C++ (Cpp) IPAddress::size 예제들

예제 #1

파일: Socket.cpp 프로젝트: crnt/x0

bool Socket::openTcp(const IPAddress& host, int port, int flags)
{
#ifndef NDEBUG
	setLoggingPrefix("Socket(tcp:%s:%d)", host.str().c_str(), port);
#endif

	flags |= O_NONBLOCK | O_CLOEXEC;

	int typeMask = 0;

#if defined(SOCK_NONBLOCK)
	if (flags & O_NONBLOCK) {
		flags &= ~O_NONBLOCK;
		typeMask |= SOCK_NONBLOCK;
	}
#endif

#if defined(SOCK_CLOEXEC)
	if (flags & O_CLOEXEC) {
		flags &= ~O_CLOEXEC;
		typeMask |= SOCK_CLOEXEC;
	}
#endif

	fd_ = ::socket(host.family(), SOCK_STREAM | typeMask, IPPROTO_TCP);
	if (fd_ < 0) {
		TRACE("socket creation error: %s",  strerror(errno));
		return false;
	}

	if (flags) {
		if (fcntl(fd_, F_SETFL, fcntl(fd_, F_GETFL) | flags) < 0) {
			// error
		}
	}

	int rv = ::connect(fd_, (struct sockaddr*) host.data(), host.size());
	if (rv == 0) {
		TRACE("connect: instant success (fd:%d)", fd_);
		state_ = Operational;
		return true;
	} else if (/*rv < 0 &&*/ errno == EINPROGRESS) {
		TRACE("connect: backgrounding (fd:%d)", fd_);
		state_ = Connecting;
		setMode(Write);
		return true;
	} else {
		TRACE("could not connect to %s:%d: %s", host.str().c_str(), port, strerror(errno));
		::close(fd_);
		fd_ = -1;
		return false;
	}
}