mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-12-21 07:51:46 +08:00
b1c318eebe
as complete as it could be, so I may add to it later. Fixed a bug in reference counting messages that are referenced by shared messages (attribute datatypes and dataspaces). Tested on mir, smirom, and Windows.
469 lines
19 KiB
C
469 lines
19 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * *fs * * * * * * * * * * * * * * * *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*-------------------------------------------------------------------------
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*
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* Created: H5Oprivate.h
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* Aug 5 1997
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* Robb Matzke <matzke@llnl.gov>
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*
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* Purpose: Object header private include file.
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*
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* Modifications:
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef _H5Oprivate_H
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#define _H5Oprivate_H
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/* Include the public header file for this API */
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#include "H5Opublic.h" /* Object header functions */
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/* Public headers needed by this file */
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#include "H5Dpublic.h" /* Dataset functions */
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#include "H5Lpublic.h" /* Link functions */
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#include "H5Spublic.h" /* Dataspace functions */
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/* Private headers needed by this file */
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#include "H5Fprivate.h" /* File access */
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#include "H5SLprivate.h" /* Skip lists */
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#include "H5Tprivate.h" /* Datatype functions */
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#include "H5Zprivate.h" /* I/O pipeline filters */
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/* Forward references of package typedefs */
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typedef struct H5O_msg_class_t H5O_msg_class_t;
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typedef struct H5O_t H5O_t;
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/* JAMES: should these be in H5SM_private? or renamed? */
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/* JAMES: causes errors encoding/decoding if this is wrong. Can't be constant. */
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#define H5SM_FHEAP_ID_LEN 7
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/* JAMES: not great? */
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typedef uint64_t H5SM_fheap_id_t;
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/* JAMES for debugging */
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#define PRINT_BUF(buf, size) \
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if(1) { size_t x; \
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for(x=0; x<size; ++x) { \
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printf("%d ", *(((uint8_t *) buf) + x)); \
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} printf("\n"); }
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/* Object header macros */
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#define H5O_MESG_MAX_SIZE 65536 /*max obj header message size */
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#define H5O_ALL (-1) /* Operate on all messages of type */
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#define H5O_FIRST (-2) /* Operate on first message of type */
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/* Flags needed when encoding messages */
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#define H5O_MSG_FLAG_CONSTANT 0x01u
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#define H5O_MSG_FLAG_SHARED 0x02u
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#define H5O_MSG_FLAG_DONTSHARE 0x04u
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#define H5O_MSG_FLAG_BITS (H5O_MSG_FLAG_CONSTANT|H5O_MSG_FLAG_SHARED|H5O_MSG_FLAG_DONTSHARE)
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/* Flags for updating messages */
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#define H5O_UPDATE_TIME 0x01u
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/* Hash value constants */
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/* JAMES: undefined hash value may not be great */
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#define H5O_HASH_SIZE 32
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#define H5O_HASH_UNDEF ((uint32_t)FAIL)
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/* ========= Object Creation properties ============ */
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#define H5O_CRT_ATTR_MAX_COMPACT_NAME "max compact attr" /* Max. # of attributes to store compactly */
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#define H5O_CRT_ATTR_MIN_DENSE_NAME "min dense attr" /* Min. # of attributes to store densely */
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/* ========= Object Copy properties ============ */
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#define H5O_CPY_OPTION_NAME "copy object" /* Copy options */
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/* The object location information for an object */
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typedef struct H5O_loc_t {
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H5F_t *file; /* File that object header is located within */
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haddr_t addr; /* File address of object header */
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hbool_t holding_file; /* True if this object header has incremented
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* its file's count of open objects. */
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} H5O_loc_t;
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/* Settings/flags for copying an object */
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typedef struct H5O_copy_t {
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hbool_t copy_shallow; /* Flag to perform shallow hierarchy copy */
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hbool_t expand_soft_link; /* Flag to expand soft links */
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hbool_t expand_ext_link; /* Flag to expand external links */
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hbool_t expand_ref; /* Flag to expand object references */
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hbool_t copy_without_attr; /* Flag to not copy attributes */
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hbool_t preserve_null; /* Flag to not delete NULL messages */
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int curr_depth; /* Current depth in hierarchy copied */
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int max_depth; /* Maximum depth in hierarchy to copy */
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H5SL_t *map_list; /* Skip list to hold address mappings */
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} H5O_copy_t;
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/* Header message IDs */
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#define H5O_NULL_ID 0x0000 /* Null Message. */
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#define H5O_SDSPACE_ID 0x0001 /* Simple Dataspace Message. */
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#define H5O_LINFO_ID 0x0002 /* Link Info Message. */
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#define H5O_DTYPE_ID 0x0003 /* Datatype Message. */
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#define H5O_FILL_ID 0x0004 /* Fill Value Message. (Old) */
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#define H5O_FILL_NEW_ID 0x0005 /* Fill Value Message. (New) */
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#define H5O_LINK_ID 0x0006 /* Link Message. */
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#define H5O_EFL_ID 0x0007 /* External File List Message */
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#define H5O_LAYOUT_ID 0x0008 /* Data Storage Layout Message. */
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#define H5O_BOGUS_ID 0x0009 /* "Bogus" Message. */
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#define H5O_GINFO_ID 0x000a /* Group Info Message. */
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#define H5O_PLINE_ID 0x000b /* Filter pipeline message. */
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#define H5O_ATTR_ID 0x000c /* Attribute Message. */
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#define H5O_NAME_ID 0x000d /* Object name message. */
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#define H5O_MTIME_ID 0x000e /* Modification time message. (Old) */
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#define H5O_SHARED_ID 0x000f /* Shared object message. */
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#define H5O_CONT_ID 0x0010 /* Object header continuation message. */
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#define H5O_STAB_ID 0x0011 /* Symbol table message. */
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#define H5O_MTIME_NEW_ID 0x0012 /* Modification time message. (New) */
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/* Shared object message flags.
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* Shared objects can be committed, in which case the shared message contains
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* the location of the object header that holds the message, or shared in the
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* heap, in which case the shared message holds their heap ID.
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*/
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#define H5O_NOT_SHARED 0
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#define H5O_SHARED_IN_HEAP_FLAG 0x01
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#define H5O_COMMITTED_FLAG 0x02
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#define H5O_IS_SHARED(F) (((F) & (H5O_SHARED_IN_HEAP_FLAG | H5O_COMMITTED_FLAG)) ? TRUE : FALSE)
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/*
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* Shared object message.
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* This needs to go first because other messages can be shared and
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* include a H5O_shared_t struct
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*/
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typedef struct H5O_shared_t {
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unsigned flags; /* flags describing how message is shared */
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union {
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H5O_loc_t oloc; /*object location info */
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H5SM_fheap_id_t heap_id; /* ID within the SOHM heap */
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} u;
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/* JAMES: add hash value? */
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} H5O_shared_t;
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/*
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* Link Info Message.
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* (Contains dynamic information about links in a group)
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* (Data structure in memory)
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* (if the fields in this struct are changed, remember to change the default
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* link info structure in src/H5Gprivate.h - QAK)
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*/
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typedef struct H5O_linfo_t {
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/* (creation order info) */
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hbool_t index_corder; /* Are creation order values indexed on links? */
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int64_t min_corder; /* Current min. creation order value for group */
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int64_t max_corder; /* Current max. creation order value for group */
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haddr_t corder_bt2_addr; /* Address of v2 B-tree for indexing creation order values of links */
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/* (storage management info) */
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hsize_t nlinks; /* Number of links in the group */
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haddr_t link_fheap_addr; /* Address of fractal heap for storing "dense" links */
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haddr_t name_bt2_addr; /* Address of v2 B-tree for indexing names of links */
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} H5O_linfo_t;
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/*
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* Fill Value Message. (Old)
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* (Data structure in memory)
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*/
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typedef struct H5O_fill_t {
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H5T_t *type; /*type. Null implies same as dataset */
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size_t size; /*number of bytes in the fill value */
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void *buf; /*the fill value */
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} H5O_fill_t;
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/*
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* New Fill Value Message. The new fill value message is fill value plus
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* space allocation time, fill value writing time, whether fill
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* value is defined, and the location of the message if it's shared
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*/
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typedef struct H5O_fill_new_t {
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H5T_t *type; /*type. Null implies same as dataset */
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ssize_t size; /*number of bytes in the fill value */
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void *buf; /*the fill value */
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H5D_alloc_time_t alloc_time; /* time to allocate space */
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H5D_fill_time_t fill_time; /* time to write fill value */
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hbool_t fill_defined; /* whether fill value is defined */
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H5O_shared_t sh_loc; /*location of shared message */
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} H5O_fill_new_t;
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/*
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* Link message.
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* (Data structure in memory)
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*/
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typedef struct H5O_link_hard_t {
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haddr_t addr; /* Object header address */
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} H5O_link_hard_t;
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typedef struct H5O_link_soft_t {
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char *name; /* Destination name */
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} H5O_link_soft_t;
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typedef struct H5O_link_ud_t {
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void *udata; /* Opaque data supplied by the user */
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size_t size; /* Size of udata */
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} H5O_link_ud_t;
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typedef struct H5O_link_t {
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H5L_type_t type; /* Type of link */
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hbool_t corder_valid; /* Creation order for link is valid (not stored) */
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int64_t corder; /* Creation order for link (stored if it's valid) */
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H5T_cset_t cset; /* Character set of link name */
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char *name; /* Link name */
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union {
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H5O_link_hard_t hard; /* Information for hard links */
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H5O_link_soft_t soft; /* Information for soft links */
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H5O_link_ud_t ud; /* Information for user-defined links */
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} u;
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} H5O_link_t;
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/*
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* External File List Message
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* (Data structure in memory)
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*/
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#define H5O_EFL_ALLOC 16 /*number of slots to alloc at once */
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#define H5O_EFL_UNLIMITED H5F_UNLIMITED /*max possible file size */
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typedef struct H5O_efl_entry_t {
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size_t name_offset; /*offset of name within heap */
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char *name; /*malloc'd name */
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off_t offset; /*offset of data within file */
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hsize_t size; /*size allocated within file */
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} H5O_efl_entry_t;
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typedef struct H5O_efl_t {
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haddr_t heap_addr; /*address of name heap */
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size_t nalloc; /*number of slots allocated */
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size_t nused; /*number of slots used */
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H5O_efl_entry_t *slot; /*array of external file entries */
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} H5O_efl_t;
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/*
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* Data Layout Message.
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* (Data structure in memory)
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*/
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#define H5O_LAYOUT_NDIMS (H5S_MAX_RANK+1)
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typedef struct H5O_layout_contig_t {
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haddr_t addr; /* File address of data */
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hsize_t size; /* Size of data in bytes */
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} H5O_layout_contig_t;
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typedef struct H5O_layout_chunk_t {
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haddr_t addr; /* File address of B-tree */
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unsigned ndims; /* Num dimensions in chunk */
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size_t dim[H5O_LAYOUT_NDIMS]; /* Size of chunk in elements */
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size_t size; /* Size of chunk in bytes */
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H5RC_t *btree_shared; /* Ref-counted info for B-tree nodes */
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} H5O_layout_chunk_t;
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typedef struct H5O_layout_compact_t {
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hbool_t dirty; /* Dirty flag for compact dataset */
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size_t size; /* Size of buffer in bytes */
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void *buf; /* Buffer for compact dataset */
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} H5O_layout_compact_t;
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typedef struct H5O_layout_t {
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H5D_layout_t type; /* Type of layout */
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unsigned version; /* Version of message */
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union {
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H5O_layout_contig_t contig; /* Information for contiguous layout */
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H5O_layout_chunk_t chunk; /* Information for chunked layout */
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H5O_layout_compact_t compact; /* Information for compact layout */
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} u;
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} H5O_layout_t;
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/* Enable reading/writing "bogus" messages */
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/* #define H5O_ENABLE_BOGUS */
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#ifdef H5O_ENABLE_BOGUS
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/*
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* "Bogus" Message.
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* (Data structure in memory)
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*/
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#define H5O_BOGUS_VALUE 0xdeadbeef
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typedef struct H5O_bogus_t {
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unsigned u; /* Hold the bogus info */
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} H5O_bogus_t;
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#endif /* H5O_ENABLE_BOGUS */
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/*
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* Group info message.
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* (Contains constant information about a group)
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* (Data structure in memory)
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* (if the fields in this struct are changed, remember to change the default
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* group info structure in src/H5Gprivate.h - QAK)
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*/
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typedef struct H5O_ginfo_t {
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/* "Old" format group info (not stored) */
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uint32_t lheap_size_hint; /* Local heap size hint */
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/* "New" format group info (stored) */
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/* (creation order info) */
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hbool_t track_corder; /* Are creation order values tracked on links? */
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/* (storage management info) */
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uint16_t max_compact; /* Maximum # of compact links */
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uint16_t min_dense; /* Minimum # of "dense" links */
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/* (initial object header size info) */
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uint16_t est_num_entries; /* Estimated # of entries in group */
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uint16_t est_name_len; /* Estimated length of entry name */
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} H5O_ginfo_t;
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/*
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* Filter pipeline message.
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* (Data structure in memory)
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*/
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typedef struct H5O_pline_t {
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size_t nalloc; /*num elements in `filter' array */
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size_t nused; /*num filters defined */
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H5Z_filter_info_t *filter; /*array of filters */
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H5O_shared_t sh_loc; /*location of shared message */
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} H5O_pline_t;
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/*
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* Object name message.
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* (Data structure in memory)
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*/
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typedef struct H5O_name_t {
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char *s; /*ptr to malloc'd memory */
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} H5O_name_t;
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/*
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* Object header continuation message.
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* (Data structure in memory)
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*/
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typedef struct H5O_cont_t {
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haddr_t addr; /*address of continuation block */
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size_t size; /*size of continuation block */
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/* the following field(s) do not appear on disk */
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unsigned chunkno; /*chunk this mesg refers to */
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} H5O_cont_t;
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/*
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* Symbol table message.
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* (Data structure in memory)
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*/
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typedef struct H5O_stab_t {
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haddr_t btree_addr; /*address of B-tree */
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haddr_t heap_addr; /*address of name heap */
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} H5O_stab_t;
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/* Typedef for iteration operations */
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typedef herr_t (*H5O_operator_t)(const void *mesg/*in*/, unsigned idx,
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void *operator_data/*in,out*/);
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/* Forward declarations for prototype arguments */
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struct H5P_genplist_t;
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struct H5SL_t;
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struct H5O_t;
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/* Object header routines */
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H5_DLL herr_t H5O_init(void);
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H5_DLL herr_t H5O_create(H5F_t *f, hid_t dxpl_id, size_t size_hint,
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hid_t ocpl_id, H5O_loc_t *loc/*out*/);
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H5_DLL herr_t H5O_open(const H5O_loc_t *loc);
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H5_DLL herr_t H5O_close(H5O_loc_t *loc);
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H5_DLL int H5O_link(const H5O_loc_t *loc, int adjust, hid_t dxpl_id);
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H5_DLL struct H5O_t *H5O_protect(H5O_loc_t *loc, hid_t dxpl_id);
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H5_DLL herr_t H5O_unprotect(H5O_loc_t *loc, struct H5O_t *oh, hid_t dxpl_id,
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unsigned oh_flags);
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H5_DLL herr_t H5O_touch(H5O_loc_t *loc, hbool_t force, hid_t dxpl_id);
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H5_DLL herr_t H5O_touch_oh(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh,
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hbool_t force, unsigned *oh_flags_ptr);
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#ifdef H5O_ENABLE_BOGUS
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H5_DLL herr_t H5O_bogus(H5O_loc_t *loc, hid_t dxpl_id);
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H5_DLL herr_t H5O_bogus_oh(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh,
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unsigned * oh_flags_ptr);
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#endif /* H5O_ENABLE_BOGUS */
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H5_DLL herr_t H5O_delete(H5F_t *f, hid_t dxpl_id, haddr_t addr);
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H5_DLL herr_t H5O_get_info(H5O_loc_t *oloc, H5O_info_t *oinfo, hid_t dxpl_id);
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H5_DLL herr_t H5O_obj_type(const H5O_loc_t *loc, H5O_type_t *obj_type, hid_t dxpl_id);
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H5_DLL herr_t H5O_get_create_plist(const H5O_loc_t *loc, hid_t dxpl_id, struct H5P_genplist_t *oc_plist);
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/* Object header message routines */
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H5_DLL herr_t H5O_msg_create(H5O_loc_t *loc, unsigned type_id, unsigned mesg_flags,
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unsigned update_flags, void *mesg, hid_t dxpl_id);
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H5_DLL herr_t H5O_msg_append(H5F_t *f, hid_t dxpl_id, struct H5O_t *oh, unsigned type_id,
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unsigned mesg_flags, unsigned update_flags, void *mesg,
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unsigned *oh_flags_ptr);
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H5_DLL herr_t H5O_msg_write(H5O_loc_t *loc, unsigned type_id, unsigned overwrite,
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unsigned flags, unsigned update_flags, void *mesg, hid_t dxpl_id);
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H5_DLL void *H5O_msg_read(const H5O_loc_t *loc, unsigned type_id, int sequence,
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void *mesg, hid_t dxpl_id);
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H5_DLL herr_t H5O_msg_reset(unsigned type_id, void *native);
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H5_DLL void *H5O_msg_free(unsigned type_id, void *mesg);
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H5_DLL void *H5O_msg_copy(unsigned type_id, const void *mesg, void *dst);
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H5_DLL int H5O_msg_count(const H5O_loc_t *loc, unsigned type_id, hid_t dxpl_id);
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H5_DLL htri_t H5O_msg_exists(H5O_loc_t *loc, unsigned type_id, int sequence,
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hid_t dxpl_id);
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H5_DLL herr_t H5O_msg_remove(H5O_loc_t *loc, unsigned type_id, int sequence,
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hbool_t adj_link, hid_t dxpl_id);
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H5_DLL herr_t H5O_msg_remove_op(const H5O_loc_t *loc, unsigned type_id, int sequence,
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H5O_operator_t op, void *op_data, hbool_t adj_link, hid_t dxpl_id);
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H5_DLL herr_t H5O_msg_iterate(const H5O_loc_t *loc, unsigned type_id, H5O_operator_t op,
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void *op_data, hid_t dxpl_id);
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H5_DLL size_t H5O_msg_raw_size(const H5F_t *f, unsigned type_id, const void *mesg);
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H5_DLL size_t H5O_msg_mesg_size(const H5F_t *f, unsigned type_id, const void *mesg,
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size_t extra_raw);
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H5_DLL void *H5O_msg_get_share(unsigned type_id, const void *mesg, H5O_shared_t *share);
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H5_DLL htri_t H5O_msg_is_shared(unsigned type_id, const void *mesg);
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H5_DLL herr_t H5O_msg_set_share(unsigned type_id, H5O_shared_t *share, void *mesg);
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H5_DLL herr_t H5O_msg_reset_share(unsigned type_id, void *mesg);
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H5_DLL herr_t H5O_msg_encode(H5F_t *f, unsigned type_id, unsigned char *buf, const void *obj);
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H5_DLL void* H5O_msg_decode(H5F_t *f, hid_t dxpl_id, unsigned type_id,
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const unsigned char *buf);
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H5_DLL herr_t H5O_msg_delete(H5F_t *f, hid_t dxpl_id, unsigned type_id, const void *mesg);
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/* Object copying routines */
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H5_DLL herr_t H5O_copy_header_map(const H5O_loc_t *oloc_src, H5O_loc_t *oloc_dst /*out */,
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hid_t dxpl_id, H5O_copy_t *cpy_info, hbool_t inc_depth);
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H5_DLL herr_t H5O_copy_expand_ref(H5F_t *file_src, void *_src_ref, hid_t dxpl_id,
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H5F_t *file_dst, void *_dst_ref, size_t ref_count, H5R_type_t ref_type,
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H5O_copy_t *cpy_info);
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/* Debugging routines */
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H5_DLL herr_t H5O_debug_id(unsigned type_id, H5F_t *f, hid_t dxpl_id, const void *mesg, FILE *stream, int indent, int fwidth);
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H5_DLL herr_t H5O_debug(H5F_t *f, hid_t dxpl_id, haddr_t addr, FILE * stream, int indent,
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int fwidth);
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/* These functions operate on object locations */
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H5_DLL herr_t H5O_loc_reset(H5O_loc_t *loc);
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H5_DLL herr_t H5O_loc_copy(H5O_loc_t *dst, const H5O_loc_t *src, H5_copy_depth_t depth);
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H5_DLL herr_t H5O_loc_hold_file(H5O_loc_t *loc);
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H5_DLL herr_t H5O_loc_free(H5O_loc_t *loc);
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/* Layout operators */
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H5_DLL size_t H5O_layout_meta_size(const H5F_t *f, const void *_mesg);
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/* EFL operators */
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H5_DLL hsize_t H5O_efl_total_size(H5O_efl_t *efl);
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/* Fill value operators */
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H5_DLL herr_t H5O_fill_convert(void *_fill, H5T_t *type, hid_t dxpl_id);
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/* Link operators */
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H5_DLL herr_t H5O_link_delete(H5F_t *f, hid_t dxpl_id, const void *_mesg, hbool_t adj_link);
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#endif /* _H5Oprivate_H */
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