git.m6w6.name Git - m6w6/libmemcached/blob - lib/memcached_delete.c

   1 #include <memcached.h>
   2
   3 memcached_return memcached_delete(memcached_st *ptr, char *key, size_t key_length,
   4                                   time_t expiration)
   5 {
   6   size_t send_length;
   7   memcached_return rc;
   8   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
   9   unsigned int server_key;
  10
  11   rc= memcached_connect(ptr);
  12
  13   if (rc != MEMCACHED_SUCCESS)
  14     return rc;
  15
  16   server_key= memcached_generate_hash(key, key_length) % ptr->number_of_hosts;
  17
  18   if (expiration)
  19     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  20                           "delete %.*s %u\r\n", key_length, key, expiration);
  21   else
  22     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  23                           "delete %.*s\r\n", key_length, key);
  24   if ((write(ptr->hosts[server_key].fd, buffer, send_length) == -1))
  25   {
  26     fprintf(stderr, "failed set on %.*s TCP\n", key_length+1, key);
  27
  28     return MEMCACHED_WRITE_FAILURE;
  29   }
  30
  31   return memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, server_key);
  32 }