greenplumn mysecond 源码
greenplumn mysecond 代码
文件路径：/gpMgmt/bin/stream/mysecond.c
/* A gettimeofday routine to give access to the wall
clock timer on most UNIX-like systems.
This version defines two entry points -- with
and without appended underscores, so it *should*
automagically link with FORTRAN */
#include <sys/time.h>
double mysecond()
{
/* struct timeval { long tv_sec;
long tv_usec; };
struct timezone { int tz_minuteswest;
int tz_dsttime; }; */
struct timeval tp;
struct timezone tzp;
int i;
i = gettimeofday(&tp,&tzp);
return ( (double) tp.tv_sec + (double) tp.tv_usec * 1.e-6 );
}
double mysecond_() {return mysecond();}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
7、 openharmony