diff options
Diffstat (limited to 'src/H5F.c')
| -rw-r--r-- | src/H5F.c | 1960 |
1 files changed, 37 insertions, 1923 deletions
@@ -20,7 +20,7 @@ #define H5F_PACKAGE /*suppress error about including H5Fpkg */ /* Interface initialization */ -#define H5_INTERFACE_INIT_FUNC H5F_init_interface +#define H5_INTERFACE_INIT_FUNC H5F__init_pub_interface /***********/ @@ -41,19 +41,6 @@ #include "H5SMprivate.h" /* Shared Object Header Messages */ #include "H5Tprivate.h" /* Datatypes */ -/* Predefined file drivers */ -#include "H5FDcore.h" /*temporary in-memory files */ -#include "H5FDfamily.h" /*family of files */ -#include "H5FDlog.h" /* sec2 driver with logging, for debugging */ -#include "H5FDmpi.h" /* MPI-based file drivers */ -#include "H5FDmulti.h" /*multiple files partitioned by mem usage */ -#include "H5FDsec2.h" /*Posix unbuffered I/O */ -#include "H5FDstdio.h" /* Standard C buffered I/O */ -#ifdef H5_HAVE_WINDOWS -#include "H5FDwindows.h" /* Windows buffered I/O */ -#endif -#include "H5FDdirect.h" /*Linux direct I/O */ - /****************/ /* Local Macros */ @@ -64,22 +51,6 @@ /* Local Typedefs */ /******************/ -/* Struct only used by functions H5F_get_objects and H5F_get_objects_cb */ -typedef struct H5F_olist_t { - H5I_type_t obj_type; /* Type of object to look for */ - hid_t *obj_id_list; /* Pointer to the list of open IDs to return */ - size_t *obj_id_count; /* Number of open IDs */ - struct { - hbool_t local; /* Set flag for "local" file searches */ - union { - H5F_file_t *shared; /* Pointer to shared file to look inside */ - const H5F_t *file; /* Pointer to file to look inside */ - } ptr; - } file_info; - size_t list_index; /* Current index in open ID array */ - size_t max_nobjs; /* Maximum # of IDs to put into array */ -} H5F_olist_t; - /********************/ /* Package Typedefs */ @@ -89,14 +60,7 @@ typedef struct H5F_olist_t { /********************/ /* Local Prototypes */ /********************/ -static herr_t H5F_get_objects(const H5F_t *f, unsigned types, size_t max_index, hid_t *obj_id_list, hbool_t app_ref, size_t *obj_id_count_ptr); -static int H5F_get_objects_cb(void *obj_ptr, hid_t obj_id, void *key); -static H5F_t *H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, - hid_t fapl_id, H5FD_t *lf); -static herr_t H5F_build_actual_name(const H5F_t *f, const H5P_genplist_t *fapl, - const char *name, char ** /*out*/ actual_name); -static herr_t H5F_dest(H5F_t *f, hid_t dxpl_id, hbool_t flush); -static herr_t H5F_close(H5F_t *f); + /*********************/ @@ -113,11 +77,6 @@ static herr_t H5F_close(H5F_t *f); /* Local Variables */ /*******************/ -/* Declare a free list to manage the H5F_t struct */ -H5FL_DEFINE(H5F_t); - -/* Declare a free list to manage the H5F_file_t struct */ -H5FL_DEFINE(H5F_file_t); /* File ID class */ static const H5I_class_t H5I_FILE_CLS[1] = {{ @@ -127,6 +86,35 @@ static const H5I_class_t H5I_FILE_CLS[1] = {{ (H5I_free_t)H5F_close /* Callback routine for closing objects of this class */ }}; + +/*-------------------------------------------------------------------------- +NAME + H5F__init_pub_interface -- Initialize interface-specific information +USAGE + herr_t H5F__init_pub_interface() +RETURNS + Non-negative on success/Negative on failure +DESCRIPTION + Initializes any interface-specific data or routines. (Just calls + H5F_init() currently). + +--------------------------------------------------------------------------*/ +static herr_t +H5F__init_pub_interface(void) +{ + herr_t ret_value = SUCCEED; /* Return value */ + FUNC_ENTER_STATIC + + /* + * Initialize the atom group for the file IDs. + */ + if(H5I_register_type(H5I_FILE_CLS) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to initialize interface") + + ret_value = H5F_init(); +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* H5F__init_pub_interface() */ /*------------------------------------------------------------------------- @@ -156,37 +144,6 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_init_interface - * - * Purpose: Initialize interface-specific information. - * - * Return: Success: non-negative - * Failure: negative - * - * Programmer: Robb Matzke - * Friday, November 20, 1998 - * - *------------------------------------------------------------------------- - */ -static herr_t -H5F_init_interface(void) -{ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI_NOINIT - - /* - * Initialize the atom group for the file IDs. - */ - if(H5I_register_type(H5I_FILE_CLS) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to initialize interface") - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_init_interface() */ - - -/*------------------------------------------------------------------------- * Function: H5F_term_interface * * Purpose: Terminate this interface: free all memory and reset global @@ -312,109 +269,6 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_access_plist - * - * Purpose: Returns a copy of the file access property list of the - * specified file. - * - * NOTE: Make sure that, if you are going to overwrite - * information in the copied property list that was - * previously opened and assigned to the property list, then - * you must close it before overwriting the values. - * - * Return: Success: Object ID for a copy of the file access - * property list. - * - * Failure: FAIL - * - * Programmer: Quincey Koziol - * Wednesday, May 25, 2005 - * - * Modifications: - * - *------------------------------------------------------------------------- - */ -hid_t -H5F_get_access_plist(H5F_t *f, hbool_t app_ref) -{ - H5P_genplist_t *new_plist; /* New property list */ - H5P_genplist_t *old_plist; /* Old property list */ - void *driver_info=NULL; - unsigned efc_size = 0; - hid_t ret_value = SUCCEED; - - FUNC_ENTER_NOAPI(FAIL) - - /* Check args */ - HDassert(f); - - /* Make a copy of the default file access property list */ - if(NULL == (old_plist = (H5P_genplist_t *)H5I_object(H5P_LST_FILE_ACCESS_ID_g))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") - if((ret_value = H5P_copy_plist(old_plist, app_ref)) < 0) - HGOTO_ERROR(H5E_INTERNAL, H5E_CANTINIT, FAIL, "can't copy file access property list") - if(NULL == (new_plist = (H5P_genplist_t *)H5I_object(ret_value))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a property list") - - /* Copy properties of the file access property list */ - if(H5P_set(new_plist, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, &(f->shared->mdc_initCacheCfg)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set initial metadata cache resize config.") - if(H5P_set(new_plist, H5F_ACS_DATA_CACHE_NUM_SLOTS_NAME, &(f->shared->rdcc_nslots)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set data cache number of slots") - if(H5P_set(new_plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, &(f->shared->rdcc_nbytes)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set data cache byte size") - if(H5P_set(new_plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, &(f->shared->rdcc_w0)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set preempt read chunks") - if(H5P_set(new_plist, H5F_ACS_ALIGN_THRHD_NAME, &(f->shared->threshold)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set alignment threshold") - if(H5P_set(new_plist, H5F_ACS_ALIGN_NAME, &(f->shared->alignment)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set alignment") - if(H5P_set(new_plist, H5F_ACS_GARBG_COLCT_REF_NAME, &(f->shared->gc_ref)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set garbage collect reference") - if(H5P_set(new_plist, H5F_ACS_META_BLOCK_SIZE_NAME, &(f->shared->meta_aggr.alloc_size)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set metadata cache size") - if(H5P_set(new_plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &(f->shared->sieve_buf_size)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't sieve buffer size") - if(H5P_set(new_plist, H5F_ACS_SDATA_BLOCK_SIZE_NAME, &(f->shared->sdata_aggr.alloc_size)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'small data' cache size") - if(H5P_set(new_plist, H5F_ACS_LATEST_FORMAT_NAME, &(f->shared->latest_format)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set 'latest format' flag") - if(f->shared->efc) - efc_size = H5F_efc_max_nfiles(f->shared->efc); - if(H5P_set(new_plist, H5F_ACS_EFC_SIZE_NAME, &efc_size) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't set elink file cache size") - - /* - * Since we're resetting the driver ID and info, close them if they - * exist in this new property list. - */ - if(H5P_facc_close(ret_value, NULL) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTFREE, FAIL, "can't free the old driver information") - - /* Increment the reference count on the driver ID and insert it into the property list */ - if(H5I_inc_ref(f->shared->lf->driver_id, FALSE) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINC, FAIL, "unable to increment ref count on VFL driver") - if(H5P_set(new_plist, H5F_ACS_FILE_DRV_ID_NAME, &(f->shared->lf->driver_id)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set file driver ID") - - /* Set the driver "info" in the property list */ - driver_info = H5FD_fapl_get(f->shared->lf); - if(driver_info != NULL && H5P_set(new_plist, H5F_ACS_FILE_DRV_INFO_NAME, &driver_info) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set file driver info") - - /* Set the file close degree appropriately */ - if(f->shared->fc_degree == H5F_CLOSE_DEFAULT && H5P_set(new_plist, H5F_ACS_CLOSE_DEGREE_NAME, &(f->shared->lf->cls->fc_degree)) < 0) { - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set file close degree") - } else if(f->shared->fc_degree != H5F_CLOSE_DEFAULT && H5P_set(new_plist, H5F_ACS_CLOSE_DEGREE_NAME, &(f->shared->fc_degree)) < 0) { - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set file close degree") - } - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_get_access_plist() */ - - -/*------------------------------------------------------------------------- * Function: H5Fget_obj_count * * Purpose: Public function returning the number of opened object IDs @@ -456,38 +310,6 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_obj_count - * - * Purpose: Private function return the number of opened object IDs - * (files, datasets, groups, datatypes) in the same file. - * - * Return: SUCCEED on success, FAIL on failure. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_get_obj_count(const H5F_t *f, unsigned types, hbool_t app_ref, size_t *obj_id_count_ptr) -{ - herr_t ret_value = SUCCEED; - - FUNC_ENTER_NOAPI(FAIL) - - /* Sanity check */ - HDassert(obj_id_count_ptr); - - /* Perform the query */ - if((ret_value = H5F_get_objects(f, types, 0, NULL, app_ref, obj_id_count_ptr)) < 0) - HGOTO_ERROR(H5E_INTERNAL, H5E_BADITER, FAIL, "H5F_get_objects failed") - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_get_obj_count() */ - - -/*------------------------------------------------------------------------- * Function: H5Fget_object_ids * * Purpose: Public function to return a list of opened object IDs. @@ -536,253 +358,6 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_obj_ids - * - * Purpose: Private function to return a list of opened object IDs. - * - * Return: Non-negative on success; can't fail. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_get_obj_ids(const H5F_t *f, unsigned types, size_t max_objs, hid_t *oid_list, hbool_t app_ref, size_t *obj_id_count_ptr) -{ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI(FAIL) - - /* Sanity check */ - HDassert(obj_id_count_ptr); - - /* Perform the query */ - if((ret_value = H5F_get_objects(f, types, max_objs, oid_list, app_ref, obj_id_count_ptr)) < 0) - HGOTO_ERROR(H5E_INTERNAL, H5E_BADITER, FAIL, "H5F_get_objects failed") - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_get_obj_ids() */ - - -/*--------------------------------------------------------------------------- - * Function: H5F_get_objects - * - * Purpose: This function is called by H5F_get_obj_count or - * H5F_get_obj_ids to get number of object IDs and/or a - * list of opened object IDs (in return value). - * Return: Non-negative on success; Can't fail. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 - * - *--------------------------------------------------------------------------- - */ -static herr_t -H5F_get_objects(const H5F_t *f, unsigned types, size_t max_nobjs, hid_t *obj_id_list, hbool_t app_ref, size_t *obj_id_count_ptr) -{ - size_t obj_id_count=0; /* Number of open IDs */ - H5F_olist_t olist; /* Structure to hold search results */ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI_NOINIT - - /* Sanity check */ - HDassert(obj_id_count_ptr); - - /* Set up search information */ - olist.obj_id_list = (max_nobjs==0 ? NULL : obj_id_list); - olist.obj_id_count = &obj_id_count; - olist.list_index = 0; - olist.max_nobjs = max_nobjs; - - /* Determine if we are searching for local or global objects */ - if(types & H5F_OBJ_LOCAL) { - olist.file_info.local = TRUE; - olist.file_info.ptr.file = f; - } /* end if */ - else { - olist.file_info.local = FALSE; - olist.file_info.ptr.shared = f ? f->shared : NULL; - } /* end else */ - - /* Iterate through file IDs to count the number, and put their - * IDs on the object list. */ - if(types & H5F_OBJ_FILE) { - olist.obj_type = H5I_FILE; - if(H5I_iterate(H5I_FILE, H5F_get_objects_cb, &olist, app_ref) < 0) - HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(1)") - } /* end if */ - - /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), - * or the caller wants to get the list of IDs and the list isn't full, - * search through dataset IDs to count number of datasets, and put their - * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { - if (types & H5F_OBJ_DATASET) { - olist.obj_type = H5I_DATASET; - if(H5I_iterate(H5I_DATASET, H5F_get_objects_cb, &olist, app_ref) < 0) - HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(2)") - } /* end if */ - } - - /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), - * or the caller wants to get the list of IDs and the list isn't full, - * search through group IDs to count number of groups, and put their - * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { - if(types & H5F_OBJ_GROUP) { - olist.obj_type = H5I_GROUP; - if(H5I_iterate(H5I_GROUP, H5F_get_objects_cb, &olist, app_ref) < 0) - HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(3)") - } /* end if */ - } - - /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), - * or the caller wants to get the list of IDs and the list isn't full, - * search through datatype IDs to count number of named datatypes, and put their - * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { - if(types & H5F_OBJ_DATATYPE) { - olist.obj_type = H5I_DATATYPE; - if(H5I_iterate(H5I_DATATYPE, H5F_get_objects_cb, &olist, app_ref) < 0) - HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(4)") - } /* end if */ - } - - /* If the caller just wants to count the number of objects (OLIST.MAX_NOBJS is zero), - * or the caller wants to get the list of IDs and the list isn't full, - * search through attribute IDs to count number of attributes, and put their - * IDs on the object list */ - if(!olist.max_nobjs || (olist.max_nobjs && olist.list_index<olist.max_nobjs)) { - if(types & H5F_OBJ_ATTR) { - olist.obj_type = H5I_ATTR; - if(H5I_iterate(H5I_ATTR, H5F_get_objects_cb, &olist, app_ref) < 0) - HGOTO_ERROR(H5E_FILE, H5E_BADITER, FAIL, "iteration failed(5)") - } /* end if */ - } - - /* Set the number of objects currently open */ - *obj_id_count_ptr = obj_id_count; - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_get_objects() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_get_objects_cb - * - * Purpose: H5F_get_objects' callback function. It verifies if an - * object is in the file, and either count it or put its ID - * on the list. - * - * Return: H5_ITER_STOP if the array of object IDs is filled up. - * H5_ITER_CONT otherwise. - * - * Programmer: Raymond Lu - * Wednesday, Dec 5, 2001 - * - *------------------------------------------------------------------------- - */ -static int -H5F_get_objects_cb(void *obj_ptr, hid_t obj_id, void *key) -{ - H5F_olist_t *olist = (H5F_olist_t *)key; /* Alias for search info */ - int ret_value = H5_ITER_CONT; /* Return value */ - hbool_t add_obj = FALSE; - - FUNC_ENTER_NOAPI_NOINIT - - HDassert(obj_ptr); - HDassert(olist); - - /* Count file IDs */ - if(olist->obj_type == H5I_FILE) { - if((olist->file_info.local && - (!olist->file_info.ptr.file || (olist->file_info.ptr.file && (H5F_t*)obj_ptr == olist->file_info.ptr.file) )) - || (!olist->file_info.local && - ( !olist->file_info.ptr.shared || (olist->file_info.ptr.shared && ((H5F_t*)obj_ptr)->shared == olist->file_info.ptr.shared) ))) { - add_obj = TRUE; - } - } /* end if */ - else { /* either count opened object IDs or put the IDs on the list */ - H5O_loc_t *oloc; /* Group entry info for object */ - - switch(olist->obj_type) { - case H5I_ATTR: - oloc = H5A_oloc((H5A_t *)obj_ptr); - break; - - case H5I_GROUP: - oloc = H5G_oloc((H5G_t *)obj_ptr); - break; - - case H5I_DATASET: - oloc = H5D_oloc((H5D_t *)obj_ptr); - break; - - case H5I_DATATYPE: - if(H5T_is_named((H5T_t*)obj_ptr)==TRUE) - oloc = H5T_oloc((H5T_t*)obj_ptr); - else - oloc = NULL; - break; - - case H5I_UNINIT: - case H5I_BADID: - case H5I_FILE: - case H5I_DATASPACE: - case H5I_REFERENCE: - case H5I_VFL: - case H5I_GENPROP_CLS: - case H5I_GENPROP_LST: - case H5I_ERROR_CLASS: - case H5I_ERROR_MSG: - case H5I_ERROR_STACK: - case H5I_NTYPES: - default: - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, H5_ITER_ERROR, "unknown data object") - } /* end switch */ - - if((olist->file_info.local && - ( (!olist->file_info.ptr.file && olist->obj_type == H5I_DATATYPE && H5T_is_immutable((H5T_t *)obj_ptr) == FALSE) - || (!olist->file_info.ptr.file && olist->obj_type != H5I_DATATYPE) - || (oloc && oloc->file == olist->file_info.ptr.file))) - || (!olist->file_info.local && - ((!olist->file_info.ptr.shared && olist->obj_type == H5I_DATATYPE && H5T_is_immutable((H5T_t *)obj_ptr) == FALSE) - || (!olist->file_info.ptr.shared && olist->obj_type != H5I_DATATYPE) - || (oloc && oloc->file && oloc->file->shared == olist->file_info.ptr.shared)))) { - add_obj = TRUE; - } /* end if */ - } /* end else */ - - if(TRUE==add_obj) { - /* Add the object's ID to the ID list, if appropriate */ - if(olist->obj_id_list) { - olist->obj_id_list[olist->list_index] = obj_id; - olist->list_index++; - } /* end if */ - - /* Increment the number of open objects */ - if(olist->obj_id_count) - (*olist->obj_id_count)++; - - /* Check if we've filled up the array. Return H5_ITER_STOP only if - * we have filled up the array. Otherwise return H5_ITER_CONT(RET_VALUE is - * preset to H5_ITER_CONT) because H5I_iterate needs the return value of - * H5_ITER_CONT to continue the iteration. */ - if(olist->max_nobjs>0 && olist->list_index>=olist->max_nobjs) - HGOTO_DONE(H5_ITER_STOP) /* Indicate that the iterator should stop */ - } - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_get_objects_cb() */ - - -/*------------------------------------------------------------------------- * Function: H5Fget_vfd_handle * * Purpose: Returns a pointer to the file handle of the low-level file @@ -845,8 +420,6 @@ done: htri_t H5Fis_hdf5(const char *name) { - H5FD_t *file = NULL; /* Low-level file struct */ - haddr_t sig_addr; /* Address of hdf5 file signature */ htri_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) @@ -856,592 +429,17 @@ H5Fis_hdf5(const char *name) if(!name || !*name) HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "no file name specified") - /* Open the file at the virtual file layer */ - if(NULL == (file = H5FD_open(name, H5F_ACC_RDONLY, H5P_FILE_ACCESS_DEFAULT, HADDR_UNDEF))) - HGOTO_ERROR(H5E_IO, H5E_CANTINIT, FAIL, "unable to open file") - - /* The file is an hdf5 file if the hdf5 file signature can be found */ - if(H5FD_locate_signature(file, H5AC_ind_dxpl_g, &sig_addr) < 0) - HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to locate file signature") - ret_value = (HADDR_UNDEF != sig_addr); + /* call the private is_HDF5 function */ + if((ret_value = H5F_is_hdf5(name)) < 0) + HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable open file") done: - /* Close the file */ - if(file) - if(H5FD_close(file) < 0 && ret_value >= 0) - HDONE_ERROR(H5E_IO, H5E_CANTCLOSEFILE, FAIL, "unable to close file") FUNC_LEAVE_API(ret_value) } /* end H5Fis_hdf5() */ /*------------------------------------------------------------------------- - * Function: H5F_new - * - * Purpose: Creates a new file object and initializes it. The - * H5Fopen and H5Fcreate functions then fill in various - * fields. If SHARED is a non-null pointer then the shared info - * to which it points has the reference count incremented. - * Otherwise a new, empty shared info struct is created and - * initialized with the specified file access property list. - * - * Errors: - * - * Return: Success: Ptr to a new file struct. - * - * Failure: NULL - * - * Programmer: Robb Matzke - * matzke@llnl.gov - * Jul 18 1997 - * - *------------------------------------------------------------------------- - */ -static H5F_t * -H5F_new(H5F_file_t *shared, unsigned flags, hid_t fcpl_id, hid_t fapl_id, H5FD_t *lf) -{ - H5F_t *f = NULL, *ret_value; - - FUNC_ENTER_NOAPI_NOINIT - - if(NULL == (f = H5FL_CALLOC(H5F_t))) - HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, NULL, "can't allocate top file structure") - f->file_id = -1; - - if(shared) { - HDassert(lf == NULL); - f->shared = shared; - } /* end if */ - else { - H5P_genplist_t *plist; /* Property list */ - unsigned efc_size; /* External file cache size */ - size_t u; /* Local index variable */ - - HDassert(lf != NULL); - if(NULL == (f->shared = H5FL_CALLOC(H5F_file_t))) - HGOTO_ERROR(H5E_FILE, H5E_NOSPACE, NULL, "can't allocate shared file structure") - - f->shared->flags = flags; - f->shared->sohm_addr = HADDR_UNDEF; - f->shared->sohm_vers = HDF5_SHAREDHEADER_VERSION; - for(u = 0; u < NELMTS(f->shared->fs_addr); u++) - f->shared->fs_addr[u] = HADDR_UNDEF; - f->shared->accum.loc = HADDR_UNDEF; - f->shared->lf = lf; - - /* - * Copy the file creation and file access property lists into the - * new file handle. We do this early because some values might need - * to change as the file is being opened. - */ - if(NULL == (plist = (H5P_genplist_t *)H5I_object(fcpl_id))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not property list") - f->shared->fcpl_id = H5P_copy_plist(plist, FALSE); - - /* Get the FCPL values to cache */ - if(H5P_get(plist, H5F_CRT_ADDR_BYTE_NUM_NAME, &f->shared->sizeof_addr) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get byte number for address") - if(H5P_get(plist, H5F_CRT_OBJ_BYTE_NUM_NAME, &f->shared->sizeof_size) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get byte number for object size") - if(H5P_get(plist, H5F_CRT_SHMSG_NINDEXES_NAME, &f->shared->sohm_nindexes) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get number of SOHM indexes") - HDassert(f->shared->sohm_nindexes < 255); - - /* Get the FAPL values to cache */ - if(NULL == (plist = (H5P_genplist_t *)H5I_object(fapl_id))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not file access property list") - if(H5P_get(plist, H5F_ACS_META_CACHE_INIT_CONFIG_NAME, &(f->shared->mdc_initCacheCfg)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get initial metadata cache resize config") - if(H5P_get(plist, H5F_ACS_DATA_CACHE_NUM_SLOTS_NAME, &(f->shared->rdcc_nslots)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get data cache number of slots") - if(H5P_get(plist, H5F_ACS_DATA_CACHE_BYTE_SIZE_NAME, &(f->shared->rdcc_nbytes)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get data cache byte size") - if(H5P_get(plist, H5F_ACS_PREEMPT_READ_CHUNKS_NAME, &(f->shared->rdcc_w0)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get preempt read chunk") - if(H5P_get(plist, H5F_ACS_ALIGN_THRHD_NAME, &(f->shared->threshold)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get alignment threshold") - if(H5P_get(plist, H5F_ACS_ALIGN_NAME, &(f->shared->alignment)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get alignment") - if(H5P_get(plist, H5F_ACS_GARBG_COLCT_REF_NAME,&(f->shared->gc_ref)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get garbage collect reference") - if(H5P_get(plist, H5F_ACS_SIEVE_BUF_SIZE_NAME, &(f->shared->sieve_buf_size)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get sieve buffer size") - if(H5P_get(plist, H5F_ACS_LATEST_FORMAT_NAME, &(f->shared->latest_format)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get 'latest format' flag") - if(H5P_get(plist, H5F_ACS_META_BLOCK_SIZE_NAME, &(f->shared->meta_aggr.alloc_size)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get metadata cache size") - f->shared->meta_aggr.feature_flag = H5FD_FEAT_AGGREGATE_METADATA; - if(H5P_get(plist, H5F_ACS_SDATA_BLOCK_SIZE_NAME, &(f->shared->sdata_aggr.alloc_size)) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get 'small data' cache size") - f->shared->sdata_aggr.feature_flag = H5FD_FEAT_AGGREGATE_SMALLDATA; - if(H5P_get(plist, H5F_ACS_EFC_SIZE_NAME, &efc_size) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get elink file cache size") - if(efc_size > 0) - if(NULL == (f->shared->efc = H5F_efc_create(efc_size))) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "can't create external file cache") - - /* Get the VFD values to cache */ - f->shared->maxaddr = H5FD_get_maxaddr(lf); - if(!H5F_addr_defined(f->shared->maxaddr)) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, NULL, "bad maximum address from VFD") - if(H5FD_get_feature_flags(lf, &f->shared->feature_flags) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't get feature flags from VFD") - if(H5FD_get_fs_type_map(lf, f->shared->fs_type_map) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "can't get free space type mapping from VFD") - if(H5MF_init_merge_flags(f) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "problem initializing free space merge flags") - f->shared->tmp_addr = f->shared->maxaddr; - /* Disable temp. space allocation for parallel I/O (for now) */ - /* (When we've arranged to have the relocated metadata addresses (and - * sizes) broadcast during the "end of epoch" metadata operations, - * this can be enabled - QAK) - */ - /* (This should be disabled when the metadata journaling branch is - * merged into the trunk and journaling is enabled, at least until - * we make it work. - QAK) - */ - f->shared->use_tmp_space = !(IS_H5FD_MPI(f)); - - /* - * Create a metadata cache with the specified number of elements. - * The cache might be created with a different number of elements and - * the access property list should be updated to reflect that. - */ - if(H5AC_create(f, &(f->shared->mdc_initCacheCfg)) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to create metadata cache") - - /* Create the file's "open object" information */ - if(H5FO_create(f) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to create open object data structure") - - /* Add new "shared" struct to list of open files */ - if(H5F_sfile_add(f->shared) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to append to list of open files") - } /* end else */ - - f->shared->nrefs++; - - /* Create the file's "top open object" information */ - if(H5FO_top_create(f) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to create open object data structure") - - /* Set return value */ - ret_value = f; - -done: - if(!ret_value && f) { - if(!shared) { - /* Attempt to clean up some of the shared file structures */ - if(f->shared->efc) - if(H5F_efc_destroy(f->shared->efc) < 0) - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, NULL, "can't destroy external file cache") - if(f->shared->fcpl_id > 0) - if(H5I_dec_ref(f->shared->fcpl_id) < 0) - HDONE_ERROR(H5E_FILE, H5E_CANTDEC, NULL, "can't close property list") - - f->shared = H5FL_FREE(H5F_file_t, f->shared); - } /* end if */ - f = H5FL_FREE(H5F_t, f); - } /* end if */ - - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_new() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_dest - * - * Purpose: Destroys a file structure. This function flushes the cache - * but doesn't do any other cleanup other than freeing memory - * for the file struct. The shared info for the file is freed - * only when its reference count reaches zero. - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Robb Matzke - * matzke@llnl.gov - * Jul 18 1997 - * - *------------------------------------------------------------------------- - */ -static herr_t -H5F_dest(H5F_t *f, hid_t dxpl_id, hbool_t flush) -{ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI_NOINIT - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - - if(1 == f->shared->nrefs) { - H5F_io_info_t fio_info; /* I/O info for operation */ - - /* Flush at this point since the file will be closed. - * Only try to flush the file if it was opened with write access, and if - * the caller requested a flush. - */ - if((f->shared->flags & H5F_ACC_RDWR) && flush) - if(H5F_flush(f, dxpl_id, TRUE) < 0) - HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush cache") - - /* Release the external file cache */ - if(f->shared->efc) { - if(H5F_efc_destroy(f->shared->efc) < 0) - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't destroy external file cache") - f->shared->efc = NULL; - } /* end if */ - - /* Release objects that depend on the superblock being initialized */ - if(f->shared->sblock) { - /* Shutdown file free space manager(s) */ - /* (We should release the free space information now (before truncating - * the file and before the metadata cache is shut down) since the - * free space manager is holding some data structures in memory - * and also because releasing free space can shrink the file's - * 'eoa' value) - */ - if(H5MF_close(f, dxpl_id) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release file free space info") - - /* Unpin the superblock, since we're about to destroy the cache */ - if(H5AC_unpin_entry(f->shared->sblock) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FSPACE, H5E_CANTUNPIN, FAIL, "unable to unpin superblock") - f->shared->sblock = NULL; - } /* end if */ - - /* Remove shared file struct from list of open files */ - if(H5F_sfile_remove(f->shared) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - - /* Shutdown the metadata cache */ - if(H5AC_dest(f, dxpl_id)) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - - /* - * Do not close the root group since we didn't count it, but free - * the memory associated with it. - */ - if(f->shared->root_grp) { - /* Free the root group */ - if(H5G_root_free(f->shared->root_grp) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - f->shared->root_grp = NULL; - } /* end if */ - - /* Set up I/O info for operation */ - fio_info.f = f; - if(NULL == (fio_info.dxpl = (H5P_genplist_t *)H5I_object(dxpl_id))) - HDONE_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") - - /* Destroy other components of the file */ - if(H5F__accum_reset(&fio_info, TRUE) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - if(H5FO_dest(f) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - f->shared->cwfs = (struct H5HG_heap_t **)H5MM_xfree(f->shared->cwfs); - if(H5G_node_close(f) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "problems closing file") - - /* Destroy file creation properties */ - if(H5I_GENPROP_LST != H5I_get_type(f->shared->fcpl_id)) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_BADTYPE, FAIL, "not a property list") - if(H5I_dec_ref(f->shared->fcpl_id) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTDEC, FAIL, "can't close property list") - - /* Only truncate the file on an orderly close, with write-access */ - if(f->closing && (H5F_ACC_RDWR & H5F_INTENT(f))) { - /* Truncate the file to the current allocated size */ - if(H5FD_truncate(f->shared->lf, dxpl_id, (unsigned)TRUE) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_WRITEERROR, FAIL, "low level truncate failed") - } /* end if */ - - /* Close the file */ - if(H5FD_close(f->shared->lf) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "unable to close file") - - /* Free mount table */ - f->shared->mtab.child = (H5F_mount_t *)H5MM_xfree(f->shared->mtab.child); - f->shared->mtab.nalloc = 0; - - /* Destroy shared file struct */ - f->shared = (H5F_file_t *)H5FL_FREE(H5F_file_t, f->shared); - - } else if(f->shared->nrefs > 0) { - /* - * There are other references to the shared part of the file. - * Only decrement the reference count. - */ - --f->shared->nrefs; - } - - /* Free the non-shared part of the file */ - f->open_name = (char *)H5MM_xfree(f->open_name); - f->actual_name = (char *)H5MM_xfree(f->actual_name); - f->extpath = (char *)H5MM_xfree(f->extpath); - if(H5FO_top_dest(f) < 0) - HDONE_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "problems closing file") - f->shared = NULL; - f = H5FL_FREE(H5F_t, f); - - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_dest() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_open - * - * Purpose: Opens (or creates) a file. This function understands the - * following flags which are similar in nature to the Posix - * open(2) flags. - * - * H5F_ACC_RDWR: Open with read/write access. If the file is - * currently open for read-only access then it - * will be reopened. Absence of this flag - * implies read-only access. - * - * H5F_ACC_CREAT: Create a new file if it doesn't exist yet. - * The permissions are 0666 bit-wise AND with - * the current umask. H5F_ACC_WRITE must also - * be specified. - * - * H5F_ACC_EXCL: This flag causes H5F_open() to fail if the - * file already exists. - * - * H5F_ACC_TRUNC: The file is truncated and a new HDF5 superblock - * is written. This operation will fail if the - * file is already open. - * - * Unlinking the file name from the group directed graph while - * the file is opened causes the file to continue to exist but - * one will not be able to upgrade the file from read-only - * access to read-write access by reopening it. Disk resources - * for the file are released when all handles to the file are - * closed. NOTE: This paragraph probably only applies to Unix; - * deleting the file name in other OS's has undefined results. - * - * The CREATE_PARMS argument is optional. A null pointer will - * cause the default file creation parameters to be used. - * - * The ACCESS_PARMS argument is optional. A null pointer will - * cause the default file access parameters to be used. - * - * Return: Success: A new file pointer. - * Failure: NULL - * - * Programmer: Robb Matzke - * Tuesday, September 23, 1997 - * - *------------------------------------------------------------------------- - */ -H5F_t * -H5F_open(const char *name, unsigned flags, hid_t fcpl_id, hid_t fapl_id, - hid_t dxpl_id) -{ - H5F_t *file = NULL; /*the success return value */ - H5F_file_t *shared = NULL; /*shared part of `file' */ - H5FD_t *lf = NULL; /*file driver part of `shared' */ - unsigned tent_flags; /*tentative flags */ - H5FD_class_t *drvr; /*file driver class info */ - H5P_genplist_t *a_plist; /*file access property list */ - H5F_close_degree_t fc_degree; /*file close degree */ - H5F_t *ret_value; /*actual return value */ - - FUNC_ENTER_NOAPI(NULL) - - /* - * If the driver has a `cmp' method then the driver is capable of - * determining when two file handles refer to the same file and the - * library can insure that when the application opens a file twice - * that the two handles coordinate their operations appropriately. - * Otherwise it is the application's responsibility to never open the - * same file more than once at a time. - */ - if(NULL == (drvr = H5FD_get_class(fapl_id))) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, NULL, "unable to retrieve VFL class") - - /* - * Opening a file is a two step process. First we try to open the - * file in a way which doesn't affect its state (like not truncating - * or creating it) so we can compare it with files that are already - * open. If that fails then we try again with the full set of flags - * (only if they're different than the original failed attempt). - * However, if the file driver can't distinquish between files then - * there's no reason to open the file tentatively because it's the - * application's responsibility to prevent this situation (there's no - * way for us to detect it here anyway). - */ - if(drvr->cmp) - tent_flags = flags & ~(H5F_ACC_CREAT|H5F_ACC_TRUNC|H5F_ACC_EXCL); - else - tent_flags = flags; - - if(NULL == (lf = H5FD_open(name, tent_flags, fapl_id, HADDR_UNDEF))) { - if(tent_flags == flags) { -#ifndef H5_USING_MEMCHECKER - time_t mytime = HDtime(NULL); - - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file: time = %s, name = '%s', tent_flags = %x", HDctime(&mytime), name, tent_flags) -#else /* H5_USING_MEMCHECKER */ - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file: name = '%s', tent_flags = %x", name, tent_flags) -#endif /* H5_USING_MEMCHECKER */ - } /* end if */ - H5E_clear_stack(NULL); - tent_flags = flags; - if(NULL == (lf = H5FD_open(name, tent_flags, fapl_id, HADDR_UNDEF))) { -#ifndef H5_USING_MEMCHECKER - time_t mytime = HDtime(NULL); - - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file: time = %s, name = '%s', tent_flags = %x", HDctime(&mytime), name, tent_flags) -#else /* H5_USING_MEMCHECKER */ - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file: name = '%s', tent_flags = %x", name, tent_flags) -#endif /* H5_USING_MEMCHECKER */ - } /* end if */ - } /* end if */ - - /* Is the file already open? */ - if((shared = H5F_sfile_search(lf)) != NULL) { - /* - * The file is already open, so use that one instead of the one we - * just opened. We only one one H5FD_t* per file so one doesn't - * confuse the other. But fail if this request was to truncate the - * file (since we can't do that while the file is open), or if the - * request was to create a non-existent file (since the file already - * exists), or if the new request adds write access (since the - * readers don't expect the file to change under them). - */ - if(H5FD_close(lf) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to close low-level file info") - if(flags & H5F_ACC_TRUNC) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to truncate a file which is already open") - if(flags & H5F_ACC_EXCL) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "file exists") - if((flags & H5F_ACC_RDWR) && 0 == (shared->flags & H5F_ACC_RDWR)) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "file is already open for read-only") - - /* Allocate new "high-level" file struct */ - if((file = H5F_new(shared, flags, fcpl_id, fapl_id, NULL)) == NULL) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to create new file object") - } /* end if */ - else { - /* Check if tentative open was good enough */ - if(flags != tent_flags) { - /* - * This file is not yet open by the library and the flags we used to - * open it are different than the desired flags. Close the tentative - * file and open it for real. - */ - if(H5FD_close(lf) < 0) { - file = NULL; /*to prevent destruction of wrong file*/ - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to close low-level file info") - } /* end if */ - if(NULL == (lf = H5FD_open(name, flags, fapl_id, HADDR_UNDEF))) { - file = NULL; /*to prevent destruction of wrong file*/ - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to open file") - } /* end if */ - } /* end if */ - - if(NULL == (file = H5F_new(NULL, flags, fcpl_id, fapl_id, lf))) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to create new file object") - } /* end else */ - - /* Retain the name the file was opened with */ - file->open_name = H5MM_xstrdup(name); - - /* Short cuts */ - shared = file->shared; - lf = shared->lf; - - /* - * Read or write the file superblock, depending on whether the file is - * empty or not. - */ - if(0 == H5FD_get_eof(lf) && (flags & H5F_ACC_RDWR)) { - /* - * We've just opened a fresh new file (or truncated one). We need - * to create & write the superblock. - */ - - /* Initialize information about the superblock and allocate space for it */ - /* (Writes superblock extension messages, if there are any) */ - if(H5F_super_init(file, dxpl_id) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to allocate file superblock") - - /* Create and open the root group */ - /* (This must be after the space for the superblock is allocated in - * the file, since the superblock must be at offset 0) - */ - if(H5G_mkroot(file, dxpl_id, TRUE) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to create/open root group") - } else if (1 == shared->nrefs) { - /* Read the superblock if it hasn't been read before. */ - if(H5F_super_read(file, dxpl_id) < 0) - HGOTO_ERROR(H5E_FILE, H5E_READERROR, NULL, "unable to read superblock") - - /* Open the root group */ - if(H5G_mkroot(file, dxpl_id, FALSE) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "unable to read root group") - } /* end if */ - - /* Get the file access property list, for future queries */ - if(NULL == (a_plist = (H5P_genplist_t *)H5I_object(fapl_id))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, NULL, "not file access property list") - - /* - * Decide the file close degree. If it's the first time to open the - * file, set the degree to access property list value; if it's the - * second time or later, verify the access property list value matches - * the degree in shared file structure. - */ - if(H5P_get(a_plist, H5F_ACS_CLOSE_DEGREE_NAME, &fc_degree) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, NULL, "can't get file close degree") - - if(shared->nrefs == 1) { - if(fc_degree == H5F_CLOSE_DEFAULT) - shared->fc_degree = lf->cls->fc_degree; - else - shared->fc_degree = fc_degree; - } else if(shared->nrefs > 1) { - if(fc_degree == H5F_CLOSE_DEFAULT && shared->fc_degree != lf->cls->fc_degree) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "file close degree doesn't match") - if(fc_degree != H5F_CLOSE_DEFAULT && fc_degree != shared->fc_degree) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "file close degree doesn't match") - } /* end if */ - - /* Formulate the absolute path for later search of target file for external links */ - if(H5_build_extpath(name, &file->extpath) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to build extpath") - - /* Formulate the actual file name, after following symlinks, etc. */ - if(H5F_build_actual_name(file, a_plist, name, &file->actual_name) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, NULL, "unable to build actual name") - - /* Success */ - ret_value = file; - -done: - if(!ret_value && file) - if(H5F_dest(file, dxpl_id, FALSE) < 0) - HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, NULL, "problems closing file") - - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_open() */ - - -/*------------------------------------------------------------------------- * Function: H5Fcreate * * Purpose: This is the primary function for creating HDF5 files . The @@ -1736,297 +734,6 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_flush - * - * Purpose: Flushes cached data. - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Robb Matzke - * matzke@llnl.gov - * Aug 29 1997 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_flush(H5F_t *f, hid_t dxpl_id, hbool_t closing) -{ - H5F_io_info_t fio_info; /* I/O info for operation */ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI(FAIL) - - /* Sanity check arguments */ - HDassert(f); - - /* Flush any cached dataset storage raw data */ - if(H5D_flush(f, dxpl_id) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush dataset cache") - - /* Release any space allocated to space aggregators, so that the eoa value - * corresponds to the end of the space written to in the file. - */ - /* (needs to happen before cache flush, with superblock write, since the - * 'eoa' value is written in superblock -QAK) - */ - if(H5MF_free_aggrs(f, dxpl_id) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't release file space") - - /* Flush the entire metadata cache */ - if(H5AC_flush(f, dxpl_id) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_CACHE, H5E_CANTFLUSH, FAIL, "unable to flush metadata cache") - - /* Set up I/O info for operation */ - fio_info.f = f; - if(NULL == (fio_info.dxpl = (H5P_genplist_t *)H5I_object(dxpl_id))) - HDONE_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") - - /* Flush out the metadata accumulator */ - if(H5F__accum_flush(&fio_info) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_IO, H5E_CANTFLUSH, FAIL, "unable to flush metadata accumulator") - - /* Flush file buffers to disk. */ - if(H5FD_flush(f->shared->lf, dxpl_id, closing) < 0) - /* Push error, but keep going*/ - HDONE_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "low level flush failed") - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_flush() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_close - * - * Purpose: Closes a file or causes the close operation to be pended. - * This function is called two ways: from the API it gets called - * by H5Fclose->H5I_dec_ref->H5F_close when H5I_dec_ref() - * decrements the file ID reference count to zero. The file ID - * is removed from the H5I_FILE group by H5I_dec_ref() just - * before H5F_close() is called. If there are open object - * headers then the close is pended by moving the file to the - * H5I_FILE_CLOSING ID group (the f->closing contains the ID - * assigned to file). - * - * This function is also called directly from H5O_close() when - * the last object header is closed for the file and the file - * has a pending close. - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Robb Matzke - * Tuesday, September 23, 1997 - * - *------------------------------------------------------------------------- - */ -static herr_t -H5F_close(H5F_t *f) -{ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI_NOINIT - - /* Sanity check */ - HDassert(f); - HDassert(f->file_id > 0); /* This routine should only be called when a file ID's ref count drops to zero */ - - /* Perform checks for "semi" file close degree here, since closing the - * file is not allowed if there are objects still open */ - if(f->shared->fc_degree == H5F_CLOSE_SEMI) { - unsigned nopen_files = 0; /* Number of open files in file/mount hierarchy */ - unsigned nopen_objs = 0; /* Number of open objects in file/mount hierarchy */ - - /* Get the number of open objects and open files on this file/mount hierarchy */ - if(H5F_mount_count_ids(f, &nopen_files, &nopen_objs) < 0) - HGOTO_ERROR(H5E_SYM, H5E_MOUNT, FAIL, "problem checking mount hierarchy") - - /* If there are no other file IDs open on this file/mount hier., but - * there are still open objects, issue an error and bail out now, - * without decrementing the file ID's reference count and triggering - * a "real" attempt at closing the file */ - if(nopen_files == 1 && nopen_objs > 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close file, there are objects still open") - } /* end if */ - - /* Reset the file ID for this file */ - f->file_id = -1; - - /* Attempt to close the file/mount hierarchy */ - if(H5F_try_close(f) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close file") - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_close() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_try_close - * - * Purpose: Attempts to close a file due to one of several actions: - * - The reference count on the file ID dropped to zero - * - The last open object was closed in the file - * - The file was unmounted - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Quincey Koziol - * Tuesday, July 19, 2005 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_try_close(H5F_t *f) -{ - unsigned nopen_files = 0; /* Number of open files in file/mount hierarchy */ - unsigned nopen_objs = 0; /* Number of open objects in file/mount hierarchy */ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI_NOINIT - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - - /* Check if this file is already in the process of closing */ - if(f->closing) - HGOTO_DONE(SUCCEED) - - /* Get the number of open objects and open files on this file/mount hierarchy */ - if(H5F_mount_count_ids(f, &nopen_files, &nopen_objs) < 0) - HGOTO_ERROR(H5E_SYM, H5E_MOUNT, FAIL, "problem checking mount hierarchy") - - /* - * Close file according to close degree: - * - * H5F_CLOSE_WEAK: if there are still objects open, wait until - * they are all closed. - * H5F_CLOSE_SEMI: if there are still objects open, return fail; - * otherwise, close file. - * H5F_CLOSE_STRONG: if there are still objects open, close them - * first, then close file. - */ - switch(f->shared->fc_degree) { - case H5F_CLOSE_WEAK: - /* - * If file or object IDS are still open then delay deletion of - * resources until they have all been closed. Flush all - * caches and update the object header anyway so that failing to - * close all objects isn't a major problem. - */ - if((nopen_files + nopen_objs) > 0) - HGOTO_DONE(SUCCEED) - break; - - case H5F_CLOSE_SEMI: - /* Can leave safely if file IDs are still open on this file */ - if(nopen_files > 0) - HGOTO_DONE(SUCCEED) - - /* Sanity check: If close degree if "semi" and we have gotten this - * far and there are objects left open, bail out now */ - HDassert(nopen_files == 0 && nopen_objs == 0); - - /* If we've gotten this far (ie. there are no open objects in the file), fall through to flush & close */ - break; - - case H5F_CLOSE_STRONG: - /* If there are other open files in the hierarchy, we can leave now */ - if(nopen_files > 0) - HGOTO_DONE(SUCCEED) - - /* If we've gotten this far (ie. there are no open file IDs in the file/mount hierarchy), fall through to flush & close */ - break; - - case H5F_CLOSE_DEFAULT: - default: - HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close file, unknown file close degree") - } /* end switch */ - - /* Mark this file as closing (prevents re-entering file shutdown code below) */ - f->closing = TRUE; - - /* If the file close degree is "strong", close all the open objects in this file */ - if(f->shared->fc_degree == H5F_CLOSE_STRONG) { - HDassert(nopen_files == 0); - - /* Forced close of all opened objects in this file */ - if(f->nopen_objs > 0) { - size_t obj_count; /* # of open objects */ - hid_t objs[128]; /* Array of objects to close */ - herr_t result; /* Local result from obj ID query */ - size_t u; /* Local index variable */ - - /* Get the list of IDs of open dataset, group, & attribute objects */ - while((result = H5F_get_obj_ids(f, H5F_OBJ_LOCAL | H5F_OBJ_DATASET | H5F_OBJ_GROUP | H5F_OBJ_ATTR, (int)(sizeof(objs) / sizeof(objs[0])), objs, FALSE, &obj_count)) <= 0 - && obj_count != 0 ) { - - /* Try to close all the open objects in this file */ - for(u = 0; u < obj_count; u++) - if(H5I_dec_ref(objs[u]) < 0) - HGOTO_ERROR(H5E_ATOM, H5E_CLOSEERROR, FAIL, "can't close object") - } /* end while */ - if(result < 0) - HGOTO_ERROR(H5E_INTERNAL, H5E_BADITER, FAIL, "H5F_get_obj_ids failed(1)") - - /* Get the list of IDs of open named datatype objects */ - /* (Do this separately from the dataset & attribute IDs, because - * they could be using one of the named datatypes and then the - * open named datatype ID will get closed twice) - */ - while((result = H5F_get_obj_ids(f, H5F_OBJ_LOCAL | H5F_OBJ_DATATYPE, (int)(sizeof(objs) / sizeof(objs[0])), objs, FALSE, &obj_count)) <= 0 - && obj_count != 0) { - - /* Try to close all the open objects in this file */ - for(u = 0; u < obj_count; u++) - if(H5I_dec_ref(objs[u]) < 0) - HGOTO_ERROR(H5E_ATOM, H5E_CLOSEERROR, FAIL, "can't close object") - } /* end while */ - if(result < 0) - HGOTO_ERROR(H5E_INTERNAL, H5E_BADITER, FAIL, "H5F_get_obj_ids failed(2)") - } /* end if */ - } /* end if */ - - /* Check if this is a child file in a mounting hierarchy & proceed up the - * hierarchy if so. - */ - if(f->parent) - if(H5F_try_close(f->parent) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't close parent file") - - /* Unmount and close each child before closing the current file. */ - if(H5F_close_mounts(f) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "can't unmount child files") - - /* If there is more than one reference to the shared file struct and the - * file has an external file cache, we should see if it can be closed. This - * can happen if a cycle is formed with external file caches */ - if(f->shared->efc && (f->shared->nrefs > 1)) - if(H5F_efc_try_close(f) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTRELEASE, FAIL, "can't attempt to close EFC") - - /* Delay flush until the shared file struct is closed, in H5F_dest. If the - * application called H5Fclose, it would have been flushed in that function - * (unless it will have been flushed in H5F_dest anyways). */ - - /* - * Destroy the H5F_t struct and decrement the reference count for the - * shared H5F_file_t struct. If the reference count for the H5F_file_t - * struct reaches zero then destroy it also. - */ - if(H5F_dest(f, H5AC_dxpl_id, TRUE) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTCLOSEFILE, FAIL, "problems closing file") - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_try_close() */ - - -/*------------------------------------------------------------------------- * Function: H5Fclose * * Purpose: This function closes the file specified by FILE_ID by @@ -2191,382 +898,6 @@ done: /*------------------------------------------------------------------------- - * Function: H5F_get_id - * - * Purpose: Get the file ID, incrementing it, or "resurrecting" it as - * appropriate. - * - * Return: Non-negative on success/Negative on failure - * - * Programmer: Raymond Lu - * Oct 29, 2003 - * - *------------------------------------------------------------------------- - */ -hid_t -H5F_get_id(H5F_t *file, hbool_t app_ref) -{ - hid_t ret_value; - - FUNC_ENTER_NOAPI_NOINIT - - HDassert(file); - - if(file->file_id == -1) { - /* Get an atom for the file */ - if((file->file_id = H5I_register(H5I_FILE, file, app_ref)) < 0) - HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize file") - } else { - /* Increment reference count on atom. */ - if(H5I_inc_ref(file->file_id, app_ref) < 0) - HGOTO_ERROR(H5E_ATOM, H5E_CANTSET, FAIL, "incrementing file ID failed") - } /* end else */ - - ret_value = file->file_id; - -done: - FUNC_LEAVE_NOAPI(ret_value) -} /* end H5F_get_id() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_incr_nopen_objs - * - * Purpose: Increment the number of open objects for a file. - * - * Return: Success: The number of open objects, after the increment - * - * Failure: (can't happen) - * - * Programmer: Quincey Koziol - * koziol@hdfgroup.org - * Mar 6 2007 - * - *------------------------------------------------------------------------- - */ -unsigned -H5F_incr_nopen_objs(H5F_t *f) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - HDassert(f); - - FUNC_LEAVE_NOAPI(++f->nopen_objs) -} /* end H5F_incr_nopen_objs() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_decr_nopen_objs - * - * Purpose: Decrement the number of open objects for a file. - * - * Return: Success: The number of open objects, after the decrement - * - * Failure: (can't happen) - * - * Programmer: Quincey Koziol - * koziol@hdfgroup.org - * Mar 6 2007 - * - *------------------------------------------------------------------------- - */ -unsigned -H5F_decr_nopen_objs(H5F_t *f) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - HDassert(f); - - FUNC_LEAVE_NOAPI(--f->nopen_objs) -} /* end H5F_decr_nopen_objs() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_build_actual_name - * - * Purpose: Retrieve the name of a file, after following symlinks, etc. - * - * Note: Currently only working for "POSIX I/O compatible" VFDs - * - * Return: Success: 0 - * Failure: -1 - * - * Programmer: Quincey Koziol - * November 25, 2009 - * - *------------------------------------------------------------------------- - */ -static herr_t -H5F_build_actual_name(const H5F_t *f, const H5P_genplist_t *fapl, const char *name, - char **actual_name/*out*/) -{ - hid_t new_fapl_id = -1; /* ID for duplicated FAPL */ - herr_t ret_value = SUCCEED; /* Return value */ - - FUNC_ENTER_NOAPI_NOINIT - - /* Sanity check */ - HDassert(f); - HDassert(fapl); - HDassert(name); - HDassert(actual_name); - - /* Clear actual name pointer to begin with */ - *actual_name = NULL; - -/* Assume that if the OS can't create symlinks, that we don't need to worry - * about resolving them either. -QAK - */ -#ifdef H5_HAVE_SYMLINK - /* Check for POSIX I/O compatible file handle */ - if(H5F_HAS_FEATURE(f, H5FD_FEAT_POSIX_COMPAT_HANDLE)) { - h5_stat_t lst; /* Stat info from lstat() call */ - - /* Call lstat() on the file's name */ - if(HDlstat(name, &lst) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve stat info for file") - - /* Check for symbolic link */ - if(S_IFLNK == (lst.st_mode & S_IFMT)) { - H5P_genplist_t *new_fapl; /* Duplicated FAPL */ - int *fd; /* POSIX I/O file descriptor */ - h5_stat_t st; /* Stat info from stat() call */ - h5_stat_t fst; /* Stat info from fstat() call */ - char realname[PATH_MAX]; /* Fully resolved path name of file */ - hbool_t want_posix_fd; /* Flag for retrieving file descriptor from VFD */ - - /* Perform a sanity check that the file or link wasn't switched - * between when we opened it and when we called lstat(). This is - * according to the security best practices for lstat() documented - * here: https://www.securecoding.cert.org/confluence/display/seccode/POS35-C.+Avoid+race+conditions+while+checking+for+the+existence+of+a+symbolic+link - */ - - /* Copy the FAPL object to modify */ - if((new_fapl_id = H5P_copy_plist(fapl, FALSE)) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTCOPY, FAIL, "unable to copy file access property list") - if(NULL == (new_fapl = (H5P_genplist_t *)H5I_object(new_fapl_id))) - HGOTO_ERROR(H5E_FILE, H5E_CANTCREATE, FAIL, "can't get property list") - - /* Set the character encoding on the new property list */ - want_posix_fd = TRUE; - if(H5P_set(new_fapl, H5F_ACS_WANT_POSIX_FD_NAME, &want_posix_fd) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTSET, FAIL, "can't set character encoding") - - /* Retrieve the file handle */ - if(H5F_get_vfd_handle(f, new_fapl_id, (void **)&fd) < 0) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve POSIX file descriptor") - - /* Stat the filename we're resolving */ - if(HDstat(name, &st) < 0) - HSYS_GOTO_ERROR(H5E_FILE, H5E_BADFILE, FAIL, "unable to stat file") - - /* Stat the file we opened */ - if(HDfstat(*fd, &fst) < 0) - HSYS_GOTO_ERROR(H5E_FILE, H5E_BADFILE, FAIL, "unable to fstat file") - - /* Verify that the files are really the same */ - if(st.st_mode != fst.st_mode || st.st_ino != fst.st_ino || st.st_dev != fst.st_dev) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "files' st_ino or st_dev fields changed!") - - /* Get the resolved path for the file name */ - if(NULL == HDrealpath(name, realname)) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "can't retrieve real path for file") - - /* Duplicate the resolved path for the file name */ - if(NULL == (*actual_name = (char *)H5MM_strdup(realname))) - HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, FAIL, "can't duplicate real path") - } /* end if */ - } /* end if */ -#endif /* H5_HAVE_SYMLINK */ - - /* Check if we've resolved the file's name */ - if(NULL == *actual_name) { - /* Just duplicate the name used to open the file */ - if(NULL == (*actual_name = (char *)H5MM_strdup(name))) - HGOTO_ERROR(H5E_FILE, H5E_CANTALLOC, FAIL, "can't duplicate open name") - } /* end else */ - -done: - /* Close the property list */ - if(new_fapl_id > 0) - if(H5I_dec_app_ref(new_fapl_id) < 0) - HDONE_ERROR(H5E_FILE, H5E_CANTCLOSEOBJ, FAIL, "can't close duplicated FAPL") - - FUNC_LEAVE_NOAPI(ret_value) -} /* H5F_build_actual_name() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_addr_encode_len - * - * Purpose: Encodes an address into the buffer pointed to by *PP and - * then increments the pointer to the first byte after the - * address. An undefined value is stored as all 1's. - * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 - * - *------------------------------------------------------------------------- - */ -void -H5F_addr_encode_len(size_t addr_len, uint8_t **pp/*in,out*/, haddr_t addr) -{ - unsigned u; /* Local index variable */ - - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - HDassert(addr_len); - HDassert(pp && *pp); - - if(H5F_addr_defined(addr)) { - for(u = 0; u < addr_len; u++) { - *(*pp)++ = (uint8_t)(addr & 0xff); - addr >>= 8; - } /* end for */ - HDassert("overflow" && 0 == addr); - } /* end if */ - else { - for(u = 0; u < addr_len; u++) - *(*pp)++ = 0xff; - } /* end else */ - - FUNC_LEAVE_NOAPI_VOID -} /* end H5F_addr_encode_len() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_addr_encode - * - * Purpose: Encodes an address into the buffer pointed to by *PP and - * then increments the pointer to the first byte after the - * address. An undefined value is stored as all 1's. - * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 - * - *------------------------------------------------------------------------- - */ -void -H5F_addr_encode(const H5F_t *f, uint8_t **pp/*in,out*/, haddr_t addr) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - HDassert(f); - - H5F_addr_encode_len(H5F_SIZEOF_ADDR(f), pp, addr); - - FUNC_LEAVE_NOAPI_VOID -} /* end H5F_addr_encode() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_addr_decode_len - * - * Purpose: Decodes an address from the buffer pointed to by *PP and - * updates the pointer to point to the next byte after the - * address. - * - * If the value read is all 1's then the address is returned - * with an undefined value. - * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 - * - *------------------------------------------------------------------------- - */ -void -H5F_addr_decode_len(size_t addr_len, const uint8_t **pp/*in,out*/, haddr_t *addr_p/*out*/) -{ - hbool_t all_zero = TRUE; /* True if address was all zeroes */ - unsigned u; /* Local index variable */ - - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - HDassert(addr_len); - HDassert(pp && *pp); - HDassert(addr_p); - - /* Reset value in destination */ - *addr_p = 0; - - /* Decode bytes from address */ - for(u = 0; u < addr_len; u++) { - uint8_t c; /* Local decoded byte */ - - /* Get decoded byte (and advance pointer) */ - c = *(*pp)++; - - /* Check for non-undefined address byte value */ - if(c != 0xff) - all_zero = FALSE; - - if(u < sizeof(*addr_p)) { - haddr_t tmp = c; /* Local copy of address, for casting */ - - /* Shift decoded byte to correct position */ - tmp <<= (u * 8); /*use tmp to get casting right */ - - /* Merge into already decoded bytes */ - *addr_p |= tmp; - } /* end if */ - else - if(!all_zero) - HDassert(0 == **pp); /*overflow */ - } /* end for */ - - /* If 'all_zero' is still TRUE, the address was entirely composed of '0xff' - * bytes, which is the encoded form of 'HADDR_UNDEF', so set the destination - * to that value */ - if(all_zero) - *addr_p = HADDR_UNDEF; - - FUNC_LEAVE_NOAPI_VOID -} /* end H5F_addr_decode_len() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_addr_decode - * - * Purpose: Decodes an address from the buffer pointed to by *PP and - * updates the pointer to point to the next byte after the - * address. - * - * If the value read is all 1's then the address is returned - * with an undefined value. - * - * Return: void - * - * Programmer: Robb Matzke - * Friday, November 7, 1997 - * - *------------------------------------------------------------------------- - */ -void -H5F_addr_decode(const H5F_t *f, const uint8_t **pp/*in,out*/, haddr_t *addr_p/*out*/) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - HDassert(f); - - H5F_addr_decode_len(H5F_SIZEOF_ADDR(f), pp, addr_p); - - FUNC_LEAVE_NOAPI_VOID -} /* end H5F_addr_decode() */ - - -/*------------------------------------------------------------------------- * Function: H5Fget_freespace * * Purpose: Retrieves the amount of free space in the file. @@ -2694,8 +1025,6 @@ ssize_t H5Fget_file_image(hid_t file_id, void *buf_ptr, size_t buf_len) { H5F_t *file; /* File object for file ID */ - H5FD_t *fd_ptr; /* file driver */ - haddr_t eoa; /* End of file address */ ssize_t ret_value; /* Return value */ FUNC_ENTER_API(FAIL) @@ -2704,79 +1033,11 @@ H5Fget_file_image(hid_t file_id, void *buf_ptr, size_t buf_len) /* Check args */ if(NULL == (file = (H5F_t *)H5I_object_verify(file_id, H5I_FILE))) HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a file ID") - if(!file || !file->shared || !file->shared->lf) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "file_id yields invalid file pointer") - fd_ptr = file->shared->lf; - if(!fd_ptr->cls) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "fd_ptr yields invalid class pointer") - - /* the address space used by the split and multi file drivers is not - * a good fit for this call. Since the plan is to depreciate these - * drivers anyway, don't bother to do a "force fit". - * - * The following clause tests for the multi file driver, and fails - * if the supplied file has the multi file driver as its top level - * file driver. However, this test will not work if there is some - * other file driver sitting on top of the multi file driver. - * - * I'm not sure if this is possible at present, but in all likelyhood, - * it will become possible in the future. On the other hand, we may - * remove the split/multi file drivers before then. - * - * I am leaving this solution in for now, but we should review it, - * and improve the solution if necessary. - * - * JRM -- 11/11/22 - */ - if(HDstrcmp(fd_ptr->cls->name, "multi") == 0) - HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "Not supported for multi file driver.") - - /* While the family file driver is conceptually fully compatible - * with the get file image operation, it sets a file driver message - * in the super block that prevents the image being opened with any - * driver other than the family file driver. Needless to say, this - * rather defeats the purpose of the get file image operation. - * - * While this problem is quire solvable, the required time and - * resources are lacking at present. Hence, for now, we don't - * allow the get file image operation to be perfomed on files - * opened with the family file driver. - * - * Observe that the following test only looks at the top level - * driver, and fails if there is some other driver sitting on to - * of the family file driver. - * - * I don't think this can happen at present, but that may change - * in the future. - * JRM -- 12/21/11 - */ - if(HDstrcmp(fd_ptr->cls->name, "family") == 0) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "Not supported for family file driver.") - - - /* Go get the actual file size */ - if(HADDR_UNDEF == (eoa = H5FD_get_eoa(file->shared->lf, H5FD_MEM_DEFAULT))) - HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get file size") - - /* set ret_value = to eoa -- will overwrite this if appropriate */ - ret_value = (ssize_t)eoa; - - /* test to see if a buffer was provided -- if not, we are done */ - if(buf_ptr != NULL) { - size_t space_needed; /* size of file image */ - /* Check for buffer too small */ - if((haddr_t)buf_len < eoa) - HGOTO_ERROR(H5E_FILE, H5E_BADVALUE, FAIL, "supplied buffer too small") + /* call private get_file_image function */ + if((ret_value = H5F_get_file_image(file, buf_ptr, buf_len)) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get file image") - space_needed = (size_t)eoa; - - /* read in the file image */ - /* (Note compensation for base address addition in internal routine) */ - if(H5FD_read(fd_ptr, H5AC_ind_dxpl_g, H5FD_MEM_DEFAULT, 0, space_needed, buf_ptr) < 0) - HGOTO_ERROR(H5E_FILE, H5E_READERROR, FAIL, "file image read request failed") - } /* end if */ - done: FUNC_LEAVE_API(ret_value) } /* H5Fget_file_image() */ @@ -3153,150 +1414,3 @@ H5Fclear_elink_file_cache(hid_t file_id) done: FUNC_LEAVE_API(ret_value) } /* end H5Fclear_elink_file_cache() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_set_grp_btree_shared - * - * Purpose: Set the grp_btree_shared field with a valid ref-count pointer. - * - * Return: Success: SUCCEED - * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/19/11 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_set_grp_btree_shared(H5F_t *f, H5RC_t *rc) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - HDassert(rc); - - f->shared->grp_btree_shared = rc; - - FUNC_LEAVE_NOAPI(SUCCEED) -} /* H5F_set_grp_btree_shared() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_set_sohm_addr - * - * Purpose: Set the sohm_addr field with a new value. - * - * Return: Success: SUCCEED - * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_set_sohm_addr(H5F_t *f, haddr_t addr) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - - f->shared->sohm_addr = addr; - - FUNC_LEAVE_NOAPI(SUCCEED) -} /* H5F_set_sohm_addr() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_set_sohm_vers - * - * Purpose: Set the sohm_vers field with a new value. - * - * Return: Success: SUCCEED - * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_set_sohm_vers(H5F_t *f, unsigned vers) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - - f->shared->sohm_vers = vers; - - FUNC_LEAVE_NOAPI(SUCCEED) -} /* H5F_set_sohm_vers() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_set_sohm_nindexes - * - * Purpose: Set the sohm_nindexes field with a new value. - * - * Return: Success: SUCCEED - * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_set_sohm_nindexes(H5F_t *f, unsigned nindexes) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - - f->shared->sohm_nindexes = nindexes; - - FUNC_LEAVE_NOAPI(SUCCEED) -} /* H5F_set_sohm_nindexes() */ - - -/*------------------------------------------------------------------------- - * Function: H5F_set_store_msg_crt_idx - * - * Purpose: Set the store_msg_crt_idx field with a new value. - * - * Return: Success: SUCCEED - * Failure: FAIL - * - * Programmer: Quincey Koziol - * 7/20/11 - * - *------------------------------------------------------------------------- - */ -herr_t -H5F_set_store_msg_crt_idx(H5F_t *f, hbool_t flag) -{ - /* Use FUNC_ENTER_NOAPI_NOINIT_NOERR here to avoid performance issues */ - FUNC_ENTER_NOAPI_NOINIT_NOERR - - /* Sanity check */ - HDassert(f); - HDassert(f->shared); - - f->shared->store_msg_crt_idx = flag; - - FUNC_LEAVE_NOAPI(SUCCEED) -} /* H5F_set_store_msg_crt_idx() */ - |