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/*
* Copyright 2004 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/event.h"
#include "rtc_base/gunit.h"
#include "rtc_base/platform_thread.h"
namespace rtc {
TEST(EventTest, InitiallySignaled) {
Event event(false, true);
ASSERT_TRUE(event.Wait(0));
}
TEST(EventTest, ManualReset) {
Event event(true, false);
ASSERT_FALSE(event.Wait(0));
event.Set();
ASSERT_TRUE(event.Wait(0));
ASSERT_TRUE(event.Wait(0));
event.Reset();
ASSERT_FALSE(event.Wait(0));
}
TEST(EventTest, AutoReset) {
Event event(false, false);
ASSERT_FALSE(event.Wait(0));
event.Set();
ASSERT_TRUE(event.Wait(0));
ASSERT_FALSE(event.Wait(0));
}
class SignalerThread {
public:
SignalerThread() : thread_(&ThreadFn, this, "EventPerf") {}
void Start(Event* writer, Event* reader) {
writer_ = writer;
reader_ = reader;
thread_.Start();
}
void Stop() {
stop_event_.Set();
thread_.Stop();
}
static void ThreadFn(void *param) {
auto* me = static_cast<SignalerThread*>(param);
while(!me->stop_event_.Wait(0)) {
me->writer_->Set();
me->reader_->Wait(Event::kForever);
}
}
Event stop_event_{false, false};
Event* writer_;
Event* reader_;
PlatformThread thread_;
};
// These tests are disabled by default and only intended to be run manually.
TEST(EventTest, DISABLED_PerformanceSingleThread) {
static const int kNumIterations = 10000000;
Event event(false, false);
for (int i = 0; i < kNumIterations; ++i) {
event.Set();
event.Wait(0);
}
}
TEST(EventTest, DISABLED_PerformanceMultiThread) {
static const int kNumIterations = 10000;
Event read(false, false);
Event write(false, false);
SignalerThread thread;
thread.Start(&read, &write);
for (int i = 0; i < kNumIterations; ++i) {
write.Set();
read.Wait(Event::kForever);
}
write.Set();
thread.Stop();
}
} // namespace rtc
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