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72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
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// This file is originally from Trantor - Poller.h
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// Copyright (c) 2016-2021, Tao An. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Tao An nor the names of other contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include "core/loops/event_loop.h"
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#include <map>
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#include <memory>
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class Channel;
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#ifdef _WIN32
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using EventCallback = std::function<void(uint64_t)>;
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#endif
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class Poller {
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protected:
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Poller(const Poller &) = delete;
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Poller &operator=(const Poller &) = delete;
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// some uncopyable classes maybe support move constructor....
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Poller(Poller &&) noexcept(true) = default;
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Poller &operator=(Poller &&) noexcept(true) = default;
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public:
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explicit Poller(EventLoop *loop) :
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ownerLoop_(loop){};
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virtual ~Poller() {
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}
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void assertInLoopThread() {
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ownerLoop_->assertInLoopThread();
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}
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virtual void poll(int timeoutMs, ChannelList *activeChannels) = 0;
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virtual void updateChannel(Channel *channel) = 0;
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virtual void removeChannel(Channel *channel) = 0;
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#ifdef _WIN32
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virtual void postEvent(uint64_t event) = 0;
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virtual void setEventCallback(const EventCallback &cb) = 0;
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#endif
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virtual void resetAfterFork() {
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}
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static Poller *newPoller(EventLoop *loop);
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private:
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EventLoop *ownerLoop_;
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};
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