Added MEMCACHED_BEHAVIOR_CACHE_LOOKUPS flag (you can now avoid multiple DNS
[awesomized/libmemcached] / 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 <time.h>
21 #include <errno.h>
22
23
24 #include <memcached.h>
25 #include "memcached_io.h"
26
27 #include <libmemcached_config.h>
28
29 #ifdef HAVE_DTRACE
30 #define _DTRACE_VERSION 1
31 #else
32 #undef _DTRACE_VERSION
33 #endif
34
35 #include "libmemcached_probes.h"
36
37 #define MEMCACHED_BLOCK_SIZE 1024
38
39 typedef enum {
40 MEM_NO_BLOCK= (1 << 0),
41 MEM_TCP_NODELAY= (1 << 1),
42 MEM_REUSE_MEMORY= (1 << 2),
43 MEM_USE_MD5= (1 << 3),
44 MEM_USE_KETAMA= (1 << 4),
45 MEM_USE_CRC= (1 << 5),
46 MEM_USE_CACHE_LOOKUPS= (1 << 6),
47 } memcached_flags;
48
49 /* Hashing algo */
50 void md5_signature(unsigned char *key, unsigned int length, unsigned char *result);
51 uint32_t hash_crc32(const char *data,
52 size_t data_len);
53
54 memcached_return memcached_connect(memcached_st *ptr, unsigned int server_key);
55 memcached_return memcached_response(memcached_st *ptr,
56 char *buffer, size_t buffer_length,
57 unsigned int server_key);
58 unsigned int memcached_generate_hash(memcached_st *ptr, char *key, size_t key_length);
59 void memcached_quit_server(memcached_st *ptr, unsigned int server_key);
60
61 #define memcached_server_response_increment(A,B) A->hosts[B].stack_responses++
62 #define memcached_server_response_decrement(A,B) A->hosts[B].stack_responses--
63
64 /* String Struct */
65 #define memcached_string_length(A) (size_t)(A->end - A->string)
66 #define memcached_string_set_length(A, B) A->end= A->string + B
67 #define memcached_string_size(A) A->current_size
68 #define memcached_string_value(A) A->string
69
70 memcached_string_st *memcached_string_create(memcached_st *ptr,
71 memcached_string_st *string,
72 size_t initial_size);
73 memcached_return memcached_string_check(memcached_string_st *string, size_t need);
74 char *memcached_string_c_copy(memcached_string_st *string);
75 memcached_return memcached_string_append_character(memcached_string_st *string,
76 char character);
77 memcached_return memcached_string_append(memcached_string_st *string,
78 char *value, size_t length);
79 size_t memcached_string_backspace(memcached_string_st *string, size_t remove);
80 memcached_return memcached_string_reset(memcached_string_st *string);
81 void memcached_string_free(memcached_string_st *string);
82 memcached_return memcached_do(memcached_st *ptr, unsigned int server_key, char *commmand,
83 size_t command_length, char with_flush);
84 memcached_return memcached_version(memcached_st *ptr);
85
86
87
88 #endif /* __COMMON_H__ */