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https://github.com/mollyim/webrtc.git
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82cbbcc179
While this is a fairly big CL, it's fairly straightforward. It replaces uses of TimeMs with webrtc::Timestamp, and additionally does some cleanup of DurationMs to webrtc::TimeDelta that are now easier to do. Bug: webrtc:15593 Change-Id: Id0e3edcba0533e0e8df3358b1778b6995c344243 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/326560 Reviewed-by: Florent Castelli <orphis@webrtc.org> Commit-Queue: Victor Boivie <boivie@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41138}
123 lines
3.9 KiB
C++
123 lines
3.9 KiB
C++
/*
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* Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef NET_DCSCTP_TIMER_FAKE_TIMEOUT_H_
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#define NET_DCSCTP_TIMER_FAKE_TIMEOUT_H_
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#include <cstdint>
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#include <functional>
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#include <limits>
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#include <memory>
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#include <utility>
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#include <vector>
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#include "absl/types/optional.h"
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#include "api/task_queue/task_queue_base.h"
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#include "api/units/timestamp.h"
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#include "net/dcsctp/public/timeout.h"
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#include "net/dcsctp/public/types.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/containers/flat_set.h"
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namespace dcsctp {
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// A timeout used in tests.
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class FakeTimeout : public Timeout {
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public:
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FakeTimeout(std::function<webrtc::Timestamp()> get_time,
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std::function<void(FakeTimeout*)> on_delete)
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: get_time_(std::move(get_time)), on_delete_(std::move(on_delete)) {}
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~FakeTimeout() override { on_delete_(this); }
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void Start(DurationMs duration_ms, TimeoutID timeout_id) override {
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RTC_DCHECK(expiry_.IsPlusInfinity());
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timeout_id_ = timeout_id;
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expiry_ = get_time_() + duration_ms.ToTimeDelta();
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}
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void Stop() override {
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RTC_DCHECK(!expiry_.IsPlusInfinity());
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expiry_ = webrtc::Timestamp::PlusInfinity();
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}
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bool EvaluateHasExpired(webrtc::Timestamp now) {
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if (now >= expiry_) {
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expiry_ = webrtc::Timestamp::PlusInfinity();
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return true;
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}
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return false;
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}
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TimeoutID timeout_id() const { return timeout_id_; }
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webrtc::Timestamp expiry() const { return expiry_; }
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private:
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const std::function<webrtc::Timestamp()> get_time_;
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const std::function<void(FakeTimeout*)> on_delete_;
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TimeoutID timeout_id_ = TimeoutID(0);
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webrtc::Timestamp expiry_ = webrtc::Timestamp::PlusInfinity();
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};
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class FakeTimeoutManager {
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public:
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// The `get_time` function must return the current time, relative to any
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// epoch.
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explicit FakeTimeoutManager(std::function<webrtc::Timestamp()> get_time)
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: get_time_(std::move(get_time)) {}
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std::unique_ptr<FakeTimeout> CreateTimeout() {
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auto timer = std::make_unique<FakeTimeout>(
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get_time_, [this](FakeTimeout* timer) { timers_.erase(timer); });
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timers_.insert(timer.get());
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return timer;
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}
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std::unique_ptr<FakeTimeout> CreateTimeout(
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webrtc::TaskQueueBase::DelayPrecision precision) {
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// FakeTimeout does not support implement |precision|.
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return CreateTimeout();
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}
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// NOTE: This can't return a vector, as calling EvaluateHasExpired requires
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// calling socket->HandleTimeout directly afterwards, as the owning Timer
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// still believes it's running, and it needs to be updated to set
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// Timer::is_running_ to false before you operate on the Timer or Timeout
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// again.
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absl::optional<TimeoutID> GetNextExpiredTimeout() {
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webrtc::Timestamp now = get_time_();
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std::vector<TimeoutID> expired_timers;
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for (auto& timer : timers_) {
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if (timer->EvaluateHasExpired(now)) {
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return timer->timeout_id();
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}
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}
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return absl::nullopt;
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}
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webrtc::TimeDelta GetTimeToNextTimeout() const {
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webrtc::Timestamp next_expiry = webrtc::Timestamp::PlusInfinity();
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for (const FakeTimeout* timer : timers_) {
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if (timer->expiry() < next_expiry) {
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next_expiry = timer->expiry();
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}
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}
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webrtc::Timestamp now = get_time_();
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return !next_expiry.IsPlusInfinity() && next_expiry >= now
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? next_expiry - now
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: webrtc::TimeDelta::PlusInfinity();
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}
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private:
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const std::function<webrtc::Timestamp()> get_time_;
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webrtc::flat_set<FakeTimeout*> timers_;
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};
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} // namespace dcsctp
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#endif // NET_DCSCTP_TIMER_FAKE_TIMEOUT_H_
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