RUSAGE_SELF
if (getrusage(RUSAGE_SELF, &ru) < 0)
getrusage(RUSAGE_SELF, &now);
if (getrusage(RUSAGE_SELF, &ru))
if (getrusage(RUSAGE_SELF, &ru) < 0)
getrusage(RUSAGE_SELF, &before);
getrusage(RUSAGE_SELF, &after);
case RUSAGE_SELF:
? RUSAGE_CHILDREN : RUSAGE_SELF, &rusage);