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- // Copyright (c) 2012 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 "net/quic/test_task_runner.h"
- #include <algorithm>
- #include <utility>
- #include "base/time/time.h"
- #include "net/third_party/quiche/src/quiche/quic/test_tools/mock_clock.h"
- #include "testing/gtest/include/gtest/gtest.h"
- namespace net::test {
- namespace {
- base::TimeTicks NowInTicks(const quic::MockClock& clock) {
- base::TimeTicks ticks;
- return ticks + base::Microseconds(
- (clock.Now() - quic::QuicTime::Zero()).ToMicroseconds());
- }
- } // namespace
- TestTaskRunner::TestTaskRunner(quic::MockClock* clock) : clock_(clock) {}
- TestTaskRunner::~TestTaskRunner() = default;
- bool TestTaskRunner::PostDelayedTask(const base::Location& from_here,
- base::OnceClosure task,
- base::TimeDelta delay) {
- EXPECT_GE(delay, base::TimeDelta());
- tasks_.emplace_back(from_here, std::move(task), NowInTicks(*clock_), delay,
- base::TestPendingTask::NESTABLE);
- return true;
- }
- bool TestTaskRunner::PostNonNestableDelayedTask(const base::Location& from_here,
- base::OnceClosure task,
- base::TimeDelta delay) {
- return PostDelayedTask(from_here, std::move(task), delay);
- }
- bool TestTaskRunner::RunsTasksInCurrentSequence() const {
- return true;
- }
- const std::vector<PostedTask>& TestTaskRunner::GetPostedTasks() const {
- return tasks_;
- }
- quic::QuicTime::Delta TestTaskRunner::NextPendingTaskDelay() {
- if (tasks_.empty())
- return quic::QuicTime::Delta::Infinite();
- auto next = FindNextTask();
- return quic::QuicTime::Delta::FromMicroseconds(
- (next->GetTimeToRun() - NowInTicks(*clock_)).InMicroseconds());
- }
- void TestTaskRunner::RunNextTask() {
- auto next = FindNextTask();
- DCHECK(next != tasks_.end());
- clock_->AdvanceTime(quic::QuicTime::Delta::FromMicroseconds(
- (next->GetTimeToRun() - NowInTicks(*clock_)).InMicroseconds()));
- PostedTask task = std::move(*next);
- tasks_.erase(next);
- std::move(task.task).Run();
- }
- void TestTaskRunner::FastForwardBy(quic::QuicTime::Delta delta) {
- DCHECK_GE(delta, quic::QuicTime::Delta::Zero());
- quic::QuicTime end_timestamp = clock_->Now() + delta;
- while (NextPendingTaskDelay() <= end_timestamp - clock_->Now()) {
- RunNextTask();
- }
- if (clock_->Now() != end_timestamp)
- clock_->AdvanceTime(end_timestamp - clock_->Now());
- while (NextPendingTaskDelay() <= quic::QuicTime::Delta::Zero()) {
- RunNextTask();
- }
- return;
- }
- void TestTaskRunner::RunUntilIdle() {
- while (!tasks_.empty())
- RunNextTask();
- }
- namespace {
- struct ShouldRunBeforeLessThan {
- bool operator()(const PostedTask& task1, const PostedTask& task2) const {
- return task1.ShouldRunBefore(task2);
- }
- };
- } // namespace
- std::vector<PostedTask>::iterator TestTaskRunner::FindNextTask() {
- return std::min_element(tasks_.begin(), tasks_.end(),
- ShouldRunBeforeLessThan());
- }
- } // namespace net::test
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