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