blob: 9636680cb4f0152021202b28ab44e4426457ea9a [file] [log] [blame]
* 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 "absl/memory/memory.h"
#include "rtc_base/logging.h"
#include "rtc_base/task_utils/pending_task_safety_flag.h"
#include "rtc_base/task_utils/to_queued_task.h"
#include "rtc_base/time_utils.h"
namespace webrtc {
namespace webrtc_repeating_task_impl {
TaskQueueBase* task_queue,
TimeDelta first_delay,
Clock* clock,
rtc::scoped_refptr<PendingTaskSafetyFlag> alive_flag)
: task_queue_(task_queue),
next_run_time_(clock_->CurrentTime() + first_delay),
alive_flag_(std::move(alive_flag)) {}
RepeatingTaskBase::~RepeatingTaskBase() = default;
bool RepeatingTaskBase::Run() {
// Return true to tell the TaskQueue to destruct this object.
if (!alive_flag_->alive())
return true;
TimeDelta delay = RunClosure();
// The closure might have stopped this task, in which case we return true to
// destruct this object.
if (!alive_flag_->alive())
return true;
TimeDelta lost_time = clock_->CurrentTime() - next_run_time_;
next_run_time_ += delay;
delay -= lost_time;
delay = std::max(delay, TimeDelta::Zero());
// Return false to tell the TaskQueue to not destruct this object since we
// have taken ownership with absl::WrapUnique.
return false;
} // namespace webrtc_repeating_task_impl
void RepeatingTaskHandle::Stop() {
if (repeating_task_) {
repeating_task_ = nullptr;
bool RepeatingTaskHandle::Running() const {
return repeating_task_ != nullptr;
} // namespace webrtc