Preparation for C--, removed classes, namespaces, advanced build options are now controlled via include/libztDefs.h

src/SysUtils.cpp

@@ -0,0 +1,67 @@
+/*
+ * ZeroTier SDK - Network Virtualization Everywhere
+ * Copyright (C) 2011-2017  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-specific implementations of common functions
+ */
+
+#if defined(STACK_LWIP)
+#include "lwip/sockets.h"
+#include "lwip/sys.h"
+#include "lwip/ip_addr.h"
+#include "lwip/netdb.h"
+#include "dns.h"
+#endif
+#if defined(NO_STACK)
+#include <sys/socket.h>
+#endif
+
+#include <sys/socket.h>
+
+#include "SysUtils.h"
+#include <stdint.h>
+#include <pthread.h>
+
+#ifdef __linux__
+#include <sys/syscall.h>
+#include <unistd.h>
+#endif
+
+inline unsigned int gettid()
+{
+#ifdef _WIN32
+		//return GetCurrentThreadId();
+		return 0;
+#elif defined(__linux__)
+		return static_cast<unsigned int>(syscall(__NR_gettid));
+#elif defined(__APPLE__)
+		uint64_t tid64;
+		pthread_threadid_np(0, &tid64);
+		return static_cast<unsigned int>(tid64);
+#endif
+}