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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdint.h>
#include <string>
#include <utility>
#include "base/auto_reset.h"
#include "base/bind.h"
#include "base/macros.h"
#include "base/memory/scoped_vector.h"
#include "base/run_loop.h"
#include "base/time/time.h"
#include "mojo/message_pump/handle_watcher.h"
#include "mojo/message_pump/message_pump_mojo.h"
#include "mojo/public/cpp/test_support/test_support.h"
#include "mojo/public/cpp/test_support/test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace mojo {
namespace common {
namespace test {
enum MessageLoopConfig {
MESSAGE_LOOP_CONFIG_DEFAULT = 0,
MESSAGE_LOOP_CONFIG_MOJO = 1
};
scoped_ptr<base::MessageLoop> CreateMessageLoop(MessageLoopConfig config) {
scoped_ptr<base::MessageLoop> loop;
if (config == MESSAGE_LOOP_CONFIG_DEFAULT)
loop.reset(new base::MessageLoop());
else
loop.reset(new base::MessageLoop(MessagePumpMojo::Create()));
return loop;
}
void OnWatcherSignaled(const base::Closure& callback, MojoResult /* result */) {
callback.Run();
}
class ScopedPerfTimer {
public:
ScopedPerfTimer(const std::string& test_name,
const std::string& sub_test_name,
uint64_t iterations)
: test_name_(test_name),
sub_test_name_(sub_test_name),
iterations_(iterations),
start_time_(base::TimeTicks::Now()) {}
~ScopedPerfTimer() {
base::TimeTicks end_time = base::TimeTicks::Now();
mojo::test::LogPerfResult(
test_name_.c_str(), sub_test_name_.c_str(),
iterations_ / (end_time - start_time_).InSecondsF(),
"iterations/second");
}
private:
const std::string test_name_;
const std::string sub_test_name_;
const uint64_t iterations_;
base::TimeTicks start_time_;
DISALLOW_COPY_AND_ASSIGN(ScopedPerfTimer);
};
class HandleWatcherPerftest : public testing::TestWithParam<MessageLoopConfig> {
public:
HandleWatcherPerftest() : message_loop_(CreateMessageLoop(GetParam())) {}
protected:
std::string GetMessageLoopName() const {
return (GetParam() == MESSAGE_LOOP_CONFIG_DEFAULT) ? "DefaultMessageLoop"
: "MojoMessageLoop";
}
private:
scoped_ptr<base::MessageLoop> message_loop_;
DISALLOW_COPY_AND_ASSIGN(HandleWatcherPerftest);
};
INSTANTIATE_TEST_CASE_P(MultipleMessageLoopConfigs,
HandleWatcherPerftest,
testing::Values(MESSAGE_LOOP_CONFIG_DEFAULT,
MESSAGE_LOOP_CONFIG_MOJO));
void NeverReached(MojoResult result) {
FAIL() << "Callback should never be invoked " << result;
}
TEST_P(HandleWatcherPerftest, StartStop) {
const uint64_t kIterations = 100000;
MessagePipe pipe;
HandleWatcher watcher;
ScopedPerfTimer timer("StartStop", GetMessageLoopName(), kIterations);
for (uint64_t i = 0; i < kIterations; i++) {
watcher.Start(pipe.handle0.get(), MOJO_HANDLE_SIGNAL_READABLE,
MOJO_DEADLINE_INDEFINITE, base::Bind(&NeverReached));
watcher.Stop();
}
}
TEST_P(HandleWatcherPerftest, StartAllThenStop_1000Handles) {
const uint64_t kIterations = 100;
const uint64_t kHandles = 1000;
struct TestData {
MessagePipe pipe;
HandleWatcher watcher;
};
ScopedVector<TestData> data_vector;
// Create separately from the start/stop loops to avoid affecting the
// benchmark.
for (uint64_t i = 0; i < kHandles; i++) {
scoped_ptr<TestData> test_data(new TestData);
ASSERT_TRUE(test_data->pipe.handle0.is_valid());
data_vector.push_back(std::move(test_data));
}
ScopedPerfTimer timer("StartAllThenStop_1000Handles", GetMessageLoopName(),
kIterations * kHandles);
for (uint64_t iter = 0; iter < kIterations; iter++) {
for (uint64_t i = 0; i < kHandles; i++) {
TestData* test_data = data_vector[i];
test_data->watcher.Start(
test_data->pipe.handle0.get(), MOJO_HANDLE_SIGNAL_READABLE,
MOJO_DEADLINE_INDEFINITE, base::Bind(&NeverReached));
}
for (uint64_t i = 0; i < kHandles; i++) {
TestData* test_data = data_vector[i];
test_data->watcher.Stop();
}
}
}
TEST_P(HandleWatcherPerftest, StartAndSignal) {
const uint64_t kIterations = 10000;
const std::string kMessage = "hello";
MessagePipe pipe;
HandleWatcher watcher;
std::string received_message;
ScopedPerfTimer timer("StartAndSignal", GetMessageLoopName(), kIterations);
for (uint64_t i = 0; i < kIterations; i++) {
base::RunLoop run_loop;
watcher.Start(pipe.handle0.get(), MOJO_HANDLE_SIGNAL_READABLE,
MOJO_DEADLINE_INDEFINITE,
base::Bind(&OnWatcherSignaled, run_loop.QuitClosure()));
ASSERT_TRUE(mojo::test::WriteTextMessage(pipe.handle1.get(), kMessage));
run_loop.Run();
watcher.Stop();
ASSERT_TRUE(
mojo::test::ReadTextMessage(pipe.handle0.get(), &received_message));
EXPECT_EQ(kMessage, received_message);
received_message.clear();
}
}
TEST_P(HandleWatcherPerftest, StartAndSignal_1000Waiting) {
const uint64_t kIterations = 10000;
const uint64_t kWaitingHandles = 1000;
const std::string kMessage = "hello";
MessagePipe pipe;
HandleWatcher watcher;
std::string received_message;
struct TestData {
MessagePipe pipe;
HandleWatcher watcher;
};
ScopedVector<TestData> data_vector;
for (uint64_t i = 0; i < kWaitingHandles; i++) {
scoped_ptr<TestData> test_data(new TestData);
ASSERT_TRUE(test_data->pipe.handle0.is_valid());
test_data->watcher.Start(
test_data->pipe.handle0.get(), MOJO_HANDLE_SIGNAL_READABLE,
MOJO_DEADLINE_INDEFINITE, base::Bind(&NeverReached));
data_vector.push_back(std::move(test_data));
}
ScopedPerfTimer timer("StartAndSignal_1000Waiting", GetMessageLoopName(),
kIterations);
for (uint64_t i = 0; i < kIterations; i++) {
base::RunLoop run_loop;
watcher.Start(pipe.handle0.get(), MOJO_HANDLE_SIGNAL_READABLE,
MOJO_DEADLINE_INDEFINITE,
base::Bind(&OnWatcherSignaled, run_loop.QuitClosure()));
ASSERT_TRUE(mojo::test::WriteTextMessage(pipe.handle1.get(), kMessage));
run_loop.Run();
watcher.Stop();
ASSERT_TRUE(
mojo::test::ReadTextMessage(pipe.handle0.get(), &received_message));
EXPECT_EQ(kMessage, received_message);
received_message.clear();
}
}
} // namespace test
} // namespace common
} // namespace mojo
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