ager@google.com
f12f701869
The monitor wake-up delay is occasionally a bit more than 120 ms on Windows. Example flake: http://build.chromium.org/p/client.dart/builders/vm-win32-release/builds/2353/steps/tests/logs/stdio R=sgjesse@google.com,iposva@google.com BUG= TEST= Review URL: https://chromiumcodereview.appspot.com//10139029 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@6836 260f80e4-7a28-3924-810f-c04153c831b5
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "platform/assert.h"
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#include "vm/isolate.h"
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#include "vm/unit_test.h"
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#include "vm/thread.h"
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namespace dart {
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UNIT_TEST_CASE(Mutex) {
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// This unit test case needs a running isolate.
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Isolate* isolate = Isolate::Init(NULL);
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Mutex* mutex = new Mutex();
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mutex->Lock();
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EXPECT_EQ(false, mutex->TryLock());
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mutex->Unlock();
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EXPECT_EQ(true, mutex->TryLock());
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mutex->Unlock();
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{
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MutexLocker ml(mutex);
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EXPECT_EQ(false, mutex->TryLock());
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}
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// The isolate shutdown and the destruction of the mutex are out-of-order on
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// purpose.
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isolate->Shutdown();
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delete isolate;
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delete mutex;
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}
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UNIT_TEST_CASE(Monitor) {
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// This unit test case needs a running isolate.
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Isolate* isolate = Isolate::Init(NULL);
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Monitor* monitor = new Monitor();
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monitor->Enter();
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monitor->Exit();
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{
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MonitorLocker ml(monitor);
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int64_t start = OS::GetCurrentTimeMillis();
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int64_t wait_time = 2017;
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Monitor::WaitResult wait_result = ml.Wait(wait_time);
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int64_t stop = OS::GetCurrentTimeMillis();
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EXPECT_EQ(Monitor::kTimedOut, wait_result);
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const int kAcceptableTimeJitter = 20; // Measured in milliseconds.
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EXPECT_LE(wait_time - kAcceptableTimeJitter, stop - start);
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const int kAcceptableWakeupDelay = 150; // Measured in milliseconds.
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EXPECT_GE(wait_time + kAcceptableWakeupDelay, stop - start);
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}
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// The isolate shutdown and the destruction of the mutex are out-of-order on
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// purpose.
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isolate->Shutdown();
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delete isolate;
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delete monitor;
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}
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} // namespace dart
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