Updating for 1.0.2 release
[awesomized/libmemcached] / libmemcached / server.hpp
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
2 *
3 * Libmemcached library
4 *
5 * Copyright (C) 2011 Data Differential, http://datadifferential.com/
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16 * in the documentation and/or other materials provided with the
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22 *
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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36
37
38 #pragma once
39
40 #ifdef HAVE_SYS_TIME_H
41 #include <sys/time.h>
42 #endif
43
44 #include <cassert>
45
46 static inline bool memcached_is_valid_servername(const memcached_string_t& arg)
47 {
48 return arg.size > 0 or arg.size < NI_MAXHOST;
49 }
50
51 static inline void memcached_mark_server_as_clean(memcached_server_write_instance_st server)
52 {
53 server->server_failure_counter= 0;
54 server->next_retry= 0;
55 }
56
57
58 static inline void set_last_disconnected_host(memcached_server_write_instance_st self)
59 {
60 assert(self->root);
61 if (self->root == NULL)
62 {
63 return;
64 }
65
66 if (self->root->last_disconnected_server and self->root->last_disconnected_server->version == self->version)
67 {
68 return;
69 }
70
71 // const_cast
72 memcached_st *root= (memcached_st *)self->root;
73
74 memcached_server_free(root->last_disconnected_server);
75 root->last_disconnected_server= memcached_server_clone(NULL, self);
76 root->last_disconnected_server->version= self->version;
77 }
78
79 static inline void memcached_mark_server_for_timeout(memcached_server_write_instance_st server)
80 {
81 if (server->state != MEMCACHED_SERVER_STATE_IN_TIMEOUT)
82 {
83 struct timeval next_time;
84 if (gettimeofday(&next_time, NULL) == 0)
85 {
86 server->next_retry= next_time.tv_sec +server->root->retry_timeout;
87 }
88 else
89 {
90 server->next_retry= 1; // Setting the value to 1 causes the timeout to occur immediatly
91 }
92
93 server->state= MEMCACHED_SERVER_STATE_IN_TIMEOUT;
94 if (server->server_failure_counter_query_id != server->root->query_id)
95 {
96 server->server_failure_counter++;
97 server->server_failure_counter_query_id= server->root->query_id;
98 }
99 set_last_disconnected_host(server);
100 }
101 }
102
103 LIBMEMCACHED_LOCAL
104 memcached_server_st *__server_create_with(memcached_st *memc,
105 memcached_server_write_instance_st host,
106 const memcached_string_t& hostname,
107 const in_port_t port,
108 uint32_t weight,
109 const memcached_connection_t type);