acl/lib_fiber/samples-c++/stamp.h

29 lines
493 B
C

#ifndef __STAMP_INCLUDE_H__
#define __STAMP_INCLUDE_H__
#ifdef __cplusplus
extern "C" {
#endif
static double stamp_sub(const struct timeval *from, const struct timeval *sub)
{
struct timeval res;
memcpy(&res, from, sizeof(struct timeval));
res.tv_usec -= sub->tv_usec;
if (res.tv_usec < 0) {
--res.tv_sec;
res.tv_usec += 1000000;
}
res.tv_sec -= sub->tv_sec;
return (res.tv_sec * 1000.0 + res.tv_usec/1000.0);
}
#ifdef __cplusplus
}
#endif
#endif