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

2025-12-15 19:37:02 +00:00 · 2008-10-14 00:29:20 +02:00 · 2008-10-14 00:29:20 +02:00 · 800ee76535
commit 800ee76535
parent d767495d5b
3322 changed files with 903437 additions and 0 deletions
--- a/dep/include/zthread/Waitable.h
+++ b/dep/include/zthread/Waitable.h
@ -0,0 +1,94 @@
+/*
+ * 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.
+ *
+ */
+
+#ifndef __ZTWAITABLE_H__
+#define __ZTWAITABLE_H__
+
+#include "zthread/Exceptions.h"
+
+namespace ZThread { 
+
+  /**
+   * @class Waitable
+   *
+   * @author Eric Crahen <http://www.code-foo.com>
+   * @date <2003-07-16T22:16:41-0400>
+   * @version 2.3.0
+   *
+   * The Waitable interface defines a common method of adding generic <i>wait</i> semantics
+   * to a class. 
+   *
+   * <b>Waiting</b>
+   *
+   * An object implementing the Waitable interface externalizes a mechanism for testing
+   * some internal condition. Another object may <i>wait()</i>s for a Waitable object; 
+   * in doing so, it wait()s for that condition to become true by blocking the caller 
+   * while the condition is false.
+   *
+   * For example, a Condition is Waitable object that extends <i>wait</i> semantics
+   * so that wait()ing means a thread is blocked until some external stimulus 
+   * specifically performs an operation on the Condition to make its internal condition true. 
+   * (serialization aside)
+   *
+   * A Barrier extends <i>wait</i> semantics so that wait()ing mean waiting for other 
+   * waiters, and may include automatically resetting the condition once a wait is complete.
+   *
+   * @see Condition
+   * @see Barrier
+   * @see Executor
+   */
+  class Waitable {
+  public:  
+  
+    //! Destroy a Waitable object.  
+    virtual ~Waitable() {}
+
+    /**
+     * Waiting on an object will generally cause the calling thread to be blocked
+     * for some indefinite period of time. The thread executing will not proceed
+     * any further until the Waitable object releases it unless or an exception
+     * is thrown.
+     */
+    virtual void wait() = 0;
+
+    /**
+     * Waiting on an object will generally cause the calling thread to be blocked
+     * for some indefinite period of time. The thread executing will not proceed
+     * any further until the Waitable object releases it unless or an exception
+     * is thrown.
+     *
+     * @param timeout maximum amount of time, in milliseconds, to spend waiting.
+     *
+     * @return 
+     *   - <em>true</em> if the set of tasks being wait for complete before 
+     *                   <i>timeout</i> milliseconds elapse.
+     *   - <em>false</em> othewise.
+     */
+    virtual bool wait(unsigned long timeout) = 0;
+
+  
+  }; /* Waitable */
+
+
+} // namespace ZThread
+
+#endif //  __ZTWAITABLE_H__