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  • Committer: Monty Taylor
  • Date: 2010-10-15 17:18:02 UTC
  • mto: (1859.1.2 build)
  • mto: This revision was merged to the branch mainline in revision 1860.
  • Revision ID: mordred@inaugust.com-20101015171802-qhk6zyfhrkvprr1n
Added support for registering regular sys_var instances via module::Context.

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plugin/myisam/mi_checksum.cc
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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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
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   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
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/* Calculate a checksum for a row */
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#include "myisamdef.h"
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ha_checksum mi_checksum(MI_INFO *info, const uchar *buf)
 
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#include "myisam_priv.h"
 
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using namespace drizzled;
 
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internal::ha_checksum mi_checksum(MI_INFO *info, const unsigned char *buf)
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{
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  uint i;
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  ha_checksum crc=0;
 
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  uint32_t i;
 
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  internal::ha_checksum crc=0;
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  MI_COLUMNDEF *rec=info->s->rec;
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  for (i=info->s->base.fields ; i-- ; buf+=(rec++)->length)
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  {
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    const uchar *pos;
 
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    const unsigned char *pos;
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    ulong length;
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    switch (rec->type) {
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    case FIELD_BLOB:
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    }
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    case FIELD_VARCHAR:
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    {
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      uint pack_length= HA_VARCHAR_PACKLENGTH(rec->length-1);
 
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      uint32_t pack_length= HA_VARCHAR_PACKLENGTH(rec->length-1);
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      if (pack_length == 1)
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        length= (ulong) *(uchar*) buf;
 
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        length= (ulong) *(unsigned char*) buf;
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      else
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        length= uint2korr(buf);
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      pos= buf+pack_length;
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      pos=buf;
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      break;
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    }
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    crc=my_checksum(crc, pos ? pos : (uchar*) "", length);
 
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    crc=internal::my_checksum(crc, pos ? pos : (unsigned char*) "", length);
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  }
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  return crc;
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}
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ha_checksum mi_static_checksum(MI_INFO *info, const uchar *pos)
 
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internal::ha_checksum mi_static_checksum(MI_INFO *info, const unsigned char *pos)
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{
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  return my_checksum(0, pos, info->s->base.reclength);
 
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  return internal::my_checksum(0, pos, info->s->base.reclength);
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}