fdevent_epoll.h

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#pragma once
 
/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed 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.
 */
 
#if defined(__linux__)
 
#include "sysdeps.h"
 
#include <sys/epoll.h>
 
#include <deque>
#include <list>
#include <mutex>
#include <unordered_map>
 
#include <android-base/thread_annotations.h>
 
#include "adb_unique_fd.h"
#include "fdevent.h"
 
struct fdevent_context_epoll final : public fdevent_context {
    fdevent_context_epoll();
    virtual ~fdevent_context_epoll();
 
    virtual void Register(fdevent* fde) final;
    virtual void Unregister(fdevent* fde) final;
 
    virtual void Set(fdevent* fde, unsigned events) final;
 
    virtual void Loop() final;
    size_t InstalledCount() final;
 
  protected:
    virtual void Interrupt() final;
 
  private:
    unique_fd epoll_fd_;
    unique_fd interrupt_fd_;
    fdevent* interrupt_fde_ = nullptr;
};
 
#endif  // defined(__linux__)