1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/message_loop/message_loop_task_runner.h" 6 7 #include <utility> 8 9 #include "base/location.h" 10 #include "base/logging.h" 11 #include "base/message_loop/incoming_task_queue.h" 12 13 namespace base { 14 namespace internal { 15 16 MessageLoopTaskRunner::MessageLoopTaskRunner( 17 scoped_refptr<IncomingTaskQueue> incoming_queue) 18 : incoming_queue_(incoming_queue), valid_thread_id_(kInvalidThreadId) { 19 } 20 21 void MessageLoopTaskRunner::BindToCurrentThread() { 22 AutoLock lock(valid_thread_id_lock_); 23 DCHECK_EQ(kInvalidThreadId, valid_thread_id_); 24 valid_thread_id_ = PlatformThread::CurrentId(); 25 } 26 27 bool MessageLoopTaskRunner::PostDelayedTask(const Location& from_here, 28 OnceClosure task, 29 base::TimeDelta delay) { 30 DCHECK(!task.is_null()) << from_here.ToString(); 31 return incoming_queue_->AddToIncomingQueue(from_here, std::move(task), delay, 32 Nestable::kNestable); 33 } 34 35 bool MessageLoopTaskRunner::PostNonNestableDelayedTask( 36 const Location& from_here, 37 OnceClosure task, 38 base::TimeDelta delay) { 39 DCHECK(!task.is_null()) << from_here.ToString(); 40 return incoming_queue_->AddToIncomingQueue(from_here, std::move(task), delay, 41 Nestable::kNonNestable); 42 } 43 44 bool MessageLoopTaskRunner::RunsTasksInCurrentSequence() const { 45 AutoLock lock(valid_thread_id_lock_); 46 return valid_thread_id_ == PlatformThread::CurrentId(); 47 } 48 49 MessageLoopTaskRunner::~MessageLoopTaskRunner() = default; 50 51 } // namespace internal 52 53 } // namespace base 54
