| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include "base/message_loop/message_loop.h" |
| #include "base/thread/thread_local.h" |
| #ifdef __ANDROID__ |
| #include "base/message_loop/message_pump_android.h" |
| #elif OS_IOS |
| #include "base/message_loop/message_pump_darwin.h" |
| #endif |
| #include "base/message_loop/message_pump_posix.h" |
| |
| namespace weex { |
| namespace base { |
| |
| ThreadLocal<MessageLoop> s_tl_message_loop; |
| |
| MessageLoop::MessageLoop(Type type) |
| : delayed_tasks_(), type_(type), delayed_tasks_mutex_() { |
| switch (type) { |
| case PLATFORM: |
| #ifdef __ANDROID__ |
| message_pump_ = std::unique_ptr<MessagePump>(new MessagePumpAndroid()); |
| #elif OS_IOS |
| message_pump_ = std::unique_ptr<MessagePump>(new MessagePumpDarwin()); |
| #endif |
| break; |
| case DEFAULT: |
| message_pump_ = std::unique_ptr<MessagePump>(new MessagePumpPosix()); |
| break; |
| case IO: |
| break; |
| } |
| } |
| MessageLoop::~MessageLoop() {} |
| |
| MessageLoop* MessageLoop::GetCurrent() { return s_tl_message_loop.Get(); } |
| |
| void MessageLoop::Run() { |
| // Store in thread local stack |
| s_tl_message_loop.Set(this); |
| message_pump_->Run(this); |
| } |
| |
| void MessageLoop::Stop() { message_pump_->Stop(); } |
| |
| void MessageLoop::DoWork() { |
| std::vector<Closure> closure_list; |
| { |
| std::lock_guard<std::mutex> lock(delayed_tasks_mutex_); |
| |
| if (delayed_tasks_.empty()) { |
| return; |
| } |
| |
| auto now = TimePoint::Now(); |
| while (!delayed_tasks_.empty()) { |
| const auto& top = delayed_tasks_.top(); |
| if (top.time_point > now) { |
| break; |
| } |
| closure_list.emplace_back(std::move(top.task)); |
| delayed_tasks_.pop(); |
| } |
| |
| if (!delayed_tasks_.empty()) { |
| message_pump_->ScheduleDelayedWork(delayed_tasks_.top().time_point - now); |
| } |
| } |
| |
| for (const auto& closure : closure_list) { |
| closure(); |
| } |
| } |
| |
| void MessageLoop::PostTask(const Closure& closure) { |
| PostDelayedTask(closure, 0); |
| } |
| |
| void MessageLoop::PostPriorityTask(TaskPriority p, const Closure& closure) { |
| PostPriorityDelayedTask(p, closure, 0); |
| } |
| |
| void MessageLoop::PostDelayedTask(const Closure& closure, int64_t delayed_ms) { |
| PostPriorityDelayedTask(TaskPriority::NORMAL, closure, delayed_ms); |
| } |
| |
| void MessageLoop::PostPriorityDelayedTask(TaskPriority p, |
| const Closure& closure, |
| int64_t delayed_ms) { |
| TimePoint time_point = |
| TimePoint::Now() + TimeUnit::FromMilliseconds(delayed_ms); |
| std::lock_guard<std::mutex> lock(delayed_tasks_mutex_); |
| // If the time of top task don't change, we don't need to reschedule. |
| if (!delayed_tasks_.empty()) { |
| auto old_top_time = delayed_tasks_.top().time_point; |
| delayed_tasks_.push({p, std::move(closure), std::move(time_point)}); |
| if (old_top_time > delayed_tasks_.top().time_point) { |
| message_pump_->ScheduleWork(); |
| } |
| } else { |
| delayed_tasks_.push({p, std::move(closure), std::move(time_point)}); |
| message_pump_->ScheduleWork(); |
| } |
| } |
| } // namespace base |
| } // namespace weex |