git.m6w6.name Git - awesomized/libmemcached/blob - tests/failure.cc

   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
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   9  *  met:
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  11  *      * Redistributions of source code must retain the above copyright
  12  *  notice, this list of conditions and the following disclaimer.
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  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
  17  *  distribution.
  18  *
  19  *      * The names of its contributors may not be used to endorse or
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  21  *  written permission.
  22  *
  23  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  24  *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  25  *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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  33  *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  35  */
  36
  37 #include <config.h>
  38
  39 /*
  40   C++ interface test
  41 */
  42 #include <libmemcached-1.0/memcached.hpp>
  43 #include <libmemcached/server_instance.h>
  44 #include <libtest/test.hpp>
  45
  46 #include <cstdio>
  47 #include <cstdlib>
  48 #include <cstring>
  49 #include <sys/time.h>
  50 #include <sys/types.h>
  51 #include <sys/stat.h>
  52 #include <unistd.h>
  53 #include <ctime>
  54
  55 #include <string>
  56 #include <iostream>
  57
  58 using namespace std;
  59 using namespace memcache;
  60 using namespace libtest;
  61
  62 Framework *global_framework= NULL;
  63
  64 static test_return_t shutdown_servers(memcached_st *memc)
  65 {
  66   test_compare(memcached_server_count(memc), 1U);
  67
  68   // Disable a single server, just the first
  69   global_framework->servers().shutdown(0);
  70
  71   return TEST_SUCCESS;
  72 }
  73
  74 static test_return_t add_shutdown_servers(memcached_st *memc)
  75 {
  76   while (memcached_server_count(memc) < 2)
  77   {
  78     const char *argv[1]= { "add_shutdown_server" };
  79     in_port_t port= max_port() +1;
  80     test_true(global_framework->servers().start_socket_server("memcached", port, 1, argv));
  81     test_compare(MEMCACHED_SUCCESS, memcached_server_add(memc, "localhost", port));
  82   }
  83
  84   // Disable a single server, just the first
  85   global_framework->servers().shutdown(0);
  86
  87   return TEST_SUCCESS;
  88 }
  89
  90 static test_return_t restart_servers(memcached_st *)
  91 {
  92   // Restart the servers
  93   global_framework->servers().restart();
  94
  95   return TEST_SUCCESS;
  96 }
  97
  98 static test_return_t cull_TEST(memcached_st *memc)
  99 {
 100   uint32_t count= memcached_server_count(memc);
 101
 102   // Do not do this in your code, it is not supported.
 103   memc->servers[0].options.is_dead= true;
 104   memc->state.is_time_for_rebuild= true;
 105
 106   uint32_t new_count= memcached_server_count(memc);
 107   test_compare(count, new_count);
 108
 109   return TEST_SUCCESS;
 110 }
 111
 112 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST(memcached_st *memc)
 113 {
 114   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 115   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 116                    memcached_set(memc,
 117                                  test_literal_param("foo"),
 118                                  NULL, 0, time_t(0), uint32_t(0)),
 119                    memcached_last_error_message(memc));
 120
 121   /*
 122     Setting server_failure_counter==0 should not influence the timeout that we set above,
 123     since we check the timeout that is created by the failure before we check how many times
 124     a server has failed.
 125   */
 126   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 127                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 128
 129   return TEST_SUCCESS;
 130 }
 131
 132 static test_return_t MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST(memcached_st *memc)
 133 {
 134   test_compare_got(MEMCACHED_CONNECTION_FAILURE,
 135                    memcached_set(memc,
 136                                  test_literal_param("foo"),
 137                                  NULL, 0, time_t(0), uint32_t(0)),
 138                    memcached_last_error_message(memc));
 139
 140   /*
 141     Setting server_failure_counter==0 should not influence the timeout that we set above,
 142     since we check the timeout that is created by the failure before we check how many times
 143     a server has failed.
 144   */
 145   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED,
 146                memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0)));
 147
 148   global_framework->servers().restart();
 149
 150   memcached_return_t ret;
 151   do {
 152     sleep(3);
 153     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 154   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED);
 155
 156   test_compare_got(MEMCACHED_SUCCESS, ret, memcached_last_error_message(memc));
 157
 158   return TEST_SUCCESS;
 159 }
 160
 161 static test_return_t MEMCACHED_SERVER_MARKED_DEAD_TEST(memcached_st *memc)
 162 {
 163   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_RETRY_TIMEOUT, 30));
 164   test_compare(MEMCACHED_SUCCESS, memcached_behavior_set(memc, MEMCACHED_BEHAVIOR_AUTO_EJECT_HOSTS, true));
 165
 166   memcached_return_t ret;
 167   do {
 168     ret= memcached_set(memc,
 169                        test_literal_param("foo"),
 170                        NULL, 0, time_t(0), uint32_t(0));
 171   } while (ret == MEMCACHED_SUCCESS or ret == MEMCACHED_CONNECTION_FAILURE);
 172   test_compare(MEMCACHED_SERVER_TEMPORARILY_DISABLED, ret);
 173
 174   do {
 175     sleep(3);
 176     ret= memcached_set(memc, test_literal_param("foo"), NULL, 0, time_t(0), uint32_t(0));
 177   } while (ret == MEMCACHED_SERVER_TEMPORARILY_DISABLED or ret == MEMCACHED_SUCCESS);
 178
 179   test_compare_got(MEMCACHED_SERVER_MARKED_DEAD, ret, memcached_last_error_message(memc));
 180
 181   return TEST_SUCCESS;
 182 }
 183
 184 test_st cull_TESTS[] ={
 185   { "cull servers", true, (test_callback_fn*)cull_TEST },
 186   { 0, 0, 0 }
 187 };
 188
 189 test_st server_temporarily_disabled_TESTS[] ={
 190   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_TEST },
 191   { "memcached_set(MEMCACHED_SERVER_TEMPORARILY_DISABLED -> MEMCACHED_SUCCESS)", true, (test_callback_fn*)MEMCACHED_SERVER_TEMPORARILY_DISABLED_to_success_TEST },
 192   { 0, 0, 0 }
 193 };
 194
 195 test_st server_permanently_disabled_TESTS[] ={
 196   { "memcached_set(MEMCACHED_SERVER_MARKED_DEAD)", true, (test_callback_fn*)MEMCACHED_SERVER_MARKED_DEAD_TEST },
 197   { 0, 0, 0 }
 198 };
 199
 200 collection_st collection[] ={
 201   { "cull", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, cull_TESTS },
 202   { "server failed", (test_callback_fn*)shutdown_servers, (test_callback_fn*)restart_servers, server_temporarily_disabled_TESTS },
 203   { "server eject", (test_callback_fn*)add_shutdown_servers, (test_callback_fn*)restart_servers, server_permanently_disabled_TESTS },
 204   { 0, 0, 0, 0 }
 205 };
 206
 207 #define TEST_PORT_BASE MEMCACHED_DEFAULT_PORT +10
 208 #include "libmemcached_world.h"
 209
 210 void get_world(Framework *world)
 211 {
 212   world->servers().set_count(1);
 213
 214   world->collections= collection;
 215
 216   world->_create= (test_callback_create_fn*)world_create;
 217   world->_destroy= (test_callback_destroy_fn*)world_destroy;
 218
 219   world->item._startup= (test_callback_fn*)world_test_startup;
 220   world->item.set_pre((test_callback_fn*)world_pre_run);
 221   world->item.set_flush((test_callback_fn*)world_flush);
 222   world->item.set_post((test_callback_fn*)world_post_run);
 223   world->_on_error= (test_callback_error_fn*)world_on_error;
 224
 225   world->collection_startup= (test_callback_fn*)world_container_startup;
 226   world->collection_shutdown= (test_callback_fn*)world_container_shutdown;
 227
 228   world->set_runner(&defualt_libmemcached_runner);
 229
 230   global_framework= world;
 231 }