git.m6w6.name Git - m6w6/libmemcached/blob - test/tests/memcached/util_pool_thread.cpp

   1 #include "test/lib/common.hpp"
   2
   3 #include "libmemcachedutil-1/pool.h"
   4 #include <cassert>
   5
   6 struct test_pool_context_st {
   7   volatile memcached_return_t rc;
   8   memcached_pool_st *pool;
   9   memcached_st *memc;
  10
  11   test_pool_context_st(memcached_pool_st *pool_arg, memcached_st *memc_arg)
  12   : rc(MEMCACHED_FAILURE)
  13   , pool(pool_arg)
  14   , memc(memc_arg)
  15   {
  16   }
  17 };
  18
  19 static void *connection_release(void *arg) {
  20   assert(arg != nullptr);
  21
  22   this_thread::sleep_for(200ms);
  23   auto res = static_cast<test_pool_context_st *>(arg);
  24   res->rc = memcached_pool_release(res->pool, res->memc);
  25
  26   pthread_exit(arg);
  27 }
  28
  29 TEST_CASE("memcached_util_pool_thread") {
  30   MemcachedPtr memc;
  31   auto pool = memcached_pool_create(*memc, 1, 1);
  32   REQUIRE(pool);
  33
  34   memcached_return_t rc;
  35   auto pool_memc = memcached_pool_fetch(pool, nullptr, &rc);
  36   REQUIRE(MEMCACHED_SUCCESS == rc);
  37   REQUIRE(pool_memc);
  38
  39   /*
  40     @note This comment was written to describe what was believed to be the original authors intent.
  41
  42     This portion of the test creates a thread that will wait until told to free a memcached_st
  43     that will be grabbed by the main thread.
  44
  45     It is believed that this tests whether or not we are handling ownership correctly.
  46   */
  47   pthread_t tid;
  48   test_pool_context_st item(pool, pool_memc);
  49
  50   REQUIRE(0 == pthread_create(&tid, nullptr, connection_release, &item));
  51
  52   memcached_st *pop_memc;
  53   do {
  54     struct timespec relative_time = {0, 0};
  55     pop_memc = memcached_pool_fetch(pool, &relative_time, &rc);
  56
  57     if (memcached_success(rc)) {
  58       break;
  59     }
  60
  61     if (memcached_failed(rc)) {
  62       REQUIRE_FALSE(pop_memc);
  63       REQUIRE(rc != MEMCACHED_TIMEOUT); // As long as relative_time is zero, MEMCACHED_TIMEOUT is invalid
  64     }
  65   } while (rc == MEMCACHED_NOTFOUND);
  66
  67   // Cleanup thread since we will exit once we test.
  68   REQUIRE(0 == pthread_join(tid, nullptr));
  69   REQUIRE(MEMCACHED_SUCCESS == rc);
  70   REQUIRE(pool_memc == pop_memc);
  71   REQUIRE(MEMCACHED_SUCCESS == memcached_pool_release(pool, pop_memc));
  72   REQUIRE(memcached_pool_destroy(pool) == *memc);
  73
  74 }