Update.

	* sysdeps/pthread/Makefile: New file.  Add rules to build timer
	functionality.
	* sysdeps/unix/sysv/linux/bits/local_lim.h: Add TIMER_MAX.

2000-06-04  Kaz Kylheku  <kaz@ashi.footprints.net>

	* sysdeps/pthread/posix-timer.h: New file.
	* sysdeps/pthread/timer_create.c: New file.
	* sysdeps/pthread/timer_delete.c: New file.
	* sysdeps/pthread/timer_getoverr.c: New file.
	* sysdeps/pthread/timer_gettime.c: New file.
	* sysdeps/pthread/timer_routines.c: New file.
	* sysdeps/pthread/timer_settime.c: New file.
	* sysdeps/pthread/tst-timer.c: New file.

2000-06-08  Ulrich Drepper  <drepper@redhat.com>

1 files changed, 153 insertions, 0 deletions

diff --git a/linuxthreads/sysdeps/pthread/timer_create.c b/linuxthreads/sysdeps/pthread/timer_create.c
new file mode 100644
index 0000000000..36823e83b6
--- /dev/null
+++ b/linuxthreads/sysdeps/pthread/timer_create.c
@@ -0,0 +1,153 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Kaz Kylheku <kaz@ashi.footprints.net>.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <signal.h>
+#include <pthread.h>
+#include <time.h>
+
+#include "posix-timer.h"
+
+
+/* Create new per-process timer using CLOCK.  */
+int
+timer_create (clock_id, evp, timerid)
+     clockid_t clock_id;
+     struct sigevent *evp;
+     timer_t *timerid;
+{
+  int retval = -1;
+  struct timer_node *newtimer = NULL;
+  struct thread_node *thread = NULL;
+
+  if (clock_id != CLOCK_REALTIME)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  pthread_once (&__timer_init_once_control, __timer_init_once);
+
+  if (__timer_init_failed)
+    {
+      errno = ENOMEM;
+      return -1;
+    }
+
+  pthread_mutex_lock (&__timer_mutex);
+
+  newtimer = __timer_alloc ();
+  if (__builtin_expect (newtimer == NULL, 0))
+    {
+      errno = EAGAIN;
+      goto unlock_bail;
+    }
+
+  if (evp != NULL)
+    newtimer->event = *evp;
+  else
+    {
+      newtimer->event.sigev_notify = SIGEV_SIGNAL;
+      newtimer->event.sigev_signo = SIGALRM;
+      newtimer->event.sigev_value.sival_int = timer_ptr2id (newtimer);
+      newtimer->event.sigev_notify_function = 0;
+    }
+
+  newtimer->event.sigev_notify_attributes = &newtimer->attr;
+
+  switch (__builtin_expect (newtimer->event.sigev_notify, SIGEV_SIGNAL))
+    {
+    case SIGEV_NONE:
+      /* This is a strange choice!  */
+      break;
+
+    case SIGEV_SIGNAL:
+      /* We have a global thread for delivering timed signals.
+	 If it is not running, try to start it up.  */
+      if (! __timer_signal_thread.exists)
+	{
+	  if (__builtin_expect (__timer_thread_start (&__timer_signal_thread),
+				1) < 0)
+	    {
+	      errno = EAGAIN;
+	      goto unlock_bail;
+            }
+        }
+      thread = &__timer_signal_thread;
+      break;
+
+    case SIGEV_THREAD:
+      /* Copy over thread attributes or set up default ones.  */
+      if (evp->sigev_notify_attributes)
+	newtimer->attr = *(pthread_attr_t *) evp->sigev_notify_attributes;
+      else
+	pthread_attr_init (&newtimer->attr);
+
+      /* Ensure thread attributes call for deatched thread.  */
+      pthread_attr_setdetachstate (&newtimer->attr, PTHREAD_CREATE_DETACHED);
+
+      /* Try to find existing thread having the right attributes.  */
+      thread = __timer_thread_find_matching (&newtimer->attr);
+
+      /* If no existing thread has these attributes, try to allocate one.  */
+      if (thread == NULL)
+	thread = __timer_thread_alloc (&newtimer->attr);
+
+      /* Out of luck; no threads are available.  */
+      if (__builtin_expect (thread == NULL, 0))
+	{
+	  errno = EAGAIN;
+	  goto unlock_bail;
+	}
+
+      /* If the thread is not running already, try to start it.  */
+      if (! thread->exists
+	  && __builtin_expect (! __timer_thread_start (thread), 0))
+	{
+	  errno = EAGAIN;
+	  goto unlock_bail;
+	}
+      break;
+
+    default:
+      errno = EINVAL;
+      goto unlock_bail;
+    }
+
+  newtimer->clock = clock_id;
+  newtimer->abstime = 0;
+  newtimer->armed = 0;
+  newtimer->thread = thread;
+
+  *timerid = timer_ptr2id (newtimer);
+  retval = 0;
+
+  if (__builtin_expect (retval, 0) == -1)
+    {
+    unlock_bail:
+      if (thread != NULL)
+	__timer_thread_dealloc (thread);
+      if (newtimer != NULL)
+	__timer_dealloc (newtimer);
+    }
+
+  pthread_mutex_unlock (&__timer_mutex);
+
+  return retval;
+}