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
  10   if (ptr == NULL)
  11   {
  12     ptr= (memcached_st *)malloc(sizeof(memcached_st));
  13
  14     if (!ptr)
  15       return NULL; /*  MEMCACHED_MEMORY_ALLOCATION_FAILURE */
  16
  17     memset(ptr, 0, sizeof(memcached_st));
  18     ptr->is_allocated= MEMCACHED_ALLOCATED;
  19   }
  20   else
  21   {
  22     memset(ptr, 0, sizeof(memcached_st));
  23   }
  24   result_ptr= memcached_result_create(ptr, &ptr->result);
  25   WATCHPOINT_ASSERT(result_ptr);
  26   ptr->poll_timeout= MEMCACHED_DEFAULT_TIMEOUT;
  27   ptr->distribution= MEMCACHED_DISTRIBUTION_MODULA;
  28   ptr->number_of_replicas= 1;
  29
  30   return ptr;
  31 }
  32
  33 void memcached_free(memcached_st *ptr)
  34 {
  35   /* If we have anything open, lets close it now */
  36   memcached_quit(ptr);
  37   server_list_free(ptr, ptr->hosts);
  38   memcached_result_free(&ptr->result);
  39
  40   if (ptr->on_cleanup)
  41     ptr->on_cleanup(ptr);
  42
  43   if (ptr->is_allocated == MEMCACHED_ALLOCATED)
  44   {
  45     if (ptr->call_free)
  46       ptr->call_free(ptr, ptr);
  47     else
  48       free(ptr);
  49   }
  50   else
  51     ptr->is_allocated= MEMCACHED_USED;
  52 }
  53
  54 /*
  55   clone is the destination, while ptr is the structure to clone.
  56   If ptr is NULL the call is the same as if a memcached_create() was
  57   called.
  58 */
  59 memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr)
  60 {
  61   memcached_return rc= MEMCACHED_SUCCESS;
  62   memcached_st *new_clone;
  63
  64   if (ptr == NULL)
  65     return memcached_create(clone);
  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   new_clone->on_clone= ptr->on_clone;
  98   new_clone->on_cleanup= ptr->on_cleanup;
  99   new_clone->call_free= ptr->call_free;
 100   new_clone->call_malloc= ptr->call_malloc;
 101   new_clone->call_realloc= ptr->call_realloc;
 102
 103   if (ptr->on_clone)
 104     ptr->on_clone(ptr, new_clone);
 105
 106   return new_clone;
 107 }