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hdf5/tools/misc/h5debug.c
Quincey Koziol 5b7ebc2ff9 [svn-r10184] Purpose: 
New feature

Description:
    Add new "block tracker" data structure to library, for tracking blocks of
bytes in a file.  Block trackers will be used to keep track of the blocks
belonging to the soon-to-be-implemented "segmented heap" which is designed to
replace the current local & global heaps (starting with the local heap).
Block trackers will also keep track of the free space in the segmented heap
and someday could be used to track the free space in the entire HDF5 file.
    They are implemented as a small header of information to cache the state
of the blocks (max & min sizes of blocks tracked, etc.) and the records of
the blocks themselves are stored in a v2 B-tree.

Platforms tested:
    FreeBSD 4.11 (sleipnir)
    Solaris 2.9 (shanti)
    h5committest
2005-03-10 19:44:03 -05:00

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*-------------------------------------------------------------------------
*
* Created: debug.c
* Jul 18 1997
* Robb Matzke <matzke@llnl.gov>
*
* Purpose: Debugs an existing HDF5 file at a low level.
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
#define H5F_PACKAGE /*suppress error about including H5Fpkg */
#define H5O_PACKAGE /*suppress error about including H5Opkg */
#define H5B2_PACKAGE /*suppress error about including H5B2pkg */
#define H5B2_TESTING /*suppress warning about H5B2 testing funcs*/
#define H5BT_PACKAGE /*suppress error about including H5BTpkg */
#include "H5private.h" /* Generic Functions */
#include "H5Bprivate.h"
#include "H5B2pkg.h" /* B-trees */
#include "H5BTpkg.h" /* Block tracker */
#include "H5Dprivate.h"
#include "H5Fpkg.h"
#include "H5Gprivate.h"
#include "H5HGprivate.h"
#include "H5HLprivate.h"
#include "H5Iprivate.h"
#include "H5Opkg.h"
#include "H5Pprivate.h"
/* File drivers */
#include "H5FDfamily.h"
#define INDENT 3
#define VCOL 50
/*-------------------------------------------------------------------------
* Function: main
*
* Usage: debug FILENAME [OFFSET]
*
* Return: Success: exit (0)
*
* Failure: exit (non-zero)
*
* Programmer: Robb Matzke
* matzke@llnl.gov
* Jul 18 1997
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
main(int argc, char *argv[])
{
hid_t fid, fapl, dxpl;
H5F_t *f;
haddr_t addr=0, extra=0, extra2=0;
uint8_t sig[16];
int i;
herr_t status = SUCCEED;
if (argc == 1) {
fprintf(stderr,
"Usage: %s filename [signature-addr [extra]]\n", argv[0]);
HDexit(1);
}
/* Initialize the library */
if(H5open ()<0) {
fprintf(stderr, "cannot initialize the library\n");
HDexit(1);
}
/*
* Open the file and get the file descriptor.
*/
if((dxpl = H5Pcreate (H5P_DATASET_XFER))<0) {
fprintf(stderr, "cannot create dataset transfer property list\n");
HDexit(1);
}
if((fapl = H5Pcreate (H5P_FILE_ACCESS))<0) {
fprintf(stderr, "cannot create file access property list\n");
HDexit(1);
}
if (strchr (argv[1], '%')) {
H5Pset_fapl_family (fapl, (hsize_t)0, H5P_DEFAULT);
}
if ((fid = H5Fopen(argv[1], H5F_ACC_RDONLY, fapl)) < 0) {
fprintf(stderr, "cannot open file\n");
HDexit(1);
}
if (NULL == (f = H5I_object(fid))) {
fprintf(stderr, "cannot obtain H5F_t pointer\n");
HDexit(2);
}
/*
* Parse command arguments.
*/
if (argc > 2) {
/* printf("New address: %s\n", argv[2]); */
addr = HDstrtoll(argv[2], NULL, 0);
}
if (argc > 3) {
extra = HDstrtoll(argv[3], NULL, 0);
}
if (argc > 4) {
extra2 = HDstrtoll(argv[4], NULL, 0);
}
/*
* Read the signature at the specified file position.
*/
HDfprintf(stdout, "Reading signature at address %a (rel)\n", addr);
if (H5F_block_read(f, H5FD_MEM_SUPER, addr, sizeof(sig), dxpl, sig)<0) {
fprintf(stderr, "cannot read signature\n");
HDexit(3);
}
if (!HDmemcmp(sig, H5F_SIGNATURE, H5F_SIGNATURE_LEN)) {
/*
* Debug the boot block.
*/
status = H5F_debug(f, H5P_DATASET_XFER_DEFAULT, stdout, 0, VCOL);
} else if (!HDmemcmp(sig, H5HL_MAGIC, H5HL_SIZEOF_MAGIC)) {
/*
* Debug a local heap.
*/
status = H5HL_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL);
} else if (!HDmemcmp (sig, H5HG_MAGIC, H5HG_SIZEOF_MAGIC)) {
/*
* Debug a global heap collection.
*/
status = H5HG_debug (f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL);
} else if (!HDmemcmp(sig, H5G_NODE_MAGIC, H5G_NODE_SIZEOF_MAGIC)) {
/*
* Debug a symbol table node.
*/
status = H5G_node_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, extra);
} else if (!HDmemcmp(sig, H5B_MAGIC, H5B_SIZEOF_MAGIC)) {
/*
* Debug a B-tree. B-trees are debugged through the B-tree
* subclass. The subclass identifier is the byte immediately
* after the B-tree signature.
*/
H5B_subid_t subtype = (H5B_subid_t)sig[H5B_SIZEOF_MAGIC];
unsigned ndims;
switch (subtype) {
case H5B_SNODE_ID:
status = H5G_node_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, extra);
break;
case H5B_ISTORE_ID:
ndims = (unsigned)extra;
status = H5D_istore_debug (f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, ndims);
break;
default:
fprintf(stderr, "Unknown B-tree subtype %u\n", (unsigned)(subtype));
HDexit(4);
}
} else if (!HDmemcmp(sig, H5B2_HDR_MAGIC, H5B2_SIZEOF_MAGIC)) {
/*
* Debug a v2 B-tree. B-trees are debugged through the B-tree
* subclass. The subclass identifier is two bytes after the
* B-tree signature.
*/
H5B2_subid_t subtype = (H5B_subid_t)sig[H5B2_SIZEOF_MAGIC+1];
switch (subtype) {
case H5B2_TEST_ID:
status = H5B2_hdr_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, H5B2_TEST);
break;
case H5B2_BLK_TRK_ID:
status = H5B2_hdr_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, H5B2_BLKTRK);
break;
default:
fprintf(stderr, "Unknown B-tree subtype %u\n", (unsigned)(subtype));
HDexit(4);
} /* end switch */
} else if (!HDmemcmp(sig, H5B2_INT_MAGIC, H5B2_SIZEOF_MAGIC)) {
/*
* Debug a v2 B-tree. B-trees are debugged through the B-tree
* subclass. The subclass identifier is two bytes after the
* B-tree signature.
*/
H5B2_subid_t subtype = (H5B_subid_t)sig[H5B2_SIZEOF_MAGIC+1];
switch (subtype) {
case H5B2_TEST_ID:
status = H5B2_int_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, H5B2_TEST, extra, (unsigned)extra2);
break;
case H5B2_BLK_TRK_ID:
status = H5B2_int_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, H5B2_BLKTRK, extra, (unsigned)extra2);
break;
default:
fprintf(stderr, "Unknown B-tree subtype %u\n", (unsigned)(subtype));
HDexit(4);
} /* end switch */
} else if (!HDmemcmp(sig, H5B2_LEAF_MAGIC, H5B2_SIZEOF_MAGIC)) {
/*
* Debug a v2 B-tree. B-trees are debugged through the B-tree
* subclass. The subclass identifier is two bytes after the
* B-tree signature.
*/
H5B2_subid_t subtype = (H5B_subid_t)sig[H5B2_SIZEOF_MAGIC+1];
switch (subtype) {
case H5B2_TEST_ID:
status = H5B2_leaf_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, H5B2_TEST, extra, (unsigned)extra2);
break;
case H5B2_BLK_TRK_ID:
status = H5B2_leaf_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL, H5B2_BLKTRK, extra, (unsigned)extra2);
break;
default:
fprintf(stderr, "Unknown B-tree subtype %u\n", (unsigned)(subtype));
HDexit(4);
} /* end switch */
} else if (!HDmemcmp(sig, H5BT_MAGIC, H5BT_SIZEOF_MAGIC)) {
/*
* Debug a block tracker info
*/
status = H5BT_hdr_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL);
} else if (sig[0] == H5O_VERSION) {
/*
* This could be an object header. Since they don't have a signature
* it's a somewhat "ify" detection.
*/
status = H5O_debug(f, H5P_DATASET_XFER_DEFAULT, addr, stdout, 0, VCOL);
} else {
/*
* Got some other unrecognized signature.
*/
printf("%-*s ", VCOL, "Signature:");
for (i = 0; i < 8; i++) {
if (sig[i] > ' ' && sig[i] <= '~' && '\\' != sig[i]) {
HDputchar(sig[i]);
} else if ('\\' == sig[i]) {
HDputchar('\\');
HDputchar('\\');
} else {
printf("\\%03o", sig[i]);
}
}
HDputchar('\n');
fprintf(stderr, "unknown signature\n");
HDexit(4);
}
if (status < 0) {
fprintf(stderr, "An error occurred\n");
HDexit(5);
}
H5Pclose(dxpl);
H5Pclose(fapl);
H5Fclose(fid);
return 0;
}
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