git.m6w6.name Git - m6w6/libmemcached/blob - lib/common.h

   1 /*
   2   Common include file for libmemached
   3 */
   4
   5 #ifndef __COMMON_H__
   6 #define __COMMON_H__
   7
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <ctype.h>
  12 #include <sys/types.h>
  13 #include <sys/socket.h>
  14 #include <netinet/in.h>
  15 #include <arpa/inet.h>
  16 #include <netdb.h>
  17 #include <unistd.h>
  18 #include <limits.h>
  19 #include <assert.h>
  20 #include <errno.h>
  21 #include <fcntl.h>
  22 #include <sys/un.h>
  23 #include <netinet/tcp.h>
  24
  25 #if TIME_WITH_SYS_TIME
  26 # include <sys/time.h>
  27 # include <time.h>
  28 #else
  29 # if HAVE_SYS_TIME_H
  30 #  include <sys/time.h>
  31 # else
  32 #  include <time.h>
  33 # endif
  34 #endif
  35
  36
  37
  38 #include <memcached.h>
  39 #include "memcached_io.h"
  40
  41 #include <libmemcached_config.h>
  42
  43 #ifdef HAVE_DTRACE
  44 #define _DTRACE_VERSION 1
  45 #else
  46 #undef _DTRACE_VERSION
  47 #endif
  48
  49 #include "libmemcached_probes.h"
  50
  51 #define MEMCACHED_BLOCK_SIZE 1024
  52 #define MEMCACHED_DEFAULT_COMMAND_SIZE 350
  53 #define SMALL_STRING_LEN 1024
  54 #define HUGE_STRING_LEN 8196
  55
  56
  57 typedef enum {
  58   MEM_NO_BLOCK= (1 << 0),
  59   MEM_TCP_NODELAY= (1 << 1),
  60   MEM_REUSE_MEMORY= (1 << 2),
  61   MEM_USE_MD5= (1 << 3),
  62   MEM_USE_KETAMA= (1 << 4),
  63   MEM_USE_CRC= (1 << 5),
  64   MEM_USE_CACHE_LOOKUPS= (1 << 6),
  65   MEM_SUPPORT_CAS= (1 << 7),
  66   MEM_BUFFER_REQUESTS= (1 << 8),
  67   MEM_USE_SORT_HOSTS= (1 << 9),
  68   MEM_VERIFY_KEY= (1 << 10),
  69 } memcached_flags;
  70
  71 /* Hashing algo */
  72 void md5_signature(unsigned char *key, unsigned int length, unsigned char *result);
  73 uint32_t hash_crc32(const char *data,
  74                     size_t data_len);
  75 uint32_t hsieh_hash(char *key, size_t key_length);
  76 uint32_t murmur_hash(char *key, size_t key_length);
  77
  78 memcached_return memcached_connect(memcached_server_st *ptr);
  79 memcached_return memcached_response(memcached_server_st *ptr,
  80                                     char *buffer, size_t buffer_length,
  81                                     memcached_result_st *result);
  82 unsigned int memcached_generate_hash(memcached_st *ptr, char *key, size_t key_length);
  83 void memcached_quit_server(memcached_server_st *ptr, uint8_t io_death);
  84
  85 #define memcached_server_response_increment(A) (A)->cursor_active++
  86 #define memcached_server_response_decrement(A) (A)->cursor_active--
  87 #define memcached_server_response_reset(A) (A)->cursor_active=0
  88
  89 /* String Struct */
  90 #define memcached_string_length(A) (size_t)((A)->end - (A)->string)
  91 #define memcached_string_set_length(A, B) (A)->end= (A)->string + B
  92 #define memcached_string_size(A) (A)->current_size
  93 #define memcached_string_value(A) (A)->string
  94
  95 memcached_string_st *memcached_string_create(memcached_st *ptr,
  96                                              memcached_string_st *string,
  97                                              size_t initial_size);
  98 memcached_return memcached_string_check(memcached_string_st *string, size_t need);
  99 char *memcached_string_c_copy(memcached_string_st *string);
 100 memcached_return memcached_string_append_character(memcached_string_st *string,
 101                                                    char character);
 102 memcached_return memcached_string_append(memcached_string_st *string,
 103                                          char *value, size_t length);
 104 size_t memcached_string_backspace(memcached_string_st *string, size_t remove);
 105 memcached_return memcached_string_reset(memcached_string_st *string);
 106 void memcached_string_free(memcached_string_st *string);
 107 memcached_return memcached_do(memcached_server_st *ptr, char *commmand,
 108                               size_t command_length, uint8_t with_flush);
 109 memcached_return memcached_version(memcached_st *ptr);
 110 memcached_return value_fetch(memcached_server_st *ptr,
 111                              char *buffer,
 112                              memcached_result_st *result);
 113 void server_list_free(memcached_st *ptr, memcached_server_st *servers);
 114
 115 memcached_return memcachd_key_test(char **keys, size_t *key_length,
 116                                    unsigned int number_of_keys);
 117
 118 #endif /* __COMMON_H__ */