git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/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->connect_timeout= MEMCACHED_DEFAULT_TIMEOUT;
  28   ptr->retry_timeout= 0;
  29   ptr->distribution= MEMCACHED_DISTRIBUTION_MODULA;
  30
  31   return ptr;
  32 }
  33
  34 void memcached_free(memcached_st *ptr)
  35 {
  36   /* If we have anything open, lets close it now */
  37   memcached_quit(ptr);
  38   server_list_free(ptr, ptr->hosts);
  39   memcached_result_free(&ptr->result);
  40
  41   if (ptr->on_cleanup)
  42     ptr->on_cleanup(ptr);
  43
  44   if (ptr->continuum)
  45   {
  46     if (ptr->call_free)
  47       ptr->call_free(ptr, ptr->continuum);
  48     else
  49       free(ptr->continuum);
  50   }
  51
  52   if (ptr->wheel)
  53   {
  54     if (ptr->call_free)
  55       ptr->call_free(ptr, ptr->wheel);
  56     else
  57       free(ptr->wheel);
  58   }
  59
  60   if (ptr->is_allocated == MEMCACHED_ALLOCATED)
  61   {
  62     if (ptr->call_free)
  63       ptr->call_free(ptr, ptr);
  64     else
  65       free(ptr);
  66   }
  67   else
  68     ptr->is_allocated= MEMCACHED_USED;
  69 }
  70
  71 /*
  72   clone is the destination, while ptr is the structure to clone.
  73   If ptr is NULL the call is the same as if a memcached_create() was
  74   called.
  75 */
  76 memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr)
  77 {
  78   memcached_return rc= MEMCACHED_SUCCESS;
  79   memcached_st *new_clone;
  80
  81   if (ptr == NULL)
  82     return memcached_create(clone);
  83
  84   if (ptr->is_allocated == MEMCACHED_USED)
  85   {
  86     WATCHPOINT_ASSERT(0);
  87     return NULL;
  88   }
  89
  90   new_clone= memcached_create(clone);
  91
  92   if (new_clone == NULL)
  93     return NULL;
  94
  95   if (ptr->hosts)
  96     rc= memcached_server_push(new_clone, ptr->hosts);
  97
  98   if (rc != MEMCACHED_SUCCESS)
  99   {
 100     memcached_free(new_clone);
 101
 102     return NULL;
 103   }
 104
 105
 106   new_clone->flags= ptr->flags;
 107   new_clone->send_size= ptr->send_size;
 108   new_clone->recv_size= ptr->recv_size;
 109   new_clone->poll_timeout= ptr->poll_timeout;
 110   new_clone->connect_timeout= ptr->connect_timeout;
 111   new_clone->retry_timeout= ptr->retry_timeout;
 112   new_clone->distribution= ptr->distribution;
 113   new_clone->hash= ptr->hash;
 114   new_clone->user_data= ptr->user_data;
 115
 116   new_clone->on_clone= ptr->on_clone;
 117   new_clone->on_cleanup= ptr->on_cleanup;
 118   new_clone->call_free= ptr->call_free;
 119   new_clone->call_malloc= ptr->call_malloc;
 120   new_clone->call_realloc= ptr->call_realloc;
 121   new_clone->get_key_failure= ptr->get_key_failure;
 122   new_clone->delete_trigger= ptr->delete_trigger;
 123
 124   rc= run_distribution(new_clone);
 125   if (rc != MEMCACHED_SUCCESS)
 126   {
 127     memcached_free(new_clone);
 128
 129     return NULL;
 130   }
 131
 132   if (ptr->on_clone)
 133     ptr->on_clone(ptr, new_clone);
 134
 135   return new_clone;
 136 }