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// Copyright 2015 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 "components/scheduler/renderer/deadline_task_runner.h"
#include "base/bind.h"
namespace scheduler {
DeadlineTaskRunner::DeadlineTaskRunner(
const base::Closure& callback,
scoped_refptr<base::SingleThreadTaskRunner> task_runner)
: callback_(callback), task_runner_(task_runner) {
cancelable_run_internal_.Reset(
base::Bind(&DeadlineTaskRunner::RunInternal, base::Unretained(this)));
}
DeadlineTaskRunner::~DeadlineTaskRunner() {
}
void DeadlineTaskRunner::SetDeadline(const tracked_objects::Location& from_here,
base::TimeDelta delay,
base::TimeTicks now) {
DCHECK(delay > base::TimeDelta());
base::TimeTicks deadline = now + delay;
if (deadline_.is_null() || deadline < deadline_) {
deadline_ = deadline;
cancelable_run_internal_.Cancel();
task_runner_->PostDelayedTask(from_here,
cancelable_run_internal_.callback(), delay);
}
}
void DeadlineTaskRunner::RunInternal() {
deadline_ = base::TimeTicks();
callback_.Run();
}
} // namespace scheduler
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