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

   1 /*
   2   Memcached library
   3 */
   4 #include "common.h"
   5
   6 memcached_st *memcached_create(memcached_st *ptr)
   7 {
   8   memcached_string_st *string_ptr;
   9   if (!ptr)
  10   {
  11     ptr= (memcached_st *)malloc(sizeof(memcached_st));
  12
  13     if (!ptr)
  14       return NULL; /*  MEMCACHED_MEMORY_ALLOCATION_FAILURE */
  15
  16     memset(ptr, 0, sizeof(memcached_st));
  17     ptr->is_allocated= MEMCACHED_ALLOCATED;
  18   }
  19   else
  20   {
  21     memset(ptr, 0, sizeof(memcached_st));
  22   }
  23   string_ptr= memcached_string_create(ptr, &ptr->result_buffer, 0);
  24   WATCHPOINT_ASSERT(string_ptr);
  25   ptr->poll_timeout= -1;
  26   ptr->distribution= MEMCACHED_DISTRIBUTION_MODULO;
  27
  28   return ptr;
  29 }
  30
  31 void memcached_free(memcached_st *ptr)
  32 {
  33   /* If we have anything open, lets close it now */
  34   memcached_quit(ptr);
  35   memcached_server_list_free(ptr->hosts);
  36   memcached_string_free(&ptr->result_buffer);
  37
  38   if (ptr->is_allocated == MEMCACHED_ALLOCATED)
  39     free(ptr);
  40   else
  41     ptr->is_allocated= MEMCACHED_USED;
  42 }
  43
  44 /*
  45   clone is the destination, while ptr is the structure to clone.
  46   If ptr is NULL the call is the same as if a memcached_create() was
  47   called.
  48 */
  49 memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr)
  50 {
  51   memcached_return rc;
  52   memcached_st *new_clone;
  53
  54   if (ptr == NULL)
  55     return memcached_create(clone);
  56
  57   if (ptr->is_allocated == MEMCACHED_USED)
  58   {
  59     WATCHPOINT_ASSERT(0);
  60     return NULL;
  61   }
  62
  63   new_clone= memcached_create(clone);
  64
  65   if (new_clone == NULL)
  66     return NULL;
  67
  68   if (ptr->hosts)
  69     rc= memcached_server_push(new_clone, ptr->hosts);
  70
  71   if (rc != MEMCACHED_SUCCESS)
  72   {
  73     memcached_free(new_clone);
  74
  75     return NULL;
  76   }
  77
  78
  79   new_clone->flags= ptr->flags;
  80   new_clone->send_size= ptr->send_size;
  81   new_clone->recv_size= ptr->recv_size;
  82   new_clone->poll_timeout= ptr->poll_timeout;
  83   new_clone->distribution= ptr->distribution;
  84
  85   return new_clone;
  86 }