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 "0.28"
  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   time_t next_distribution_rebuild;
 121 };
 122
 123
 124 /* Public API */
 125 const char * memcached_lib_version(void);
 126
 127 memcached_st *memcached_create(memcached_st *ptr);
 128 void memcached_free(memcached_st *ptr);
 129 memcached_st *memcached_clone(memcached_st *clone, memcached_st *ptr);
 130
 131 memcached_return memcached_delete(memcached_st *ptr, const char *key, size_t key_length,
 132                                   time_t expiration);
 133 memcached_return memcached_increment(memcached_st *ptr,
 134                                      const char *key, size_t key_length,
 135                                      uint32_t offset,
 136                                      uint64_t *value);
 137 memcached_return memcached_decrement(memcached_st *ptr,
 138                                      const char *key, size_t key_length,
 139                                      uint32_t offset,
 140                                      uint64_t *value);
 141 memcached_return memcached_increment_with_initial(memcached_st *ptr,
 142                                                   const char *key,
 143                                                   size_t key_length,
 144                                                   uint64_t offset,
 145                                                   uint64_t initial,
 146                                                   time_t expiration,
 147                                                   uint64_t *value);
 148 memcached_return memcached_decrement_with_initial(memcached_st *ptr,
 149                                                   const char *key,
 150                                                   size_t key_length,
 151                                                   uint64_t offset,
 152                                                   uint64_t initial,
 153                                                   time_t expiration,
 154                                                   uint64_t *value);
 155 void memcached_stat_free(memcached_st *, memcached_stat_st *);
 156 memcached_stat_st *memcached_stat(memcached_st *ptr, char *args, memcached_return *error);
 157 memcached_return memcached_stat_servername(memcached_stat_st *stat, char *args,
 158                                            char *hostname, unsigned int port);
 159 memcached_return memcached_flush(memcached_st *ptr, time_t expiration);
 160 memcached_return memcached_verbosity(memcached_st *ptr, unsigned int verbosity);
 161 void memcached_quit(memcached_st *ptr);
 162 char *memcached_strerror(memcached_st *ptr, memcached_return rc);
 163 memcached_return memcached_behavior_set(memcached_st *ptr, memcached_behavior flag, uint64_t data);
 164 uint64_t memcached_behavior_get(memcached_st *ptr, memcached_behavior flag);
 165 uint32_t memcached_generate_hash_value(const char *key, size_t key_length, memcached_hash hash_algorithm);
 166 memcached_return memcached_flush_buffers(memcached_st *mem);
 167
 168 /* Server Public functions */
 169
 170 memcached_return memcached_server_add_udp(memcached_st *ptr,
 171                                           const char *hostname,
 172                                           unsigned int port);
 173 memcached_return memcached_server_add_unix_socket(memcached_st *ptr,
 174                                                   const char *filename);
 175 memcached_return memcached_server_add(memcached_st *ptr, const char *hostname,
 176                                       unsigned int port);
 177
 178 memcached_return memcached_server_add_udp_with_weight(memcached_st *ptr,
 179                                                       const char *hostname,
 180                                                       unsigned int port,
 181                                                       uint32_t weight);
 182 memcached_return memcached_server_add_unix_socket_with_weight(memcached_st *ptr,
 183                                                               const char *filename,
 184                                                               uint32_t weight);
 185 memcached_return memcached_server_add_with_weight(memcached_st *ptr, const char *hostname,
 186                                                   unsigned int port,
 187                                                   uint32_t weight);
 188 void memcached_server_list_free(memcached_server_st *ptr);
 189 memcached_return memcached_server_push(memcached_st *ptr, memcached_server_st *list);
 190
 191 memcached_server_st *memcached_server_list_append(memcached_server_st *ptr,
 192                                                   const char *hostname,
 193                                                   unsigned int port,
 194                                                   memcached_return *error);
 195 memcached_server_st *memcached_server_list_append_with_weight(memcached_server_st *ptr,
 196                                                               const char *hostname,
 197                                                               unsigned int port,
 198                                                               uint32_t weight,
 199                                                               memcached_return *error);
 200 unsigned int memcached_server_list_count(memcached_server_st *ptr);
 201 memcached_server_st *memcached_servers_parse(const char *server_strings);
 202
 203 char *memcached_stat_get_value(memcached_st *ptr, memcached_stat_st *stat,
 204                                const char *key, memcached_return *error);
 205 char ** memcached_stat_get_keys(memcached_st *ptr, memcached_stat_st *stat,
 206                                 memcached_return *error);
 207
 208 memcached_return memcached_delete_by_key(memcached_st *ptr,
 209                                          const char *master_key, size_t master_key_length,
 210                                          const char *key, size_t key_length,
 211                                          time_t expiration);
 212
 213 memcached_return memcached_fetch_execute(memcached_st *ptr,
 214                                              memcached_execute_function *callback,
 215                                              void *context,
 216                                              unsigned int number_of_callbacks);
 217
 218 memcached_return memcached_callback_set(memcached_st *ptr,
 219                                         memcached_callback flag,
 220                                         void *data);
 221 void *memcached_callback_get(memcached_st *ptr,
 222                              memcached_callback flag,
 223                              memcached_return *error);
 224
 225
 226 #ifdef __cplusplus
 227 }
 228 #endif
 229
 230 #include <libmemcached/memcached_storage.h>
 231
 232 #endif /* __MEMCACHED_H__ */