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->is_allocated == MEMCACHED_ALLOCATED)
  53   {
  54     if (ptr->call_free)
  55       ptr->call_free(ptr, ptr);
  56     else
  57       free(ptr);
  58   }
  59   else
  60     ptr->is_allocated= MEMCACHED_USED;
  61 }
  62
  63 /*
  64   clone is the destination, while source is the structure to clone.
  65   If source is NULL the call is the same as if a memcached_create() was
  66   called.
  67 */
  68 memcached_st *memcached_clone(memcached_st *clone, memcached_st *source)
  69 {
  70   memcached_return rc= MEMCACHED_SUCCESS;
  71   memcached_st *new_clone;
  72
  73   if (source == NULL)
  74     return memcached_create(clone);
  75
  76   if (clone && clone->is_allocated == MEMCACHED_USED)
  77   {
  78     return NULL;
  79   }
  80
  81   new_clone= memcached_create(clone);
  82
  83   if (new_clone == NULL)
  84     return NULL;
  85
  86   if (source->hosts)
  87     rc= memcached_server_push(new_clone, source->hosts);
  88
  89   if (rc != MEMCACHED_SUCCESS)
  90   {
  91     memcached_free(new_clone);
  92
  93     return NULL;
  94   }
  95
  96
  97   new_clone->flags= source->flags;
  98   new_clone->send_size= source->send_size;
  99   new_clone->recv_size= source->recv_size;
 100   new_clone->poll_timeout= source->poll_timeout;
 101   new_clone->connect_timeout= source->connect_timeout;
 102   new_clone->retry_timeout= source->retry_timeout;
 103   new_clone->distribution= source->distribution;
 104   new_clone->hash= source->hash;
 105   new_clone->hash_continuum= source->hash_continuum;
 106   new_clone->user_data= source->user_data;
 107
 108   new_clone->snd_timeout= source->snd_timeout;
 109   new_clone->rcv_timeout= source->rcv_timeout;
 110
 111   new_clone->on_clone= source->on_clone;
 112   new_clone->on_cleanup= source->on_cleanup;
 113   new_clone->call_free= source->call_free;
 114   new_clone->call_malloc= source->call_malloc;
 115   new_clone->call_realloc= source->call_realloc;
 116   new_clone->get_key_failure= source->get_key_failure;
 117   new_clone->delete_trigger= source->delete_trigger;
 118
 119   if (source->prefix_key[0] != 0)
 120   {
 121     strcpy(new_clone->prefix_key, source->prefix_key);
 122     new_clone->prefix_key_length= source->prefix_key_length;
 123   }
 124
 125   rc= run_distribution(new_clone);
 126   if (rc != MEMCACHED_SUCCESS)
 127   {
 128     memcached_free(new_clone);
 129
 130     return NULL;
 131   }
 132
 133   if (source->on_clone)
 134     source->on_clone(source, new_clone);
 135
 136   return new_clone;
 137 }