/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 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. * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* * This file contains private information about the H5P module */ #ifndef _H5Pprivate_H #define _H5Pprivate_H /* Include package's public header */ #include "H5Ppublic.h" /* Private headers needed by this file */ #include "H5private.h" /* Generic Functions */ /**************************/ /* Library Private Macros */ /**************************/ /* ======== String creation property names ======== */ #define H5P_STRCRT_CHAR_ENCODING_NAME "character_encoding" /* Character set encoding for string */ /* If the module using this macro is allowed access to the private variables, access them directly */ #ifdef H5P_MODULE #define H5P_PLIST_ID(P) ((P)->plist_id) #define H5P_CLASS(P) ((P)->pclass) #else /* H5P_MODULE */ #define H5P_PLIST_ID(P) (H5P_get_plist_id(P)) #define H5P_CLASS(P) (H5P_get_class(P)) #endif /* H5P_MODULE */ #define H5_COLL_MD_READ_FLAG_NAME "collective_metadata_read" /****************************/ /* Library Private Typedefs */ /****************************/ typedef enum H5P_coll_md_read_flag_t { H5P_FORCE_FALSE = -1, H5P_USER_FALSE = 0, H5P_USER_TRUE = 1 } H5P_coll_md_read_flag_t; /* Forward declarations (for prototypes & type definitions) */ struct H5O_fill_t; struct H5T_t; /* Forward declarations for anonymous H5P objects */ typedef struct H5P_genplist_t H5P_genplist_t; typedef struct H5P_genclass_t H5P_genclass_t; typedef enum H5P_plist_type_t { H5P_TYPE_USER = 0, H5P_TYPE_ROOT = 1, H5P_TYPE_OBJECT_CREATE = 2, H5P_TYPE_FILE_CREATE = 3, H5P_TYPE_FILE_ACCESS = 4, H5P_TYPE_DATASET_CREATE = 5, H5P_TYPE_DATASET_ACCESS = 6, H5P_TYPE_DATASET_XFER = 7, H5P_TYPE_FILE_MOUNT = 8, H5P_TYPE_GROUP_CREATE = 9, H5P_TYPE_GROUP_ACCESS = 10, H5P_TYPE_DATATYPE_CREATE = 11, H5P_TYPE_DATATYPE_ACCESS = 12, H5P_TYPE_STRING_CREATE = 13, H5P_TYPE_ATTRIBUTE_CREATE = 14, H5P_TYPE_OBJECT_COPY = 15, H5P_TYPE_LINK_CREATE = 16, H5P_TYPE_LINK_ACCESS = 17, H5P_TYPE_ATTRIBUTE_ACCESS = 18, H5P_TYPE_MAX_TYPE } H5P_plist_type_t; /* Function pointer for library classes with properties to register */ typedef herr_t (*H5P_reg_prop_func_t)(H5P_genclass_t *pclass); /* * Each library property list class has a variable of this type that contains * class variables and methods used to initialize the class. */ typedef struct H5P_libclass_t { const char *name; /* Class name */ H5P_plist_type_t type; /* Class type */ H5P_genclass_t * * par_pclass; /* Pointer to global parent class property list class */ H5P_genclass_t * * pclass; /* Pointer to global property list class */ hid_t * const class_id; /* Pointer to global property list class ID */ hid_t * const def_plist_id; /* Pointer to global default property list ID */ H5P_reg_prop_func_t reg_prop_func; /* Register class's properties */ /* Class callback function pointers & info */ H5P_cls_create_func_t create_func; /* Function to call when a property list is created */ void *create_data; /* Pointer to user data to pass along to create callback */ H5P_cls_copy_func_t copy_func; /* Function to call when a property list is copied */ void *copy_data; /* Pointer to user data to pass along to copy callback */ H5P_cls_close_func_t close_func; /* Function to call when a property list is closed */ void *close_data; /* Pointer to user data to pass along to close callback */ } H5P_libclass_t; /*****************************/ /* Library Private Variables */ /*****************************/ /* Predefined property list classes. */ H5_DLLVAR H5P_genclass_t *H5P_CLS_ROOT_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_OBJECT_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_FILE_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_FILE_ACCESS_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_DATASET_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_DATASET_ACCESS_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_DATASET_XFER_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_FILE_MOUNT_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_GROUP_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_GROUP_ACCESS_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_DATATYPE_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_DATATYPE_ACCESS_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_ATTRIBUTE_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_ATTRIBUTE_ACCESS_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_OBJECT_COPY_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_LINK_CREATE_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_LINK_ACCESS_g; H5_DLLVAR H5P_genclass_t *H5P_CLS_STRING_CREATE_g; /* Internal property list classes */ H5_DLLVAR const struct H5P_libclass_t H5P_CLS_LACC[1]; /* Link access */ H5_DLLVAR const struct H5P_libclass_t H5P_CLS_AACC[1]; /* Attribute access */ H5_DLLVAR const struct H5P_libclass_t H5P_CLS_DACC[1]; /* Dataset access */ H5_DLLVAR const struct H5P_libclass_t H5P_CLS_GACC[1]; /* Group access */ H5_DLLVAR const struct H5P_libclass_t H5P_CLS_TACC[1]; /* Named datatype access */ H5_DLLVAR const struct H5P_libclass_t H5P_CLS_FACC[1]; /* File access */ /******************************/ /* Library Private Prototypes */ /******************************/ /* Package initialization routine */ H5_DLL herr_t H5P_init(void); /* Internal versions of API routines */ H5_DLL herr_t H5P_close(void *_plist); H5_DLL hid_t H5P_create_id(H5P_genclass_t *pclass, hbool_t app_ref); H5_DLL hid_t H5P_copy_plist(const H5P_genplist_t *old_plist, hbool_t app_ref); H5_DLL herr_t H5P_get(H5P_genplist_t *plist, const char *name, void *value); H5_DLL herr_t H5P_set(H5P_genplist_t *plist, const char *name, const void *value); H5_DLL herr_t H5P_peek(H5P_genplist_t *plist, const char *name, void *value); H5_DLL herr_t H5P_poke(H5P_genplist_t *plist, const char *name, const void *value); H5_DLL herr_t H5P_insert(H5P_genplist_t *plist, const char *name, size_t size, void *value, H5P_prp_set_func_t prp_set, H5P_prp_get_func_t prp_get, H5P_prp_encode_func_t prp_encode, H5P_prp_decode_func_t prp_decode, H5P_prp_delete_func_t prp_delete, H5P_prp_copy_func_t prp_copy, H5P_prp_compare_func_t prp_cmp, H5P_prp_close_func_t prp_close); H5_DLL herr_t H5P_remove(H5P_genplist_t *plist, const char *name); H5_DLL htri_t H5P_exist_plist(const H5P_genplist_t *plist, const char *name); H5_DLL htri_t H5P_class_isa(const H5P_genclass_t *pclass1, const H5P_genclass_t *pclass2); H5_DLL char *H5P_get_class_name(H5P_genclass_t *pclass); /* Internal helper routines */ H5_DLL herr_t H5P_get_nprops_pclass(const H5P_genclass_t *pclass, size_t *nprops, hbool_t recurse); H5_DLL hid_t H5P_peek_driver(H5P_genplist_t *plist); H5_DLL const void *H5P_peek_driver_info(H5P_genplist_t *plist); H5_DLL herr_t H5P_set_driver(H5P_genplist_t *plist, hid_t new_driver_id, const void *new_driver_info); H5_DLL herr_t H5P_set_vlen_mem_manager(H5P_genplist_t *plist, H5MM_allocate_t alloc_func, void *alloc_info, H5MM_free_t free_func, void *free_info); H5_DLL herr_t H5P_is_fill_value_defined(const struct H5O_fill_t *fill, H5D_fill_value_t *status); H5_DLL int H5P_fill_value_cmp(const void *value1, const void *value2, size_t size); H5_DLL herr_t H5P_modify_filter(H5P_genplist_t *plist, H5Z_filter_t filter, unsigned flags, size_t cd_nelmts, const unsigned cd_values[]); H5_DLL herr_t H5P_get_filter_by_id(H5P_genplist_t *plist, H5Z_filter_t id, unsigned int *flags, size_t *cd_nelmts, unsigned cd_values[], size_t namelen, char name[], unsigned *filter_config); H5_DLL htri_t H5P_filter_in_pline(H5P_genplist_t *plist, H5Z_filter_t id); H5_DLL herr_t H5P_verify_apl_and_dxpl(hid_t *acspl_id, const H5P_libclass_t *libclass, hid_t *dxpl_id, hid_t loc_id, hbool_t is_collective); /* Query internal fields of the property list struct */ H5_DLL hid_t H5P_get_plist_id(const H5P_genplist_t *plist); H5_DLL H5P_genclass_t *H5P_get_class(const H5P_genplist_t *plist); /* *SPECIAL* Don't make more of these! -QAK */ H5_DLL htri_t H5P_isa_class(hid_t plist_id, hid_t pclass_id); H5_DLL H5P_genplist_t *H5P_object_verify(hid_t plist_id, hid_t pclass_id); /* Private DCPL routines */ H5_DLL herr_t H5P_fill_value_defined(H5P_genplist_t *plist, H5D_fill_value_t *status); H5_DLL herr_t H5P_get_fill_value(H5P_genplist_t *plist, const struct H5T_t *type, void *value, hid_t dxpl_id); #endif /* _H5Pprivate_H */ 'n33' href='#n33'>33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 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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.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* Programmer: 	Quincey Koziol <koziol@hdfgroup.org>
 *	       	Tuesday, January 27, 2009
 *
 * Purpose:	Extensible array indexed (chunked) I/O functions.  The chunks
 *              are given a single-dimensional index which is used as the
 *              offset in an extensible array that maps a chunk coordinate to
 *              a disk address.
 *
 */

/****************/
/* Module Setup */
/****************/

#include "H5Dmodule.h"          /* This source code file is part of the H5D module */


/***********/
/* Headers */
/***********/
#include "H5private.h"		/* Generic Functions			*/
#include "H5Dpkg.h"		/* Datasets				*/
#include "H5Eprivate.h"		/* Error handling		  	*/
#include "H5EAprivate.h"	/* Extensible arrays		  	*/
#include "H5FLprivate.h"	/* Free Lists                           */
#include "H5MFprivate.h"	/* File space management		*/
#include "H5VMprivate.h"        /* Vector functions			*/


/****************/
/* Local Macros */
/****************/

/* Value to fill unset array elements with */
#define H5D_EARRAY_FILL         HADDR_UNDEF
#define H5D_EARRAY_FILT_FILL    {HADDR_UNDEF, 0, 0}


/******************/
/* Local Typedefs */
/******************/

/* Extensible array create/open user data */
typedef struct H5D_earray_ctx_ud_t {
    const H5F_t *f;             /* Pointer to file info */
    uint32_t chunk_size;        /* Size of chunk (bytes) */
} H5D_earray_ctx_ud_t;

/* Extensible array callback context */
typedef struct H5D_earray_ctx_t {
    size_t file_addr_len;       /* Size of addresses in the file (bytes) */
    size_t chunk_size_len;      /* Size of chunk sizes in the file (bytes) */
} H5D_earray_ctx_t;

/* User data for chunk callbacks */
typedef struct H5D_earray_ud_t {
    H5F_t *f;                   /* File pointer for operation */
    hid_t dxpl_id;              /* DXPL ID for operation */
} H5D_earray_ud_t;

/* Extensible Array callback info for iteration over chunks */
typedef struct H5D_earray_it_ud_t {
    H5D_chunk_common_ud_t common;       /* Common info for Fixed Array user data (must be first) */
    H5D_chunk_rec_t     chunk_rec;      /* Generic chunk record for callback */
    hbool_t             filtered;       /* Whether the chunks are filtered */
    H5D_chunk_cb_func_t cb;             /* Chunk callback routine */
    void                *udata;         /* User data for chunk callback routine */
} H5D_earray_it_ud_t;

/* Native extensible array element for chunks w/filters */
typedef struct H5D_earray_filt_elmt_t {
    haddr_t addr;               /* Address of chunk */
    uint32_t nbytes;            /* Size of chunk (in file) */
    uint32_t filter_mask;       /* Excluded filters for chunk */
} H5D_earray_filt_elmt_t;


/********************/
/* Local Prototypes */
/********************/
/* Extensible array iterator callbacks */
static int H5D__earray_idx_iterate_cb(hsize_t idx, const void *_elmt, void *_udata);
static int H5D__earray_idx_delete_cb(const H5D_chunk_rec_t *chunk_rec, void *_udata);

/* Extensible array class callbacks for chunks w/o filters */
static void *H5D__earray_crt_context(void *udata);
static herr_t H5D__earray_dst_context(void *ctx);
static herr_t H5D__earray_fill(void *nat_blk, size_t nelmts);
static herr_t H5D__earray_encode(void *raw, const void *elmt, size_t nelmts,
    void *ctx);
static herr_t H5D__earray_decode(const void *raw, void *elmt, size_t nelmts,
    void *ctx);
static herr_t H5D__earray_debug(FILE *stream, int indent, int fwidth,
    hsize_t idx, const void *elmt);
static void *H5D__earray_crt_dbg_context(H5F_t *f, hid_t dxpl_id, haddr_t obj_addr);
static herr_t H5D__earray_dst_dbg_context(void *dbg_ctx);

/* Extensible array class callbacks for chunks w/filters */
/* (some shared with callbacks for chunks w/o filters) */
static herr_t H5D__earray_filt_fill(void *nat_blk, size_t nelmts);
static herr_t H5D__earray_filt_encode(void *raw, const void *elmt, size_t nelmts,
    void *ctx);
static herr_t H5D__earray_filt_decode(const void *raw, void *elmt, size_t nelmts,
    void *ctx);
static herr_t H5D__earray_filt_debug(FILE *stream, int indent, int fwidth,
    hsize_t idx, const void *elmt);

/* Chunked layout indexing callbacks */
static herr_t H5D__earray_idx_init(const H5D_chk_idx_info_t *idx_info,
    const H5S_t *space, haddr_t dset_ohdr_addr);
static herr_t H5D__earray_idx_create(const H5D_chk_idx_info_t *idx_info);
static hbool_t H5D__earray_idx_is_space_alloc(const H5O_storage_chunk_t *storage);
static herr_t H5D__earray_idx_insert(const H5D_chk_idx_info_t *idx_info,
    H5D_chunk_ud_t *udata, const H5D_t *dset);
static herr_t H5D__earray_idx_get_addr(const H5D_chk_idx_info_t *idx_info,
    H5D_chunk_ud_t *udata);
static herr_t H5D__earray_idx_resize(H5O_layout_chunk_t *layout);
static int H5D__earray_idx_iterate(const H5D_chk_idx_info_t *idx_info,
    H5D_chunk_cb_func_t chunk_cb, void *chunk_udata);
static herr_t H5D__earray_idx_remove(const H5D_chk_idx_info_t *idx_info,
    H5D_chunk_common_ud_t *udata);
static herr_t H5D__earray_idx_delete(const H5D_chk_idx_info_t *idx_info);
static herr_t H5D__earray_idx_copy_setup(const H5D_chk_idx_info_t *idx_info_src,
    const H5D_chk_idx_info_t *idx_info_dst);
static herr_t H5D__earray_idx_copy_shutdown(H5O_storage_chunk_t *storage_src,
    H5O_storage_chunk_t *storage_dst, hid_t dxpl_id);
static herr_t H5D__earray_idx_size(const H5D_chk_idx_info_t *idx_info,
    hsize_t *size);
static herr_t H5D__earray_idx_reset(H5O_storage_chunk_t *storage, hbool_t reset_addr);
static herr_t H5D__earray_idx_dump(const H5O_storage_chunk_t *storage,
    FILE *stream);
static herr_t H5D__earray_idx_dest(const H5D_chk_idx_info_t *idx_info);

/* Generic extensible array routines */
static herr_t H5D__earray_idx_open(const H5D_chk_idx_info_t *idx_info);
static herr_t H5D__earray_idx_depend(const H5D_chk_idx_info_t *idx_info);


/*********************/
/* Package Variables */
/*********************/

/* Extensible array indexed chunk I/O ops */
const H5D_chunk_ops_t H5D_COPS_EARRAY[1] = {{
    TRUE,                               /* Extensible array indices support SWMR access */
    H5D__earray_idx_init,               /* init */
    H5D__earray_idx_create,             /* create */
    H5D__earray_idx_is_space_alloc,     /* is_space_alloc */
    H5D__earray_idx_insert,             /* insert */
    H5D__earray_idx_get_addr,           /* get_addr */
    H5D__earray_idx_resize,             /* resize */
    H5D__earray_idx_iterate,            /* iterate */
    H5D__earray_idx_remove,             /* remove */
    H5D__earray_idx_delete,             /* delete */
    H5D__earray_idx_copy_setup,         /* copy_setup */
    H5D__earray_idx_copy_shutdown,      /* copy_shutdown */
    H5D__earray_idx_size,               /* size */
    H5D__earray_idx_reset,              /* reset */
    H5D__earray_idx_dump,               /* dump */
    H5D__earray_idx_dest                /* destroy */
}};


/*****************************/
/* Library Private Variables */
/*****************************/

/* Extensible array class callbacks for dataset chunks w/o filters */
const H5EA_class_t H5EA_CLS_CHUNK[1]={{
    H5EA_CLS_CHUNK_ID,          /* Type of extensible array */
    "Chunk w/o filters",        /* Name of extensible array class */
    sizeof(haddr_t),            /* Size of native element */
    H5D__earray_crt_context,    /* Create context */
    H5D__earray_dst_context,    /* Destroy context */
    H5D__earray_fill,           /* Fill block of missing elements callback */
    H5D__earray_encode,         /* Element encoding callback */
    H5D__earray_decode,         /* Element decoding callback */
    H5D__earray_debug,		/* Element debugging callback */
    H5D__earray_crt_dbg_context, /* Create debugging context */
    H5D__earray_dst_dbg_context  /* Destroy debugging context */
}};

/* Extensible array class callbacks for dataset chunks w/filters */
const H5EA_class_t H5EA_CLS_FILT_CHUNK[1]={{
    H5EA_CLS_FILT_CHUNK_ID,     /* Type of extensible array */
    "Chunk w/filters",          /* Name of extensible array class */
    sizeof(H5D_earray_filt_elmt_t), /* Size of native element */
    H5D__earray_crt_context,    /* Create context */
    H5D__earray_dst_context,    /* Destroy context */
    H5D__earray_filt_fill,      /* Fill block of missing elements callback */
    H5D__earray_filt_encode,    /* Element encoding callback */
    H5D__earray_filt_decode,    /* Element decoding callback */
    H5D__earray_filt_debug,     /* Element debugging callback */
    H5D__earray_crt_dbg_context, /* Create debugging context */
    H5D__earray_dst_dbg_context  /* Destroy debugging context */
}};


/*******************/
/* Local Variables */
/*******************/

/* Declare a free list to manage the H5D_earray_ctx_t struct */
/* Declare a free list to manage the H5D_earray_ctx_ud_t struct */
H5FL_DEFINE_STATIC(H5D_earray_ctx_t);
H5FL_DEFINE_STATIC(H5D_earray_ctx_ud_t);



/*-------------------------------------------------------------------------
 * Function:	H5D__earray_crt_context
 *
 * Purpose:	Create context for callbacks
 *
 * Return:	Success:	non-NULL
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static void *
H5D__earray_crt_context(void *_udata)
{
    H5D_earray_ctx_t *ctx;      /* Extensible array callback context */
    H5D_earray_ctx_ud_t *udata = (H5D_earray_ctx_ud_t *)_udata; /* User data for extensible array context */
    void *ret_value = NULL;     /* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(udata);
    HDassert(udata->f);
    HDassert(udata->chunk_size > 0);

    /* Allocate new context structure */
    if(NULL == (ctx = H5FL_MALLOC(H5D_earray_ctx_t)))
        HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, NULL, "can't allocate extensible array client callback context")

    /* Initialize the context */
    ctx->file_addr_len = H5F_SIZEOF_ADDR(udata->f);

    /* Compute the size required for encoding the size of a chunk, allowing
     *      for an extra byte, in case the filter makes the chunk larger.
     */
    ctx->chunk_size_len = 1 + ((H5VM_log2_gen((uint64_t)udata->chunk_size) + 8) / 8);
    if(ctx->chunk_size_len > 8)
        ctx->chunk_size_len = 8;

    /* Set return value */
    ret_value = ctx;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_crt_context() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_dst_context
 *
 * Purpose:	Destroy context for callbacks
 *
 * Return:	Success:	non-NULL
 *		Failure:	NULL
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_dst_context(void *_ctx)
{
    H5D_earray_ctx_t *ctx = (H5D_earray_ctx_t *)_ctx;   /* Extensible array callback context */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(ctx);

    /* Release context structure */
    ctx = H5FL_FREE(H5D_earray_ctx_t, ctx);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_dst_context() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_fill
 *
 * Purpose:	Fill "missing elements" in block of elements
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Tuesday, January 27, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_fill(void *nat_blk, size_t nelmts)
{
    haddr_t fill_val = H5D_EARRAY_FILL;          /* Value to fill elements with */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(nat_blk);
    HDassert(nelmts);

    H5VM_array_fill(nat_blk, &fill_val, H5EA_CLS_CHUNK->nat_elmt_size, nelmts);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_fill() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_encode
 *
 * Purpose:	Encode an element from "native" to "raw" form
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Tuesday, January 27, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_encode(void *raw, const void *_elmt, size_t nelmts, void *_ctx)
{
    H5D_earray_ctx_t *ctx = (H5D_earray_ctx_t *)_ctx;   /* Extensible array callback context */
    const haddr_t *elmt = (const haddr_t *)_elmt;     /* Convenience pointer to native elements */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(raw);
    HDassert(elmt);
    HDassert(nelmts);
    HDassert(ctx);

    /* Encode native elements into raw elements */
    while(nelmts) {
        /* Encode element */
        /* (advances 'raw' pointer) */
        H5F_addr_encode_len(ctx->file_addr_len, (uint8_t **)&raw, *elmt);

        /* Advance native element pointer */
        elmt++;

        /* Decrement # of elements to encode */
        nelmts--;
    } /* end while */

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_encode() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_decode
 *
 * Purpose:	Decode an element from "raw" to "native" form
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_decode(const void *_raw, void *_elmt, size_t nelmts, void *_ctx)
{
    H5D_earray_ctx_t *ctx = (H5D_earray_ctx_t *)_ctx;   /* Extensible array callback context */
    haddr_t *elmt = (haddr_t *)_elmt;           /* Convenience pointer to native elements */
    const uint8_t *raw = (const uint8_t *)_raw; /* Convenience pointer to raw elements */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(raw);
    HDassert(elmt);
    HDassert(nelmts);

    /* Decode raw elements into native elements */
    while(nelmts) {
        /* Decode element */
        /* (advances 'raw' pointer) */
        H5F_addr_decode_len(ctx->file_addr_len, &raw, elmt);

        /* Advance native element pointer */
        elmt++;

        /* Decrement # of elements to decode */
        nelmts--;
    } /* end while */

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_decode() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_debug
 *
 * Purpose:	Display an element for debugging
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_debug(FILE *stream, int indent, int fwidth, hsize_t idx,
    const void *elmt)
{
    char temp_str[128];     /* Temporary string, for formatting */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(stream);
    HDassert(elmt);

    /* Print element */
    sprintf(temp_str, "Element #%llu:", (unsigned long long)idx);
    HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth, temp_str,
        *(const haddr_t *)elmt);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_debug() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_filt_fill
 *
 * Purpose:	Fill "missing elements" in block of elements
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_filt_fill(void *nat_blk, size_t nelmts)
{
    H5D_earray_filt_elmt_t fill_val = H5D_EARRAY_FILT_FILL;     /* Value to fill elements with */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(nat_blk);
    HDassert(nelmts);
    HDassert(sizeof(fill_val) == H5EA_CLS_FILT_CHUNK->nat_elmt_size);

    H5VM_array_fill(nat_blk, &fill_val, H5EA_CLS_FILT_CHUNK->nat_elmt_size, nelmts);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_filt_fill() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_filt_encode
 *
 * Purpose:	Encode an element from "native" to "raw" form
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_filt_encode(void *_raw, const void *_elmt, size_t nelmts, void *_ctx)
{
    H5D_earray_ctx_t *ctx = (H5D_earray_ctx_t *)_ctx;   /* Extensible array callback context */
    uint8_t *raw = (uint8_t *)_raw;             /* Convenience pointer to raw elements */
    const H5D_earray_filt_elmt_t *elmt = (const H5D_earray_filt_elmt_t *)_elmt;     /* Convenience pointer to native elements */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(raw);
    HDassert(elmt);
    HDassert(nelmts);
    HDassert(ctx);

    /* Encode native elements into raw elements */
    while(nelmts) {
        /* Encode element */
        /* (advances 'raw' pointer) */
        H5F_addr_encode_len(ctx->file_addr_len, &raw, elmt->addr);
        UINT64ENCODE_VAR(raw, elmt->nbytes, ctx->chunk_size_len);
        UINT32ENCODE(raw, elmt->filter_mask);

        /* Advance native element pointer */
        elmt++;

        /* Decrement # of elements to encode */
        nelmts--;
    } /* end while */

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_filt_encode() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_filt_decode
 *
 * Purpose:	Decode an element from "raw" to "native" form
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_filt_decode(const void *_raw, void *_elmt, size_t nelmts, void *_ctx)
{
    H5D_earray_ctx_t *ctx = (H5D_earray_ctx_t *)_ctx;   /* Extensible array callback context */
    H5D_earray_filt_elmt_t *elmt = (H5D_earray_filt_elmt_t *)_elmt;           /* Convenience pointer to native elements */
    const uint8_t *raw = (const uint8_t *)_raw; /* Convenience pointer to raw elements */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(raw);
    HDassert(elmt);
    HDassert(nelmts);

    /* Decode raw elements into native elements */
    while(nelmts) {
        /* Decode element */
        /* (advances 'raw' pointer) */
        H5F_addr_decode_len(ctx->file_addr_len, &raw, &elmt->addr);
        UINT64DECODE_VAR(raw, elmt->nbytes, ctx->chunk_size_len);
        UINT32DECODE(raw, elmt->filter_mask);

        /* Advance native element pointer */
        elmt++;

        /* Decrement # of elements to decode */
        nelmts--;
    } /* end while */

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_filt_decode() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_filt_debug
 *
 * Purpose:	Display an element for debugging
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_filt_debug(FILE *stream, int indent, int fwidth, hsize_t idx,
    const void *_elmt)
{
    const H5D_earray_filt_elmt_t *elmt = (const H5D_earray_filt_elmt_t *)_elmt;           /* Convenience pointer to native elements */
    char temp_str[128];     /* Temporary string, for formatting */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(stream);
    HDassert(elmt);

    /* Print element */
    sprintf(temp_str, "Element #%llu:", (unsigned long long)idx);
    HDfprintf(stream, "%*s%-*s {%a, %u, %0x}\n", indent, "", fwidth, temp_str,
        elmt->addr, elmt->nbytes, elmt->filter_mask);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_filt_debug() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_crt_dbg_context
 *
 * Purpose:	Create context for debugging callback
 *		(get the layout message in the specified object header)
 *
 * Return:	Success:	non-NULL
 *		Failure:	NULL
 *
 * Programmer:	Vailin Choi; July 2010
 *		
 *-------------------------------------------------------------------------
 */
static void *
H5D__earray_crt_dbg_context(H5F_t *f, hid_t dxpl_id, haddr_t obj_addr)
{
    H5D_earray_ctx_ud_t	*dbg_ctx = NULL;   /* Context for fixed array callback */
    H5O_loc_t obj_loc;          /* Pointer to an object's location */
    hbool_t obj_opened = FALSE; /* Flag to indicate that the object header was opened */
    H5O_layout_t layout;        /* Layout message */
    void *ret_value = NULL;     /* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(f);
    HDassert(H5F_addr_defined(obj_addr));

    /* Allocate context for debugging callback */
    if(NULL == (dbg_ctx = H5FL_MALLOC(H5D_earray_ctx_ud_t)))
        HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, NULL, "can't allocate extensible array client callback context")

    /* Set up the object header location info */
    H5O_loc_reset(&obj_loc);
    obj_loc.file = f;
    obj_loc.addr = obj_addr;

    /* Open the object header where the layout message resides */
    if(H5O_open(&obj_loc) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, NULL, "can't open object header")
    obj_opened = TRUE;

    /* Read the layout message */
    if(NULL == H5O_msg_read(&obj_loc, H5O_LAYOUT_ID, &layout, dxpl_id))
        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, NULL, "can't get layout info")

    /* close the object header */
    if(H5O_close(&obj_loc, NULL) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, NULL, "can't close object header")

    /* Create user data */
    dbg_ctx->f = f;
    dbg_ctx->chunk_size = layout.u.chunk.size;

    /* Set return value */
    ret_value = dbg_ctx;

done:
    /* Cleanup on error */
    if(ret_value == NULL) {
        /* Release context structure */
        if(dbg_ctx)
            dbg_ctx = H5FL_FREE(H5D_earray_ctx_ud_t, dbg_ctx);

        /* Close object header */
        if(obj_opened) {
            if(H5O_close(&obj_loc, NULL) < 0)
                HDONE_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, NULL, "can't close object header")
        } /* end if */
    } /* end if */

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_crt_dbg_context() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_dst_dbg_context
 *
 * Purpose:	Destroy context for debugging callback
 *		(free the layout message from the specified object header)
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Vailin Choi; July 2010
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_dst_dbg_context(void *_dbg_ctx)
{
    H5D_earray_ctx_ud_t	*dbg_ctx = (H5D_earray_ctx_ud_t	*)_dbg_ctx; /* Context for extensible array callback */

    FUNC_ENTER_STATIC_NOERR

    /* Sanity checks */
    HDassert(dbg_ctx);

    /* Release context structure */
    dbg_ctx = H5FL_FREE(H5D_earray_ctx_ud_t, dbg_ctx);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_dst_dbg_context() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_depend
 *
 * Purpose:	Create flush dependency between extensible array and dataset's
 *              object header.
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *		Tuesday, June  2, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_depend(const H5D_chk_idx_info_t *idx_info)
{
    H5O_t *oh = NULL;                   /* Object header */
    H5O_loc_t oloc;                     /* Temporary object header location for dataset */
    H5AC_proxy_entry_t *oh_proxy;       /* Dataset's object header proxy */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(H5D_CHUNK_IDX_EARRAY == idx_info->layout->idx_type);
    HDassert(idx_info->storage);
    HDassert(H5D_CHUNK_IDX_EARRAY == idx_info->storage->idx_type);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(idx_info->storage->u.earray.ea);

    /* Set up object header location for dataset */
    H5O_loc_reset(&oloc);
    oloc.file = idx_info->f;
    oloc.addr = idx_info->storage->u.earray.dset_ohdr_addr;

    /* Get header */
    if(NULL == (oh = H5O_protect(&oloc, idx_info->dxpl_id, H5AC__READ_ONLY_FLAG, TRUE)))
        HGOTO_ERROR(H5E_DATASET, H5E_CANTPROTECT, FAIL, "unable to protect object header")

    /* Retrieve the dataset's object header proxy */
    if(NULL == (oh_proxy = H5O_get_proxy(oh)))
        HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "unable to get dataset object header proxy")

    /* Make the extensible array a child flush dependency of the dataset's object header */
    if(H5EA_depend(idx_info->storage->u.earray.ea, idx_info->dxpl_id, oh_proxy) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTDEPEND, FAIL, "unable to create flush dependency on object header proxy")

done:
    /* Release the object header from the cache */
    if(oh && H5O_unprotect(&oloc, idx_info->dxpl_id, oh, H5AC__NO_FLAGS_SET) < 0)
        HDONE_ERROR(H5E_DATASET, H5E_CANTUNPROTECT, FAIL, "unable to release object header")

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_depend() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_open
 *
 * Purpose:	Opens an existing extensible array.
 *
 * Note:	This information is passively initialized from each index
 *              operation callback because those abstract chunk index operations
 *              are designed to work with the v1 B-tree chunk indices also,
 *              which don't require an 'open' for the data structure.
 *
 * Return:	Success:	non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *		Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_open(const H5D_chk_idx_info_t *idx_info)
{
    H5D_earray_ctx_ud_t udata;          /* User data for extensible array open call */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(H5D_CHUNK_IDX_EARRAY == idx_info->layout->idx_type);
    HDassert(idx_info->storage);
    HDassert(H5D_CHUNK_IDX_EARRAY == idx_info->storage->idx_type);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(NULL == idx_info->storage->u.earray.ea);

    /* Set up the user data */
    udata.f = idx_info->f;
    udata.chunk_size = idx_info->layout->size;

    /* Open the extensible array for the chunk index */
    if(NULL == (idx_info->storage->u.earray.ea = H5EA_open(idx_info->f, idx_info->dxpl_id, idx_info->storage->idx_addr, &udata)))
	HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "can't open extensible array")

    /* Check for SWMR writes to the file */
    if(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)
        if(H5D__earray_idx_depend(idx_info) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTDEPEND, FAIL, "unable to create flush dependency on object header")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_open() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_init
 *
 * Purpose:	Initialize the indexing information for a dataset.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Wednesday, May 27, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_init(const H5D_chk_idx_info_t *idx_info, const H5S_t *space,
    haddr_t dset_ohdr_addr)
{
    hsize_t max_dims[H5O_LAYOUT_NDIMS];    /* Max. size of dataset dimensions */
    int unlim_dim;              /* Rank of the dataset's unlimited dimension */
    int sndims;                 /* Rank of dataspace */
    unsigned ndims;             /* Rank of dataspace */
    unsigned u;                 /* Local index variable */
    herr_t ret_value = SUCCEED; /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(space);
    HDassert(H5F_addr_defined(dset_ohdr_addr));

    /* Get the dim info for dataset */
    if((sndims = H5S_get_simple_extent_dims(space, NULL, max_dims)) < 0)
	HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get dataspace dimensions")
    H5_CHECKED_ASSIGN(ndims, unsigned, sndims, int);

    /* Find the rank of the unlimited dimension */
    unlim_dim = (-1);
    for(u = 0; u < ndims; u++) {
        /* Check for unlimited dimension */
        if(H5S_UNLIMITED == max_dims[u]) {
            /* Check if we've already found an unlimited dimension */
            if(unlim_dim >= 0)
                HGOTO_ERROR(H5E_DATASET, H5E_ALREADYINIT, FAIL, "already found unlimited dimension")

            /* Set the unlimited dimension */
            unlim_dim = (int)u;
        } /* end if */
    } /* end for */

    /* Check if we didn't find an unlimited dimension */
    if(unlim_dim < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_UNINITIALIZED, FAIL, "didn't find unlimited dimension")

    /* Set the unlimited dimension for the layout's future use */
    idx_info->layout->u.earray.unlim_dim = (unsigned)unlim_dim;

    /* Store the dataset's object header address for later */
    idx_info->storage->u.earray.dset_ohdr_addr = dset_ohdr_addr;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_init() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_create
 *
 * Purpose:	Creates a new indexed-storage extensible array and initializes
 *              the layout struct with information about the storage.  The
 *		struct should be immediately written to the object header.
 *
 *		This function must be called before passing LAYOUT to any of
 *		the other indexed storage functions!
 *
 * Return:	Non-negative on success (with the LAYOUT argument initialized
 *		and ready to write to an object header). Negative on failure.
 *
 * Programmer:	Quincey Koziol
 *		Tuesday, January 27, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_create(const H5D_chk_idx_info_t *idx_info)
{
    H5EA_create_t cparam;               /* Extensible array creation parameters */
    H5D_earray_ctx_ud_t udata;          /* User data for extensible array create call */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(!H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(NULL == idx_info->storage->u.earray.ea);

    /* General parameters */
    if(idx_info->pline->nused > 0) {
        unsigned chunk_size_len;        /* Size of encoded chunk size */
        
        /* Compute the size required for encoding the size of a chunk, allowing
         *      for an extra byte, in case the filter makes the chunk larger.
         */
        chunk_size_len = 1 + ((H5VM_log2_gen((uint64_t)idx_info->layout->size) + 8) / 8);
        if(chunk_size_len > 8)
            chunk_size_len = 8;

        cparam.cls = H5EA_CLS_FILT_CHUNK;
        cparam.raw_elmt_size = (uint8_t)(H5F_SIZEOF_ADDR(idx_info->f) + chunk_size_len + 4);
    } /* end if */
    else {
        cparam.cls = H5EA_CLS_CHUNK;
        cparam.raw_elmt_size = (uint8_t)H5F_SIZEOF_ADDR(idx_info->f);
    } /* end else */
    cparam.max_nelmts_bits = idx_info->layout->u.earray.cparam.max_nelmts_bits;
    HDassert(cparam.max_nelmts_bits > 0);
    cparam.idx_blk_elmts = idx_info->layout->u.earray.cparam.idx_blk_elmts;
    HDassert(cparam.idx_blk_elmts > 0);
    cparam.sup_blk_min_data_ptrs = idx_info->layout->u.earray.cparam.sup_blk_min_data_ptrs;
    HDassert(cparam.sup_blk_min_data_ptrs > 0);
    cparam.data_blk_min_elmts = idx_info->layout->u.earray.cparam.data_blk_min_elmts;
    HDassert(cparam.data_blk_min_elmts > 0);
    cparam.max_dblk_page_nelmts_bits = idx_info->layout->u.earray.cparam.max_dblk_page_nelmts_bits;
    HDassert(cparam.max_dblk_page_nelmts_bits > 0);

    /* Set up the user data */
    udata.f = idx_info->f;
    udata.chunk_size = idx_info->layout->size;

    /* Create the extensible array for the chunk index */
    if(NULL == (idx_info->storage->u.earray.ea = H5EA_create(idx_info->f, idx_info->dxpl_id, &cparam, &udata)))
	HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "can't create extensible array")

    /* Get the address of the extensible array in file */
    if(H5EA_get_addr(idx_info->storage->u.earray.ea, &(idx_info->storage->idx_addr)) < 0)
	HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't query extensible array address")

    /* Check for SWMR writes to the file */
    if(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)
        if(H5D__earray_idx_depend(idx_info) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTDEPEND, FAIL, "unable to create flush dependency on object header")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_create() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_is_space_alloc
 *
 * Purpose:	Query if space is allocated for index method
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *		Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static hbool_t
H5D__earray_idx_is_space_alloc(const H5O_storage_chunk_t *storage)
{
    FUNC_ENTER_STATIC_NOERR

    /* Check args */
    HDassert(storage);

    FUNC_LEAVE_NOAPI((hbool_t)H5F_addr_defined(storage->idx_addr))
} /* end H5D__earray_idx_is_space_alloc() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_insert
 *
 * Purpose:	Insert chunk address into the indexing structure.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Vailin Choi; May 2014
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_insert(const H5D_chk_idx_info_t *idx_info, H5D_chunk_ud_t *udata,
    const H5D_t H5_ATTR_UNUSED *dset)
{
    H5EA_t      *ea;                    /* Pointer to extensible array structure */
    herr_t	ret_value = SUCCEED;	/* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(udata);

    /* Check if the extensible array is open yet */
    if(NULL == idx_info->storage->u.earray.ea) {
        /* Open the extensible array in file */
        if(H5D__earray_idx_open(idx_info) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't open extensible array")
     } else  /* Patch the top level file pointer contained in ea if needed */
        H5EA_patch_file(idx_info->storage->u.earray.ea, idx_info->f);

    /* Set convenience pointer to extensible array structure */
    ea = idx_info->storage->u.earray.ea;

    if(!H5F_addr_defined(udata->chunk_block.offset))
	HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "The chunk should have allocated already")
    if(udata->chunk_idx != (udata->chunk_idx & 0xffffffff)) /* negative value */
	HGOTO_ERROR(H5E_ARGS, H5E_BADRANGE, FAIL, "chunk index must be less than 2^32")

    /* Check for filters on chunks */
    if(idx_info->pline->nused > 0) {
	H5D_earray_filt_elmt_t elmt;            /* Extensible array element */

	elmt.addr = udata->chunk_block.offset;
        H5_CHECKED_ASSIGN(elmt.nbytes, uint32_t, udata->chunk_block.length, hsize_t);
	elmt.filter_mask = udata->filter_mask;

	/* Set the info for the chunk */
	if(H5EA_set(ea, idx_info->dxpl_id, udata->chunk_idx, &elmt) < 0)
	    HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't set chunk info")
    } /* end if */
    else {
	/* Set the address for the chunk */
	if(H5EA_set(ea, idx_info->dxpl_id, udata->chunk_idx, &udata->chunk_block.offset) < 0)
	    HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't set chunk address")
    } /* end else */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5D__earray_idx_insert() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_get_addr
 *
 * Purpose:	Get the file address of a chunk if file space has been
 *		assigned.  Save the retrieved information in the udata
 *		supplied.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_get_addr(const H5D_chk_idx_info_t *idx_info, H5D_chunk_ud_t *udata)
{
    H5EA_t      *ea;                    /* Pointer to extensible array structure */
    hsize_t     idx;                    /* Array index of chunk */
    herr_t	ret_value = SUCCEED;	/* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(udata);

    /* Check if the extensible array is open yet */
    if(NULL == idx_info->storage->u.earray.ea) {
        /* Open the extensible array in file */
        if(H5D__earray_idx_open(idx_info) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't open extensible array")
     } else  /* Patch the top level file pointer contained in ea if needed */
        H5EA_patch_file(idx_info->storage->u.earray.ea, idx_info->f);

    /* Set convenience pointer to extensible array structure */
    ea = idx_info->storage->u.earray.ea;

    /* Check for unlimited dim. not being the slowest-changing dim. */
    if(idx_info->layout->u.earray.unlim_dim > 0) {
        hsize_t swizzled_coords[H5O_LAYOUT_NDIMS];	/* swizzled chunk coordinates */
        unsigned ndims = (idx_info->layout->ndims - 1); /* Number of dimensions */
	unsigned u;

	/* Compute coordinate offset from scaled offset */
	for(u = 0; u < ndims; u++)
	    swizzled_coords[u] = udata->common.scaled[u] * idx_info->layout->dim[u];

        H5VM_swizzle_coords(hsize_t, swizzled_coords, idx_info->layout->u.earray.unlim_dim);

        /* Calculate the index of this chunk */
        idx = H5VM_chunk_index(ndims, swizzled_coords, idx_info->layout->u.earray.swizzled_dim, idx_info->layout->u.earray.swizzled_max_down_chunks);
    } /* end if */
    else {
        /* Calculate the index of this chunk */
        idx = H5VM_array_offset_pre((idx_info->layout->ndims - 1), idx_info->layout->max_down_chunks, udata->common.scaled);
    } /* end else */

    udata->chunk_idx = idx;

    /* Check for filters on chunks */
    if(idx_info->pline->nused > 0) {
        H5D_earray_filt_elmt_t elmt;            /* Extensible array element */

        /* Get the information for the chunk */
        if(H5EA_get(ea, idx_info->dxpl_id, idx, &elmt) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk info")

        /* Set the info for the chunk */
        udata->chunk_block.offset = elmt.addr;
        udata->chunk_block.length = elmt.nbytes;
        udata->filter_mask = elmt.filter_mask;
    } /* end if */
    else {
        /* Get the address for the chunk */
        if(H5EA_get(ea, idx_info->dxpl_id, idx, &udata->chunk_block.offset) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk address")

        /* Update the other (constant) information for the chunk */
	udata->chunk_block.length = idx_info->layout->size;
        udata->filter_mask = 0;
    } /* end else */

    if(!H5F_addr_defined(udata->chunk_block.offset))
	udata->chunk_block.length = 0;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5D__earray_idx_get_addr() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_resize
 *
 * Purpose:	Calculate/setup the swizzled down chunk array, used for chunk
 *              index calculations.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Thursday, July 23, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_resize(H5O_layout_chunk_t *layout)
{
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(layout);

    /* "Swizzle" constant dimensions for this dataset */
    if(layout->u.earray.unlim_dim > 0) {
        hsize_t swizzled_chunks[H5O_LAYOUT_NDIMS];      /* Swizzled form of # of chunks in each dimension */
        hsize_t swizzled_max_chunks[H5O_LAYOUT_NDIMS];  /* Swizzled form of max # of chunks in each dimension */

        /* Get the swizzled chunk dimensions */
        HDmemcpy(layout->u.earray.swizzled_dim, layout->dim, (layout->ndims - 1) * sizeof(layout->dim[0]));
        H5VM_swizzle_coords(uint32_t, layout->u.earray.swizzled_dim, layout->u.earray.unlim_dim);

        /* Get the swizzled number of chunks in each dimension */
        HDmemcpy(swizzled_chunks, layout->chunks, (layout->ndims - 1) * sizeof(swizzled_chunks[0]));
        H5VM_swizzle_coords(hsize_t, swizzled_chunks, layout->u.earray.unlim_dim);

        /* Get the swizzled "down" sizes for each dimension */
        if(H5VM_array_down((layout->ndims - 1), swizzled_chunks, layout->u.earray.swizzled_down_chunks) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't compute swizzled 'down' chunk size value")

        /* Get the swizzled max number of chunks in each dimension */
        HDmemcpy(swizzled_max_chunks, layout->max_chunks, (layout->ndims - 1) * sizeof(swizzled_max_chunks[0]));
        H5VM_swizzle_coords(hsize_t, swizzled_max_chunks, layout->u.earray.unlim_dim);

        /* Get the swizzled max "down" sizes for each dimension */
        if(H5VM_array_down((layout->ndims - 1), swizzled_max_chunks, layout->u.earray.swizzled_max_down_chunks) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't compute swizzled 'down' chunk size value")
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_resize() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_iterate_cb
 *
 * Purpose:	Callback routine for extensible array element iteration.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Vailin Choi; Feb 2015
 *
 *-------------------------------------------------------------------------
 */
static int
H5D__earray_idx_iterate_cb(hsize_t H5_ATTR_UNUSED idx, const void *_elmt, void *_udata)
{
    H5D_earray_it_ud_t   *udata = (H5D_earray_it_ud_t *)_udata; /* User data */
    unsigned ndims;                 /* Rank of chunk */
    int curr_dim;                   /* Current dimension */
    int ret_value = H5_ITER_CONT;   /* Return value */

    FUNC_ENTER_STATIC_NOERR

    /* Compose generic chunk record for callback */
    if(udata->filtered) {
        const H5D_earray_filt_elmt_t *filt_elmt = (const H5D_earray_filt_elmt_t *)_elmt;

        udata->chunk_rec.chunk_addr = filt_elmt->addr;
        udata->chunk_rec.nbytes = filt_elmt->nbytes;
        udata->chunk_rec.filter_mask = filt_elmt->filter_mask;
    } /* end if */
    else
        udata->chunk_rec.chunk_addr = *(const haddr_t *)_elmt;

    /* Make "generic chunk" callback */
    if(H5F_addr_defined(udata->chunk_rec.chunk_addr))
	if((ret_value = (udata->cb)(&udata->chunk_rec, udata->udata)) < 0)
	    HERROR(H5E_DATASET, H5E_CALLBACK, "failure in generic chunk iterator callback");

    /* Update coordinates of chunk in dataset */
    ndims = udata->common.layout->ndims - 1;
    HDassert(ndims > 0);
    curr_dim = (int)(ndims - 1);
    while(curr_dim >= 0) {
        /* Increment coordinate in current dimension */
        udata->chunk_rec.scaled[curr_dim]++;

        /* Check if we went off the end of the current dimension */
        if(udata->chunk_rec.scaled[curr_dim] >= udata->common.layout->max_chunks[curr_dim]) {
            /* Reset coordinate & move to next faster dimension */
            udata->chunk_rec.scaled[curr_dim] = 0;
            curr_dim--;
        } /* end if */
        else
            break;
    } /* end while */

    FUNC_LEAVE_NOAPI(ret_value)
} /* H5D__earray_idx_iterate_cb() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_iterate
 *
 * Purpose:	Iterate over the chunks in an index, making a callback
 *              for each one.
 *
 * Note:	This implementation is slow, particularly for sparse
 *              extensible arrays, replace it with call to H5EA_iterate()
 *              when that's available.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static int
H5D__earray_idx_iterate(const H5D_chk_idx_info_t *idx_info,
    H5D_chunk_cb_func_t chunk_cb, void *chunk_udata)
{
    H5EA_t      *ea;            /* Pointer to extensible array structure */
    H5EA_stat_t ea_stat;        /* Extensible array statistics */
    int ret_value = H5_ITER_CONT;       /* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(chunk_cb);
    HDassert(chunk_udata);

    /* Check if the extensible array is open yet */
    if(NULL == idx_info->storage->u.earray.ea) {
        /* Open the extensible array in file */
        if(H5D__earray_idx_open(idx_info) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't open extensible array")
     } else  /* Patch the top level file pointer contained in ea if needed */
        H5EA_patch_file(idx_info->storage->u.earray.ea, idx_info->f);

    /* Set convenience pointer to extensible array structure */
    ea = idx_info->storage->u.earray.ea;

    /* Get the extensible array statistics */
    if(H5EA_get_stats(ea, &ea_stat) < 0)
	HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't query extensible array statistics")

    if(ea_stat.stored.max_idx_set > 0) {
        H5D_earray_it_ud_t udata;   /* User data for iteration callback */

	/* Initialize userdata */
	HDmemset(&udata, 0, sizeof udata);
	udata.common.layout = idx_info->layout;
	udata.common.storage = idx_info->storage;
        HDmemset(&udata.chunk_rec, 0, sizeof(udata.chunk_rec));
        udata.filtered = (idx_info->pline->nused > 0);
        if(!udata.filtered) {
            udata.chunk_rec.nbytes = idx_info->layout->size;
            udata.chunk_rec.filter_mask = 0;
        } /* end if */
	udata.cb = chunk_cb;
	udata.udata = chunk_udata;
	
        /* Iterate over the extensible array elements */
	if((ret_value = H5EA_iterate(ea, idx_info->dxpl_id, H5D__earray_idx_iterate_cb, &udata)) < 0)
	    HERROR(H5E_DATASET, H5E_BADITER, "unable to iterate over fixed array chunk index");
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_iterate() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_remove
 *
 * Purpose:	Remove chunk from index.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_remove(const H5D_chk_idx_info_t *idx_info, H5D_chunk_common_ud_t *udata)
{
    H5EA_t      *ea;                    /* Pointer to extensible array structure */
    hsize_t     idx;                    /* Array index of chunk */
    herr_t	ret_value = SUCCEED;	/* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(udata);

    /* Check if the extensible array is open yet */
    if(NULL == idx_info->storage->u.earray.ea) {
        /* Open the extensible array in file */
        if(H5D__earray_idx_open(idx_info) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't open extensible array")
    } else  /* Patch the top level file pointer contained in ea if needed */
        if(H5EA_patch_file(idx_info->storage->u.earray.ea, idx_info->f) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't patch earray file pointer")

    /* Set convenience pointer to extensible array structure */
    ea = idx_info->storage->u.earray.ea;

    /* Check for unlimited dim. not being the slowest-changing dim. */
    if(idx_info->layout->u.earray.unlim_dim > 0) {
        hsize_t swizzled_coords[H5O_LAYOUT_NDIMS];	/* swizzled chunk coordinates */
        unsigned ndims = (idx_info->layout->ndims - 1); /* Number of dimensions */
	unsigned u;

	/* Compute coordinate offset from scaled offset */
	for(u = 0; u < ndims; u++)
	    swizzled_coords[u] = udata->scaled[u] * idx_info->layout->dim[u];

        H5VM_swizzle_coords(hsize_t, swizzled_coords, idx_info->layout->u.earray.unlim_dim);

        /* Calculate the index of this chunk */
        idx = H5VM_chunk_index(ndims, swizzled_coords, idx_info->layout->u.earray.swizzled_dim, idx_info->layout->u.earray.swizzled_max_down_chunks);
    } /* end if */
    else {
        /* Calculate the index of this chunk */
        idx = H5VM_array_offset_pre((idx_info->layout->ndims - 1), idx_info->layout->max_down_chunks, udata->scaled);
    } /* end else */

    /* Check for filters on chunks */
    if(idx_info->pline->nused > 0) {
        H5D_earray_filt_elmt_t elmt;            /* Extensible array element */

        /* Get the info about the chunk for the index */
        if(H5EA_get(ea, idx_info->dxpl_id, idx, &elmt) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk info")

        /* Remove raw data chunk from file if not doing SWMR writes */
        HDassert(H5F_addr_defined(elmt.addr));
        if(!(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)) {
            H5_CHECK_OVERFLOW(elmt.nbytes, /*From: */uint32_t, /*To: */hsize_t);
            if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, elmt.addr, (hsize_t)elmt.nbytes) < 0)
                HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk")
        } /* end if */

        /* Reset the info about the chunk for the index */
        elmt.addr = HADDR_UNDEF;
        elmt.nbytes = 0;
        elmt.filter_mask = 0;
        if(H5EA_set(ea, idx_info->dxpl_id, idx, &elmt) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "unable to reset chunk info")
    } /* end if */
    else {
        haddr_t     addr = HADDR_UNDEF;     /* Chunk address */

        /* Get the address of the chunk for the index */
        if(H5EA_get(ea, idx_info->dxpl_id, idx, &addr) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get chunk address")

        /* Remove raw data chunk from file if not doing SWMR writes */
        HDassert(H5F_addr_defined(addr));
        if(!(H5F_INTENT(idx_info->f) & H5F_ACC_SWMR_WRITE)) {
            H5_CHECK_OVERFLOW(idx_info->layout->size, /*From: */uint32_t, /*To: */hsize_t);
            if(H5MF_xfree(idx_info->f, H5FD_MEM_DRAW, idx_info->dxpl_id, addr, (hsize_t)idx_info->layout->size) < 0)
                HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, FAIL, "unable to free chunk")
        } /* end if */

        /* Reset the address of the chunk for the index */
        addr = HADDR_UNDEF;
        if(H5EA_set(ea, idx_info->dxpl_id, idx, &addr) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "unable to reset chunk address")
    } /* end else */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* H5D__earray_idx_remove() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_delete_cb
 *
 * Purpose:	Delete space for chunk in file
 *
 * Return:	Success:	Non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static int
H5D__earray_idx_delete_cb(const H5D_chunk_rec_t *chunk_rec, void *_udata)
{
    H5D_earray_ud_t *udata = (H5D_earray_ud_t *)_udata;         /* User data for callback */
    int ret_value = H5_ITER_CONT;       /* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(chunk_rec);
    HDassert(H5F_addr_defined(chunk_rec->chunk_addr));
    HDassert(chunk_rec->nbytes > 0);
    HDassert(udata);
    HDassert(udata->f);

    /* Remove raw data chunk from file */
    H5_CHECK_OVERFLOW(chunk_rec->nbytes, /*From: */uint32_t, /*To: */hsize_t);
    if(H5MF_xfree(udata->f, H5FD_MEM_DRAW, udata->dxpl_id, chunk_rec->chunk_addr, (hsize_t)chunk_rec->nbytes) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTFREE, H5_ITER_ERROR, "unable to free chunk")

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_delete_cb() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_delete
 *
 * Purpose:	Delete index and raw data storage for entire dataset
 *              (i.e. all chunks)
 *
 * Note:	This implementation is slow, particularly for sparse
 *              extensible arrays, replace it with call to H5EA_iterate()
 *              when that's available.
 *
 * Return:	Success:	Non-negative
 *		Failure:	negative
 *
 * Programmer:	Quincey Koziol
 *              Thursday, January 29, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_delete(const H5D_chk_idx_info_t *idx_info)
{
    herr_t ret_value = SUCCEED;     /* Return value */

    FUNC_ENTER_STATIC

    /* Sanity checks */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);

    /* Check if the index data structure has been allocated */
    if(H5F_addr_defined(idx_info->storage->idx_addr)) {
        H5D_earray_ud_t udata;         /* User data for callback */
        H5D_earray_ctx_ud_t ctx_udata; /* User data for extensible array open call */

        /* Initialize user data for callback */
        udata.f = idx_info->f;
        udata.dxpl_id = idx_info->dxpl_id;

        /* Iterate over the chunk addresses in the extensible array, deleting each chunk */
        if(H5D__earray_idx_iterate(idx_info, H5D__earray_idx_delete_cb, &udata) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_BADITER, FAIL, "unable to iterate over chunk addresses")

        /* Close extensible array */
        if(H5EA_close(idx_info->storage->u.earray.ea, idx_info->dxpl_id) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, FAIL, "unable to close extensible array")
        idx_info->storage->u.earray.ea = NULL;

        /* Set up the context user data */
        ctx_udata.f = idx_info->f;
        ctx_udata.chunk_size = idx_info->layout->size;

        /* Delete extensible array */
        if(H5EA_delete(idx_info->f, idx_info->dxpl_id, idx_info->storage->idx_addr, &ctx_udata) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTDELETE, FAIL, "unable to delete chunk extensible array")
        idx_info->storage->idx_addr = HADDR_UNDEF;
    } /* end if */
    else
        HDassert(NULL == idx_info->storage->u.earray.ea);

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_delete() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_copy_setup
 *
 * Purpose:	Set up any necessary information for copying chunks
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_copy_setup(const H5D_chk_idx_info_t *idx_info_src,
    const H5D_chk_idx_info_t *idx_info_dst)
{
    herr_t      ret_value = SUCCEED;        /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info_src);
    HDassert(idx_info_src->f);
    HDassert(idx_info_src->pline);
    HDassert(idx_info_src->layout);
    HDassert(idx_info_src->storage);
    HDassert(idx_info_dst);
    HDassert(idx_info_dst->f);
    HDassert(idx_info_dst->pline);
    HDassert(idx_info_dst->layout);
    HDassert(idx_info_dst->storage);
    HDassert(!H5F_addr_defined(idx_info_dst->storage->idx_addr));

    /* Check if the source extensible array is open yet */
    if(NULL == idx_info_src->storage->u.earray.ea)
        /* Open the extensible array in file */
        if(H5D__earray_idx_open(idx_info_src) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't open extensible array")

    /* Set copied metadata tag */
    H5_BEGIN_TAG(idx_info_dst->dxpl_id, H5AC__COPIED_TAG, FAIL);

    /* Create the extensible array that describes chunked storage in the dest. file */
    if(H5D__earray_idx_create(idx_info_dst) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize chunked storage")
    HDassert(H5F_addr_defined(idx_info_dst->storage->idx_addr));

    /* Reset metadata tag */
    H5_END_TAG(FAIL);

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_copy_setup() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_copy_shutdown
 *
 * Purpose:	Shutdown any information from copying chunks
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_copy_shutdown(H5O_storage_chunk_t *storage_src,
    H5O_storage_chunk_t *storage_dst, hid_t dxpl_id)
{
    herr_t      ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(storage_src);
    HDassert(storage_src->u.earray.ea);
    HDassert(storage_dst);
    HDassert(storage_dst->u.earray.ea);

    /* Close extensible arrays */
    if(H5EA_close(storage_src->u.earray.ea, dxpl_id) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, FAIL, "unable to close extensible array")
    storage_src->u.earray.ea = NULL;
    if(H5EA_close(storage_dst->u.earray.ea, dxpl_id) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, FAIL, "unable to close extensible array")
    storage_dst->u.earray.ea = NULL;

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_copy_shutdown() */


/*-------------------------------------------------------------------------
 * Function:    H5D__earray_idx_size
 *
 * Purpose:     Retrieve the amount of index storage for chunked dataset
 *
 * Return:      Success:        Non-negative
 *              Failure:        negative
 *
 * Programmer:  Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_size(const H5D_chk_idx_info_t *idx_info, hsize_t *index_size)
{
    H5EA_t      *ea;                    /* Pointer to extensible array structure */
    H5EA_stat_t ea_stat;                /* Extensible array statistics */
    herr_t ret_value = SUCCEED;         /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->pline);
    HDassert(idx_info->layout);
    HDassert(idx_info->storage);
    HDassert(H5F_addr_defined(idx_info->storage->idx_addr));
    HDassert(index_size);

    /* Open the extensible array in file */
    if(H5D__earray_idx_open(idx_info) < 0)
        HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't open extensible array")

    /* Set convenience pointer to extensible array structure */
    ea = idx_info->storage->u.earray.ea;

    /* Get the extensible array statistics */
    if(H5EA_get_stats(ea, &ea_stat) < 0)
	HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't query extensible array statistics")

    /* Set the size of the extensible array */
    *index_size = ea_stat.computed.hdr_size + ea_stat.computed.index_blk_size
            + ea_stat.stored.super_blk_size + ea_stat.stored.data_blk_size;

done:
    if(idx_info->storage->u.earray.ea) {
        if(H5EA_close(idx_info->storage->u.earray.ea, idx_info->dxpl_id) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, FAIL, "unable to close extensible array")
        idx_info->storage->u.earray.ea = NULL;
    } /* end if */

    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_size() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_reset
 *
 * Purpose:	Reset indexing information.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_reset(H5O_storage_chunk_t *storage, hbool_t reset_addr)
{
    FUNC_ENTER_STATIC_NOERR

    /* Check args */
    HDassert(storage);

    /* Reset index info */
    if(reset_addr) {
	storage->idx_addr = HADDR_UNDEF;
        storage->u.earray.dset_ohdr_addr = HADDR_UNDEF;
    } /* end if */
    storage->u.earray.ea = NULL;

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_idx_reset() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_dump
 *
 * Purpose:	Dump indexing information to a stream.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_dump(const H5O_storage_chunk_t *storage, FILE *stream)
{
    FUNC_ENTER_STATIC_NOERR

    /* Check args */
    HDassert(storage);
    HDassert(stream);

    HDfprintf(stream, "    Address: %a\n", storage->idx_addr);

    FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5D__earray_idx_dump() */


/*-------------------------------------------------------------------------
 * Function:	H5D__earray_idx_dest
 *
 * Purpose:	Release indexing information in memory.
 *
 * Return:	Non-negative on success/Negative on failure
 *
 * Programmer:	Quincey Koziol
 *              Saturday, January 31, 2009
 *
 *-------------------------------------------------------------------------
 */
static herr_t
H5D__earray_idx_dest(const H5D_chk_idx_info_t *idx_info)
{
    herr_t      ret_value = SUCCEED;       /* Return value */

    FUNC_ENTER_STATIC

    /* Check args */
    HDassert(idx_info);
    HDassert(idx_info->f);
    HDassert(idx_info->storage);

    /* Check if the extensible array is open */
    if(idx_info->storage->u.earray.ea) {

	/* Patch the top level file pointer contained in ea if needed */
        if(H5EA_patch_file(idx_info->storage->u.earray.ea, idx_info->f) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, FAIL, "can't patch earray file pointer")

        /* Close extensible array */
        if(H5EA_close(idx_info->storage->u.earray.ea, idx_info->dxpl_id) < 0)
            HGOTO_ERROR(H5E_DATASET, H5E_CANTCLOSEOBJ, FAIL, "unable to close extensible array")
        idx_info->storage->u.earray.ea = NULL;
    } /* end if */

done:
    FUNC_LEAVE_NOAPI(ret_value)
} /* end H5D__earray_idx_dest() */
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