Update.

1999-07-26  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/generic/clock_getres.c: New file.
	* sysdeps/generic/clock_gettime.c: New file.
	* sysdeps/generic/clock_settime.c: New file.
	* sysdeps/generic/timer_create.c: New file.
	* sysdeps/generic/timer_delete.c: New file.
	* sysdeps/generic/timer_getoverr.c: New file.
	* sysdeps/generic/timer_gettime.c: New file.
	* sysdeps/generic/timer_settime.c: New file.

	* sysdeps/generic/bits/time.h: Define __clockid_t, __timer_t,
	CLOCK_REALTIME, and TIMER_ABSTIME.
	* sysdeps/mach/hurd/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/alpha/bits/time.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/time.h: Likewise.

	* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_TIMERS.

	* sysdeps/unix/sysv/linux/bits/siginfo.h: Define si_timer1 and
	si_timer2.

	* sysdeps/unix/sysv/linux/syscalls.list: Add clock and timer syscalls.

	* time/Makefile (routines): Add clock_getres, clock_gettime,
	clock_setres, timer_create, timer_delete, timer_getoverr,
	timer_gettime, and timer_settime.

	* time/time.h: Define clockid_t, timer_t, and struct itimerspec for
	POSIX.1b.  Add prototypes for clock and timer functions.

2 files changed, 51 insertions, 2 deletions

diff --git a/time/Makefile b/time/Makefile
index c0cbb91a1d..8986e96bef 100644
--- a/time/Makefile
+++ b/time/Makefile
@@ -28,7 +28,10 @@ routines := offtime asctime clock ctime ctime_r difftime \
 	    gettimeofday settimeofday adjtime tzset	 \
 	    tzfile getitimer setitimer			 \
 	    stime dysize timegm ftime			 \
-	    strptime getdate wcsftime
+	    strptime getdate wcsftime			 \
+	    clock_getres clock_gettime clock_setres	 \
+	    timer_create timer_delete timer_getoverr	 \
+	    timer_gettime timer_settime
 
 tests	:= test_time clocktest tst-posixtz tst-strptime tst_wcsftime
 
diff --git a/time/time.h b/time/time.h
index 0871561f18..7479e8fa6b 100644
--- a/time/time.h
+++ b/time/time.h
@@ -78,7 +78,7 @@ typedef __time_t time_t;
     ((defined _TIME_H && defined __USE_POSIX199309) || defined __need_timespec)
 # define __timespec_defined	1
 
-/* POSIX.4 structure for a time value.  This is like a `struct timeval' but
+/* POSIX.1b structure for a time value.  This is like a `struct timeval' but
    has nanoseconds instead of microseconds.  */
 struct timespec
   {
@@ -114,6 +114,22 @@ struct tm
 };
 
 
+#ifdef __USE_POSIX199309
+/* Clock ID used in clock and timer functions.  */
+typedef __clockid_t clockid_t;
+
+/* Timer ID returned by `timer_create'.  */
+typedef __timer_t timer_t;
+
+/* POSIX.1b structure for timer start values and intervals.  */
+struct itimerspec
+  {
+    struct timespec it_interval;
+    struct timespec it_value;
+  };
+#endif	/* POSIX.1b */
+
+
 /* Time used by the program so far (user time + system time).
    The result / CLOCKS_PER_SECOND is program time in seconds.  */
 extern clock_t clock __P ((void));
@@ -239,6 +255,36 @@ extern int dysize __P ((int __year));
 /* Pause execution for a number of nanoseconds.  */
 extern int nanosleep __P ((__const struct timespec *__requested_time,
 			   struct timespec *__remaining));
+
+
+/* Get resolution of clock CLOCK_ID.  */
+extern int clock_getres __P ((clockid_t __clock_id, struct timespec *__res));
+
+/* Get current value of clock CLOCK_ID and store it in TP.  */
+extern int clock_gettime __P ((clockid_t __clock_id, struct timespec *__tp));
+
+/* Set clock CLOCK_ID to value TP.  */
+extern int clock_settime __P ((clockid_t __clock_id,
+			       __const struct timespec *__tp));
+
+
+/* Create new per-process timer using CLOCK_ID.  */
+extern int timer_create __P ((clockid_t __clock_id, struct sigevent *__evp,
+			      timer_t *__timerid));
+
+/* Delete timer TIMERID.  */
+extern int timer_delete __P ((timer_t __timerid));
+
+/* Set timer TIMERID to VALUE, returning old value in OVLAUE.  */
+extern int timer_settime __P ((timer_t __timerid, int __flags,
+			       __const struct itimerspec *__value,
+			       struct itimerspec *__ovalue));
+
+/* Get current value of timer TIMERID and store it in VLAUE.  */
+extern int timer_gettime __P ((timer_t __timerid, struct itimerspec *__value));
+
+/* Get expiration overrun for timer TIMERID.  */
+extern int timer_getoverrun __P ((timer_t __timerid));
 # endif