git.m6w6.name Git - m6w6/libmemcached/blob - libmemcached/memcached.h

   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: interface for memcached server
   9  * Description: main include file for libmemcached
  10  *
  11  */
  12
  13 #ifndef __LIBMEMCACHED_MEMCACHED_H__
  14 #define __LIBMEMCACHED_MEMCACHED_H__
  15
  16 #include <inttypes.h>
  17 #include <netdb.h>
  18 #include <netinet/in.h>
  19 #include <stdlib.h>
  20 #include <sys/types.h>
  21
  22
  23 #if !defined(__cplusplus)
  24 # include <stdbool.h>
  25 #endif
  26
  27 #include <libmemcached/visibility.h>
  28 #include <libmemcached/configure.h>
  29 #include <libmemcached/constants.h>
  30 #include <libmemcached/types.h>
  31 #include <libmemcached/string.h>
  32 #include <libmemcached/stats.h>
  33 #include <libhashkit/hashkit.h>
  34 // Everything above this line must be in the order specified.
  35 #include <libmemcached/allocators.h>
  36 #include <libmemcached/analyze.h>
  37 #include <libmemcached/auto.h>
  38 #include <libmemcached/behavior.h>
  39 #include <libmemcached/callback.h>
  40 #include <libmemcached/delete.h>
  41 #include <libmemcached/dump.h>
  42 #include <libmemcached/fetch.h>
  43 #include <libmemcached/flush.h>
  44 #include <libmemcached/flush_buffers.h>
  45 #include <libmemcached/get.h>
  46 #include <libmemcached/hash.h>
  47 #include <libmemcached/parse.h>
  48 #include <libmemcached/quit.h>
  49 #include <libmemcached/result.h>
  50 #include <libmemcached/server.h>
  51 #include <libmemcached/storage.h>
  52 #include <libmemcached/strerror.h>
  53 #include <libmemcached/verbosity.h>
  54 #include <libmemcached/version.h>
  55
  56 struct memcached_st {
  57   /**
  58     @note these are static and should not change without a call to behavior.
  59   */
  60   struct {
  61     bool is_purging MEMCACHED_BITFIELD;
  62     bool is_processing_input MEMCACHED_BITFIELD;
  63   } state;
  64   struct {
  65     // Everything below here is pretty static.
  66     bool auto_eject_hosts MEMCACHED_BITFIELD;
  67     bool binary_protocol MEMCACHED_BITFIELD;
  68     bool buffer_requests MEMCACHED_BITFIELD;
  69     bool cork MEMCACHED_BITFIELD;
  70     bool hash_with_prefix_key MEMCACHED_BITFIELD;
  71     bool ketama_weighted MEMCACHED_BITFIELD;
  72     bool no_block MEMCACHED_BITFIELD;
  73     bool no_reply MEMCACHED_BITFIELD;
  74     bool randomize_replica_read MEMCACHED_BITFIELD;
  75     bool reuse_memory MEMCACHED_BITFIELD;
  76     bool support_cas MEMCACHED_BITFIELD;
  77     bool tcp_nodelay MEMCACHED_BITFIELD;
  78     bool use_cache_lookups MEMCACHED_BITFIELD;
  79     bool use_sort_hosts MEMCACHED_BITFIELD;
  80     bool use_udp MEMCACHED_BITFIELD;
  81     bool verify_key MEMCACHED_BITFIELD;
  82   } flags;
  83   memcached_server_distribution_t distribution;
  84   hashkit_st hashkit;
  85   uint32_t continuum_points_counter; // Ketama
  86   uint32_t number_of_hosts;
  87   memcached_server_st *servers;
  88   memcached_server_st *last_disconnected_server;
  89   int32_t snd_timeout;
  90   int32_t rcv_timeout;
  91   uint32_t server_failure_limit;
  92   uint32_t io_msg_watermark;
  93   uint32_t io_bytes_watermark;
  94   uint32_t io_key_prefetch;
  95   int cached_errno;
  96   int32_t poll_timeout;
  97   int32_t connect_timeout;
  98   int32_t retry_timeout;
  99   uint32_t continuum_count; // Ketama
 100   int send_size;
 101   int recv_size;
 102   void *user_data;
 103   time_t next_distribution_rebuild; // Ketama
 104   size_t prefix_key_length;
 105   uint32_t number_of_replicas;
 106   hashkit_st distribution_hashkit;
 107   memcached_result_st result;
 108   memcached_continuum_item_st *continuum; // Ketama
 109
 110   struct _allocators_st {
 111     memcached_calloc_fn calloc;
 112     memcached_free_fn free;
 113     memcached_malloc_fn malloc;
 114     memcached_realloc_fn realloc;
 115     void *context;
 116   } allocators;
 117
 118   memcached_clone_fn on_clone;
 119   memcached_cleanup_fn on_cleanup;
 120   memcached_trigger_key_fn get_key_failure;
 121   memcached_trigger_delete_key_fn delete_trigger;
 122   memcached_callback_st *callbacks;
 123   char prefix_key[MEMCACHED_PREFIX_KEY_MAX_SIZE];
 124   struct {
 125     bool is_allocated MEMCACHED_BITFIELD;
 126   } options;
 127
 128 };
 129
 130 #ifdef __cplusplus
 131 extern "C" {
 132 #endif
 133
 134 LIBMEMCACHED_API
 135 void memcached_servers_reset(memcached_st *ptr);
 136
 137 LIBMEMCACHED_API
 138 memcached_st *memcached_create(memcached_st *ptr);
 139
 140 LIBMEMCACHED_API
 141 void memcached_free(memcached_st *ptr);
 142
 143 LIBMEMCACHED_API
 144 memcached_st *memcached_clone(memcached_st *clone, const memcached_st *ptr);
 145
 146 LIBMEMCACHED_API
 147 void *memcached_get_user_data(const memcached_st *ptr);
 148
 149 LIBMEMCACHED_API
 150 void *memcached_set_user_data(memcached_st *ptr, void *data);
 151
 152 #ifdef __cplusplus
 153 } // extern "C"
 154 #endif
 155
 156
 157 // Local Only Inline
 158 static inline memcached_server_st *memcached_server_instance_fetch(memcached_st *ptr, uint32_t server_key)
 159 {
 160   return &ptr->servers[server_key];
 161 }
 162
 163 #ifdef __cplusplus
 164 class Memcached : private memcached_st {
 165 public:
 166
 167   Memcached()
 168   {
 169     memcached_create(this);
 170   }
 171
 172   ~Memcached()
 173   {
 174     memcached_free(this);
 175   }
 176
 177   Memcached(const Memcached& source)
 178   {
 179     memcached_clone(this, &source);
 180   }
 181
 182   Memcached& operator=(const Memcached& source)
 183   {
 184     memcached_free(this);
 185     memcached_clone(this, &source);
 186
 187     return *this;
 188   }
 189 };
 190 #endif
 191
 192 #endif /* __LIBMEMCACHED_MEMCACHED_H__ */
 193