = (s1_t*)orig + i;
        s_ptr->a = (int)(i * 3 + 1);
        s_ptr->b = (int)(i * 3 + 2);
    }

    /* Write the data to the dataset1 */
    ret = H5Dwrite(dataset1, s1_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, orig);
    CHECK_I(ret, "H5Dwrite");

    ret = H5Dclose(dataset1);
    CHECK_I(ret, "H5Dclose");

    /* Create the second file for this test */
    file2 = H5Fcreate(FILENAME_DST, H5F_ACC_TRUNC, fcpl, H5P_DEFAULT);
    CHECK_I(file2, "H5Fcreate");

    /* Check on datatype storage status. It should be zero now. */
    ret = H5F_get_sohm_mesg_count_test(file2, H5O_DTYPE_ID, &dmsg_count);
    CHECK(ret, FAIL, "H5F_get_sohm_mesg_count_test");
    VERIFY(dmsg_count, 0, "H5F_get_sohm_mesg_count_test");

    /* Create a data set using the datatype of the dataset in the first file. */
    dataset2 = H5Dcreate2(file2, "dataset_2", dset1_tid, space, H5P_DEFAULT, H5P_DEFAULT,
        H5P_DEFAULT);
    CHECK_I(dataset2, "H5Dcreate2");

    /* Check on datatype storage status.  It should be 1 now. */
    ret = H5F_get_sohm_mesg_count_test(file2, H5O_DTYPE_ID, &dmsg_count);
    CHECK(ret, FAIL, "H5F_get_sohm_mesg_count_test");
    VERIFY(dmsg_count, 1, "H5F_get_sohm_mesg_count_test");

    /* Write the data to the dataset2 */
    ret = H5Dwrite(dataset2, s1_tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, orig);
    CHECK_I(ret, "H5Dwrite");

    ret = H5Dclose(dataset2);
    CHECK_I(ret, "H5Dclose");

    /* Close file 1 and the dataset's datatype in file 1.  Verify that the datatype in
     * file 2 is still accessible. */
    ret = H5Tclose(dset1_tid);
    CHECK_I(ret, "H5Tclose");

    ret = H5Fclose(file1);
    CHECK_I(ret, "H5Fclose");

    /* Open the dataset in file 2 */
    dataset2 = H5Dopen2(file2, "dataset_2", H5P_DEFAULT);
    CHECK_I(dataset2, "H5Dopen2");

    /* Retieve the dataset's datatype */
    dset2_tid = H5Dget_type(dataset2);
    CHECK_I(dset2_tid, "H5Dget_type");

    /* Verify the datatype is compound */
    dtype_class = H5Tget_class(dset2_tid);
    VERIFY(dtype_class, H5T_COMPOUND, "H5Tget_class");

    ret = H5Tclose(dset2_tid);
    CHECK_I(ret, "H5Tclose");

    ret = H5Dclose(dataset2);
    CHECK_I(ret, "H5Dclose");

    /* Finishing test and release resources */
    ret = H5Sclose(space);
    CHECK_I(ret, "H5Sclose");

    ret = H5Tclose(s1_tid);
    CHECK_I(ret, "H5Tclose");

    ret = H5Pclose(fcpl);
    CHECK_I(ret, "H5Pclose");

    ret = H5Fclose(file2);
    CHECK_I(ret, "H5Fclose");

    HDfree(orig);
}


/****************************************************************
**
**  test_sohm(): Main Shared Object Header Message testing routine.
**
****************************************************************/
void
test_sohm(void)
{
    /* Output message about test being performed */
    MESSAGE(5, ("Testing Shared Object Header Messages\n"));

    test_sohm_fcpl();		/* Test SOHMs and file creation plists */
    test_sohm_size1();          /* Tests the sizes of files with one SOHM */
    test_sohm_attrs();          /* Tests shared messages in attributes */
    test_sohm_size2(0);         /* Tests the sizes of files with multiple SOHMs */
    test_sohm_size2(1);         /* Tests the sizes of files with multiple
                                 * SOHMs, closing and reopening file after
                                 * each write. */
    test_sohm_delete();         /* Test deleting shared messages */
    test_sohm_delete_revert();  /* Test that a file with SOHMs becomes an
                                 * empty file again when they are deleted. */
    test_sohm_extlink();        /* Test SOHMs when external links are used */

    test_sohm_extend_dset();    /* Test extending shared datasets */
    test_sohm_external_dtype(); /* Test using datatype in another file */
} /* test_sohm() */


/*-------------------------------------------------------------------------
 * Function:	cleanup_sohm
 *
 * Purpose:	Cleanup temporary test files
 *
 * Return:	none
 *
 * Programmer:	James Laird
 *              October 9, 2006
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
void
cleanup_sohm(void)
{
    remove(FILENAME);
    remove(FILENAME_SRC);
    remove(FILENAME_DST);
}
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