C 语言获得当前时间 （微秒）

转自：https://gist.github.com/sevko/d23646ba07c77c15fde9

Get the current time in microseconds in C.

程序：

#include <sys/time.h>

/**
 * Returns the current time in microseconds.
 */
long getMicrotime(){
	struct timeval currentTime;
	gettimeofday(&currentTime, NULL);
	return currentTime.tv_sec * (int)1e6 + currentTime.tv_usec;
}

运行环境：

linux