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d67553e128
If a file descriptor is being closed, we need to permanently disable any Notifier and remove it from the event loop. This method removes the notifier and disables it so that the EventLoop does not use a invalid file descriptor.
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (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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*/
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#pragma once
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#include <AK/Function.h>
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#include <LibCore/Object.h>
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namespace Core {
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class Notifier : public Object {
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C_OBJECT(Notifier)
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public:
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enum Event {
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None = 0,
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Read = 1,
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Write = 2,
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Exceptional = 4,
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};
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virtual ~Notifier() override;
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void set_enabled(bool);
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Function<void()> on_ready_to_read;
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Function<void()> on_ready_to_write;
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void close();
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int fd() const { return m_fd; }
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unsigned event_mask() const { return m_event_mask; }
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void set_event_mask(unsigned event_mask) { m_event_mask = event_mask; }
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void event(Core::Event&) override;
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private:
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Notifier(int fd, unsigned event_mask, Object* parent = nullptr);
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int m_fd { -1 };
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unsigned m_event_mask { 0 };
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};
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}
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