a2f5a63bbc
The former is deprecated by C++14. The standard says they are the same: The header defines all types and macros the same as the C standard library header<stdint.h>. Signed-off-by: Rosen Penev <rosenp@gmail.com>
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/*
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* Copyright 2013-2019 Max Kellermann <max.kellermann@gmail.com>
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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
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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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*
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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
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* distribution.
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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
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef EPOLL_FD_HXX
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#define EPOLL_FD_HXX
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#include "UniqueFileDescriptor.hxx"
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#include <cstdint>
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#include <sys/epoll.h>
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/**
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* A class that wraps Linux epoll.
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*/
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class EpollFD {
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UniqueFileDescriptor fd;
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public:
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/**
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* Throws on error.
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*/
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EpollFD();
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EpollFD(EpollFD &&) = default;
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EpollFD &operator=(EpollFD &&) = default;
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int Wait(epoll_event *events, int maxevents, int timeout) noexcept {
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return ::epoll_wait(fd.Get(), events, maxevents, timeout);
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}
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bool Control(int op, int _fd, epoll_event *event) noexcept {
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return ::epoll_ctl(fd.Get(), op, _fd, event) >= 0;
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}
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bool Add(int _fd, uint32_t events, void *ptr) noexcept {
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epoll_event e;
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e.events = events;
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e.data.ptr = ptr;
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return Control(EPOLL_CTL_ADD, _fd, &e);
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}
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bool Modify(int _fd, uint32_t events, void *ptr) noexcept {
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epoll_event e;
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e.events = events;
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e.data.ptr = ptr;
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return Control(EPOLL_CTL_MOD, _fd, &e);
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}
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bool Remove(int _fd) noexcept {
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return Control(EPOLL_CTL_DEL, _fd, nullptr);
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}
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};
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#endif
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