ftime






ftime − return date and time

#include <sys/timeb.h>

     );int ftime(struct timeb *tp

This function returns the current time as seconds and
milliseconds since the Epoch, 1970‐01‐01 00:00:00 +0000
(UTC).  The time is returned in which is declared as
follows:

    struct timeb {
        time_t         time;
        unsigned short millitm;
        short          timezone;
        short          dstflag; };

     Here time is the number of seconds since the Epoch, and
millitm is the number of milliseconds since time seconds
since the Epoch.  The timezone field is the local timezone
measured in minutes of time west of Greenwich (with a
negative value indicating minutes east of Greenwich).  The
dstflag field is a flag that, if nonzero, indicates that
Daylight Saving time applies locally during the appropriate
part of the year.

     POSIX.1‐2001 says that the contents of the timezone and
dstflag fields are unspecified; avoid relying on them.

This function always returns 0.  (POSIX.1‐2001 specifies,
and some systems document, a −1 error return.)

For an explanation of the terms used in this section, see

┌──────────┬───────────────┬─────────┐
│Interface Attribute     Value   │
├──────────┼───────────────┼─────────┤
│          │ Thread safety MT‐Safe │
└──────────┴───────────────┴─────────┘

4.2BSD, POSIX.1‐2001.  POSIX.1‐2008 removes the
specification of

     This function is obsolete.  Don’t use it.  If the time
in seconds suffices, can be used; gives microseconds; gives
nanoseconds but is not as widely available.



     Early glibc2 is buggy and returns 0 in the millitm
field; glibc 2.1.1 is correct again.












                             ‐2‐




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