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/*
* Copyright (c) 2012 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_tracer.h"
#include "rtc_base/synchronization/mutex.h"
#include "rtc_base/thread_annotations.h"
#include "rtc_base/trace_event.h"
#include "test/gtest.h"
namespace {
class TestStatistics {
public:
void Reset() {
webrtc::MutexLock lock(&mutex_);
events_logged_ = 0;
}
void Increment() {
webrtc::MutexLock lock(&mutex_);
++events_logged_;
}
int Count() const {
webrtc::MutexLock lock(&mutex_);
return events_logged_;
}
static TestStatistics* Get() {
// google.github.io/styleguide/cppguide.html#Static_and_Global_Variables
static auto& test_stats = *new TestStatistics();
return &test_stats;
}
private:
mutable webrtc::Mutex mutex_;
int events_logged_ RTC_GUARDED_BY(mutex_) = 0;
};
} // namespace
namespace webrtc {
TEST(EventTracerTest, EventTracerDisabled) {
{ TRACE_EVENT0("test", "EventTracerDisabled"); }
EXPECT_FALSE(TestStatistics::Get()->Count());
TestStatistics::Get()->Reset();
}
#if RTC_TRACE_EVENTS_ENABLED
TEST(EventTracerTest, ScopedTraceEvent) {
SetupEventTracer(
[](const char* /*name*/) {
return reinterpret_cast<const unsigned char*>("test");
},
[](char /*phase*/,
const unsigned char* /*category_enabled*/,
const char* /*name*/,
unsigned long long /*id*/,
int /*num_args*/,
const char** /*arg_names*/,
const unsigned char* /*arg_types*/,
const unsigned long long* /*arg_values*/,
unsigned char /*flags*/) {
TestStatistics::Get()->Increment();
});
{ TRACE_EVENT0("test", "ScopedTraceEvent"); }
EXPECT_EQ(2, TestStatistics::Get()->Count());
TestStatistics::Get()->Reset();
}
#endif
} // namespace webrtc
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