50 # define trace(...) trace1(__LINE__, __VA_ARGS__)  macro
52 # define trace(...) do { if (0) trace1(__LINE__, __VA_ARGS__); } while (0)  macro
56 #define tell(...) trace(__VA_ARGS__)
88     trace("thread %u in phase %u\n", *number, i);  in client()
92       trace("thread %u is last, signalling main\n", *number);  in client()
94       trace("thread %u is last, signalling main, %s\n", *number, errorstring(ret));  in client()
102       trace("thread %u in phase %u (%u), finished, %s\n", *number, i, phase, errorstring(ret));  in client()
109 …trace("thread %u in phase %u (%u), has unlocked mutex: %s\n", *number, i, phase, errorstring(ret));  in client()
135       trace("main seeing %u threads in phase %u, waiting\n", inside[phase], phase);  in main()
152     trace("main has broadcast to %u: %s\n", phase, errorstring(ret));  in main()
157     trace("main has unlocked mutex %u: %s\n", phase-1, errorstring(ret));  in main()
164   trace("main finished loop\n");  in main()
167     trace("main joining thread %u\n", i);  in main()
169     trace("main joining thread %u: %s\n", i, errorstring(ret));  in main()