Check in the pristine copy of ICU 4.6...

icu46/source/test/threadtest/threadtest.h

+//
+//********************************************************************
+//   Copyright (C) 2002, International Business Machines
+//   Corporation and others.  All Rights Reserved.
+//********************************************************************
+//
+// File threadtest.h
+//
+#ifndef ABSTRACTTHREADTEST_H
+#define ABSTRACTTHREADTEST_H
+//------------------------------------------------------------------------------
+//
+//   class AbstractThreadTest    Base class for threading tests.
+//                         Use of this abstract base isolates the part of the
+//                         program that nows how to spin up and control threads
+//                         from the specific stuff being tested, and (hopefully)
+//                         simplifies adding new threading tests for different parts
+//                         of ICU.
+//
+//     Derived classes:    A running test will have exactly one instance of a
+//                         derived class, which will persist for the duration of the
+//                         test and be shared among all of the threads involved in
+//                         the test.
+//
+//                         The constructor will be called in a single-threaded environment,
+//                         and should set up any data that will need to persist for the
+//                         duration.
+//
+//                         runOnce() will be called repeatedly by the working threads of
+//                         the test in the full multi-threaded environment.
+//
+//                         check() will be called periodically in a single threaded
+//                         environment, with the worker threads temporarily suspended between
+//                         between calls to runOnce().  Do consistency checks here.
+//
+//------------------------------------------------------------------------------
+class AbstractThreadTest {
+public:
+                     AbstractThreadTest() {};
+    virtual         ~AbstractThreadTest() {};
+    virtual void     check()   = 0;
+    virtual void     runOnce() = 0;
+};
+
+#endif // ABSTRACTTHREADTEST_H
+