Allows zero as a value for retry.
[m6w6/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/
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are
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11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * * Redistributions in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following disclaimer
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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35 */
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 memcached_server_st *__server_create_with(memcached_st *memc,
47 memcached_server_st* self,
48 const memcached_string_t& hostname,
49 const in_port_t port,
50 uint32_t weight,
51 const memcached_connection_t type);
52
53 memcached_return_t memcached_server_add_parsed(memcached_st *ptr,
54 const char *hostname,
55 size_t hostname_length,
56 in_port_t port,
57 uint32_t weight);
58
59 void __server_free(memcached_server_st *);
60
61 static inline bool memcached_is_valid_servername(const memcached_string_t& arg)
62 {
63 return (arg.c_str != NULL or arg.size == 0) and arg.size < MEMCACHED_NI_MAXHOST;
64 }
65
66 static inline bool memcached_is_valid_filename(const memcached_string_t& arg)
67 {
68 return arg.c_str != NULL and arg.size > 0 and arg.size < MEMCACHED_NI_MAXHOST;
69 }
70
71 void memcached_instance_free(memcached_instance_st *);
72
73 void set_last_disconnected_host(memcached_instance_st* self);
74
75 static inline void memcached_mark_server_for_timeout(memcached_instance_st* server)
76 {
77 if (server->state != MEMCACHED_SERVER_STATE_IN_TIMEOUT)
78 {
79 if (server->root->retry_timeout != 0)
80 {
81 struct timeval next_time;
82 if (gettimeofday(&next_time, NULL) == 0)
83 {
84 server->next_retry= next_time.tv_sec +server->root->retry_timeout;
85 }
86 else
87 {
88 server->next_retry= 1; // Setting the value to 1 causes the timeout to occur immediatly
89 }
90
91 server->state= MEMCACHED_SERVER_STATE_IN_TIMEOUT;
92 }
93 if (server->server_failure_counter_query_id != server->root->query_id)
94 {
95 server->server_failure_counter++;
96 server->server_failure_counter_query_id= server->root->query_id;
97 }
98 set_last_disconnected_host(server);
99 }
100 }