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   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 <stdlib.h>
  18 #include <sys/types.h>
  19
  20
  21 #if !defined(__cplusplus)
  22 # include <stdbool.h>
  23 #endif
  24
  25 #include <libmemcached/visibility.h>
  26 #include <libmemcached/configure.h>
  27 #include <libmemcached/platform.h>
  28 #include <libmemcached/constants.h>
  29 #include <libmemcached/types.h>
  30 #include <libmemcached/string.h>
  31 #include <libmemcached/array.h>
  32 #include <libmemcached/error.h>
  33 #include <libmemcached/stats.h>
  34 #include <libhashkit/hashkit.h>
  35 // Everything above this line must be in the order specified.
  36 #include <libmemcached/allocators.h>
  37 #include <libmemcached/analyze.h>
  38 #include <libmemcached/auto.h>
  39 #include <libmemcached/behavior.h>
  40 #include <libmemcached/callback.h>
  41 #include <libmemcached/delete.h>
  42 #include <libmemcached/dump.h>
  43 #include <libmemcached/fetch.h>
  44 #include <libmemcached/flush.h>
  45 #include <libmemcached/flush_buffers.h>
  46 #include <libmemcached/get.h>
  47 #include <libmemcached/hash.h>
  48 #include <libmemcached/options.h>
  49 #include <libmemcached/parse.h>
  50 #include <libmemcached/quit.h>
  51 #include <libmemcached/result.h>
  52 #include <libmemcached/server.h>
  53 #include <libmemcached/server_list.h>
  54 #include <libmemcached/storage.h>
  55 #include <libmemcached/strerror.h>
  56 #include <libmemcached/verbosity.h>
  57 #include <libmemcached/version.h>
  58 #include <libmemcached/sasl.h>
  59
  60 struct memcached_st {
  61   /**
  62     @note these are static and should not change without a call to behavior.
  63   */
  64   struct {
  65     bool is_purging:1;
  66     bool is_processing_input:1;
  67     bool is_time_for_rebuild:1;
  68   } state;
  69   struct {
  70     // Everything below here is pretty static.
  71     bool auto_eject_hosts:1;
  72     bool binary_protocol:1;
  73     bool buffer_requests:1;
  74     bool cork:1;
  75     bool hash_with_prefix_key:1;
  76     bool ketama_weighted:1;
  77     bool no_block:1; // Don't block
  78     bool no_reply:1;
  79     bool randomize_replica_read:1;
  80     bool reuse_memory:1;
  81     bool support_cas:1;
  82     bool tcp_nodelay:1;
  83     bool use_cache_lookups:1;
  84     bool use_sort_hosts:1;
  85     bool use_udp:1;
  86     bool verify_key:1;
  87     bool tcp_keepalive:1;
  88     bool load_from_file:1;
  89   } flags;
  90   memcached_server_distribution_t distribution;
  91   hashkit_st hashkit;
  92   uint32_t continuum_points_counter; // Ketama
  93   uint32_t number_of_hosts;
  94   memcached_server_st *servers;
  95   memcached_server_st *last_disconnected_server;
  96   int32_t snd_timeout;
  97   int32_t rcv_timeout;
  98   uint32_t server_failure_limit;
  99   uint32_t io_msg_watermark;
 100   uint32_t io_bytes_watermark;
 101   uint32_t io_key_prefetch;
 102   uint32_t tcp_keepidle;
 103   int cached_errno;
 104   int32_t poll_timeout;
 105   int32_t connect_timeout;
 106   int32_t retry_timeout;
 107   uint32_t continuum_count; // Ketama
 108   int send_size;
 109   int recv_size;
 110   void *user_data;
 111   time_t next_distribution_rebuild; // Ketama
 112   uint32_t number_of_replicas;
 113   hashkit_st distribution_hashkit;
 114   memcached_result_st result;
 115   memcached_continuum_item_st *continuum; // Ketama
 116
 117   struct _allocators_st {
 118     memcached_calloc_fn calloc;
 119     memcached_free_fn free;
 120     memcached_malloc_fn malloc;
 121     memcached_realloc_fn realloc;
 122     void *context;
 123   } allocators;
 124
 125   memcached_clone_fn on_clone;
 126   memcached_cleanup_fn on_cleanup;
 127   memcached_trigger_key_fn get_key_failure;
 128   memcached_trigger_delete_key_fn delete_trigger;
 129   memcached_callback_st *callbacks;
 130   struct memcached_sasl_st sasl;
 131   struct memcached_error_st *error_messages;
 132   struct memcached_array_st *prefix_key;
 133   struct {
 134     bool is_allocated:1;
 135   } options;
 136
 137 };
 138
 139 #ifdef __cplusplus
 140 extern "C" {
 141 #endif
 142
 143 LIBMEMCACHED_API
 144 void memcached_servers_reset(memcached_st *ptr);
 145
 146 LIBMEMCACHED_API
 147 memcached_st *memcached_create(memcached_st *ptr);
 148
 149 LIBMEMCACHED_API
 150 void memcached_free(memcached_st *ptr);
 151
 152 LIBMEMCACHED_API
 153 void memcached_reset(memcached_st *ptr);
 154
 155 LIBMEMCACHED_API
 156 void memcached_reset_last_disconnected_server(memcached_st *ptr);
 157
 158 LIBMEMCACHED_API
 159 memcached_st *memcached_clone(memcached_st *clone, const memcached_st *ptr);
 160
 161 LIBMEMCACHED_API
 162 void *memcached_get_user_data(const memcached_st *ptr);
 163
 164 LIBMEMCACHED_API
 165 void *memcached_set_user_data(memcached_st *ptr, void *data);
 166
 167 LIBMEMCACHED_API
 168 memcached_return_t memcached_push(memcached_st *destination, const memcached_st *source);
 169
 170 LIBMEMCACHED_API
 171 memcached_server_instance_st memcached_server_instance_by_position(const memcached_st *ptr, uint32_t server_key);
 172
 173 LIBMEMCACHED_API
 174 uint32_t memcached_server_count(const memcached_st *);
 175
 176 #ifdef __cplusplus
 177 } // extern "C"
 178 #endif
 179
 180
 181 #ifdef __cplusplus
 182 class Memcached : private memcached_st {
 183 public:
 184
 185   Memcached()
 186   {
 187     memcached_create(this);
 188   }
 189
 190   ~Memcached()
 191   {
 192     memcached_free(this);
 193   }
 194
 195   Memcached(const Memcached& source)
 196   {
 197     memcached_clone(this, &source);
 198   }
 199
 200   Memcached& operator=(const Memcached& source)
 201   {
 202     memcached_free(this);
 203     memcached_clone(this, &source);
 204
 205     return *this;
 206   }
 207 };
 208 #endif
 209
 210 #endif /* __LIBMEMCACHED_MEMCACHED_H__ */
 211