blob: 469edaf25833d65af85f1450893d33e58656b15f [file] [log] [blame]
// Copyright 2013 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 "base/callback_forward.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/task_runner.h"
#include "base/threading/thread.h"
#include "base/time/time.h"
namespace tracked_objects {
class Location;
namespace mojo {
namespace system {
namespace test {
class Stopwatch {
Stopwatch() {}
~Stopwatch() {}
void Start() {
start_time_ = base::TimeTicks::HighResNow();
int64_t Elapsed() {
return (base::TimeTicks::HighResNow() - start_time_).InMicroseconds();
base::TimeTicks start_time_;
// Posts the given task (to the given task runner) and waits for it to complete.
// (Note: Doesn't spin the current thread's message loop, so if you're careless
// this could easily deadlock.)
void PostTaskAndWait(scoped_refptr<base::TaskRunner> task_runner,
const tracked_objects::Location& from_here,
const base::Closure& task);
// TestIOThread ----------------------------------------------------------------
class TestIOThread {
enum Mode { kAutoStart, kManualStart };
explicit TestIOThread(Mode mode);
// Stops the I/O thread if necessary.
// |Start()|/|Stop()| should only be called from the main (creation) thread.
// After |Stop()|, |Start()| may be called again to start a new I/O thread.
// |Stop()| may be called even when the I/O thread is not started.
void Start();
void Stop();
void PostTask(const tracked_objects::Location& from_here,
const base::Closure& task);
void PostTaskAndWait(const tracked_objects::Location& from_here,
const base::Closure& task);
base::MessageLoopForIO* message_loop() {
return static_cast<base::MessageLoopForIO*>(io_thread_.message_loop());
scoped_refptr<base::TaskRunner> task_runner() {
return message_loop()->message_loop_proxy();
base::Thread io_thread_;
bool io_thread_started_;
} // namespace test
} // namespace system
} // namespace mojo