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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: Local Heap object debugging functions.
*/
/****************/
/* Module Setup */
/****************/
#include "H5HLmodule.h" /* This source code file is part of the H5HL module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5Eprivate.h" /* Error handling */
#include "H5HLpkg.h" /* Local heaps */
#include "H5MMprivate.h" /* Memory management */
/*-------------------------------------------------------------------------
* Function: H5HL_debug
*
* Purpose: Prints debugging information about a heap.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5HL_debug(H5F_t *f, haddr_t addr, FILE *stream, int indent, int fwidth)
{
H5HL_t *h = NULL;
int free_block;
H5HL_free_t *freelist;
uint8_t *marker = NULL;
size_t amount_free = 0;
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* check arguments */
assert(f);
assert(H5_addr_defined(addr));
assert(stream);
assert(indent >= 0);
assert(fwidth >= 0);
if (NULL == (h = (H5HL_t *)H5HL_protect(f, addr, H5AC__READ_ONLY_FLAG)))
HGOTO_ERROR(H5E_HEAP, H5E_CANTPROTECT, FAIL, "unable to load/protect local heap");
fprintf(stream, "%*sLocal Heap...\n", indent, "");
fprintf(stream, "%*s%-*s %zu\n", indent, "", fwidth, "Header size (in bytes):", h->prfx_size);
fprintf(stream, "%*s%-*s %" PRIuHADDR "\n", indent, "", fwidth, "Address of heap data:", h->dblk_addr);
fprintf(stream, "%*s%-*s %zu\n", indent, "", fwidth, "Data bytes allocated for heap:", h->dblk_size);
/* Traverse the free list and check that all free blocks fall within
* the heap and that no two free blocks point to the same region of
* the heap.
*/
if (NULL == (marker = (uint8_t *)H5MM_calloc(h->dblk_size)))
HGOTO_ERROR(H5E_HEAP, H5E_CANTALLOC, FAIL, "memory allocation failed");
fprintf(stream, "%*sFree Blocks (offset, size):\n", indent, "");
for (free_block = 0, freelist = h->freelist; freelist; freelist = freelist->next, free_block++) {
char temp_str[32];
HDsnprintf(temp_str, sizeof(temp_str), "Block #%d:", free_block);
fprintf(stream, "%*s%-*s %8zu, %8zu\n", indent + 3, "", MAX(0, fwidth - 9), temp_str,
freelist->offset, freelist->size);
if ((freelist->offset + freelist->size) > h->dblk_size)
fprintf(stream, "***THAT FREE BLOCK IS OUT OF BOUNDS!\n");
else {
int overlap = 0;
size_t i;
for (i = 0; i < freelist->size; i++) {
if (marker[freelist->offset + i])
overlap++;
marker[freelist->offset + i] = 1;
}
if (overlap)
fprintf(stream, "***THAT FREE BLOCK OVERLAPPED A PREVIOUS ONE!\n");
else
amount_free += freelist->size;
}
}
if (h->dblk_size)
fprintf(stream, "%*s%-*s %.2f%%\n", indent, "", fwidth, "Percent of heap used:",
(100.0 * (double)(h->dblk_size - amount_free) / (double)h->dblk_size));
/* Print the data in a VMS-style octal dump */
H5_buffer_dump(stream, indent, h->dblk_image, marker, (size_t)0, h->dblk_size);
done:
if (h && FAIL == H5HL_unprotect(h))
HDONE_ERROR(H5E_HEAP, H5E_CANTUNPROTECT, FAIL, "unable to release/unprotect local heap");
if (marker && NULL != (marker = (uint8_t *)H5MM_xfree(marker)))
HDONE_ERROR(H5E_HEAP, H5E_CANTFREE, FAIL, "can't free marker buffer");
FUNC_LEAVE_NOAPI(ret_value)
} /* end H5HL_debug() */
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