| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "platform/assert.h" |
| #include "vm/isolate.h" |
| #include "vm/unit_test.h" |
| #include "vm/thread.h" |
| |
| namespace dart { |
| |
| UNIT_TEST_CASE(Mutex) { |
| // This unit test case needs a running isolate. |
| Isolate* isolate = Isolate::Init(NULL); |
| |
| Mutex* mutex = new Mutex(); |
| mutex->Lock(); |
| EXPECT_EQ(false, mutex->TryLock()); |
| mutex->Unlock(); |
| EXPECT_EQ(true, mutex->TryLock()); |
| mutex->Unlock(); |
| { |
| MutexLocker ml(mutex); |
| EXPECT_EQ(false, mutex->TryLock()); |
| } |
| // The isolate shutdown and the destruction of the mutex are out-of-order on |
| // purpose. |
| isolate->Shutdown(); |
| delete isolate; |
| delete mutex; |
| } |
| |
| |
| UNIT_TEST_CASE(Monitor) { |
| // This unit test case needs a running isolate. |
| Isolate* isolate = Isolate::Init(NULL); |
| |
| Monitor* monitor = new Monitor(); |
| monitor->Enter(); |
| monitor->Exit(); |
| |
| const int kNumAttempts = 5; |
| int attempts = 0; |
| while (attempts < kNumAttempts) { |
| MonitorLocker ml(monitor); |
| int64_t start = OS::GetCurrentTimeMillis(); |
| int64_t wait_time = 2017; |
| Monitor::WaitResult wait_result = ml.Wait(wait_time); |
| int64_t stop = OS::GetCurrentTimeMillis(); |
| |
| // We expect to be timing out here. |
| EXPECT_EQ(Monitor::kTimedOut, wait_result); |
| |
| // Check whether this attempt falls within the exptected time limits. |
| int64_t wakeup_time = stop - start; |
| OS::Print("wakeup_time: %"Pd64"\n", wakeup_time); |
| const int kAcceptableTimeJitter = 20; // Measured in milliseconds. |
| const int kAcceptableWakeupDelay = 150; // Measured in milliseconds. |
| if (((wait_time - kAcceptableTimeJitter) <= wakeup_time) && |
| (wakeup_time <= (wait_time + kAcceptableWakeupDelay))) { |
| break; |
| } |
| |
| // Record the attempt. |
| attempts++; |
| } |
| EXPECT_LT(attempts, kNumAttempts); |
| |
| // The isolate shutdown and the destruction of the mutex are out-of-order on |
| // purpose. |
| isolate->Shutdown(); |
| delete isolate; |
| delete monitor; |
| } |
| |
| } // namespace dart |