mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 22:00:47 +01:00
d841ea6b58
If the repeated task stopped itself, the return value does not matter, therefore we don't have to check it. Bug: webrtc:10365 Change-Id: I4a2c7a40a287dd0a8099628e228e9c319409576b Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/127545 Commit-Queue: Sebastian Jansson <srte@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27121}
119 lines
3.5 KiB
C++
119 lines
3.5 KiB
C++
/*
|
|
* Copyright 2019 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/task_utils/repeating_task.h"
|
|
|
|
#include "rtc_base/logging.h"
|
|
#include "rtc_base/task_utils/to_queued_task.h"
|
|
#include "rtc_base/time_utils.h"
|
|
|
|
namespace webrtc {
|
|
namespace webrtc_repeating_task_impl {
|
|
RepeatingTaskBase::RepeatingTaskBase(TaskQueueBase* task_queue,
|
|
TimeDelta first_delay)
|
|
: task_queue_(task_queue),
|
|
next_run_time_(Timestamp::us(rtc::TimeMicros()) + first_delay) {}
|
|
|
|
RepeatingTaskBase::~RepeatingTaskBase() = default;
|
|
|
|
bool RepeatingTaskBase::Run() {
|
|
RTC_DCHECK_RUN_ON(task_queue_);
|
|
// Return true to tell the TaskQueue to destruct this object.
|
|
if (next_run_time_.IsPlusInfinity())
|
|
return true;
|
|
|
|
TimeDelta delay = RunClosure();
|
|
|
|
// The closure might have stopped this task, in which case we return true to
|
|
// destruct this object.
|
|
if (next_run_time_.IsPlusInfinity())
|
|
return true;
|
|
|
|
RTC_DCHECK(delay.IsFinite());
|
|
TimeDelta lost_time = Timestamp::us(rtc::TimeMicros()) - next_run_time_;
|
|
next_run_time_ += delay;
|
|
delay -= lost_time;
|
|
delay = std::max(delay, TimeDelta::Zero());
|
|
|
|
task_queue_->PostDelayedTask(absl::WrapUnique(this), delay.ms());
|
|
|
|
// Return false to tell the TaskQueue to not destruct this object since we
|
|
// have taken ownership with absl::WrapUnique.
|
|
return false;
|
|
}
|
|
|
|
void RepeatingTaskBase::Stop() {
|
|
RTC_DCHECK(next_run_time_.IsFinite());
|
|
next_run_time_ = Timestamp::PlusInfinity();
|
|
}
|
|
|
|
void RepeatingTaskBase::PostStop() {
|
|
if (task_queue_->IsCurrent()) {
|
|
RTC_DLOG(LS_INFO) << "Using PostStop() from the task queue running the "
|
|
"repeated task. Consider calling Stop() instead.";
|
|
}
|
|
task_queue_->PostTask(ToQueuedTask([this] {
|
|
RTC_DCHECK_RUN_ON(task_queue_);
|
|
Stop();
|
|
}));
|
|
}
|
|
|
|
} // namespace webrtc_repeating_task_impl
|
|
RepeatingTaskHandle::RepeatingTaskHandle() {
|
|
sequence_checker_.Detach();
|
|
}
|
|
RepeatingTaskHandle::~RepeatingTaskHandle() {
|
|
sequence_checker_.Detach();
|
|
}
|
|
|
|
RepeatingTaskHandle::RepeatingTaskHandle(RepeatingTaskHandle&& other)
|
|
: repeating_task_(other.repeating_task_) {
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
other.repeating_task_ = nullptr;
|
|
}
|
|
|
|
RepeatingTaskHandle& RepeatingTaskHandle::operator=(
|
|
RepeatingTaskHandle&& other) {
|
|
RTC_DCHECK_RUN_ON(&other.sequence_checker_);
|
|
{
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
repeating_task_ = other.repeating_task_;
|
|
}
|
|
other.repeating_task_ = nullptr;
|
|
return *this;
|
|
}
|
|
|
|
RepeatingTaskHandle::RepeatingTaskHandle(
|
|
webrtc_repeating_task_impl::RepeatingTaskBase* repeating_task)
|
|
: repeating_task_(repeating_task) {}
|
|
|
|
void RepeatingTaskHandle::Stop() {
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
if (repeating_task_) {
|
|
RTC_DCHECK_RUN_ON(repeating_task_->task_queue_);
|
|
repeating_task_->Stop();
|
|
repeating_task_ = nullptr;
|
|
}
|
|
}
|
|
|
|
void RepeatingTaskHandle::PostStop() {
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
if (repeating_task_) {
|
|
repeating_task_->PostStop();
|
|
repeating_task_ = nullptr;
|
|
}
|
|
}
|
|
|
|
bool RepeatingTaskHandle::Running() const {
|
|
RTC_DCHECK_RUN_ON(&sequence_checker_);
|
|
return repeating_task_ != nullptr;
|
|
}
|
|
|
|
} // namespace webrtc
|