git.m6w6.name Git - awesomized/libmemcached/blob - libmemcached/callback.cc

   1 /* LibMemcached
   2  * Copyright (C) 2006-2009 Brian Aker
   3  * All rights reserved.
   4  *
   5  * Use and distribution licensed under the BSD license.  See
   6  * the COPYING file in the parent directory for full text.
   7  *
   8  * Summary: Change any of the possible callbacks.
   9  *
  10  */
  11
  12 #include <libmemcached/common.h>
  13 #include <sys/types.h>
  14
  15 #pragma GCC diagnostic ignored "-Wstrict-aliasing"
  16
  17 /*
  18   These functions provide data and function callback support
  19 */
  20
  21 memcached_return_t memcached_callback_set(memcached_st *ptr,
  22                                           const memcached_callback_t flag,
  23                                           const void *data)
  24 {
  25   switch (flag)
  26   {
  27   case MEMCACHED_CALLBACK_PREFIX_KEY:
  28     {
  29       return memcached_set_namespace(ptr, (char*)data, data ? strlen((char*)data) : 0);
  30     }
  31   case MEMCACHED_CALLBACK_USER_DATA:
  32     {
  33       ptr->user_data= const_cast<void *>(data);
  34       break;
  35     }
  36   case MEMCACHED_CALLBACK_CLEANUP_FUNCTION:
  37     {
  38       memcached_cleanup_fn func= *(memcached_cleanup_fn *)&data;
  39       ptr->on_cleanup= func;
  40       break;
  41     }
  42   case MEMCACHED_CALLBACK_CLONE_FUNCTION:
  43     {
  44       memcached_clone_fn func= *(memcached_clone_fn *)&data;
  45       ptr->on_clone= func;
  46       break;
  47     }
  48 #ifdef MEMCACHED_ENABLE_DEPRECATED
  49   case MEMCACHED_CALLBACK_MALLOC_FUNCTION:
  50     {
  51       memcached_malloc_function func= *(memcached_malloc_fn *)&data;
  52       ptr->call_malloc= func;
  53       break;
  54     }
  55   case MEMCACHED_CALLBACK_REALLOC_FUNCTION:
  56     {
  57       memcached_realloc_function func= *(memcached_realloc_fn *)&data;
  58       ptr->call_realloc= func;
  59       break;
  60     }
  61   case MEMCACHED_CALLBACK_FREE_FUNCTION:
  62     {
  63       memcached_free_function func= *(memcached_free_fn *)&data;
  64       ptr->call_free= func;
  65       break;
  66     }
  67 #endif
  68   case MEMCACHED_CALLBACK_GET_FAILURE:
  69     {
  70       memcached_trigger_key_fn func= *(memcached_trigger_key_fn *)&data;
  71       ptr->get_key_failure= func;
  72       break;
  73     }
  74   case MEMCACHED_CALLBACK_DELETE_TRIGGER:
  75     {
  76       memcached_trigger_delete_key_fn func= *(memcached_trigger_delete_key_fn *)&data;
  77       ptr->delete_trigger= func;
  78       break;
  79     }
  80   case MEMCACHED_CALLBACK_MAX:
  81     return MEMCACHED_FAILURE;
  82   }
  83
  84   return MEMCACHED_SUCCESS;
  85 }
  86
  87 void *memcached_callback_get(memcached_st *ptr,
  88                              const memcached_callback_t flag,
  89                              memcached_return_t *error)
  90 {
  91   memcached_return_t local_error;
  92
  93   if (!error)
  94     error = &local_error;
  95
  96   switch (flag)
  97   {
  98   case MEMCACHED_CALLBACK_PREFIX_KEY:
  99     {
 100       if (ptr->_namespace)
 101       {
 102         *error= MEMCACHED_SUCCESS;
 103         return (void *)memcached_array_string(ptr->_namespace);
 104       }
 105       else
 106       {
 107         *error= MEMCACHED_FAILURE;
 108         return NULL;
 109       }
 110     }
 111   case MEMCACHED_CALLBACK_USER_DATA:
 112     {
 113       *error= ptr->user_data ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 114       return (void *)ptr->user_data;
 115     }
 116   case MEMCACHED_CALLBACK_CLEANUP_FUNCTION:
 117     {
 118       *error= ptr->on_cleanup ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 119       return *(void **)&ptr->on_cleanup;
 120     }
 121   case MEMCACHED_CALLBACK_CLONE_FUNCTION:
 122     {
 123       *error= ptr->on_clone ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 124       return *(void **)&ptr->on_clone;
 125     }
 126 #ifdef MEMCACHED_ENABLE_DEPRECATED
 127   case MEMCACHED_CALLBACK_MALLOC_FUNCTION:
 128     {
 129       *error= ptr->call_malloc ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 130       return *(void **)&ptr->call_malloc;
 131     }
 132   case MEMCACHED_CALLBACK_REALLOC_FUNCTION:
 133     {
 134       *error= ptr->call_realloc ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 135       return *(void **)&ptr->call_realloc;
 136     }
 137   case MEMCACHED_CALLBACK_FREE_FUNCTION:
 138     {
 139       *error= ptr->call_free ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 140       return *(void **)&ptr->call_free;
 141     }
 142 #endif
 143   case MEMCACHED_CALLBACK_GET_FAILURE:
 144     {
 145       *error= ptr->get_key_failure ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 146       return *(void **)&ptr->get_key_failure;
 147     }
 148   case MEMCACHED_CALLBACK_DELETE_TRIGGER:
 149     {
 150       *error= ptr->delete_trigger ? MEMCACHED_SUCCESS : MEMCACHED_FAILURE;
 151       return *(void **)&ptr->delete_trigger;
 152     }
 153   case MEMCACHED_CALLBACK_MAX:
 154   default:
 155     WATCHPOINT_ASSERT(0);
 156     *error= MEMCACHED_FAILURE;
 157     return NULL;
 158   }
 159 }