109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/synchronization/waitable_event.h"
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#include "base/compiler_specific.h"
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#include "base/threading/platform_thread.h"
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#include "base/time/time.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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TEST(WaitableEventTest, ManualBasics) {
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WaitableEvent event(true, false);
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EXPECT_FALSE(event.IsSignaled());
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event.Signal();
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EXPECT_TRUE(event.IsSignaled());
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EXPECT_TRUE(event.IsSignaled());
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event.Reset();
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EXPECT_FALSE(event.IsSignaled());
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EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
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event.Signal();
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event.Wait();
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EXPECT_TRUE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
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}
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TEST(WaitableEventTest, AutoBasics) {
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WaitableEvent event(false, false);
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EXPECT_FALSE(event.IsSignaled());
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event.Signal();
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EXPECT_TRUE(event.IsSignaled());
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EXPECT_FALSE(event.IsSignaled());
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event.Reset();
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EXPECT_FALSE(event.IsSignaled());
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EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
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event.Signal();
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event.Wait();
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EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
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event.Signal();
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EXPECT_TRUE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
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}
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TEST(WaitableEventTest, WaitManyShortcut) {
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WaitableEvent* ev[5];
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for (unsigned i = 0; i < 5; ++i)
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ev[i] = new WaitableEvent(false, false);
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ev[3]->Signal();
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EXPECT_EQ(WaitableEvent::WaitMany(ev, 5), 3u);
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ev[3]->Signal();
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EXPECT_EQ(WaitableEvent::WaitMany(ev, 5), 3u);
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ev[4]->Signal();
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EXPECT_EQ(WaitableEvent::WaitMany(ev, 5), 4u);
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ev[0]->Signal();
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EXPECT_EQ(WaitableEvent::WaitMany(ev, 5), 0u);
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for (unsigned i = 0; i < 5; ++i)
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delete ev[i];
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}
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class WaitableEventSignaler : public PlatformThread::Delegate {
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public:
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WaitableEventSignaler(double seconds, WaitableEvent* ev)
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: seconds_(seconds),
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ev_(ev) {
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}
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virtual void ThreadMain() OVERRIDE {
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PlatformThread::Sleep(TimeDelta::FromSeconds(static_cast<int>(seconds_)));
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ev_->Signal();
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}
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private:
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const double seconds_;
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WaitableEvent *const ev_;
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};
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TEST(WaitableEventTest, WaitMany) {
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WaitableEvent* ev[5];
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for (unsigned i = 0; i < 5; ++i)
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ev[i] = new WaitableEvent(false, false);
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WaitableEventSignaler signaler(0.1, ev[2]);
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PlatformThreadHandle thread;
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PlatformThread::Create(0, &signaler, &thread);
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EXPECT_EQ(WaitableEvent::WaitMany(ev, 5), 2u);
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PlatformThread::Join(thread);
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for (unsigned i = 0; i < 5; ++i)
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delete ev[i];
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}
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} // namespace base
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