f3a3cb7a60
Test: AsyncFdWatcherSocketTest.WatchTwoFileDescriptors Change-Id: I2444515541e9be01720341c693012a580b3cb04f
67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
//
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// Copyright 2016 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#pragma once
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#include <map>
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#include <mutex>
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#include <thread>
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namespace android {
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namespace hardware {
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namespace bluetooth {
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namespace async {
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using ReadCallback = std::function<void(int)>;
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using TimeoutCallback = std::function<void(void)>;
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class AsyncFdWatcher {
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public:
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AsyncFdWatcher() = default;
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~AsyncFdWatcher();
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int WatchFdForNonBlockingReads(int file_descriptor,
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const ReadCallback& on_read_fd_ready_callback);
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int ConfigureTimeout(const std::chrono::milliseconds timeout,
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const TimeoutCallback& on_timeout_callback);
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void StopWatchingFileDescriptors();
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private:
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AsyncFdWatcher(const AsyncFdWatcher&) = delete;
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AsyncFdWatcher& operator=(const AsyncFdWatcher&) = delete;
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int tryStartThread();
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int stopThread();
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int notifyThread();
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void ThreadRoutine();
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std::atomic_bool running_{false};
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std::thread thread_;
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std::mutex internal_mutex_;
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std::mutex timeout_mutex_;
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std::map<int, ReadCallback> watched_fds_;
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int notification_listen_fd_;
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int notification_write_fd_;
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TimeoutCallback timeout_cb_;
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std::chrono::milliseconds timeout_ms_;
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};
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} // namespace async
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} // namespace bluetooth
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} // namespace hardware
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} // namespace android
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