1 files changed, 169 insertions, 0 deletions
diff --git a/mcop/thread.cc b/mcop/thread.cc
new file mode 100644
index 0000000..2d81118
--- /dev/null
+++ b/mcop/thread.cc
@@ -0,0 +1,169 @@
+    /*
+
+    Copyright (C) 2001 Stefan Westerfeld
+                       stefan@space.twc.de
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+  
+    This library 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
+    Library General Public License for more details.
+   
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+
+    */
+
+#include "thread.h"
+#include <string.h>
+
+using namespace Arts;
+
+// Thread:
+Thread::~Thread()
+{
+	delete impl;
+}
+
+Thread_impl::~Thread_impl()
+{
+}
+
+// Mutex:
+Mutex::~Mutex()
+{
+	delete impl;
+}
+
+Mutex_impl::~Mutex_impl()
+{
+}
+
+// ThreadCondition:
+
+ThreadCondition::~ThreadCondition()
+{
+	delete impl;
+}
+
+ThreadCondition_impl::~ThreadCondition_impl()
+{
+}
+
+// Semaphore
+Semaphore::~Semaphore()
+{
+	delete impl;
+}
+
+Semaphore_impl::~Semaphore_impl()
+{
+}
+
+// No threading:
+
+namespace Arts {
+
+class SystemThreadsNoMutex_impl : public Mutex_impl {
+public:
+	void lock() {};
+	bool tryLock() { return true; };
+	void unlock() {};
+};
+
+static Thread *systemThreadsNoneCurrent = 0;
+
+class SystemThreadsNoThread_impl : public Thread_impl {
+private:
+	Thread *thread;
+public:
+	SystemThreadsNoThread_impl(Thread *thread) : thread(thread) {}
+	void setPriority(int) {}
+	void start() {
+		Thread *oldCurrent = systemThreadsNoneCurrent;
+
+		systemThreadsNoneCurrent = thread;
+		thread->run();
+		systemThreadsNoneCurrent = oldCurrent;
+	}
+	void waitDone() {}
+};
+
+class SystemThreadsNoThreadCondition_impl : public ThreadCondition_impl {
+public:
+	void wakeOne() {};
+	void wakeAll() {};
+	void wait(Mutex_impl *) {};
+};
+
+class SystemThreadsNoSemaphore_impl : public Semaphore_impl {
+public:
+	void wait() {}
+	int tryWait() { return 0; }
+	void post() {}
+	int getValue() { return 0; }
+};
+
+class SystemThreadsNone : public SystemThreads {
+public:
+	bool isMainThread() {
+		return (systemThreadsNoneCurrent == 0);
+	}
+	Mutex_impl *createMutex_impl() {
+		return new SystemThreadsNoMutex_impl();
+	}
+	Mutex_impl *createRecMutex_impl() {
+		return new SystemThreadsNoMutex_impl();
+	}
+	Thread_impl *createThread_impl(Thread *thread) {
+		return new SystemThreadsNoThread_impl(thread);
+	}
+	ThreadCondition_impl *createThreadCondition_impl() {
+		return new SystemThreadsNoThreadCondition_impl();
+	}
+	Thread *getCurrentThread() {
+		return systemThreadsNoneCurrent;
+	}
+	Semaphore_impl *createSemaphore_impl(int, int) {
+		return new SystemThreadsNoSemaphore_impl();
+	}
+};
+
+}
+
+static SystemThreadsNone systemThreadsNone;
+static SystemThreads *SystemThreads_the = 0;
+
+SystemThreads *SystemThreads::the()
+{
+	if(!SystemThreads_the) return &systemThreadsNone;
+	return SystemThreads_the;
+}
+
+bool SystemThreads::init(SystemThreads *the)
+{
+	if(SystemThreads_the)
+		return false;
+	else
+	{
+		SystemThreads_the = the;
+		return true;
+	}
+}
+
+bool SystemThreads::supported()
+{
+	return (SystemThreads_the != 0);
+}
+
+SystemThreads::~SystemThreads()
+{
+}
+
+namespace Arts { void ARTS_EXPORT *gslGlobalMutexTable = 0; }