You've already forked mariadb-columnstore-engine
mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-11-03 17:13:17 +03:00
105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; version 2 of
|
|
the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/*****************************************************************************
|
|
* $Id$
|
|
*
|
|
****************************************************************************/
|
|
|
|
/** @file
|
|
* Brief description of the file contents
|
|
*
|
|
* More detailed description
|
|
*/
|
|
|
|
#include <iostream>
|
|
#include <stdlib.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
|
|
#include "calpontsystemcatalog.h"
|
|
|
|
using namespace std;
|
|
|
|
void usage(char *name)
|
|
{
|
|
cerr << "Usage: " << name << " dict_block_filename" << endl;
|
|
exit(0);
|
|
}
|
|
|
|
void parseDictBlock(char *block)
|
|
{
|
|
|
|
uint16_t *offsets;
|
|
uint16_t *freeBytes;
|
|
u_int64_t *contPtr;
|
|
int offsetIndex, size;
|
|
char sig[BLOCK_SIZE+1];
|
|
|
|
freeBytes = reinterpret_cast<uint16_t *>(&block[0]);
|
|
contPtr = reinterpret_cast<u_int64_t *>(&block[2]);
|
|
offsets = reinterpret_cast<uint16_t *>(&block[10]);
|
|
|
|
cout << "Free Bytes: " << *freeBytes << endl;
|
|
cout << "Continuation Pointer: 0x" << hex << *contPtr << dec << endl;
|
|
|
|
for (offsetIndex = 0; offsets[offsetIndex+1] != 0xffff; offsetIndex++) {
|
|
size = offsets[offsetIndex] - offsets[offsetIndex+1];
|
|
memcpy(sig, &block[offsets[offsetIndex+1]], size);
|
|
sig[size] = '\0';
|
|
cout << "Offset #" << offsetIndex + 1 << ": size=" << size << " offset="
|
|
<< offsets[offsetIndex+1] << endl;
|
|
|
|
// Use these lines instead for non-ascii data.
|
|
// cout << " Signature: 0x";
|
|
// for (i = 0; i < size; i++)
|
|
// cout << hex << (((int) sig[i]) & 0xff);
|
|
cout << " Signature: " << sig;
|
|
cout << dec << endl;
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int fd, err;
|
|
char buf[BLOCK_SIZE];
|
|
|
|
if (argc != 2)
|
|
usage(argv[0]);
|
|
|
|
fd = open(argv[1], O_RDONLY);
|
|
if (fd < 0) {
|
|
perror("open");
|
|
exit(1);
|
|
}
|
|
err = read(fd, buf, BLOCK_SIZE);
|
|
if (err < 0) {
|
|
perror("read");
|
|
exit(1);
|
|
}
|
|
if (err != BLOCK_SIZE) {
|
|
cerr << "Failed to read the file in one op, check the filelength and try again."
|
|
<< endl;
|
|
exit(1);
|
|
}
|
|
|
|
parseDictBlock(buf);
|
|
exit(0);
|
|
}
|
|
|