Imported MaNGOS revision 6767 from http://mangos.svn.sourceforge.net/svnroot/mangos/trunk/

dep/src/zthread/SynchronousExecutor.cxx

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2005, Eric Crahen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is furnished
+ * to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "zthread/SynchronousExecutor.h"
+
+namespace ZThread {
+
+  SynchronousExecutor::SynchronousExecutor() 
+    : _canceled(false) {}
+
+  SynchronousExecutor::~SynchronousExecutor() {
+  }
+  
+  void SynchronousExecutor::cancel() {
+
+    Guard<Mutex> g(_lock);
+    _canceled = true;
+
+  }
+
+  bool SynchronousExecutor::isCanceled() {
+    
+    Guard<Mutex> g(_lock);
+    return _canceled;
+    
+  }
+
+  void SynchronousExecutor::interrupt() {
+  }
+
+  void SynchronousExecutor::execute(const Task& task) {
+    
+    // Canceled Executors will not accept new tasks, quick 
+    // check to avoid excessive locking in the canceled state
+    if(_canceled) 
+      throw Cancellation_Exception();
+    
+    Guard<Mutex> g(_lock);
+    
+    if(_canceled) // Double check
+      throw Cancellation_Exception();
+    
+    // Run the task.
+    Task(task)->run();
+    
+  }  
+
+  void SynchronousExecutor::wait() {
+    
+    if(Thread::interrupted())
+      throw Interrupted_Exception();
+    
+    Guard<Mutex> g(_lock);
+    
+  }
+  
+  /**
+   * @see Executor::wait(unsigned long)
+   */
+  bool SynchronousExecutor::wait(unsigned long) {
+
+    if(Thread::interrupted())
+      throw Interrupted_Exception();
+    
+    Guard<Mutex> g(_lock);
+    return true;
+    
+  }
+  
+  
+}