mirror of https://github.com/ArduPilot/ardupilot
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*-
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/*
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* Copyright (C) 2016 Intel Corporation. All rights reserved.
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*
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* This file is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <sys/epoll.h>
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#include <unistd.h>
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#include "AP_HAL/utility/RingBuffer.h"
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#include "Semaphores.h"
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namespace Linux {
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class Poller;
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class Pollable {
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friend class Poller;
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public:
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Pollable(int fd) : _fd(fd) { }
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Pollable() : _fd(-1) { }
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virtual ~Pollable();
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int get_fd() const { return _fd; }
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virtual void on_can_read() { }
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virtual void on_can_write() { }
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virtual void on_error() { }
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virtual void on_hang_up() { }
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protected:
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int _fd;
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};
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class Poller {
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public:
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Poller() : _epfd(epoll_create1(EPOLL_CLOEXEC)) { }
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~Poller() { close(_epfd); }
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bool register_pollable(Pollable*, uint32_t events);
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void unregister_pollable(const Pollable*);
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int poll() const;
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private:
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int _epfd;
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};
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}
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