H5Dpublic.h

Go to the documentation of this file.

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * 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 public declarations for the H5D module.
 */
#ifndef _H5Dpublic_H
#define _H5Dpublic_H

/* System headers needed by this file */

/* Public headers needed by this file */
#include "H5public.h"
#include "H5Ipublic.h"

/*****************/
/* Public Macros */
/*****************/

/* Macros used to "unset" chunk cache configuration parameters */
#define H5D_CHUNK_CACHE_NSLOTS_DEFAULT      ((size_t) -1)
#define H5D_CHUNK_CACHE_NBYTES_DEFAULT      ((size_t) -1)
#define H5D_CHUNK_CACHE_W0_DEFAULT          (-1.0f)

/* Property names for H5LTDdirect_chunk_write */
#define H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME           "direct_chunk_flag"
#define H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME    "direct_chunk_filters"
#define H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME     "direct_chunk_offset"
#define H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME   "direct_chunk_datasize"

/* Property names for H5LTDdirect_chunk_read */
#define H5D_XFER_DIRECT_CHUNK_READ_FLAG_NAME        "direct_chunk_read_flag"
#define H5D_XFER_DIRECT_CHUNK_READ_OFFSET_NAME      "direct_chunk_read_offset"
#define H5D_XFER_DIRECT_CHUNK_READ_FILTERS_NAME      "direct_chunk_read_filters"

/*******************/
/* Public Typedefs */
/*******************/

/* Values for the H5D_LAYOUT property */
typedef enum H5D_layout_t {
    H5D_LAYOUT_ERROR    = -1,

    H5D_COMPACT     = 0,    /*raw data is very small             */
    H5D_CONTIGUOUS  = 1,    /*the default                    */
    H5D_CHUNKED     = 2,    /*slow and fancy                 */
    H5D_NLAYOUTS    = 3 /*this one must be last!             */
} H5D_layout_t;

/* Types of chunk index data structures */
typedef enum H5D_chunk_index_t {
    H5D_CHUNK_BTREE = 0 /* v1 B-tree index               */
} H5D_chunk_index_t;

/* Values for the space allocation time property */
typedef enum H5D_alloc_time_t {
    H5D_ALLOC_TIME_ERROR    = -1,
    H5D_ALLOC_TIME_DEFAULT      = 0,
    H5D_ALLOC_TIME_EARLY    = 1,
    H5D_ALLOC_TIME_LATE     = 2,
    H5D_ALLOC_TIME_INCR     = 3
} H5D_alloc_time_t;

/* Values for the status of space allocation */
typedef enum H5D_space_status_t {
    H5D_SPACE_STATUS_ERROR      = -1,
    H5D_SPACE_STATUS_NOT_ALLOCATED  = 0,
    H5D_SPACE_STATUS_PART_ALLOCATED = 1,
    H5D_SPACE_STATUS_ALLOCATED      = 2
} H5D_space_status_t;

/* Values for time of writing fill value property */
typedef enum H5D_fill_time_t {
    H5D_FILL_TIME_ERROR = -1,
    H5D_FILL_TIME_ALLOC = 0,
    H5D_FILL_TIME_NEVER = 1,
    H5D_FILL_TIME_IFSET = 2
} H5D_fill_time_t;

/* Values for fill value status */
typedef enum H5D_fill_value_t {
    H5D_FILL_VALUE_ERROR        =-1,
    H5D_FILL_VALUE_UNDEFINED    =0,
    H5D_FILL_VALUE_DEFAULT      =1,
    H5D_FILL_VALUE_USER_DEFINED =2
} H5D_fill_value_t;

/********************/
/* Public Variables */
/********************/

/*********************/
/* Public Prototypes */
/*********************/
#ifdef __cplusplus
extern "C" {
#endif

/* Define the operator function pointer for H5Diterate() */
typedef herr_t (*H5D_operator_t)(void *elem, hid_t type_id, unsigned ndim,
                 const hsize_t *point, void *operator_data);

/* Define the operator function pointer for H5Dscatter() */
typedef herr_t (*H5D_scatter_func_t)(const void **src_buf/*out*/,
                                     size_t *src_buf_bytes_used/*out*/,
                                     void *op_data);

/* Define the operator function pointer for H5Dgather() */
typedef herr_t (*H5D_gather_func_t)(const void *dst_buf,
                                    size_t dst_buf_bytes_used, void *op_data);

H5_DLL hid_t H5Dcreate2(hid_t loc_id, const char *name, hid_t type_id,
    hid_t space_id, hid_t lcpl_id, hid_t dcpl_id, hid_t dapl_id);
H5_DLL hid_t H5Dcreate_anon(hid_t file_id, hid_t type_id, hid_t space_id,
    hid_t plist_id, hid_t dapl_id);
H5_DLL hid_t H5Dopen2(hid_t file_id, const char *name, hid_t dapl_id);
H5_DLL herr_t H5Dclose(hid_t dset_id);
H5_DLL hid_t H5Dget_space(hid_t dset_id);
H5_DLL herr_t H5Dget_space_status(hid_t dset_id, H5D_space_status_t *allocation);
H5_DLL hid_t H5Dget_type(hid_t dset_id);
H5_DLL hid_t H5Dget_create_plist(hid_t dset_id);
H5_DLL hid_t H5Dget_access_plist(hid_t dset_id);
H5_DLL hsize_t H5Dget_storage_size(hid_t dset_id);
H5_DLL herr_t H5Dget_chunk_storage_size(hid_t dset_id, const hsize_t *offset, hsize_t *chunk_bytes);
H5_DLL haddr_t H5Dget_offset(hid_t dset_id);
H5_DLL herr_t H5Dread(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
            hid_t file_space_id, hid_t plist_id, void *buf/*out*/);
H5_DLL herr_t H5Dwrite(hid_t dset_id, hid_t mem_type_id, hid_t mem_space_id,
             hid_t file_space_id, hid_t plist_id, const void *buf);
H5_DLL herr_t H5Diterate(void *buf, hid_t type_id, hid_t space_id,
            H5D_operator_t op, void *operator_data);
H5_DLL herr_t H5Dvlen_reclaim(hid_t type_id, hid_t space_id, hid_t plist_id, void *buf);
H5_DLL herr_t H5Dvlen_get_buf_size(hid_t dataset_id, hid_t type_id, hid_t space_id, hsize_t *size);
H5_DLL herr_t H5Dfill(const void *fill, hid_t fill_type, void *buf,
        hid_t buf_type, hid_t space);
H5_DLL herr_t H5Dset_extent(hid_t dset_id, const hsize_t size[]);
H5_DLL herr_t H5Dscatter(H5D_scatter_func_t op, void *op_data, hid_t type_id,
    hid_t dst_space_id, void *dst_buf);
H5_DLL herr_t H5Dgather(hid_t src_space_id, const void *src_buf, hid_t type_id,
    size_t dst_buf_size, void *dst_buf, H5D_gather_func_t op, void *op_data);
H5_DLL herr_t H5Ddebug(hid_t dset_id);

/* Symbols defined for compatibility with previous versions of the HDF5 API.
 *
 * Use of these symbols is deprecated.
 */
#ifndef H5_NO_DEPRECATED_SYMBOLS

/* Macros */


/* Typedefs */


/* Function prototypes */
H5_DLL hid_t H5Dcreate1(hid_t file_id, const char *name, hid_t type_id,
    hid_t space_id, hid_t dcpl_id);
H5_DLL hid_t H5Dopen1(hid_t file_id, const char *name);
H5_DLL herr_t H5Dextend(hid_t dset_id, const hsize_t size[]);

#endif /* H5_NO_DEPRECATED_SYMBOLS */

#ifdef __cplusplus
}
#endif
#endif /* _H5Dpublic_H */