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

   1 /*
   2  * Summary: interface for memcached server
   3  * Description: main include file for libmemcached
   4  *
   5  * Copy: See Copyright for the status of this software.
   6  *
   7  * Author: Brian Aker
   8  */
   9
  10 #ifndef __MEMCACHED_H__
  11 #define __MEMCACHED_H__
  12
  13 #include <stdlib.h>
  14 #include <inttypes.h>
  15 #if !defined(__cplusplus)
  16 # include <stdbool.h>
  17 #endif
  18 #include <sys/types.h>
  19 #include <netinet/in.h>
  20
  21 #ifdef MEMCACHED_INTERNAL
  22 #include <libmemcached/libmemcached_config.h>
  23 #endif
  24 #include <libmemcached/memcached_constants.h>
  25 #include <libmemcached/memcached_types.h>
  26 #include <libmemcached/memcached_watchpoint.h>
  27 #include <libmemcached/memcached_get.h>
  28 #include <libmemcached/memcached_server.h>
  29 #include <libmemcached/memcached_string.h>
  30 #include <libmemcached/memcached_result.h>
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36 /* These are Private and should not be used by applications */
  37 #define MEMCACHED_VERSION_STRING_LENGTH 24
  38
  39 /* string value */
  40 struct memcached_continuum_item_st {
  41   uint32_t index;
  42   uint32_t value;
  43 };
  44
  45 #define LIBMEMCACHED_VERSION_STRING "0.29"
  46
  47 struct memcached_analysis_st {
  48   uint64_t most_used_bytes;
  49   uint64_t least_remaining_bytes;
  50   uint32_t average_item_size;
  51   uint32_t longest_uptime;
  52   uint32_t least_free_server;
  53   uint32_t most_consumed_server;
  54   uint32_t oldest_server;
  55   double pool_hit_ratio;
  56 };
  57
  58 struct memcached_stat_st {
  59   uint32_t pid;
  60   uint32_t uptime;
  61   uint32_t threads;
  62   uint32_t time;
  63   uint32_t pointer_size;
  64   uint32_t rusage_user_seconds;
  65   uint32_t rusage_user_microseconds;
  66   uint32_t rusage_system_seconds;
  67   uint32_t rusage_system_microseconds;
  68   uint32_t curr_items;
  69   uint32_t total_items;
  70   uint64_t limit_maxbytes;
  71   uint32_t curr_connections;
  72   uint32_t total_connections;
  73   uint32_t connection_structures;
  74   uint64_t bytes;
  75   uint64_t cmd_get;
  76   uint64_t cmd_set;
  77   uint64_t get_hits;
  78   uint64_t get_misses;
  79   uint64_t evictions;
  80   uint64_t bytes_read;
  81   uint64_t bytes_written;
  82   char version[MEMCACHED_VERSION_STRING_LENGTH];
  83 };
  84
  85 struct memcached_st {
  86   uint8_t purging;
  87   bool is_allocated;
  88   memcached_server_st *hosts;
  89   uint32_t number_of_hosts;
  90   uint32_t cursor_server;
  91   int cached_errno;
  92   uint32_t flags;
  93   int send_size;
  94   int recv_size;
  95   int32_t poll_timeout;
  96   int32_t connect_timeout;
  97   int32_t retry_timeout;
  98   memcached_result_st result;
  99   memcached_hash hash;
 100   memcached_server_distribution distribution;
 101   void *user_data;
 102   uint32_t continuum_count;
 103   memcached_continuum_item_st *continuum;
 104   memcached_clone_func on_clone;
 105   memcached_cleanup_func on_cleanup;
 106   memcached_free_function call_free;
 107   memcached_malloc_function call_malloc;
 108   memcached_realloc_function call_realloc;
 109   memcached_trigger_key get_key_failure;
 110   memcached_trigger_delete_key delete_trigger;
 111   char prefix_key[MEMCACHED_PREFIX_KEY_MAX_SIZE];
 112   size_t prefix_key_length;
 113   memcached_hash hash_continuum;
 114   uint32_t continuum_points_counter;
 115   int32_t snd_timeout;
 116   int32_t rcv_timeout;
 117   uint32_t server_failure_limit;
 118   uint32_t io_msg_watermark;
 119   uint32_t io_bytes_watermark;
 120   uint32_t io_key_prefetch;
 121   time_t next_distribution_rebuild;
 122 };
 123
 124
 125 /* Public API */
 126 const char * memcached_lib_version(void);
 127
 128 memcached_st *memcached_create(memcached_st *ptr);
 129 void memcached_free(memcached_st *ptr);
 130 memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr);
 131
 132 memcached_return memcached_delete(memcached_st *ptr, const char *key, size_t key_length,
 133                                   time_t expiration);
 134 memcached_return memcached_increment(memcached_st *ptr,
 135                                      const char *key, size_t key_length,
 136                                      uint32_t offset,
 137                                      uint64_t *value);
 138 memcached_return memcached_decrement(memcached_st *ptr,
 139                                      const char *key, size_t key_length,
 140                                      uint32_t offset,
 141                                      uint64_t *value);
 142 memcached_return memcached_increment_with_initial(memcached_st *ptr,
 143                                                   const char *key,
 144                                                   size_t key_length,
 145                                                   uint64_t offset,
 146                                                   uint64_t initial,
 147                                                   time_t expiration,
 148                                                   uint64_t *value);
 149 memcached_return memcached_decrement_with_initial(memcached_st *ptr,
 150                                                   const char *key,
 151                                                   size_t key_length,
 152                                                   uint64_t offset,
 153                                                   uint64_t initial,
 154                                                   time_t expiration,
 155                                                   uint64_t *value);
 156 void memcached_stat_free(memcached_st *, memcached_stat_st *);
 157 memcached_stat_st *memcached_stat(memcached_st *ptr, char *args, memcached_return *error);
 158 memcached_return memcached_stat_servername(memcached_stat_st *stat, char *args,
 159                                            char *hostname, unsigned int port);
 160 memcached_return memcached_flush(memcached_st *ptr, time_t expiration);
 161 memcached_return memcached_verbosity(memcached_st *ptr, unsigned int verbosity);
 162 void memcached_quit(memcached_st *ptr);
 163 char *memcached_strerror(memcached_st *ptr, memcached_return rc);
 164 memcached_return memcached_behavior_set(memcached_st *ptr, memcached_behavior flag, uint64_t data);
 165 uint64_t memcached_behavior_get(memcached_st *ptr, memcached_behavior flag);
 166 uint32_t memcached_generate_hash_value(const char *key, size_t key_length, memcached_hash hash_algorithm);
 167 memcached_return memcached_flush_buffers(memcached_st *mem);
 168
 169 /* Server Public functions */
 170
 171 memcached_return memcached_server_add_udp(memcached_st *ptr,
 172                                           const char *hostname,
 173                                           unsigned int port);
 174 memcached_return memcached_server_add_unix_socket(memcached_st *ptr,
 175                                                   const char *filename);
 176 memcached_return memcached_server_add(memcached_st *ptr, const char *hostname,
 177                                       unsigned int port);
 178
 179 memcached_return memcached_server_add_udp_with_weight(memcached_st *ptr,
 180                                                       const char *hostname,
 181                                                       unsigned int port,
 182                                                       uint32_t weight);
 183 memcached_return memcached_server_add_unix_socket_with_weight(memcached_st *ptr,
 184                                                               const char *filename,
 185                                                               uint32_t weight);
 186 memcached_return memcached_server_add_with_weight(memcached_st *ptr, const char *hostname,
 187                                                   unsigned int port,
 188                                                   uint32_t weight);
 189 void memcached_server_list_free(memcached_server_st *ptr);
 190 memcached_return memcached_server_push(memcached_st *ptr, memcached_server_st *list);
 191
 192 memcached_server_st *memcached_server_list_append(memcached_server_st *ptr,
 193                                                   const char *hostname,
 194                                                   unsigned int port,
 195                                                   memcached_return *error);
 196 memcached_server_st *memcached_server_list_append_with_weight(memcached_server_st *ptr,
 197                                                               const char *hostname,
 198                                                               unsigned int port,
 199                                                               uint32_t weight,
 200                                                               memcached_return *error);
 201 unsigned int memcached_server_list_count(memcached_server_st *ptr);
 202 memcached_server_st *memcached_servers_parse(const char *server_strings);
 203
 204 char *memcached_stat_get_value(memcached_st *ptr, memcached_stat_st *stat,
 205                                const char *key, memcached_return *error);
 206 char ** memcached_stat_get_keys(memcached_st *ptr, memcached_stat_st *stat,
 207                                 memcached_return *error);
 208
 209 memcached_return memcached_delete_by_key(memcached_st *ptr,
 210                                          const char *master_key, size_t master_key_length,
 211                                          const char *key, size_t key_length,
 212                                          time_t expiration);
 213
 214 memcached_return memcached_fetch_execute(memcached_st *ptr,
 215                                              memcached_execute_function *callback,
 216                                              void *context,
 217                                              unsigned int number_of_callbacks);
 218
 219 memcached_return memcached_callback_set(memcached_st *ptr,
 220                                         memcached_callback flag,
 221                                         void *data);
 222 void *memcached_callback_get(memcached_st *ptr,
 223                              memcached_callback flag,
 224                              memcached_return *error);
 225
 226
 227 #ifdef __cplusplus
 228 }
 229 #endif
 230
 231 #include <libmemcached/memcached_storage.h>
 232
 233 #endif /* __MEMCACHED_H__ */