00001 /* Copyright (C) 2000 MySQL AB 00002 00003 This program is free software; you can redistribute it and/or modify 00004 it under the terms of the GNU General Public License as published by 00005 the Free Software Foundation; version 2 of the License. 00006 00007 This program is distributed in the hope that it will be useful, 00008 but WITHOUT ANY WARRANTY; without even the implied warranty of 00009 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00010 GNU General Public License for more details. 00011 00012 You should have received a copy of the GNU General Public License 00013 along with this program; if not, write to the Free Software 00014 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ 00015 00016 00017 #include <config.h> 00018 #include <drizzled/internal/my_sys.h> 00019 00020 #include <zlib.h> 00021 00022 namespace drizzled 00023 { 00024 namespace internal 00025 { 00026 00027 /* 00028 Calculate a long checksum for a memoryblock. 00029 00030 SYNOPSIS 00031 my_checksum() 00032 crc start value for crc 00033 pos pointer to memory block 00034 length length of the block 00035 */ 00036 00037 ha_checksum my_checksum(ha_checksum crc, const unsigned char *pos, size_t length) 00038 { 00039 return ha_checksum(crc32((uint32_t)crc, pos, uInt(length))); 00040 } 00041 00042 } /* namespace internal */ 00043 } /* namespace drizzled */