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  • Committer: Monty Taylor
  • Date: 2010-01-02 05:11:55 UTC
  • mto: (1259.3.1 build)
  • mto: This revision was merged to the branch mainline in revision 1262.
  • Revision ID: mordred@inaugust.com-20100102051155-akdm8w5rr6xwzayu
pandora-build - proper detection of memcached.

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plugin/myisam/mi_cache.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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
 
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   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
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/*
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  Functions for read record cacheing with myisam
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#include <algorithm>
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using namespace std;
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using namespace drizzled;
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int _mi_read_cache(internal::IO_CACHE *info, unsigned char *buff, internal::my_off_t pos, uint32_t length,
 
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int _mi_read_cache(IO_CACHE *info, unsigned char *buff, my_off_t pos, uint32_t length,
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                   int flag)
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{
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  uint32_t read_length,in_buff_length;
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  internal::my_off_t offset;
 
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  my_off_t offset;
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  unsigned char *in_buff_pos;
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  if (pos < info->pos_in_file)
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  {
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    read_length=length;
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    if ((internal::my_off_t) read_length > (internal::my_off_t) (info->pos_in_file-pos))
 
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    if ((my_off_t) read_length > (my_off_t) (info->pos_in_file-pos))
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      read_length=(uint) (info->pos_in_file-pos);
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    info->seek_not_done=1;
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    if (my_pread(info->file,buff,read_length,pos,MYF(MY_NABP)))
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    buff+=read_length;
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  }
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  if (pos >= info->pos_in_file &&
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      (offset= (internal::my_off_t) (pos - info->pos_in_file)) <
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      (internal::my_off_t) (info->read_end - info->request_pos))
 
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      (offset= (my_off_t) (pos - info->pos_in_file)) <
 
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      (my_off_t) (info->read_end - info->request_pos))
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  {
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    in_buff_pos=info->request_pos+(uint) offset;
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    in_buff_length= min(length, (uint32_t) (info->read_end-in_buff_pos));