New git repository for release - version 0.2.0 tagged

node/Thread.cpp

@@ -0,0 +1,192 @@
+/*
+ * ZeroTier One - Global Peer to Peer Ethernet
+ * Copyright (C) 2012-2013  ZeroTier Networks LLC
+ *
+ * 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/>.
+ *
+ * --
+ *
+ * ZeroTier may be used and distributed under the terms of the GPLv3, which
+ * are available at: http://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * If you would like to embed ZeroTier into a commercial application or
+ * redistribute it in a modified binary form, please contact ZeroTier Networks
+ * LLC. Start here: http://www.zerotier.com/
+ */
+
+#include "Thread.hpp"
+
+#if defined(__APPLE__) || defined(__linux__) || defined(linux) || defined(__LINUX__) || defined(__linux)
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <stdexcept>
+
+extern "C" {
+static void *__m_thread_main(void *ptr)
+{
+	((ZeroTier::Thread *)ptr)->__intl_run();
+	return (void *)0;
+}
+}
+
+namespace ZeroTier {
+
+Thread::Thread() :
+	suicidalThread(false),
+	_impl(malloc(sizeof(pthread_t))),
+	_running()
+{
+	memset(_impl,0,sizeof(pthread_t));
+}
+
+Thread::~Thread()
+{
+	free(_impl);
+}
+
+void Thread::start()
+{
+	if (!*_running) {
+		++_running;
+		pthread_create((pthread_t *)_impl,(const pthread_attr_t *)0,&__m_thread_main,(void *)this);
+	}
+}
+
+void Thread::join()
+{
+	void *tmp;
+	if (*_running)
+		pthread_join(*((pthread_t *)_impl),&tmp);
+}
+
+void Thread::sleep(unsigned long ms)
+{
+	usleep(ms);
+}
+
+void Thread::__intl_run()
+{
+	for(;;) {
+		_notInit = false;
+		this->main();
+		if (suicidalThread) {
+			delete this;
+			return;
+		}
+		if (_notInit) // UGLY ASS HACK: see main()
+			usleep(50);
+		else break;
+	}
+	--_running;
+}
+
+void Thread::main()
+	throw()
+{
+	_notInit = true; // UGLY ASS HACK: retry if subclass has not defined virtual function pointer yet
+}
+
+} // namespace ZeroTier
+
+#endif
+
+#ifdef _WIN32
+
+#include <Windows.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+DWORD WINAPI __m_thread_main(LPVOID lpParam)
+{
+	((ZeroTier::Thread *)lpParam)->__intl_run();
+	return 0;
+}
+
+struct __m_thread_info
+{
+	HANDLE threadHandle;
+	DWORD threadId;
+	bool started;
+};
+
+namespace ZeroTier {
+
+Thread::Thread() :
+	suicidalThread(false),
+	_impl(malloc(sizeof(__m_thread_info))),
+	_running()
+{
+	memset(_impl,0,sizeof(__m_thread_info));
+}
+
+Thread::~Thread()
+{
+	if (((__m_thread_info *)_impl)->started)
+		CloseHandle(((__m_thread_info *)_impl)->threadHandle);
+	free(_impl);
+}
+
+void Thread::start()
+{
+	if (!*_running) {
+		++_running;
+		if ((((__m_thread_info *)_impl)->threadHandle = CreateThread(NULL,0,__m_thread_main,this,0,&(((__m_thread_info *)_impl)->threadId))) != NULL) {
+			((__m_thread_info *)_impl)->started = true;
+		}
+	}
+}
+
+void Thread::join()
+{
+	if (*_running)
+		WaitForSingleObject(((__m_thread_info *)_impl)->threadHandle,INFINITE);
+}
+
+void Thread::__intl_run()
+{
+	for(;;) {
+		_notInit = false;
+		this->main();
+		if (suicidalThread) {
+			delete this;
+			return;
+		}
+		if (_notInit)
+			Thread::sleep(50);
+		else break;
+	}
+	--_running;
+}
+
+void Thread::main()
+	throw()
+{
+	_notInit = true; // HACK: retry if subclass has not defined virtual function pointer yet
+}
+
+struct _Thread_RunInBackgroundData
+{
+	void (*func)(void *);
+	void *ptr;
+	HANDLE threadHandle;
+	DWORD threadId;
+};
+
+} // namespace ZeroTier
+
+#endif