Removed cruft from project

attic/VirtualSocket.cpp

@@ -0,0 +1,105 @@
+/*
+ * ZeroTier SDK - Network Virtualization Everywhere
+ * Copyright (C) 2011-2018  ZeroTier, Inc.  https://www.zerotier.com/
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ * --
+ *
+ * You can be released from the requirements of the license by purchasing
+ * a commercial license. Buying such a license is mandatory as soon as you
+ * develop commercial closed-source software that incorporates or links
+ * directly against ZeroTier software without disclosing the source code
+ * of your own application.
+ */
+
+/**
+ * @file
+ *
+ * Platform- and stack-agnostic implementation of a socket-like object
+ */
+
+#include "libztDefs.h"
+
+#ifdef ZT_VIRTUAL_SOCKET
+
+#include <ctime>
+#include <sys/socket.h>
+
+#include "Phy.hpp"
+
+#include "libzt.h"
+#include "libztDebug.h"
+#include "VirtualSocket.h"
+#include "VirtualTap.h"
+#include "RingBuffer.h"
+
+class VirtualTap;
+
+void VirtualSocket::apply_state(int state) {
+	// states may be set by application or by stack callbacks, thus this must be guarded
+	_op_m.lock();
+	_state &= state;
+	_op_m.unlock();
+}
+
+void VirtualSocket::set_state(int state) {
+	_op_m.lock();
+	_state = state;
+	_op_m.unlock();
+}
+
+int VirtualSocket::get_state() {
+	return _state;
+}
+
+VirtualSocket::VirtualSocket() {
+	DEBUG_EXTRA("this=%p",this);
+	memset(&local_addr, 0, sizeof(sockaddr_storage));
+	memset(&peer_addr,  0, sizeof(sockaddr_storage));
+
+	// ringbuffer used for incoming and outgoing traffic between app, stack, stack drivers, and ZT
+	TXbuf = new RingBuffer(ZT_TCP_TX_BUF_SZ);
+	RXbuf = new RingBuffer(ZT_TCP_RX_BUF_SZ);
+
+	// socketpair, I/O channel between app and stack drivers
+	ZT_PHY_SOCKFD_TYPE fdpair[2];
+	if (socketpair(PF_LOCAL, SOCK_STREAM, 0, fdpair) < 0) {
+		if (errno < 0) {
+			DEBUG_ERROR("unable to create socketpair, errno=%d", errno);
+			return;
+		}
+	}
+	sdk_fd = fdpair[0];
+	app_fd = fdpair[1];
+
+	// set to non-blocking since these are used as the primary I/O channel
+	if (fcntl(sdk_fd, F_SETFL, O_NONBLOCK) < 0) {
+		DEBUG_ERROR("error while setting virtual socket to NONBLOCKING. exiting", errno);
+		exit(0);
+	}
+}
+
+VirtualSocket::~VirtualSocket() {
+	DEBUG_EXTRA("this=%p",this);
+	close(app_fd);
+	close(sdk_fd);
+	delete TXbuf;
+	delete RXbuf;
+	TXbuf = RXbuf = NULL;
+	//picosock->priv = NULL;
+	pcb = NULL;
+}
+
+#endif // ZT_VIRTUAL_SOCKET