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

   1 #include "common.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, sent_length;
   7   memcached_return rc;
   8   char buffer[MEMCACHED_DEFAULT_COMMAND_SIZE];
   9   unsigned int server_key;
  10
  11   LIBMEMCACHED_MEMCACHED_DELETE_START();
  12
  13   server_key= memcached_generate_hash(ptr, key, key_length);
  14
  15   if ((rc= memcached_connect(ptr, server_key)) != MEMCACHED_SUCCESS)
  16     return rc;
  17
  18
  19   if (expiration)
  20     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  21                           "delete %.*s %llu\r\n", (int)key_length, key,
  22                           (unsigned long long)expiration);
  23   else
  24     send_length= snprintf(buffer, MEMCACHED_DEFAULT_COMMAND_SIZE,
  25                           "delete %.*s\r\n", (int)key_length, key);
  26
  27   if (send_length >= MEMCACHED_DEFAULT_COMMAND_SIZE)
  28   {
  29     rc= MEMCACHED_WRITE_FAILURE;
  30     goto error;
  31   }
  32
  33   sent_length= memcached_io_write(ptr, server_key, buffer, send_length, 1);
  34
  35   if (sent_length == -1 || sent_length != send_length)
  36   {
  37     rc= MEMCACHED_WRITE_FAILURE;
  38     goto error;
  39   }
  40
  41   rc= memcached_response(ptr, buffer, MEMCACHED_DEFAULT_COMMAND_SIZE, server_key);
  42
  43   if (rc == MEMCACHED_DELETED)
  44     rc= MEMCACHED_SUCCESS;
  45
  46   LIBMEMCACHED_MEMCACHED_DELETE_END();
  47
  48 error:
  49   return rc;
  50 }