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_result_st *result_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   result_ptr= memcached_result_create(ptr, &ptr->result);
  24   WATCHPOINT_ASSERT(result_ptr);
  25   ptr->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
  26   ptr->distribution= MEMCACHED_DISTRIBUTION_MODULA;
  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_result_free(&ptr->result);
  37
  38   if (ptr->on_cleanup)
  39     ptr->on_cleanup(ptr);
  40
  41   if (ptr->is_allocated == MEMCACHED_ALLOCATED)
  42     free(ptr);
  43   else
  44     ptr->is_allocated= MEMCACHED_USED;
  45 }
  46
  47 /*
  48   clone is the destination, while ptr is the structure to clone.
  49   If ptr is NULL the call is the same as if a memcached_create() was
  50   called.
  51 */
  52 memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr)
  53 {
  54   memcached_return rc= MEMCACHED_SUCCESS;
  55   memcached_st *new_clone;
  56
  57   if (ptr == NULL)
  58   {
  59     new_clone= memcached_create(clone);
  60
  61     if (ptr->on_clone)
  62       ptr->on_clone(NULL, new_clone);
  63
  64     return new_clone;
  65   }
  66
  67   if (ptr->is_allocated == MEMCACHED_USED)
  68   {
  69     WATCHPOINT_ASSERT(0);
  70     return NULL;
  71   }
  72
  73   new_clone= memcached_create(clone);
  74
  75   if (new_clone == NULL)
  76     return NULL;
  77
  78   if (ptr->hosts)
  79     rc= memcached_server_push(new_clone, ptr->hosts);
  80
  81   if (rc != MEMCACHED_SUCCESS)
  82   {
  83     memcached_free(new_clone);
  84
  85     return NULL;
  86   }
  87
  88
  89   new_clone->flags= ptr->flags;
  90   new_clone->send_size= ptr->send_size;
  91   new_clone->recv_size= ptr->recv_size;
  92   new_clone->poll_timeout= ptr->poll_timeout;
  93   new_clone->distribution= ptr->distribution;
  94   new_clone->hash= ptr->hash;
  95   new_clone->user_data= ptr->user_data;
  96
  97   if (ptr->on_clone)
  98     ptr->on_clone(ptr, new_clone);
  99
 100   return new_clone;
 101 }