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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 files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: H5Olinfo.c
* Aug 23 2005
* Quincey Koziol <koziol@ncsa.uiuc.edu>
*
* Purpose: Link Information messages.
*
*-------------------------------------------------------------------------
*/
#define H5G_PACKAGE /*suppress error about including H5Gpkg */
#define H5L_PACKAGE /*suppress error about including H5Lpkg */
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5FLprivate.h" /* Free lists */
#include "H5Gpkg.h" /* Groups */
#include "H5Lpkg.h" /* Links */
#include "H5Opkg.h" /* Object headers */
/* PRIVATE PROTOTYPES */
static void *H5O_linfo_decode(H5F_t *f, hid_t dxpl_id, H5O_t *open_oh,
unsigned mesg_flags, unsigned *ioflags, const uint8_t *p);
static herr_t H5O_linfo_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static void *H5O_linfo_copy(const void *_mesg, void *_dest);
static size_t H5O_linfo_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O_linfo_free(void *_mesg);
static herr_t H5O_linfo_delete(H5F_t *f, hid_t dxpl_id, H5O_t *open_oh,
void *_mesg);
static void *H5O_linfo_copy_file(H5F_t *file_src, void *native_src,
H5F_t *file_dst, hbool_t *recompute_size, unsigned *mesg_flags,
H5O_copy_t *cpy_info, void *udata, hid_t dxpl_id);
static herr_t H5O_linfo_post_copy_file(const H5O_loc_t *parent_src_oloc,
const void *mesg_src, H5O_loc_t *dst_oloc, void *mesg_dst,
unsigned *mesg_flags, hid_t dxpl_id, H5O_copy_t *cpy_info);
static herr_t H5O_linfo_debug(H5F_t *f, hid_t dxpl_id, const void *_mesg,
FILE * stream, int indent, int fwidth);
/* This message derives from H5O message class */
const H5O_msg_class_t H5O_MSG_LINFO[1] = {{
H5O_LINFO_ID, /*message id number */
"linfo", /*message name for debugging */
sizeof(H5O_linfo_t), /*native message size */
0, /* messages are sharable? */
H5O_linfo_decode, /*decode message */
H5O_linfo_encode, /*encode message */
H5O_linfo_copy, /*copy the native value */
H5O_linfo_size, /*size of symbol table entry */
NULL, /*default reset method */
H5O_linfo_free, /* free method */
H5O_linfo_delete, /* file delete method */
NULL, /* link method */
NULL, /*set share method */
NULL, /*can share method */
NULL, /* pre copy native value to file */
H5O_linfo_copy_file, /* copy native value to file */
H5O_linfo_post_copy_file, /* post copy native value to file */
NULL, /* get creation index */
NULL, /* set creation index */
H5O_linfo_debug /*debug the message */
}};
/* Current version of link info information */
#define H5O_LINFO_VERSION 0
/* Flags for link info index flag encoding */
#define H5O_LINFO_TRACK_CORDER 0x01
#define H5O_LINFO_INDEX_CORDER 0x02
#define H5O_LINFO_ALL_FLAGS (H5O_LINFO_TRACK_CORDER | H5O_LINFO_INDEX_CORDER)
/* Data exchange structure to use when copying links from src to dst */
typedef struct {
const H5O_loc_t *src_oloc; /* Source object location */
H5O_loc_t *dst_oloc; /* Destination object location */
H5O_linfo_t *dst_linfo; /* Destination object's link info message */
hid_t dxpl_id; /* DXPL for operation */
H5O_copy_t *cpy_info; /* Information for copy operation */
} H5O_linfo_postcopy_ud_t;
/* Declare a free list to manage the H5O_linfo_t struct */
H5FL_DEFINE_STATIC(H5O_linfo_t);
/*-------------------------------------------------------------------------
* Function: H5O_linfo_decode
*
* Purpose: Decode a message and return a pointer to a newly allocated one.
*
* Return: Success: Ptr to new message in native form.
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Aug 23 2005
*
*-------------------------------------------------------------------------
*/
static void *
H5O_linfo_decode(H5F_t *f, hid_t H5_ATTR_UNUSED dxpl_id, H5O_t H5_ATTR_UNUSED *open_oh,
unsigned H5_ATTR_UNUSED mesg_flags, unsigned H5_ATTR_UNUSED *ioflags, const uint8_t *p)
{
H5O_linfo_t *linfo = NULL; /* Link info */
unsigned char index_flags; /* Flags for encoding link index info */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* check args */
HDassert(f);
HDassert(p);
/* Version of message */
if(*p++ != H5O_LINFO_VERSION)
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for message")
/* Allocate space for message */
if(NULL == (linfo = H5FL_MALLOC(H5O_linfo_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* Get the index flags for the group */
index_flags = *p++;
if(index_flags & ~H5O_LINFO_ALL_FLAGS)
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad flag value for message")
linfo->track_corder = (index_flags & H5O_LINFO_TRACK_CORDER) ? TRUE : FALSE;
linfo->index_corder = (index_flags & H5O_LINFO_INDEX_CORDER) ? TRUE : FALSE;
/* Set the number of links in the group to an invalid value, so we query it later */
linfo->nlinks = HSIZET_MAX;
/* Max. link creation order value for the group, if tracked */
if(linfo->track_corder)
INT64DECODE(p, linfo->max_corder)
else
linfo->max_corder = 0;
/* Address of fractal heap to store "dense" links */
H5F_addr_decode(f, &p, &(linfo->fheap_addr));
/* Address of v2 B-tree to index names of links (names are always indexed) */
H5F_addr_decode(f, &p, &(linfo->name_bt2_addr));
/* Address of v2 B-tree to index creation order of links, if there is one */
if(linfo->index_corder)
H5F_addr_decode(f, &p, &(linfo->corder_bt2_addr));
else
linfo->corder_bt2_addr = HADDR_UNDEF;
/* Set return value */
ret_value = linfo;
done:
if(ret_value == NULL)
if(linfo != NULL)
linfo = H5FL_FREE(H5O_linfo_t, linfo);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_linfo_decode() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_encode
*
* Purpose: Encodes a message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Aug 23 2005
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_linfo_encode(H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p, const void *_mesg)
{
const H5O_linfo_t *linfo = (const H5O_linfo_t *)_mesg;
unsigned char index_flags; /* Flags for encoding link index info */
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* check args */
HDassert(f);
HDassert(p);
HDassert(linfo);
/* Message version */
*p++ = H5O_LINFO_VERSION;
/* The flags for the link indices */
index_flags = linfo->track_corder ? H5O_LINFO_TRACK_CORDER : 0;
index_flags = (uint8_t)(index_flags | (linfo->index_corder ? H5O_LINFO_INDEX_CORDER : 0));
*p++ = index_flags;
/* Max. link creation order value for the group, if tracked */
if(linfo->track_corder)
INT64ENCODE(p, linfo->max_corder)
/* Address of fractal heap to store "dense" links */
H5F_addr_encode(f, &p, linfo->fheap_addr);
/* Address of v2 B-tree to index names of links */
H5F_addr_encode(f, &p, linfo->name_bt2_addr);
/* Address of v2 B-tree to index creation order of links, if they are indexed */
if(linfo->index_corder)
H5F_addr_encode(f, &p, linfo->corder_bt2_addr);
else
HDassert(!H5F_addr_defined(linfo->corder_bt2_addr));
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_linfo_encode() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_copy
*
* Purpose: Copies a message from _MESG to _DEST, allocating _DEST if
* necessary.
*
* Return: Success: Ptr to _DEST
* Failure: NULL
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Aug 23 2005
*
*-------------------------------------------------------------------------
*/
static void *
H5O_linfo_copy(const void *_mesg, void *_dest)
{
const H5O_linfo_t *linfo = (const H5O_linfo_t *)_mesg;
H5O_linfo_t *dest = (H5O_linfo_t *) _dest;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* check args */
HDassert(linfo);
if(!dest && NULL == (dest = H5FL_MALLOC(H5O_linfo_t)))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* copy */
*dest = *linfo;
/* Set return value */
ret_value = dest;
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_linfo_copy() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_size
*
* Purpose: Returns the size of the raw message in bytes not counting
* the message type or size fields, but only the data fields.
* This function doesn't take into account alignment.
*
* Return: Success: Message data size in bytes without alignment.
* Failure: zero
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Aug 23 2005
*
*-------------------------------------------------------------------------
*/
static size_t
H5O_linfo_size(const H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, const void *_mesg)
{
const H5O_linfo_t *linfo = (const H5O_linfo_t *)_mesg;
size_t ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Set return value */
ret_value = 1 /* Version */
+ 1 /* Index flags */
+ (linfo->track_corder ? (size_t)8 : 0) /* Curr. max. creation order value */
+ (size_t)H5F_SIZEOF_ADDR(f) /* Address of fractal heap to store "dense" links */
+ (size_t)H5F_SIZEOF_ADDR(f) /* Address of v2 B-tree for indexing names of links */
+ (linfo->index_corder ? (size_t)H5F_SIZEOF_ADDR(f) : 0); /* Address of v2 B-tree for indexing creation order values of links */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_linfo_size() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_free
*
* Purpose: Free's the message
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Tuesday, August 23, 2005
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_linfo_free(void *mesg)
{
FUNC_ENTER_NOAPI_NOINIT_NOERR
HDassert(mesg);
mesg = H5FL_FREE(H5O_linfo_t, mesg);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_linfo_free() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_delete
*
* Purpose: Free file space referenced by message
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* Saturday, September 16, 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_linfo_delete(H5F_t *f, hid_t dxpl_id, H5O_t H5_ATTR_UNUSED *open_oh, void *_mesg)
{
H5O_linfo_t *linfo = (H5O_linfo_t *)_mesg;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* check args */
HDassert(f);
HDassert(linfo);
/* If the group is using "dense" link storage, delete it */
if(H5F_addr_defined(linfo->fheap_addr))
if(H5G__dense_delete(f, dxpl_id, linfo, TRUE) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTFREE, FAIL, "unable to free dense link storage")
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_linfo_delete() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_copy_file
*
* Purpose: Copies a message from _MESG to _DEST in file
*
* Return: Success: Ptr to _DEST
*
* Failure: NULL
*
* Programmer: Quincey Koziol
* June 26, 2006
*
*-------------------------------------------------------------------------
*/
static void *
H5O_linfo_copy_file(H5F_t H5_ATTR_UNUSED *file_src, void *native_src, H5F_t *file_dst,
hbool_t H5_ATTR_UNUSED *recompute_size, unsigned H5_ATTR_UNUSED *mesg_flags,
H5O_copy_t *cpy_info, void *_udata, hid_t dxpl_id)
{
H5O_linfo_t *linfo_src = (H5O_linfo_t *) native_src;
H5O_linfo_t *linfo_dst = NULL;
H5G_copy_file_ud_t *udata = (H5G_copy_file_ud_t *) _udata;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* check args */
HDassert(linfo_src);
HDassert(cpy_info);
/* Copy the source message */
if(NULL == (linfo_dst = (H5O_linfo_t *)H5O_linfo_copy(linfo_src, NULL)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, NULL, "memory allocation failed")
/* If we are performing a 'shallow hierarchy' copy, and the links in this
* group won't be included in the destination, reset the link info for
* this group.
*/
if(cpy_info->max_depth >= 0 && cpy_info->curr_depth >= cpy_info->max_depth) {
linfo_dst->nlinks = 0;
linfo_dst->max_corder = 0;
linfo_dst->fheap_addr = HADDR_UNDEF;
linfo_dst->name_bt2_addr = HADDR_UNDEF;
linfo_dst->corder_bt2_addr = HADDR_UNDEF;
} /* end if */
else {
/* Create the components of the dense link storage for the destination group */
/* (XXX: should probably get the "creation" parameters for the source group's
* dense link storage components and use those - QAK)
*/
if(H5F_addr_defined(linfo_src->fheap_addr)) {
/* Create the dense link storage */
if(H5G__dense_create(file_dst, dxpl_id, linfo_dst, udata->common.src_pline) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTINIT, NULL, "unable to create 'dense' form of new format group")
} /* end if */
} /* end else */
/* Set return value */
ret_value = linfo_dst;
done:
if(!ret_value)
if(linfo_dst)
linfo_dst = H5FL_FREE(H5O_linfo_t, linfo_dst);
FUNC_LEAVE_NOAPI(ret_value)
} /* H5O_linfo_copy_file() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_post_copy_file_cb
*
* Purpose: Callback routine for copying links from src to dst file
* during "post copy" routine
*
* Return: Success: Non-negative
* Failure: Negative
*
* Programmer: Quincey Koziol
* koziol@hdfgroup.org
* Sept 26 2006
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_linfo_post_copy_file_cb(const H5O_link_t *src_lnk, void *_udata)
{
H5O_linfo_postcopy_ud_t *udata = (H5O_linfo_postcopy_ud_t *)_udata; /* 'User data' passed in */
H5O_link_t dst_lnk; /* Destination link to insert */
hbool_t dst_lnk_init = FALSE; /* Whether the destination link is initialized */
herr_t ret_value = H5_ITER_CONT; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Check arguments */
HDassert(src_lnk);
HDassert(udata);
/* Copy the link (and the object it points to) */
if(H5L_link_copy_file(udata->dst_oloc->file, udata->dxpl_id, src_lnk,
udata->src_oloc, &dst_lnk, udata->cpy_info) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTCOPY, H5_ITER_ERROR, "unable to copy link")
dst_lnk_init = TRUE;
/* Insert the new object in the destination file's group */
/* (Doesn't increment the link count - that's already been taken care of for hard links) */
if(H5G__dense_insert(udata->dst_oloc->file, udata->dxpl_id, udata->dst_linfo, &dst_lnk) < 0)
HGOTO_ERROR(H5E_OHDR, H5E_CANTINSERT, H5_ITER_ERROR, "unable to insert destination link")
done:
/* Check if the destination link has been initialized */
if(dst_lnk_init)
H5O_msg_reset(H5O_LINK_ID, &dst_lnk);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_linfo_post_copy_file_cb() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_post_copy_file
*
* Purpose: Finish copying a message from between files
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* September 26, 2005
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_linfo_post_copy_file(const H5O_loc_t *src_oloc, const void *mesg_src,
H5O_loc_t *dst_oloc, void *mesg_dst, unsigned H5_ATTR_UNUSED *mesg_flags,
hid_t dxpl_id, H5O_copy_t *cpy_info)
{
const H5O_linfo_t *linfo_src = (const H5O_linfo_t *)mesg_src;
H5O_linfo_t *linfo_dst = (H5O_linfo_t *)mesg_dst;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* check args */
HDassert(src_oloc && src_oloc->file);
HDassert(linfo_src);
HDassert(dst_oloc && dst_oloc->file);
HDassert(H5F_addr_defined(dst_oloc->addr));
HDassert(linfo_dst);
HDassert(cpy_info);
/* If we are performing a 'shallow hierarchy' copy, get out now */
if(cpy_info->max_depth >= 0 && cpy_info->curr_depth >= cpy_info->max_depth)
HGOTO_DONE(SUCCEED)
/* Check for copying dense link storage */
if(H5F_addr_defined(linfo_src->fheap_addr)) {
H5O_linfo_postcopy_ud_t udata; /* User data for iteration callback */
/* Set up dense link iteration user data */
udata.src_oloc = src_oloc;
udata.dst_oloc = dst_oloc;
udata.dst_linfo = linfo_dst;
udata.dxpl_id = dxpl_id;
udata.cpy_info = cpy_info;
/* Iterate over the links in the group, building a table of the link messages */
if(H5G__dense_iterate(src_oloc->file, dxpl_id, linfo_src, H5_INDEX_NAME, H5_ITER_NATIVE, (hsize_t)0, NULL, H5O_linfo_post_copy_file_cb, &udata) < 0)
HGOTO_ERROR(H5E_SYM, H5E_CANTNEXT, FAIL, "error iterating over links")
} /* end if */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5O_linfo_post_copy_file() */
/*-------------------------------------------------------------------------
* Function: H5O_linfo_debug
*
* Purpose: Prints debugging info for a message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Quincey Koziol
* koziol@ncsa.uiuc.edu
* Aug 23 2005
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_linfo_debug(H5F_t H5_ATTR_UNUSED *f, hid_t H5_ATTR_UNUSED dxpl_id, const void *_mesg, FILE * stream,
int indent, int fwidth)
{
const H5O_linfo_t *linfo = (const H5O_linfo_t *) _mesg;
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* check args */
HDassert(f);
HDassert(linfo);
HDassert(stream);
HDassert(indent >= 0);
HDassert(fwidth >= 0);
HDfprintf(stream, "%*s%-*s %t\n", indent, "", fwidth,
"Track creation order of links:", linfo->track_corder);
HDfprintf(stream, "%*s%-*s %t\n", indent, "", fwidth,
"Index creation order of links:", linfo->index_corder);
HDfprintf(stream, "%*s%-*s %Hu\n", indent, "", fwidth,
"Number of links:", linfo->nlinks);
HDfprintf(stream, "%*s%-*s %Hd\n", indent, "", fwidth,
"Max. creation order value:", linfo->max_corder);
HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth,
"'Dense' link storage fractal heap address:", linfo->fheap_addr);
HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth,
"'Dense' link storage name index v2 B-tree address:", linfo->name_bt2_addr);
HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth,
"'Dense' link storage creation order index v2 B-tree address:", linfo->corder_bt2_addr);
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_linfo_debug() */
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