Check in the pristine copy of ICU 4.6...

icu46/source/test/intltest/simplethread.h

+/********************************************************************
+ * COPYRIGHT: 
+ * Copyright (c) 1997-2009, International Business Machines Corporation and
+ * others. All Rights Reserved.
+ ********************************************************************/
+
+#ifndef SIMPLETHREAD_H
+#define SIMPLETHREAD_H
+
+#include "mutex.h"
+
+class U_EXPORT SimpleThread
+{
+public:
+    SimpleThread();
+    virtual  ~SimpleThread();
+    int32_t   start(void);        // start the thread
+    UBool     isRunning();        // return true if a started thread has exited.
+
+    virtual void run(void) = 0;   // Override this to provide the code to run
+                                  //   in the thread.
+    void *fImplementation;
+
+public:
+    static void sleep(int32_t millis); // probably shouldn't go here but oh well.
+    static void errorFunc();      // Empty function, provides a single convenient place
+                                  //   to break on errors.
+};
+
+#endif
+