/*
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* Copyright (C) 2018 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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#ifndef _INIT_EPOLL_H
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#define _INIT_EPOLL_H
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#include <stdint.h>
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#include <sys/epoll.h>
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#include <chrono>
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#include <functional>
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#include <map>
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#include <optional>
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#include <android-base/unique_fd.h>
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#include "result.h"
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namespace android {
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namespace init {
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class Epoll {
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public:
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Epoll();
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Result<Success> Open();
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Result<Success> RegisterHandler(int fd, std::function<void()> handler,
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uint32_t events = EPOLLIN);
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Result<Success> UnregisterHandler(int fd);
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Result<Success> Wait(std::optional<std::chrono::milliseconds> timeout);
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private:
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android::base::unique_fd epoll_fd_;
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std::map<int, std::function<void()>> epoll_handlers_;
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};
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} // namespace init
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} // namespace android
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#endif
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