ftime - get date and time (LEGACY)
The ftime() function shall set the time and millitm members of the timeb structure pointed to by tp to contain the seconds and milliseconds portions, respectively, of the current time in seconds since the Epoch. The contents of the timezone and dstflag members of tp after a call to ftime() are unspecified.
The system clock need not have millisecond granularity. Depending on any granularity (particularly a granularity of one) renders code non-portable.
Upon successful completion, the ftime() function shall return 0; otherwise, -1 shall be returned.
No errors are defined.
Getting the Current Time and Date
The following example shows how to get the current system time values using the ftime() function. The timeb structure pointed to by tp is filled with the current system time values for time and millitm.#include <sys/timeb.h>
struct timeb tp; int status; ... status = ftime(&tp);
For applications portability, the time() function should be used to determine the current time instead of ftime(). Realtime applications should use clock_gettime() to determine the current time instead of ftime().
This function may be withdrawn in a future version.
clock_getres(), ctime(), gettimeofday(), time(), the Base Definitions volume of IEEE Std 1003.1-2001, <sys/timeb.h>
First released in Issue 4, Version 2.
Moved from X/OPEN UNIX extension to BASE.
Normative text previously in the APPLICATION USAGE section is moved to the DESCRIPTION.
This function is marked LEGACY.
The DESCRIPTION is updated to refer to "seconds since the Epoch" rather than "seconds since 00:00:00 UTC (Coordinated Universal Time), January 1 1970" for consistency with other time functions.