Linux应用层的精确延迟函数

#include #include #include void mdelay(int ms_count) { struct timeval tpStart, tpEnd; float timeUse; gettimeofday(&tpStart, NULL); do { gettimeofday(&tpEnd, NULL); timeUse = 1000 * (tpEnd.tv_sec - tpStart.tv_sec) + 0.001 * (tpEnd.tv_usec - tpStart.tv_usec); } while(timeUse < ms_count); }