text: /* Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include "apr_thread_proc.h"
  #include "apr_errno.h"
  #include "apr_general.h"
  #include "errno.h"
  #include "apr_time.h"
  #include "test_apr.h"
  
  #if APR_HAS_THREADS
  
  static apr_thread_mutex_t *thread_lock;
  static apr_thread_once_t *control = NULL;
  static int x = 0;
  static int value = 0;
  
  static apr_thread_t *t1;
  static apr_thread_t *t2;
  static apr_thread_t *t3;
  static apr_thread_t *t4;
  
  /* just some made up number to check on later */
  static apr_status_t exit_ret_val = 123;
  
  static void init_func(void)
  {
      value++;
  }
  
  static void * APR_THREAD_FUNC thread_func1(apr_thread_t *thd, void *data)
  {
      int i;
  
      apr_thread_once(control, init_func);
  
      for (i = 0; i < 10000; i++) {
          apr_thread_mutex_lock(thread_lock);
          x++;
          apr_thread_mutex_unlock(thread_lock);
      }
      apr_thread_exit(thd, exit_ret_val);
      return NULL;
  } 
  
  static void thread_init(CuTest *tc)
  {
      apr_status_t rv;
  
      rv = apr_thread_once_init(&control, p);
      CuAssertIntEquals(tc, APR_SUCCESS, rv);
  
      rv = apr_thread_mutex_create(&thread_lock, APR_THREAD_MUTEX_DEFAULT, p); 
      CuAssertIntEquals(tc, APR_SUCCESS, rv);
  }
  
  static void create_threads(CuTest *tc)
  {
      apr_status_t rv;
  
      rv = apr_thread_create(&t1, NULL, thread_func1, NULL, p);
      CuAssertIntEquals(tc, APR_SUCCESS, rv);
      rv = apr_thread_create(&t2, NULL, thread_func1, NULL, p);
      CuAssertIntEquals(tc, APR_SUCCESS, rv);
      rv = apr_thread_create(&t3, NULL, thread_func1, NULL, p);
      CuAssertIntEquals(tc, APR_SUCCESS, rv);
      rv = apr_thread_create(&t4, NULL, thread_func1, NULL, p);
      CuAssertIntEquals(tc, APR_SUCCESS, rv);
  }
  
  static void join_threads(CuTest *tc)
  {
      apr_status_t s;
  
      apr_thread_join(&s, t1);
      CuAssertIntEquals(tc, exit_ret_val, s);
      apr_thread_join(&s, t2);
      CuAssertIntEquals(tc, exit_ret_val, s);
      apr_thread_join(&s, t3);
      CuAssertIntEquals(tc, exit_ret_val, s);
      apr_thread_join(&s, t4);
      CuAssertIntEquals(tc, exit_ret_val, s);
  }
  
  static void check_locks(CuTest *tc)
  {
      CuAssertIntEquals(tc, 40000, x);
  }
  
  static void check_thread_once(CuTest *tc)
  {
      CuAssertIntEquals(tc, 1, value);
  }
  
  #else
  
  static void threads_not_impl(CuTest *tc)
  {
      CuNotImpl(tc, "Threads not implemented on this platform");
  }
  
  #endif
  
  CuSuite *testthread(void)
  {
      CuSuite *suite = CuSuiteNew("Threads");
  
  #if !APR_HAS_THREADS
      SUITE_ADD_TEST(suite, threads_not_impl);
  #else
      SUITE_ADD_TEST(suite, thread_init);
      SUITE_ADD_TEST(suite, create_threads);
      SUITE_ADD_TEST(suite, join_threads);
      SUITE_ADD_TEST(suite, check_locks);
      SUITE_ADD_TEST(suite, check_thread_once);
  #endif
  
      return suite;
  }
  
  