deps/jemalloc/test/src/sleep.c


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#include "test/jemalloc_test.h"

/*
 * Sleep for approximately ns nanoseconds.  No lower *nor* upper bound on sleep
 * time is guaranteed.
 */
void
sleep_ns(unsigned ns) {
	assert(ns <= 1000*1000*1000);

#ifdef _WIN32
	Sleep(ns / 1000 / 1000);
#else
	{
		struct timespec timeout;

		if (ns < 1000*1000*1000) {
			timeout.tv_sec = 0;
			timeout.tv_nsec = ns;
		} else {
			timeout.tv_sec = 1;
			timeout.tv_nsec = 0;
		}
		nanosleep(&timeout, NULL);
	}
#endif
}