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   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 #include "libmemcached_config.h"
  25
  26 #if TIME_WITH_SYS_TIME
  27 # include <sys/time.h>
  28 # include <time.h>
  29 #else
  30 # if HAVE_SYS_TIME_H
  31 #  include <sys/time.h>
  32 # else
  33 #  include <time.h>
  34 # endif
  35 #endif
  36
  37
  38
  39 #include <memcached.h>
  40 #include "memcached_io.h"
  41
  42 #include <libmemcached_config.h>
  43
  44 #ifdef HAVE_DTRACE
  45 #define _DTRACE_VERSION 1
  46 #else
  47 #undef _DTRACE_VERSION
  48 #endif
  49
  50 #include "libmemcached_probes.h"
  51
  52 #define MEMCACHED_BLOCK_SIZE 1024
  53
  54 typedef enum {
  55   MEM_NO_BLOCK= (1 << 0),
  56   MEM_TCP_NODELAY= (1 << 1),
  57   MEM_REUSE_MEMORY= (1 << 2),
  58   MEM_USE_MD5= (1 << 3),
  59   MEM_USE_KETAMA= (1 << 4),
  60   MEM_USE_CRC= (1 << 5),
  61   MEM_USE_CACHE_LOOKUPS= (1 << 6),
  62   MEM_SUPPORT_CAS= (1 << 7),
  63   MEM_BUFFER_REQUESTS= (1 << 8),
  64 } memcached_flags;
  65
  66 /* Hashing algo */
  67 void md5_signature(unsigned char *key, unsigned int length, unsigned char *result);
  68 uint32_t hash_crc32(const char *data,
  69                     size_t data_len);
  70 uint32_t hsieh_hash(char *key, size_t key_length);
  71
  72 memcached_return memcached_connect(memcached_st *ptr, unsigned int server_key);
  73 memcached_return memcached_response(memcached_st *ptr,
  74                                     char *buffer, size_t buffer_length,
  75                                     memcached_result_st *result,
  76                                     unsigned int server_key);
  77 unsigned int memcached_generate_hash(memcached_st *ptr, char *key, size_t key_length);
  78 void memcached_quit_server(memcached_st *ptr, unsigned int server_key, uint8_t io_death);
  79
  80 #define memcached_server_response_increment(A,B) A->hosts[B].cursor_active++
  81 #define memcached_server_response_decrement(A,B) A->hosts[B].cursor_active--
  82 #define memcached_server_response_reset(A,B) A->hosts[B].cursor_active=0
  83
  84 /* String Struct */
  85 #define memcached_string_length(A) (size_t)((A)->end - (A)->string)
  86 #define memcached_string_set_length(A, B) (A)->end= (A)->string + B
  87 #define memcached_string_size(A) (A)->current_size
  88 #define memcached_string_value(A) (A)->string
  89
  90 memcached_string_st *memcached_string_create(memcached_st *ptr,
  91                                              memcached_string_st *string,
  92                                              size_t initial_size);
  93 memcached_return memcached_string_check(memcached_string_st *string, size_t need);
  94 char *memcached_string_c_copy(memcached_string_st *string);
  95 memcached_return memcached_string_append_character(memcached_string_st *string,
  96                                                    char character);
  97 memcached_return memcached_string_append(memcached_string_st *string,
  98                                          char *value, size_t length);
  99 size_t memcached_string_backspace(memcached_string_st *string, size_t remove);
 100 memcached_return memcached_string_reset(memcached_string_st *string);
 101 void memcached_string_free(memcached_string_st *string);
 102 memcached_return memcached_do(memcached_st *ptr, unsigned int server_key, char *commmand,
 103                               size_t command_length, char with_flush);
 104 memcached_return memcached_version(memcached_st *ptr);
 105 memcached_return value_fetch(memcached_st *ptr,
 106                              char *buffer,
 107                              memcached_result_st *result,
 108                              unsigned int server_key);
 109
 110
 111 #endif /* __COMMON_H__ */