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92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/*****************************************************************************
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* $Id$
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*
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****************************************************************************/
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/** @file
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* Brief description of the file contents
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*
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* More detailed description
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*/
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#include <iostream>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include "we_index.h"
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#include "calpontsystemcatalog.h"
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using namespace std;
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void usage()
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{
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cout << "Usage: print_indextree_subblock filename block_offset subblock_number" << endl;
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exit(1);
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}
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int main(int argc, char** argv)
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{
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char buf[256];
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int fd, err, subblock, fbo, byteoffset, i;
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string filename;
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WriteEngine::IdxBitTestEntry* entry;
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if (argc != 4)
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usage();
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filename = argv[1];
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fbo = atoi(argv[2]);
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subblock = atoi(argv[3]);
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cout << "FBO: " << fbo << " Subblock: " << subblock << endl;
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fd = open(filename.c_str(), O_RDONLY);
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if (fd < 0)
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{
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perror("open");
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exit(1);
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}
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byteoffset = fbo * BLOCK_SIZE + subblock * 256;
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lseek(fd, byteoffset, SEEK_SET);
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err = read(fd, buf, 256);
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if (err != 256)
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{
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perror("read");
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exit(1);
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}
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close(fd);
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for (i = 0, byteoffset = 0; byteoffset < 256;
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byteoffset += sizeof(WriteEngine::IdxBitTestEntry), i++)
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{
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entry = (WriteEngine::IdxBitTestEntry*) &buf[byteoffset];
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cout << "Entry " << i << ": fbo=" << (int)entry->fbo <<
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" sbid=" << entry->sbid << " sbentry=" << entry->entry <<
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" group=" << entry->group << " bittest=" << entry->bitTest <<
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" type=" << entry->type << endl;
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}
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exit(0);
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}
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