diff options
Diffstat (limited to 'myisam/mi_checksum.c')
| -rw-r--r-- | myisam/mi_checksum.c | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/myisam/mi_checksum.c b/myisam/mi_checksum.c index a760b03a032..982f77ee81f 100644 --- a/myisam/mi_checksum.c +++ b/myisam/mi_checksum.c @@ -28,30 +28,29 @@ ha_checksum mi_checksum(MI_INFO *info, const byte *buf) { const byte *pos; const byte *end; + ulong length; switch (rec->type) { case FIELD_BLOB: { - ulong length=_mi_calc_blob_length(rec->length- + length=_mi_calc_blob_length(rec->length- mi_portable_sizeof_char_ptr, buf); memcpy((char*) &pos, buf+rec->length- mi_portable_sizeof_char_ptr, sizeof(char*)); - end=pos+length; break; } case FIELD_VARCHAR: { - uint length; length=uint2korr(buf); - pos=buf+2; end=pos+length; + pos=buf+2; break; } default: - pos=buf; end=buf+rec->length; + length=rec->length; + pos=buf; break; } - for ( ; pos != end ; pos++) - crc=((crc << 8) + *((uchar*) pos)) + (crc >> (8*sizeof(ha_checksum)-8)); + crc=my_checksum(crc, pos, length); } return crc; } @@ -59,9 +58,5 @@ ha_checksum mi_checksum(MI_INFO *info, const byte *buf) ha_checksum mi_static_checksum(MI_INFO *info, const byte *pos) { - ha_checksum crc; - const byte *end=pos+info->s->base.reclength; - for (crc=0; pos != end; pos++) - crc=((crc << 8) + *((uchar*) pos)) + (crc >> (8*sizeof(ha_checksum)-8)); - return crc; + return my_checksum(0, pos, info->s->base.reclength); } |