public void Stop()
{
if (!running)
{
return;
}
DebugStub.WriteLine(String.Format("StoppableThread: Asking thread {0} to stop...", thread.ToString()));
VTable.Assert(thread != null);
StopThreadContract /*.Imp*/ terminatorImp = this.terminatorImpRef.Acquire();
terminatorImp.SendTerminate();
bool timeout_occurred = false;
/* TODO
* bool done;
* do {
* switch receive {
* case terminatorImp.AckTerminate():
* done = true;
* break;
*
* case terminatorImp.ChannelClosed():
* // good enough
* done = true;
* DebugStub.WriteLine(String.Format("Warning: Thread {0} closed its termination channel.", thread.ToString()));
* DebugStub.WriteLine("The thread may have terminated unexpectedly (thrown an exception).");
* break;
*
* case timeout(TimeSpan.FromSeconds(10)):
* DebugStub.WriteLine(String.Format("Warning: Thread {0} is ignoring request to terminate.", thread.ToString()));
* done = false;
* timeout_occurred = true;
* break;
* }
* } while (!done);
*/
//delete terminatorImp;
running = false;
while (!doneEvent.WaitOne(TimeSpan.FromSeconds(10)))
{
DebugStub.WriteLine(String.Format("Warning: Thread {0} acknowledge stop request, but has not yet terminated.", thread.ToString()));
timeout_occurred = true;
}
if (timeout_occurred)
{
DebugStub.WriteLine(String.Format("StoppableThread: Thread {0} successfully stopped.", thread.ToString()));
}
}
private void ThreadRoutine()
{
StopThreadContract /*.Exp*/ terminator_exp = terminatorExpRef.Acquire();
try {
Run(terminator_exp);
}
finally {
//delete terminator_exp;
}
}
protected StoppableThread()
{
StopThreadContract /*.Imp*/ terminator_imp;
StopThreadContract /*.Exp*/ terminator_exp;
StopThreadContract.NewChannel(out terminator_imp, out terminator_exp);
terminatorImpRef = (terminator_imp);
terminatorExpRef = (terminator_exp);
running = false;
thread = null;
}
protected abstract void Run(StopThreadContract /*.Exp*/ terminator);