HelenOS sources

NSEC2SEC           54 uspace/app/tester/ipc/starve.c 		if (NSEC2SEC(ts_sub_diff(&now, &start)) >= DURATION_SECS)
NSEC2SEC           70 uspace/lib/c/include/perf.h 	stopwatch->end.tv_sec = NSEC2SEC(nanos);
NSEC2SEC           70 uspace/lib/posix/include/libc/perf.h 	stopwatch->end.tv_sec = NSEC2SEC(nanos);