104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
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/*
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* Copyright (C) 2012-2017 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 UNIQUE_SOCKET_DESCRIPTOR_SOCKET_HXX
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#define UNIQUE_SOCKET_DESCRIPTOR_SOCKET_HXX
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#include "SocketDescriptor.hxx"
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#include <algorithm>
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#include <utility>
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class StaticSocketAddress;
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/**
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* Wrapper for a socket file descriptor.
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*/
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class UniqueSocketDescriptor : public SocketDescriptor {
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public:
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UniqueSocketDescriptor()
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:SocketDescriptor(SocketDescriptor::Undefined()) {}
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explicit UniqueSocketDescriptor(SocketDescriptor _fd)
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:SocketDescriptor(_fd) {}
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explicit UniqueSocketDescriptor(FileDescriptor _fd)
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:SocketDescriptor(_fd) {}
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explicit UniqueSocketDescriptor(int _fd):SocketDescriptor(_fd) {}
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UniqueSocketDescriptor(UniqueSocketDescriptor &&other)
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:SocketDescriptor(std::exchange(other.fd, -1)) {}
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~UniqueSocketDescriptor() {
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if (IsDefined())
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Close();
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}
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/**
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* Release ownership and return the descriptor as an unmanaged
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* #SocketDescriptor instance.
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*/
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SocketDescriptor Release() {
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return std::exchange(*(SocketDescriptor *)this, Undefined());
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}
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UniqueSocketDescriptor &operator=(UniqueSocketDescriptor &&src) {
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std::swap(fd, src.fd);
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return *this;
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}
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bool operator==(const UniqueSocketDescriptor &other) const {
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return fd == other.fd;
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}
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/**
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* @return an "undefined" instance on error
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*/
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UniqueSocketDescriptor AcceptNonBlock(StaticSocketAddress &address) const {
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return UniqueSocketDescriptor(SocketDescriptor::AcceptNonBlock(address));
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}
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static bool CreateSocketPair(int domain, int type, int protocol,
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UniqueSocketDescriptor &a,
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UniqueSocketDescriptor &b) {
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return SocketDescriptor::CreateSocketPair(domain, type,
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protocol,
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a, b);
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}
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static bool CreateSocketPairNonBlock(int domain, int type, int protocol,
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UniqueSocketDescriptor &a,
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UniqueSocketDescriptor &b) {
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return SocketDescriptor::CreateSocketPairNonBlock(domain, type,
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protocol,
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a, b);
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}
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};
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#endif
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