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raii_socket.cpp
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raii_socket.cpp
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/* dns64perf++ - C++14 DNS64 performance tester
* Based on dns64perf by Gabor Lencse <lencse@sze.hu>
* (http://ipv6.tilb.sze.hu/dns64perf/)
* Copyright (C) 2017 Daniel Bakai <bakaid@kszk.bme.hu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
#include "raii_socket.h"
#include <cstring>
#include <errno.h>
#include <fcntl.h>
#include <sys/socket.h>
#include <unistd.h>
SocketException::SocketException(std::string what) : what_{what} {}
const char *SocketException::what() const noexcept { return what_.c_str(); }
Socket::Socket(int sockfd) : sockfd_{sockfd}, closed_{false} {}
Socket::~Socket() {
if (!closed_ && sockfd_ != -1) {
::close(sockfd_);
}
}
Socket::Socket(Socket &&rhs) : sockfd_{rhs.sockfd_} { rhs.sockfd_ = -1; }
Socket &Socket::operator=(Socket &&rhs) {
sockfd_ = rhs.sockfd_;
rhs.sockfd_ = -1;
return *this;
}
void Socket::close() {
if (sockfd_ == -1) {
throw SocketException{"No valid managed socket."};
}
if (::close(sockfd_) == -1) {
throw SocketException{strerror(errno)};
}
closed_ = true;
}
Socket::operator int() { return sockfd_; }