figc.16

unix环境高级编程第二版配套源代码 unix环境高级编程第二版配套源代码

#include <poll.h>

void
sleep_us(unsigned int nusecs)
{
	struct pollfd	dummy;
	int				timeout;

	if ((timeout = nusecs / 1000) <= 0)
		timeout = 1;
	poll(&dummy, 0, timeout);
}