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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: Quincey Koziol <koziol@hdfgroup.org>
* Wednesday, July 9, 2003
*
* 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
*
* Programmer: Robb Matzke
* Aug 1 1997
*
*-------------------------------------------------------------------------
*/
BEGIN_FUNC(PRIV, ERR,
herr_t, SUCCEED, FAIL,
H5HL_debug(H5F_t *f, hid_t dxpl_id, 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;
/* check arguments */
HDassert(f);
HDassert(H5F_addr_defined(addr));
HDassert(stream);
HDassert(indent >= 0);
HDassert(fwidth >= 0);
if(NULL == (h = (H5HL_t *)H5HL_protect(f, dxpl_id, addr, H5AC__READ_ONLY_FLAG)))
H5E_THROW(H5E_CANTPROTECT, "unable to load/protect local heap");
HDfprintf(stream, "%*sLocal Heap...\n", indent, "");
HDfprintf(stream, "%*s%-*s %lu\n", indent, "", fwidth,
"Header size (in bytes):",
(unsigned long)h->prfx_size);
HDfprintf(stream, "%*s%-*s %a\n", indent, "", fwidth,
"Address of heap data:",
h->dblk_addr);
HDfprintf(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)))
H5E_THROW(H5E_CANTALLOC, "memory allocation failed");
HDfprintf(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);
HDfprintf(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)
HDfprintf(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;
} /* end for */
if(overlap)
HDfprintf(stream, "***THAT FREE BLOCK OVERLAPPED A PREVIOUS ONE!\n");
else
amount_free += freelist->size;
} /* end for */
} /* end for */
if(h->dblk_size)
HDfprintf(stream, "%*s%-*s %.2f%%\n", indent, "", fwidth,
"Percent of heap used:",
((double)100.0f * (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);
CATCH
if(h && FAIL == H5HL_unprotect(h))
H5E_THROW(H5E_CANTUNPROTECT, "unable to release/unprotect local heap");
if(marker && NULL != (marker = (uint8_t *)H5MM_xfree(marker)))
H5E_THROW(H5E_CANTFREE, "can't free marker buffer");
END_FUNC(PRIV) /* end H5HL_debug() */
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