git.m6w6.name Git - m6w6/libmemcached/blob - libmemcached/prefix_key.cc

   1 /*  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
   2  *
   3  *  Libmemcached library
   4  *
   5  *  Copyright (C) 2011 Data Differential, http://datadifferential.com/
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  37
  38 #include <libmemcached/common.h>
  39
  40 memcached_return_t memcached_set_prefix_key(memcached_st *self, const char *key, size_t key_length)
  41 {
  42   WATCHPOINT_ASSERT(self);
  43
  44   if (key and key_length)
  45   {
  46     if (memcached_key_test((const char **)&key, &key_length, 1) == MEMCACHED_BAD_KEY_PROVIDED)
  47       return memcached_set_error(*self, MEMCACHED_BAD_KEY_PROVIDED, MEMCACHED_AT);
  48
  49     if ((key_length > MEMCACHED_PREFIX_KEY_MAX_SIZE -1))
  50       return memcached_set_error(*self, MEMCACHED_KEY_TOO_BIG, MEMCACHED_AT);
  51
  52     memcached_array_free(self->prefix_key);
  53     self->prefix_key= memcached_strcpy(self, key, key_length);
  54
  55     if (not self->prefix_key)
  56       return memcached_set_error(*self, MEMCACHED_MEMORY_ALLOCATION_FAILURE, MEMCACHED_AT);
  57   }
  58   else
  59   {
  60     memcached_array_free(self->prefix_key);
  61     self->prefix_key= NULL;
  62   }
  63
  64   return MEMCACHED_SUCCESS;
  65 }