168     trace_ = trace;  in this()
172     if (trace_) writefln(`echo("%s")`, value);  in echo()
177     if (trace_) writef(`delayedEcho("%s", %s ms)... `, value, milliseconds);  in delayedEcho()
179     if (trace_) writeln("returning.");  in delayedEcho()
185     if (trace_) writefln(`fail("%s")`, reason);  in fail()
192     if (trace_) writef(`delayedFail("%s", %s ms)... `, reason, milliseconds);  in delayedFail()
194     if (trace_) writeln("returning.");  in delayedFail()
202   bool trace_;
232     trace_ = trace;  in ServerThread()
248     auto processor = new TServiceProcessor!AsyncTest(new AsyncTestHandler(trace_));  in ServerThread()
261   bool trace_;  in ServerThread()  local
277     trace_ = trace;  in this()
300                 if (trace_) writefln(`Calling echo("%s")... `, id);  in run()
303                 if (trace_) writefln(`echo("%s") done.`, id);  in run()
307                 if (trace_) writefln(`Calling fail("%s")... `, id);  in run()
310                 if (trace_) writefln(`fail("%s") done.`, id);  in run()
340           if (trace_) writefln(`Calling delayedEcho("%s", 100 ms)...`, id);  in run()
349           if (trace_) writefln(`... delayedEcho("%s") done.`, id);  in run()
353           if (trace_) writefln(`Calling delayedFail("%s", 100 ms)... `, id);  in run()
363           if (trace_) writefln(`... delayedFail("%s") done.`, id);  in run()
369           if (trace_) write(`Calling delayedEcho("socketTimeout", 100 ms)... `);  in run()
375           if (trace_) writeln(`timed out as expected.`);  in run()
395   bool trace_;  variable