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+
+//=============================================================================
+/**
+ * @file Recursive_Condition_Test.cpp
+ *
+ * $Id$
+ *
+ * This test program validates the functionality of the
+ * ACE_Condition<ACE_Recursive_Thread_Mutex> template
+ * specialization.
+ *
+ *
+ * @author Stephen Howard <stephen.e.howard@lmco.com> and Douglas C. Schmidt <schmidt@cs.wustl.edu>
+ */
+//=============================================================================
+
+
+#include "test_config.h"
+#include "ace/OS_NS_unistd.h"
+#include "ace/OS_NS_sys_time.h"
+#include "ace/Event_Handler.h"
+#include "ace/Log_Msg.h"
+#include "ace/Thread_Manager.h"
+#include "ace/Timer_Heap.h"
+#include "ace/Timer_Queue_Adapters.h"
+
+
+
+#if defined (ACE_HAS_THREADS)
+
+typedef ACE_Thread_Timer_Queue_Adapter<ACE_Timer_Heap> Thread_Timer_Queue;
+
+class Test_Handler : public ACE_Event_Handler
+{
+public:
+ Test_Handler (void) : nr_expirations_ (0) {}
+ int nr_expirations (void) { return this->nr_expirations_; }
+
+ virtual int handle_timeout (const ACE_Time_Value &,
+ const void *arg)
+ {
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) Test_Handler::handle_timeout\n")));
+ ++this->nr_expirations_;
+
+ void *nc_arg = const_cast<void *> (arg);
+ Thread_Timer_Queue *timer_queue =
+ reinterpret_cast<Thread_Timer_Queue *> (nc_arg);
+
+ ACE_Time_Value timeout = ACE_OS::gettimeofday () + ACE_Time_Value (1, 0);
+
+ ACE_DEBUG ((LM_DEBUG,
+ ACE_TEXT ("(%t) scheduling new timer 1 sec from now\n")));
+ if (timer_queue->schedule (this, timer_queue, timeout) == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("schedule failed")));
+
+ return 0;
+ }
+
+private:
+ int nr_expirations_;
+};
+
+// These are for the basic functionality tests.
+ACE_SYNCH_RECURSIVE_MUTEX mutex_;
+ACE_Condition<ACE_SYNCH_RECURSIVE_MUTEX> condition_ (mutex_);
+// Test driver sets this to non-zero before spawning and to zero for
+// waiter.
+int protected_int = 0;
+
+static ACE_THR_FUNC_RETURN
+waiter (void *)
+{
+ if (mutex_.acquire () != 0)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("acquire")), 0);
+
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) waiting for cv signal...\n")));
+ if (condition_.wait () == 0)
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) woken up!!!\n")));
+ else
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"), ACE_TEXT ("wait")));
+
+ int const copy_int = protected_int; // Copy it in case it's erroneously changing
+ if (copy_int != 0)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) waiter found protected_int %d\n"),
+ copy_int));
+
+ if (mutex_.release () != 0)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"), ACE_TEXT ("release")));
+
+ return 0;
+}
+
+static int
+test_1 (void)
+{
+ protected_int = 1;
+ if (ACE_Thread_Manager::instance()->spawn (waiter) == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 1 spawn")),
+ 1);
+
+ ACE_OS::sleep (2);
+ if (mutex_.acquire () == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 1 mutex acquire")),
+ 1);
+
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) signaling condition...\n")));
+ protected_int = 0;
+ if (condition_.signal () == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 1 signal")));
+
+ if (mutex_.release () == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 1 release")));
+
+ ACE_Thread_Manager::instance ()->wait ();
+ return 0;
+}
+
+static int
+test_2 (void)
+{
+ protected_int = 1;
+ if (ACE_Thread_Manager::instance()->spawn (waiter) == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 2 spawn")),
+ 1);
+
+ ACE_OS::sleep (2);
+ if (mutex_.acquire () == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 2 mutex acquire")),
+ 1);
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) signaling condition...\n")));
+ if (condition_.signal () == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"), ACE_TEXT ("test 2 signal")));
+
+ // Wait to clear protected_int to be sure cv properly reacquires the
+ // mutex before returning control to caller.
+ ACE_OS::sleep(2);
+ protected_int = 0;
+ if (mutex_.release () == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 2 release")));
+
+ ACE_Thread_Manager::instance ()->wait ();
+ return 0;
+}
+
+static int
+test_3 (void)
+{
+ protected_int = 1;
+ if (ACE_Thread_Manager::instance()->spawn_n (4, waiter) == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("%p\n"),
+ ACE_TEXT ("test 3 spawn")), 1);
+
+ ACE_OS::sleep (2);
+ if (mutex_.acquire () == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 3 mutex acquire")),
+ 1);
+
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) broadcasting condition...\n")));
+ if (condition_.broadcast () == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 3 broadcast")));
+ protected_int = 0;
+ if (mutex_.release () == -1)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 3 release")));
+
+ ACE_Thread_Manager::instance ()->wait ();
+
+ return 0;
+}
+
+static int
+test_4 (void)
+{
+ const int recurse_count = 3;
+
+ protected_int = recurse_count;
+ if (ACE_Thread_Manager::instance()->spawn (waiter) == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("spawn")), 1);
+
+ ACE_OS::sleep (2);
+ int i;
+ for (i = 0; i < recurse_count; ++i)
+ if (mutex_.acquire () == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("pass %d, %p\n"),
+ i + 1,
+ ACE_TEXT ("recursive acquire")),
+ 1);
+
+ // Don't report a failure if the mutex doesn't offer a view of the
+ // recursion count.
+ int nesting_level = mutex_.get_nesting_level ();
+ if (!(nesting_level == -1 && errno == ENOTSUP) && nesting_level != i)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT("test 4 nesting level %d;")
+ ACE_TEXT (" should be %d\n"),
+ nesting_level, i),
+ 1);
+
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) signaling condition...\n")));
+ if (condition_.signal () == -1)
+ ACE_ERROR_RETURN ((LM_ERROR, ACE_TEXT ("(%t) %p\n"),
+ ACE_TEXT ("test 4 signal")),
+ 1);
+
+ for (i = 0; i < recurse_count; ++i)
+ {
+ // Only decrement - be sure all the waiting threads are not released
+ // before we release the mutex the correct number of times.
+ --protected_int;
+ mutex_.release ();
+ }
+
+ // The waiter thread will acquire the mutex as a result of the releases
+ // above... don't check the nesting level until waiter() has had a chance
+ // to wake up, acquire, and release the mutex.
+ ACE_Thread_Manager::instance ()->wait ();
+
+ nesting_level = mutex_.get_nesting_level ();
+ if (!(nesting_level == -1 && errno == ENOTSUP) && nesting_level != 0)
+ ACE_ERROR_RETURN ((LM_ERROR,
+ ACE_TEXT("(%t) nesting level %d; should be 0\n"),
+ nesting_level),
+ 1);
+
+ return 0;
+}
+#endif /* ACE_HAS_THREADS */
+
+int
+run_main (int, ACE_TCHAR *[])
+{
+ ACE_START_TEST (ACE_TEXT ("Recursive_Condition_Test"));
+
+#if defined (ACE_HAS_THREADS)
+ int status = 0;
+
+ /* Test 1 - Simple test */
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Test 1...\n")));
+ if (test_1 () != 0)
+ ++status;
+
+ /* Test #2 - Sleep 2 seconds before releasing mutex */
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Test 2...\n")));
+ if (test_2 () != 0)
+ ++status;
+
+ /* Test #3 - One main thread - 4 subthreads */
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Test 3...\n")));
+ if (test_3 () != 0)
+ ++status;
+
+ /* Test #4 - Multiple calls to mutex_.acquire and mutex_.release */
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Test 4...\n")));
+ if (test_4 () != 0)
+ ++status;
+
+ // Timer queue usage.
+ Thread_Timer_Queue timer_queue;
+ Test_Handler handler;
+ if (0 != timer_queue.activate ())
+ {
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"), ACE_TEXT ("activate")));
+ ++status;
+ }
+
+ ACE_Time_Value timeout =
+ ACE_OS::gettimeofday() + ACE_Time_Value (1, 0);
+
+ if (-1 == timer_queue.schedule (&handler, &timer_queue, timeout))
+ {
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("(%t) %p\n"), ACE_TEXT ("schedule")));
+ ++status;
+ }
+
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Starting to sleep\n")));
+ ACE_OS::sleep (10);
+ timer_queue.deactivate ();
+ timer_queue.wait ();
+ // Scheduling every second, waiting 10 seconds, should get at least 9
+ int expirations = handler.nr_expirations ();
+ ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Caught %d timer expirations\n"),
+ expirations));
+ if (expirations < 9)
+ ACE_ERROR ((LM_ERROR, ACE_TEXT ("Should have caught at least 9\n")));
+
+#else
+ ACE_ERROR ((LM_ERROR,
+ ACE_TEXT ("ACE doesn't support recursive condition variables on this platform\n")));
+#endif /* ACE_HAS_THREADS */
+ ACE_END_TEST;
+ return 0;
+}
+