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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Tuesday, November 25, 1997
*/
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5Fprivate.h" /* File access */
#include "H5HLprivate.h" /* Local Heaps */
#include "H5MMprivate.h" /* Memory management */
#include "H5Opkg.h" /* Object headers */
/* PRIVATE PROTOTYPES */
static void *H5O_efl_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_efl_encode(H5F_t *f, hbool_t disable_shared, uint8_t *p, const void *_mesg);
static void *H5O_efl_copy(const void *_mesg, void *_dest);
static size_t H5O_efl_size(const H5F_t *f, hbool_t disable_shared, const void *_mesg);
static herr_t H5O_efl_reset(void *_mesg);
static void *H5O_efl_copy_file(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, hid_t dxpl_id);
static herr_t H5O_efl_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_EFL[1] = {{
H5O_EFL_ID, /*message id number */
"external file list", /*message name for debugging */
sizeof(H5O_efl_t), /*native message size */
0, /* messages are sharable? */
H5O_efl_decode, /*decode message */
H5O_efl_encode, /*encode message */
H5O_efl_copy, /*copy native value */
H5O_efl_size, /*size of message on disk */
H5O_efl_reset, /*reset method */
NULL, /* free method */
NULL, /* file delete method */
NULL, /* link method */
NULL, /*set share method */
NULL, /*can share method */
NULL, /* pre copy native value to file */
H5O_efl_copy_file, /* copy native value to file */
NULL, /* post copy native value to file */
NULL, /* get creation index */
NULL, /* set creation index */
H5O_efl_debug /*debug the message */
}};
#define H5O_EFL_VERSION 1
/*-------------------------------------------------------------------------
* Function: H5O_efl_decode
*
* Purpose: Decode an external file list message and return a pointer to
* the message (and some other data).
*
* Return: Success: Ptr to a new message struct.
*
* Failure: NULL
*
* Programmer: Robb Matzke
* Tuesday, November 25, 1997
*
* Modification:
* Raymond Lu
* 11 April 2011
* We allow zero dimension size starting from the 1.8.7 release.
* The dataset size of external storage can be zero.
*-------------------------------------------------------------------------
*/
static void *
H5O_efl_decode(H5F_t *f, hid_t 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_efl_t *mesg = NULL;
int version;
const char *s = NULL;
H5HL_t *heap;
size_t u; /* Local index variable */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* Check args */
HDassert(f);
HDassert(p);
if(NULL == (mesg = (H5O_efl_t *)H5MM_calloc(sizeof(H5O_efl_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* Version */
version = *p++;
if(version != H5O_EFL_VERSION)
HGOTO_ERROR(H5E_OHDR, H5E_CANTLOAD, NULL, "bad version number for external file list message")
/* Reserved */
p += 3;
/* Number of slots */
UINT16DECODE(p, mesg->nalloc);
HDassert(mesg->nalloc>0);
UINT16DECODE(p, mesg->nused);
HDassert(mesg->nused <= mesg->nalloc);
/* Heap address */
H5F_addr_decode(f, &p, &(mesg->heap_addr));
#ifndef NDEBUG
HDassert(H5F_addr_defined(mesg->heap_addr));
if(NULL == (heap = H5HL_protect(f, dxpl_id, mesg->heap_addr, H5AC_READ)))
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, NULL, "unable to read protect link value")
s = (const char *)H5HL_offset_into(heap, 0);
HDassert(s && !*s);
if(H5HL_unprotect(heap) < 0)
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, NULL, "unable to read unprotect link value")
heap = NULL;
#endif
/* Decode the file list */
mesg->slot = (H5O_efl_entry_t *)H5MM_calloc(mesg->nalloc * sizeof(H5O_efl_entry_t));
if(NULL == mesg->slot)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
if(NULL == (heap = H5HL_protect(f, dxpl_id, mesg->heap_addr, H5AC_READ)))
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, NULL, "unable to read protect link value")
for(u = 0; u < mesg->nused; u++) {
/* Name */
H5F_DECODE_LENGTH (f, p, mesg->slot[u].name_offset);
s = (const char *)H5HL_offset_into(heap, mesg->slot[u].name_offset);
HDassert(s && *s);
mesg->slot[u].name = H5MM_xstrdup (s);
HDassert(mesg->slot[u].name);
/* File offset */
H5F_DECODE_LENGTH (f, p, mesg->slot[u].offset);
/* Size */
H5F_DECODE_LENGTH (f, p, mesg->slot[u].size);
} /* end for */
if(H5HL_unprotect(heap) < 0)
HGOTO_ERROR(H5E_SYM, H5E_NOTFOUND, NULL, "unable to read unprotect link value")
heap = NULL;
/* Set return value */
ret_value = mesg;
done:
if(ret_value == NULL)
if(mesg != NULL)
H5MM_xfree(mesg);
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_efl_decode() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_encode
*
* Purpose: Encodes a message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, November 25, 1997
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_efl_encode(H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, uint8_t *p, const void *_mesg)
{
const H5O_efl_t *mesg = (const H5O_efl_t *)_mesg;
size_t u; /* Local index variable */
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* check args */
HDassert(f);
HDassert(mesg);
HDassert(p);
/* Version */
*p++ = H5O_EFL_VERSION;
/* Reserved */
*p++ = 0;
*p++ = 0;
*p++ = 0;
/* Number of slots */
HDassert(mesg->nalloc > 0);
UINT16ENCODE(p, mesg->nused); /*yes, twice*/
HDassert(mesg->nused > 0 && mesg->nused <= mesg->nalloc);
UINT16ENCODE(p, mesg->nused);
/* Heap address */
HDassert(H5F_addr_defined(mesg->heap_addr));
H5F_addr_encode(f, &p, mesg->heap_addr);
/* Encode file list */
for(u = 0; u < mesg->nused; u++) {
/*
* The name should have been added to the heap when the dataset was
* created.
*/
HDassert(mesg->slot[u].name_offset);
H5F_ENCODE_LENGTH(f, p, mesg->slot[u].name_offset);
H5F_ENCODE_LENGTH(f, p, (hsize_t)mesg->slot[u].offset);
H5F_ENCODE_LENGTH(f, p, mesg->slot[u].size);
} /* end for */
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_efl_encode() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_copy
*
* Purpose: Copies a message from _MESG to _DEST, allocating _DEST if
* necessary.
*
* Return: Success: Ptr to _DEST
*
* Failure: NULL
*
* Programmer: Robb Matzke
* Tuesday, November 25, 1997
*
*-------------------------------------------------------------------------
*/
static void *
H5O_efl_copy(const void *_mesg, void *_dest)
{
const H5O_efl_t *mesg = (const H5O_efl_t *) _mesg;
H5O_efl_t *dest = (H5O_efl_t *) _dest;
size_t u; /* Local index variable */
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT
/* check args */
HDassert(mesg);
if(!dest) {
if(NULL == (dest = (H5O_efl_t *)H5MM_calloc(sizeof(H5O_efl_t))))
HGOTO_ERROR(H5E_OHDR, H5E_CANTALLOC, NULL, "can't allocate efl message")
if(NULL == (dest->slot = (H5O_efl_entry_t *)H5MM_calloc(mesg->nalloc * sizeof(H5O_efl_entry_t))))
HGOTO_ERROR(H5E_OHDR, H5E_CANTALLOC, NULL, "can't allocate efl message slots")
} /* end if */
else if(dest->nalloc < mesg->nalloc) {
H5O_efl_entry_t *temp_slot; /* Temporary pointer to new slot information */
/* Allocate new 'slot' information */
if(NULL == (temp_slot = (H5O_efl_entry_t *)H5MM_calloc(mesg->nalloc * sizeof(H5O_efl_entry_t))))
HGOTO_ERROR(H5E_OHDR, H5E_CANTALLOC, NULL, "can't allocate efl message slots")
/* Release old 'slot' information */
for(u = 0; u < dest->nused; u++)
dest->slot[u].name = (char *)H5MM_xfree(dest->slot[u].name);
dest->slot = (H5O_efl_entry_t *)H5MM_xfree(dest->slot);
/* Point to new 'slot' information */
dest->slot = temp_slot;
} /* end if */
else {
/* Release old 'slot' information */
for(u = 0; u < dest->nused; u++)
dest->slot[u].name = (char *)H5MM_xfree(dest->slot[u].name);
} /* end else */
dest->heap_addr = mesg->heap_addr;
dest->nalloc = mesg->nalloc;
dest->nused = mesg->nused;
for(u = 0; u < mesg->nused; u++) {
dest->slot[u] = mesg->slot[u];
if(NULL == (dest->slot[u].name = H5MM_xstrdup(mesg->slot[u].name)))
HGOTO_ERROR(H5E_OHDR, H5E_CANTALLOC, NULL, "can't allocate efl message slot name")
} /* end for */
/* Set return value */
ret_value = dest;
done:
if(NULL == ret_value) {
if(dest && NULL == _dest) {
if(dest->slot) {
for(u = 0; u < mesg->nused; u++) {
if(dest->slot[u].name != NULL && dest->slot[u].name != mesg->slot[u].name)
dest->slot[u].name = (char *)H5MM_xfree(dest->slot[u].name);
} /* end for */
dest->slot = (H5O_efl_entry_t *)H5MM_xfree(dest->slot);
} /* end if */
dest = (H5O_efl_t *)H5MM_xfree(dest);
} /* end if */
} /* end if */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_efl_copy() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_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 message alignment. This
* function doesn't count unused slots.
*
* Return: Success: Message data size in bytes.
*
* Failure: 0
*
* Programmer: Robb Matzke
* Tuesday, November 25, 1997
*
*-------------------------------------------------------------------------
*/
static size_t
H5O_efl_size(const H5F_t *f, hbool_t H5_ATTR_UNUSED disable_shared, const void *_mesg)
{
const H5O_efl_t *mesg = (const H5O_efl_t *) _mesg;
size_t ret_value = 0;
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* check args */
HDassert(f);
HDassert(mesg);
ret_value = (size_t)H5F_SIZEOF_ADDR(f) + /*heap address */
2 + /*slots allocated*/
2 + /*num slots used*/
4 + /*reserved */
mesg->nused * ((size_t)H5F_SIZEOF_SIZE(f) + /*name offset */
(size_t)H5F_SIZEOF_SIZE(f) + /*file offset */
(size_t)H5F_SIZEOF_SIZE(f)); /*file size */
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_efl_size() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_reset
*
* Purpose: Frees internal pointers and resets the message to an
* initialial state.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, November 25, 1997
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_efl_reset(void *_mesg)
{
H5O_efl_t *mesg = (H5O_efl_t *) _mesg;
size_t u; /* Local index variable */
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* check args */
HDassert(mesg);
/* reset */
if(mesg->slot) {
for(u = 0; u < mesg->nused; u++)
mesg->slot[u].name = (char *)H5MM_xfree(mesg->slot[u].name);
mesg->slot = (H5O_efl_entry_t *)H5MM_xfree(mesg->slot);
} /* end if */
mesg->heap_addr = HADDR_UNDEF;
mesg->nused = mesg->nalloc = 0;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_efl_reset() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_total_size
*
* Purpose: Return the total size of the external file list by summing
* the sizes of all of the files.
*
* Return: Success: Total reserved size for external data.
*
* Failure: 0
*
* Programmer: Robb Matzke
* Tuesday, March 3, 1998
*
*-------------------------------------------------------------------------
*/
hsize_t
H5O_efl_total_size (H5O_efl_t *efl)
{
hsize_t ret_value = 0, tmp;
FUNC_ENTER_NOAPI_NOINIT
if(efl->nused > 0 && H5O_EFL_UNLIMITED == efl->slot[efl->nused - 1].size)
ret_value = H5O_EFL_UNLIMITED;
else {
size_t u; /* Local index variable */
for(u = 0; u < efl->nused; u++, ret_value = tmp) {
tmp = ret_value + efl->slot[u].size;
if(tmp <= ret_value)
HGOTO_ERROR(H5E_EFL, H5E_OVERFLOW, 0, "total external storage size overflowed");
} /* end for */
} /* end else */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5O_efl_total_size() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_copy_file
*
* Purpose: Copies an efl message from _MESG to _DEST in file
*
* Return: Success: Ptr to _DEST
*
* Failure: NULL
*
* Programmer: Peter Cao
* September 29, 2005
*
*-------------------------------------------------------------------------
*/
static void *
H5O_efl_copy_file(H5F_t H5_ATTR_UNUSED *file_src, void *mesg_src, H5F_t *file_dst,
hbool_t H5_ATTR_UNUSED *recompute_size, unsigned H5_ATTR_UNUSED *mesg_flags,
H5O_copy_t H5_ATTR_UNUSED *cpy_info, void H5_ATTR_UNUSED *_udata, hid_t dxpl_id)
{
H5O_efl_t *efl_src = (H5O_efl_t *) mesg_src;
H5O_efl_t *efl_dst = NULL;
H5HL_t *heap = NULL; /* Pointer to local heap for EFL file names */
size_t idx, size, name_offset, heap_size;
void *ret_value; /* Return value */
FUNC_ENTER_NOAPI_NOINIT_TAG(dxpl_id, H5AC__COPIED_TAG, NULL)
/* check args */
HDassert(efl_src);
HDassert(file_dst);
/* Allocate space for the destination efl */
if(NULL == (efl_dst = (H5O_efl_t *)H5MM_calloc(sizeof(H5O_efl_t))))
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* Copy the "top level" information */
HDmemcpy(efl_dst, efl_src, sizeof(H5O_efl_t));
/* Determine size needed for destination heap */
heap_size = H5HL_ALIGN(1); /* "empty" name */
for(idx = 0; idx < efl_src->nused; idx++)
heap_size += H5HL_ALIGN(HDstrlen(efl_src->slot[idx].name) + 1);
/* Create name heap */
if(H5HL_create(file_dst, dxpl_id, heap_size, &efl_dst->heap_addr/*out*/) < 0)
HGOTO_ERROR(H5E_EFL, H5E_CANTINIT, NULL, "can't create heap")
/* Pin the heap down in memory */
if(NULL == (heap = H5HL_protect(file_dst, dxpl_id, efl_dst->heap_addr, H5AC_WRITE)))
HGOTO_ERROR(H5E_EFL, H5E_PROTECT, NULL, "unable to protect EFL file name heap")
/* Insert "empty" name first */
if(UFAIL == (name_offset = H5HL_insert(file_dst, dxpl_id, heap, (size_t)1, "")))
HGOTO_ERROR(H5E_EFL, H5E_CANTINSERT, NULL, "can't insert file name into heap")
HDassert(0 == name_offset);
/* allocate array of external file entries */
if(efl_src->nalloc > 0) {
size = efl_src->nalloc * sizeof(H5O_efl_entry_t);
if((efl_dst->slot = (H5O_efl_entry_t *)H5MM_calloc(size)) == NULL)
HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, NULL, "memory allocation failed")
/* copy content from the source. Need to update later */
HDmemcpy(efl_dst->slot, efl_src->slot, size);
} /* end if */
/* copy the name from the source */
for(idx = 0; idx < efl_src->nused; idx++) {
efl_dst->slot[idx].name = H5MM_xstrdup(efl_src->slot[idx].name);
if(UFAIL == (efl_dst->slot[idx].name_offset = H5HL_insert(file_dst, dxpl_id, heap,
HDstrlen(efl_dst->slot[idx].name) + 1, efl_dst->slot[idx].name)))
HGOTO_ERROR(H5E_EFL, H5E_CANTINSERT, NULL, "can't insert file name into heap")
} /* end for */
/* Set return value */
ret_value = efl_dst;
done:
/* Release resources */
if(heap && H5HL_unprotect(heap) < 0)
HDONE_ERROR(H5E_EFL, H5E_PROTECT, NULL, "unable to unprotect EFL file name heap")
if(!ret_value)
if(efl_dst)
H5MM_xfree(efl_dst);
FUNC_LEAVE_NOAPI_TAG(ret_value, NULL)
} /* end H5O_efl_copy_file() */
/*-------------------------------------------------------------------------
* Function: H5O_efl_debug
*
* Purpose: Prints debugging info for a message.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Robb Matzke
* Tuesday, November 25, 1997
*
*-------------------------------------------------------------------------
*/
static herr_t
H5O_efl_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_efl_t *mesg = (const H5O_efl_t *) _mesg;
size_t u;
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* check args */
HDassert(f);
HDassert(mesg);
HDassert(stream);
HDassert(indent >= 0);
HDassert(fwidth >= 0);
HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth,
"Heap address:", mesg->heap_addr);
HDfprintf(stream, "%*s%-*s %u/%u\n", indent, "", fwidth,
"Slots used/allocated:",
mesg->nused, mesg->nalloc);
for(u = 0; u < mesg->nused; u++) {
char buf[64];
HDsnprintf(buf, sizeof(buf), "File %u", (unsigned)u);
HDfprintf(stream, "%*s%s:\n", indent, "", buf);
HDfprintf(stream, "%*s%-*s \"%s\"\n", indent+3, "", MAX (fwidth-3, 0),
"Name:",
mesg->slot[u].name);
HDfprintf(stream, "%*s%-*s %lu\n", indent+3, "", MAX (fwidth-3, 0),
"Name offset:",
(unsigned long)(mesg->slot[u].name_offset));
HDfprintf(stream, "%*s%-*s %lu\n", indent+3, "", MAX (fwidth-3, 0),
"Offset of data in file:",
(unsigned long)(mesg->slot[u].offset));
HDfprintf(stream, "%*s%-*s %lu\n", indent+3, "", MAX (fwidth-3, 0),
"Bytes reserved for data:",
(unsigned long)(mesg->slot[u].size));
} /* end for */
FUNC_LEAVE_NOAPI(SUCCEED)
} /* end H5O_efl_debug() */
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