/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#if !(defined H5O_FRIEND || defined H5O_MODULE)
#error "Do not include this file outside the H5O package!"
#endif
#ifndef H5Opkg_H
#define H5Opkg_H
/* Get package's private header */
#include "H5Oprivate.h" /* Object headers */
/* Other private headers needed by this file */
#include "H5ACprivate.h" /* Metadata cache */
#include "H5FLprivate.h" /* Free Lists */
/* Object header macros */
#define H5O_NMESGS 8 /*initial number of messages */
#define H5O_NCHUNKS 2 /*initial number of chunks */
#define H5O_MIN_SIZE \
22 /* Min. obj header data size (must be big enough for a message prefix and a continuation message) */
#define H5O_MSG_TYPES 26 /* # of types of messages */
#define H5O_MAX_CRT_ORDER_IDX 65535 /* Max. creation order index value */
/* Versions of object header structure */
/* Initial version of the object header format */
#define H5O_VERSION_1 1
/* Revised version - leaves out reserved bytes and alignment padding, and adds
* magic number as prefix and checksum as suffix for all chunks.
*/
#define H5O_VERSION_2 2
/* The latest version of the format. Look through the 'flush'
* and 'size' callback for places to change when updating this. */
#define H5O_VERSION_LATEST H5O_VERSION_2
/*
* Align messages on 8-byte boundaries because we would like to copy the
* object header chunks directly into memory and operate on them there, even
* on 64-bit architectures. This allows us to reduce the number of disk I/O
* requests with a minimum amount of mem-to-mem copies.
*
* Note: We no longer attempt to do this. - QAK, 10/16/06
*/
#define H5O_ALIGN_OLD(X) (8 * (((X) + 7) / 8))
#define H5O_ALIGN_VERS(V, X) (((V) == H5O_VERSION_1) ? H5O_ALIGN_OLD(X) : (X))
#define H5O_ALIGN_OH(O, X) H5O_ALIGN_VERS((O)->version, X)
#define H5O_ALIGN_F(F, X) H5O_ALIGN_VERS(MAX(H5O_VERSION_1, (uint8_t)H5O_obj_ver_bounds[H5F_LOW_BOUND(F)]), X)
/* Size of checksum (on disk) */
#define H5O_SIZEOF_CHKSUM 4
/* ========= Object Creation properties ============ */
/* Default values for some of the object creation properties */
/* NOTE: The H5O_CRT_ATTR_MAX_COMPACT_DEF & H5O_CRT_ATTR_MIN_DENSE_DEF values
* are "built into" the file format, make certain existing files with
* default attribute phase change storage are handled correctly if they
* are changed.
*/
#define H5O_CRT_ATTR_MAX_COMPACT_DEF 8
#define H5O_CRT_ATTR_MIN_DENSE_DEF 6
#define H5O_CRT_OHDR_FLAGS_DEF H5O_HDR_STORE_TIMES
/* Object header status flag definitions */
#define H5O_HDR_CHUNK0_1 0x00 /* Use 1-byte value for chunk #0 size */
#define H5O_HDR_CHUNK0_2 0x01 /* Use 2-byte value for chunk #0 size */
#define H5O_HDR_CHUNK0_4 0x02 /* Use 4-byte value for chunk #0 size */
#define H5O_HDR_CHUNK0_8 0x03 /* Use 8-byte value for chunk #0 size */
/*
* Size of object header prefix.
*/
#define H5O_SIZEOF_HDR(O) \
(((O)->version == H5O_VERSION_1) \
? H5O_ALIGN_OLD(1 + /*version number */ \
1 + /*reserved */ \
2 + /*number of messages */ \
4 + /*reference count */ \
4) /*chunk data size */ \
: (H5_SIZEOF_MAGIC + /*magic number */ \
1 + /*version number */ \
1 + /*flags */ \
(((O)->flags & H5O_HDR_STORE_TIMES) ? (4 + /*access time */ \
4 + /*modification time */ \
4 + /*change time */ \
4 /*birth time */ \
) \
: 0) + \
(((O)->flags & H5O_HDR_ATTR_STORE_PHASE_CHANGE) ? (2 + /*max compact attributes */ \
2 /*min dense attributes */ \
) \
: 0) + \
(1 << ((O)->flags & H5O_HDR_CHUNK0_SIZE)) + /*chunk 0 data size */ \
H5O_SIZEOF_CHKSUM) /*checksum size */ \
)
/*
* Size of object header message prefix
*/
#define H5O_SIZEOF_MSGHDR_VERS(V, C) \
(((V) == H5O_VERSION_1) ? H5O_ALIGN_OLD(2 + /*message type */ \
2 + /*sizeof message data */ \
1 + /*flags */ \
3) /*reserved */ \
: (1 + /*message type */ \
2 + /*sizeof message data */ \
1 + /*flags */ \
((C) ? (2 /*creation index */ \
) \
: 0)))
#define H5O_SIZEOF_MSGHDR_OH(O) \
(unsigned)H5O_SIZEOF_MSGHDR_VERS((O)->version, (O)->flags &H5O_HDR_ATTR_CRT_ORDER_TRACKED)
#define H5O_SIZEOF_MSGHDR_F(F, C) \
(unsigned)H5O_SIZEOF_MSGHDR_VERS(MAX((H5F_STORE_MSG_CRT_IDX(F) ? H5O_VERSION_LATEST : H5O_VERSION_1), \
(uint8_t)H5O_obj_ver_bounds[H5F_LOW_BOUND(F)]), \
(C))
/*
* Size of chunk "header" for each chunk
*/
#define H5O_SIZEOF_CHKHDR_VERS(V) \
(((V) == H5O_VERSION_1) ? 0 + /*no magic # */ \
0 /*no checksum */ \
: H5_SIZEOF_MAGIC + /*magic # */ \
H5O_SIZEOF_CHKSUM /*checksum */ \
)
#define H5O_SIZEOF_CHKHDR_OH(O) H5O_SIZEOF_CHKHDR_VERS((O)->version)
/*
* Size of checksum for each chunk
*/
#define H5O_SIZEOF_CHKSUM_VERS(V) \
(((V) == H5O_VERSION_1) ? 0 /*no checksum */ \
: H5O_SIZEOF_CHKSUM /*checksum */ \
)
#define H5O_SIZEOF_CHKSUM_OH(O) H5O_SIZEOF_CHKSUM_VERS((O)->version)
/* Input/output flags for decode functions */
#define H5O_DECODEIO_NOCHANGE 0x01u /* IN: do not modify values */
#define H5O_DECODEIO_DIRTY 0x02u /* OUT: message has been changed */
/* Macro to incremend ndecode_dirtied (only if we are debugging) */
#ifndef NDEBUG
#define INCR_NDECODE_DIRTIED(OH) (OH)->ndecode_dirtied++;
#else /* NDEBUG */
#define INCR_NDECODE_DIRTIED(OH) ;
#endif /* NDEBUG */
/* Load native information for a message, if it's not already present */
/* (Only works for messages with decode callback) */
#define H5O_LOAD_NATIVE(F, IOF, OH, MSG, ERR) \
if (NULL == (MSG)->native) { \
const H5O_msg_class_t *msg_type = (MSG)->type; \
unsigned ioflags = (IOF); \
\
/* Decode the message */ \
HDassert(msg_type->decode); \
if (NULL == ((MSG)->native = (msg_type->decode)((F), (OH), (MSG)->flags, &ioflags, (MSG)->raw_size, \
(MSG)->raw))) \
HGOTO_ERROR(H5E_OHDR, H5E_CANTDECODE, ERR, "unable to decode message") \
\
/* Mark the message dirty if it was changed by decoding */ \
if ((ioflags & H5O_DECODEIO_DIRTY) && (H5F_get_intent((F)) & H5F_ACC_RDWR)) { \
(MSG)->dirty = TRUE; \
/* Increment the count of messages dirtied by decoding, but */ \
/* only ifndef NDEBUG */ \
INCR_NDECODE_DIRTIED(OH) \
} \
\
/* Set the message's "shared info", if it's shareable */ \
if ((MSG)->flags & H5O_MSG_FLAG_SHAREABLE) { \
HDassert(msg_type->share_flags &H5O_SHARE_IS_SHARABLE); \
H5O_UPDATE_SHARED((H5O_shared_t *)(MSG)->native, H5O_SHARE_TYPE_HERE, (F), msg_type->id, \
(MSG)->crt_idx, (OH)->chunk[0].addr) \
} /* end if */ \
\
/* Set the message's "creation index", if it has one */ \
if (msg_type->set_crt_index) { \
/* Set the creation index for the message */ \
if ((msg_type->set_crt_index)((MSG)->native, (MSG)->crt_idx) < 0) \
HGOTO_ERROR(H5E_OHDR, H5E_CANTSET, ERR, "unable to set creation index") \
} /* end if */ \
} /* end if */
/* Flags for a message class's "sharability" */
#define H5O_SHARE_IS_SHARABLE 0x01
#define H5O_SHARE_IN_OHDR 0x02
/* Set the object header size to speculatively read in */
/* (needs to be more than the object header prefix size to work at all and
* should be larger than the largest object type's default object header
* size to save the extra I/O operations) */
#define H5O_SPEC_READ_SIZE 512
/* The "message class" type */
struct H5O_msg_class_t {
unsigned id; /*message type ID on disk */
const char *name; /*for debugging */
size_t native_size; /*size of native message */
unsigned share_flags; /* Message sharing settings */
void *(*decode)(H5F_t *, H5O_t *, unsigned, unsigned *, size_t, const uint8_t *);
herr_t (*encode)(H5F_t *, hbool_t, uint8_t *, const void *);
void *(*copy)(const void *, void *); /*copy native value */
size_t (*raw_size)(const H5F_t *, hbool_t, const void *); /*sizeof encoded message */
herr_t (*reset)(void *); /*free nested data structs */
herr_t (*free)(void *); /*free main data struct */
herr_t (*del)(H5F_t *, H5O_t *, void *); /* Delete space in file referenced by this message */
herr_t (*link)(H5F_t *, H5O_t *, void *); /* Increment any links in file reference by this message */
herr_t (*set_share)(void *, const H5O_shared_t *); /* Set shared information */
htri_t (*can_share)(const void *); /* Is message allowed to be shared? */
herr_t (*pre_copy_file)(H5F_t *, const void *, hbool_t *, const H5O_copy_t *,
void *); /*"pre copy" action when copying native value to file */
void *(*copy_file)(H5F_t *, void *, H5F_t *, hbool_t *, unsigned *, H5O_copy_t *,
void *); /*copy native value to file */
herr_t (*post_copy_file)(const H5O_loc_t *, const void *, H5O_loc_t *, void *, unsigned *,
H5O_copy_t *); /*"post copy" action when copying native value to file */
herr_t (*get_crt_index)(const void *, H5O_msg_crt_idx_t *); /* Get message's creation index */
herr_t (*set_crt_index)(void *, H5O_msg_crt_idx_t); /* Set message's creation index */
herr_t (*debug)(H5F_t *, const void *, FILE *, int, int);
};
struct H5O_mesg_t {
const H5O_msg_class_t *type; /* type of message */
hbool_t dirty; /* raw out of date wrt native */
uint8_t flags; /* message flags */
H5O_msg_crt_idx_t crt_idx; /* message creation index */
unsigned chunkno; /* chunk number for this mesg */
void * native; /* native format message */
uint8_t * raw; /* pointer to raw data */
size_t raw_size; /* size with alignment */
};
/* Struct for storing information about "best" message to move to new chunk */
typedef struct H5O_msg_alloc_info_t {
int msgno; /* Index in message array */
unsigned id; /* Message type ID on disk */
unsigned chunkno; /* Index in chunk array */
size_t gap_size; /* Size of any "gap" in the chunk immediately after message */
size_t null_size; /* Size of any null message in the chunk immediately after message */
size_t total_size; /* Total size of "available" space around message */
unsigned null_msgno; /* Message index of null message immediately after message */
} H5O_msg_alloc_info_t;
typedef struct H5O_chunk_t {
haddr_t addr; /*chunk file address */
size_t size; /*chunk size */
size_t gap; /*space at end of chunk too small for null message */
uint8_t * image; /*image of file */
struct H5O_chunk_proxy_t *chunk_proxy; /* Pointer to a chunk's proxy when chunk protected */
} H5O_chunk_t;
struct H5O_t {
H5AC_info_t cache_info; /* Information for metadata cache functions, _must_ be */
/* first field in structure */
/* File-specific information (not stored) */
size_t sizeof_size; /* Size of file sizes */
size_t sizeof_addr; /* Size of file addresses */
hbool_t swmr_write; /* Whether we are doing SWMR writes */
/* Debugging information (not stored) */
#ifdef H5O_ENABLE_BAD_MESG_COUNT
hbool_t store_bad_mesg_count; /* Flag to indicate that a bad message count should be stored */
/* (This is to simulate a bug in earlier
* versions of the library)
*/
#endif /* H5O_ENABLE_BAD_MESG_COUNT */
#ifndef NDEBUG
size_t ndecode_dirtied; /* Number of messages dirtied by decoding */
#endif /* NDEBUG */
/* Chunk management information (not stored) */
size_t rc; /* Reference count of [continuation] chunks using this structure */
/* Object information (stored) */
hbool_t has_refcount_msg; /* Whether the object has a ref. count message */
unsigned nlink; /*link count */
uint8_t version; /*version number */
uint8_t flags; /*flags */
/* Time information (stored, for versions > 1 & H5O_HDR_STORE_TIMES flag set) */
time_t atime; /*access time */
time_t mtime; /*modification time */
time_t ctime; /*change time */
time_t btime; /*birth time */
/* Attribute information (stored, for versions > 1) */
unsigned max_compact; /* Maximum # of compact attributes */
unsigned min_dense; /* Minimum # of "dense" attributes */
/* Message management (stored, encoded in chunks) */
size_t nmesgs; /*number of messages */
size_t alloc_nmesgs; /*number of message slots */
H5O_mesg_t *mesg; /*array of messages */
size_t link_msgs_seen; /* # of link messages seen when loading header */
size_t attr_msgs_seen; /* # of attribute messages seen when loading header */
/* Chunk management (not stored) */
size_t nchunks; /*number of chunks */
size_t alloc_nchunks; /*chunks allocated */
H5O_chunk_t *chunk; /*array of chunks */
hbool_t chunks_pinned; /* Whether chunks are pinned from ohdr protect */
/* Object header proxy information (not stored) */
H5AC_proxy_entry_t *proxy; /* Proxy cache entry for all ohdr entries */
};
/* Class for types of objects in file */
typedef struct H5O_obj_class_t {
H5O_type_t type; /*object type on disk */
const char *name; /*for debugging */
void *(*get_copy_file_udata)(void); /*retrieve user data for 'copy file' operation */
void (*free_copy_file_udata)(void *); /*free user data for 'copy file' operation */
htri_t (*isa)(const H5O_t *); /*if a header matches an object class */
void *(*open)(const H5G_loc_t *, H5I_type_t *); /*open an object of this class */
void *(*create)(H5F_t *, void *, H5G_loc_t *); /*create an object of this class */
H5O_loc_t *(*get_oloc)(hid_t); /*get the object header location for an object */
herr_t (*bh_info)(const H5O_loc_t *loc, H5O_t *oh,
H5_ih_info_t *bh_info); /*get the index & heap info for an object */
herr_t (*flush)(void *obj_ptr); /*flush an opened object of this class */
} H5O_obj_class_t;
/* Node in skip list to map addresses from one file to another during object header copy */
typedef struct H5O_addr_map_t {
H5_obj_t src_obj_pos; /* Location of source object */
haddr_t dst_addr; /* Address of object in destination file */
hbool_t is_locked; /* Indicate that the destination object is locked currently */
hsize_t inc_ref_count; /* Number of deferred increments to reference count */
const H5O_obj_class_t *obj_class; /* Object class */
void * udata; /* Object class copy file udata */
} H5O_addr_map_t;
/* Stack of continuation messages to interpret */
typedef struct H5O_cont_msgs_t {
size_t nmsgs; /* Number of continuation messages found so far */
size_t alloc_nmsgs; /* Continuation messages allocated */
H5O_cont_t *msgs; /* Array of continuation messages */
} H5O_cont_msgs_t;
/* Common callback information for loading object header prefix from disk */
typedef struct H5O_common_cache_ud_t {
H5F_t * f; /* Pointer to file for object header/chunk */
unsigned file_intent; /* Read/write intent for file */
unsigned merged_null_msgs; /* Number of null messages merged together */
H5O_cont_msgs_t *cont_msg_info; /* Pointer to continuation messages to work on */
haddr_t addr; /* Address of the prefix or chunk */
} H5O_common_cache_ud_t;
/* Callback information for loading object header prefix from disk */
typedef struct H5O_cache_ud_t {
hbool_t made_attempt; /* Whether the deserialize routine was already attempted */
unsigned v1_pfx_nmesgs; /* Number of messages from v1 prefix header */
size_t chunk0_size; /* Size of serialized first chunk */
H5O_t * oh; /* Partially deserialized object header, for later use */
hbool_t free_oh; /* Whether to free the object header or not */
H5O_common_cache_ud_t common; /* Common object header cache callback info */
} H5O_cache_ud_t;
/* Structure representing each chunk in the cache */
typedef struct H5O_chunk_proxy_t {
H5AC_info_t cache_info; /* Information for metadata cache functions, _must_ be */
/* first field in structure */
H5F_t * f; /* Pointer to file for object header/chunk */
H5O_t * oh; /* Object header for this chunk */
unsigned chunkno; /* Chunk number for this chunk */
/* Flush dependency parent information (not stored)
*
* The following field is used to store a pointer
* to the in-core representation of a new chunk proxy's flush dependency
* parent -- if it exists. If it does not exist, this field will
* contain NULL.
*
* If the file is opened in SWMR write mode, the flush dependency
* parent of the chunk proxy will be either its object header
* or the chunk with the continuation message that references this chunk.
*/
void *fd_parent; /* Pointer to flush dependency parent */
} H5O_chunk_proxy_t;
/* Callback information for loading object header chunk from disk */
typedef struct H5O_chk_cache_ud_t {
hbool_t decoding; /* Whether the object header is being decoded */
H5O_t * oh; /* Object header for this chunk */
unsigned chunkno; /* Index of chunk being brought in (for re-loads) */
size_t size; /* Size of chunk in the file */
H5O_common_cache_ud_t common; /* Common object header cache callback info */
} H5O_chk_cache_ud_t;
/* Header message ID to class mapping */
H5_DLLVAR const H5O_msg_class_t *const H5O_msg_class_g[H5O_MSG_TYPES];
/* Declare external the free list for H5O_t's */
H5FL_EXTERN(H5O_t);
/* Declare external the free list for H5O_mesg_t sequences */
H5FL_SEQ_EXTERN(H5O_mesg_t);
/* Declare external the free list for H5O_chunk_t sequences */
H5FL_SEQ_EXTERN(H5O_chunk_t);
/* Declare external the free list for chunk_image blocks */
H5FL_BLK_EXTERN(chunk_image);
/*
* Object header messages
*/
/* Null Message. (0x0000) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_NULL[1];
/* Simple Dataspace Message. (0x0001) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_SDSPACE[1];
/* Link Information Message. (0x0002) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_LINFO[1];
/* Datatype Message. (0x0003) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_DTYPE[1];
/* Old Fill Value Message. (0x0004) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_FILL[1];
/* New Fill Value Message. (0x0005) */
/*
* The new fill value message is fill value plus
* space allocation time and fill value writing time and whether fill
* value is defined.
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_FILL_NEW[1];
/* Link Message. (0x0006) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_LINK[1];
/* External File List Message. (0x0007) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_EFL[1];
/* Data Layout Message. (0x0008) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_LAYOUT[1];
#ifdef H5O_ENABLE_BOGUS
/* "Bogus valid" Message. (0x0009) */
/* "Bogus invalid" Message. (0x0019) */
/*
* Used for debugging - should never be found in valid HDF5 file.
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_BOGUS_VALID[1];
H5_DLLVAR const H5O_msg_class_t H5O_MSG_BOGUS_INVALID[1];
#endif /* H5O_ENABLE_BOGUS */
/* Group Information Message. (0x000a) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_GINFO[1];
/* Filter pipeline message. (0x000b) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_PLINE[1];
/* Attribute Message. (0x000c) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_ATTR[1];
/* Object name message. (0x000d) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_NAME[1];
/* Modification Time Message. (0x000e) */
/*
* The message is just a `time_t'.
* (See also the "new" modification time message)
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_MTIME[1];
/* Shared Message information message (0x000f)
* A message for the superblock extension, holding information about
* the file-wide shared message "SOHM" table
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_SHMESG[1];
/* Object Header Continuation Message. (0x0010) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_CONT[1];
/* Symbol Table Message. (0x0011) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_STAB[1];
/* New Modification Time Message. (0x0012) */
/*
* The message is just a `time_t'.
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_MTIME_NEW[1];
/* v1 B-tree 'K' value message (0x0013)
* A message for the superblock extension, holding information about
* the file-wide v1 B-tree 'K' values.
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_BTREEK[1];
/* Driver info message (0x0014)
* A message for the superblock extension, holding information about
* the file driver settings
*/
H5_DLLVAR const H5O_msg_class_t H5O_MSG_DRVINFO[1];
/* Attribute Information Message. (0x0015) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_AINFO[1];
/* Reference Count Message. (0x0016) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_REFCOUNT[1];
/* Free-space Manager Info message. (0x0017) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_FSINFO[1];
/* Metadata Cache Image message. (0x0018) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_MDCI[1];
/* Placeholder for unknown message. (0x0019) */
H5_DLLVAR const H5O_msg_class_t H5O_MSG_UNKNOWN[1];
/*
* Object header "object" types
*/
/* Group Object. (H5O_TYPE_GROUP - 0) */
H5_DLLVAR const H5O_obj_class_t H5O_OBJ_GROUP[1];
/* Dataset Object. (H5O_TYPE_DATASET - 1) */
H5_DLLVAR const H5O_obj_class_t H5O_OBJ_DATASET[1];
/* Datatype Object. (H5O_TYPE_NAMED_DATATYPE - 2) */
H5_DLLVAR const H5O_obj_class_t H5O_OBJ_DATATYPE[1];
/* Package-local function prototypes */
H5_DLL void *H5O__open_by_addr(const H5G_loc_t *loc, haddr_t addr, H5I_type_t *opened_type /*out*/);
H5_DLL void *H5O__open_by_idx(const H5G_loc_t *loc, const char *name, H5_index_t idx_type,
H5_iter_order_t order, hsize_t n, H5I_type_t *opened_type /*out*/);
H5_DLL const H5O_obj_class_t *H5O__obj_class(const H5O_loc_t *loc);
H5_DLL herr_t H5O__copy(const H5G_loc_t *src_loc, const char *src_name, H5G_loc_t *dst_loc,
const char *dst_name, hid_t ocpypl_id, hid_t lcpl_id);
H5_DLL int H5O__link_oh(H5F_t *f, int adjust, H5O_t *oh, hbool_t *deleted);
H5_DLL herr_t H5O__visit(H5G_loc_t *loc, const char *obj_name, H5_index_t idx_type, H5_iter_order_t order,
H5O_iterate2_t op, void *op_data, unsigned fields);
H5_DLL herr_t H5O__inc_rc(H5O_t *oh);
H5_DLL herr_t H5O__dec_rc(H5O_t *oh);
H5_DLL herr_t H5O__free(H5O_t *oh, hbool_t force);
/* Object header message routines */
H5_DLL herr_t H5O__msg_alloc(H5F_t *f, H5O_t *oh, const H5O_msg_class_t *type, unsigned *mesg_flags,
void *mesg, size_t *mesg_idx);
H5_DLL herr_t H5O__msg_append_real(H5F_t *f, H5O_t *oh, const H5O_msg_class_t *type, unsigned mesg_flags,
unsigned update_flags, void *mesg);
H5_DLL herr_t H5O__msg_write_real(H5F_t *f, H5O_t *oh, const H5O_msg_class_t *type, unsigned mesg_flags,
unsigned update_flags, void *mesg);
H5_DLL herr_t H5O__msg_free_mesg(H5O_mesg_t *mesg);
H5_DLL unsigned H5O__msg_count_real(const H5O_t *oh, const H5O_msg_class_t *type);
H5_DLL herr_t H5O__msg_remove_real(H5F_t *f, H5O_t *oh, const H5O_msg_class_t *type, int sequence,
H5O_operator_t op, void *op_data, hbool_t adj_link);
H5_DLL void *H5O__msg_copy_file(const H5O_msg_class_t *type, H5F_t *file_src, void *mesg_src, H5F_t *file_dst,
hbool_t *recompute_size, unsigned *mesg_flags, H5O_copy_t *cpy_info,
void *udata);
H5_DLL herr_t H5O__msg_iterate_real(H5F_t *f, H5O_t *oh, const H5O_msg_class_t *type,
const H5O_mesg_operator_t *op, void *op_data);
H5_DLL herr_t H5O__flush_msgs(H5F_t *f, H5O_t *oh);
H5_DLL herr_t H5O__delete_mesg(H5F_t *f, H5O_t *open_oh, H5O_mesg_t *mesg);
/* Object header chunk routines */
H5_DLL herr_t H5O__chunk_add(H5F_t *f, H5O_t *oh, unsigned idx, unsigned cont_chunkno);
H5_DLL H5O_chunk_proxy_t *H5O__chunk_protect(H5F_t *f, H5O_t *oh, unsigned idx);
H5_DLL herr_t H5O__chunk_unprotect(H5F_t *f, H5O_chunk_proxy_t *chk_proxy, hbool_t chk_dirtied);
H5_DLL herr_t H5O__chunk_update_idx(H5F_t *f, H5O_t *oh, unsigned idx);
H5_DLL herr_t H5O__chunk_resize(H5O_t *oh, H5O_chunk_proxy_t *chk_proxy);
H5_DLL herr_t H5O__chunk_delete(H5F_t *f, H5O_t *oh, unsigned idx);
H5_DLL herr_t H5O__chunk_dest(H5O_chunk_proxy_t *chunk_proxy);
/* Cache corking functions */
H5_DLL herr_t H5O__disable_mdc_flushes(H5O_loc_t *oloc);
H5_DLL herr_t H5O__enable_mdc_flushes(H5O_loc_t *oloc);
H5_DLL herr_t H5O__are_mdc_flushes_disabled(const H5O_loc_t *oloc, hbool_t *are_disabled);
/* Collect storage info for btree and heap */
H5_DLL herr_t H5O__attr_bh_info(H5F_t *f, H5O_t *oh, H5_ih_info_t *bh_info);
/* Object header allocation routines */
H5_DLL herr_t H5O__alloc_msgs(H5O_t *oh, size_t min_alloc);
H5_DLL herr_t H5O__alloc_chunk(H5F_t *f, H5O_t *oh, size_t size, size_t found_null,
const H5O_msg_alloc_info_t *found_msg, size_t *new_idx);
H5_DLL herr_t H5O__alloc(H5F_t *f, H5O_t *oh, const H5O_msg_class_t *type, const void *mesg,
size_t *mesg_idx);
H5_DLL herr_t H5O__condense_header(H5F_t *f, H5O_t *oh);
H5_DLL herr_t H5O__release_mesg(H5F_t *f, H5O_t *oh, H5O_mesg_t *mesg, hbool_t adj_link);
/* Shared object operators */
H5_DLL void * H5O__shared_decode(H5F_t *f, H5O_t *open_oh, unsigned *ioflags, const uint8_t *buf,
const H5O_msg_class_t *type);
H5_DLL herr_t H5O__shared_encode(const H5F_t *f, uint8_t *buf /*out*/, const H5O_shared_t *sh_mesg);
H5_DLL size_t H5O__shared_size(const H5F_t *f, const H5O_shared_t *sh_mesg);
H5_DLL herr_t H5O__shared_delete(H5F_t *f, H5O_t *open_oh, const H5O_msg_class_t *mesg_type,
H5O_shared_t *sh_mesg);
H5_DLL herr_t H5O__shared_link(H5F_t *f, H5O_t *open_oh, const H5O_msg_class_t *mesg_type,
H5O_shared_t *sh_mesg);
H5_DLL herr_t H5O__shared_copy_file(H5F_t *file_src, H5F_t *file_dst, const H5O_msg_class_t *mesg_type,
const void *_native_src, void *_native_dst, hbool_t *recompute_size,
unsigned *mesg_flags, H5O_copy_t *cpy_info, void *udata);
H5_DLL herr_t H5O__shared_post_copy_file(H5F_t *f, const H5O_msg_class_t *mesg_type,
const H5O_shared_t *shared_src, H5O_shared_t *shared_dst,
unsigned *mesg_flags, H5O_copy_t *cpy_info);
H5_DLL herr_t H5O__shared_debug(const H5O_shared_t *mesg, FILE *stream, int indent, int fwidth);
/* Attribute message operators */
H5_DLL herr_t H5O__attr_reset(void *_mesg);
H5_DLL herr_t H5O__attr_delete(H5F_t *f, H5O_t *open_oh, void *_mesg);
H5_DLL herr_t H5O__attr_link(H5F_t *f, H5O_t *open_oh, void *_mesg);
H5_DLL herr_t H5O__attr_count_real(H5F_t *f, H5O_t *oh, hsize_t *nattrs);
/* Arrays of versions for:
* Object header, Attribute/Fill value/Filter pipeline messages
*/
/* Layout/Datatype/Dataspace arrays of versions are in H5Dpkg.h, H5Tpkg.h and H5Spkg.h */
H5_DLLVAR const unsigned H5O_obj_ver_bounds[H5F_LIBVER_NBOUNDS];
H5_DLLVAR const unsigned H5O_attr_ver_bounds[H5F_LIBVER_NBOUNDS];
H5_DLLVAR const unsigned H5O_fill_ver_bounds[H5F_LIBVER_NBOUNDS];
H5_DLLVAR const unsigned H5O_pline_ver_bounds[H5F_LIBVER_NBOUNDS];
/* Testing functions */
#ifdef H5O_TESTING
H5_DLL htri_t H5O__is_attr_empty_test(hid_t oid);
H5_DLL htri_t H5O__is_attr_dense_test(hid_t oid);
H5_DLL herr_t H5O__num_attrs_test(hid_t oid, hsize_t *nattrs);
H5_DLL herr_t H5O__attr_dense_info_test(hid_t oid, hsize_t *name_count, hsize_t *corder_count);
H5_DLL herr_t H5O__check_msg_marked_test(hid_t oid, hbool_t flag_val);
H5_DLL herr_t H5O__expunge_chunks_test(const H5O_loc_t *oloc);
H5_DLL herr_t H5O__get_rc_test(const H5O_loc_t *oloc, unsigned *rc);
H5_DLL herr_t H5O__msg_get_chunkno_test(hid_t oid, unsigned msg_type, unsigned *chunk_num);
H5_DLL herr_t H5O__msg_move_to_new_chunk_test(hid_t oid, unsigned msg_type);
#endif /* H5O_TESTING */
/* Object header debugging routines */
#ifdef H5O_DEBUG
H5_DLL herr_t H5O__assert(const H5O_t *oh);
#endif /* H5O_DEBUG */
H5_DLL herr_t H5O__debug_real(H5F_t *f, H5O_t *oh, haddr_t addr, FILE *stream, int indent, int fwidth);
#endif /* H5Opkg_H */