From a6cbc9b8690825aebde9694e9132230d57d53847 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Mon, 17 Dec 2007 16:01:42 +0000
Subject: 2007-12-17	Joel Sherrill <joel.sherrill@OARcorp.com>

	* posix/Makefile.am, posix/preinstall.am,
	posix/include/rtems/posix/timer.h, score/src/objectget.c: Split POSIX
	Timer implementation into multiple files. Add obvious error checks
	for NULL parameters. Attempt to reduce include files.
	* posix/src/timercreate.c, posix/src/timerdelete.c,
	posix/src/timergetoverrun.c, posix/src/timergettime.c,
	posix/src/timerinserthelper.c, posix/src/timersettime.c,
	posix/src/timertsr.c: New files.
	* posix/src/ptimer1.c: Removed.
---
 cpukit/posix/src/timercreate.c | 97 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 cpukit/posix/src/timercreate.c

(limited to 'cpukit/posix/src/timercreate.c')

diff --git a/cpukit/posix/src/timercreate.c b/cpukit/posix/src/timercreate.c
new file mode 100644
index 0000000000..90cb9b0f8b
--- /dev/null
+++ b/cpukit/posix/src/timercreate.c
@@ -0,0 +1,97 @@
+/*
+ *  14.2.2 Create a Per-Process Timer, P1003.1b-1993, p. 264
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <time.h>
+#include <errno.h>
+#include <signal.h>
+
+#include <rtems/system.h>
+#include <rtems/seterr.h>
+#include <rtems/score/thread.h>
+#include <rtems/posix/psignal.h>
+#include <rtems/posix/time.h>
+#include <rtems/posix/timer.h>
+
+int timer_create(
+  clockid_t        clock_id,
+  struct sigevent *evp,
+  timer_t         *timerid
+)
+{
+  POSIX_Timer_Control *ptimer;
+
+  if ( clock_id != CLOCK_REALTIME )
+    rtems_set_errno_and_return_minus_one( EINVAL );
+ 
+  if ( !timerid )
+    rtems_set_errno_and_return_minus_one( EINVAL );
+ 
+ /*
+  *  The data of the structure evp are checked in order to verify if they
+  *  are coherent.
+  */
+
+  if (evp != NULL) {
+    /* The structure has data */
+    if ( ( evp->sigev_notify != SIGEV_NONE ) &&
+         ( evp->sigev_notify != SIGEV_SIGNAL ) ) {
+       /* The value of the field sigev_notify is not valid */
+       rtems_set_errno_and_return_minus_one( EINVAL );
+     }
+
+     if ( !evp->sigev_signo )
+       rtems_set_errno_and_return_minus_one( EINVAL );
+
+     if ( !is_valid_signo(evp->sigev_signo) )
+       rtems_set_errno_and_return_minus_one( EINVAL );
+  }
+
+  _Thread_Disable_dispatch();         /* to prevent deletion */
+
+  /*
+   *  Allocate a timer
+   */
+  ptimer = _POSIX_Timer_Allocate();
+  if ( !ptimer ) {
+    _Thread_Enable_dispatch();
+    rtems_set_errno_and_return_minus_one( EAGAIN );
+  }
+
+  /* The data of the created timer are stored to use them later */
+
+  ptimer->state     = POSIX_TIMER_STATE_CREATE_NEW;
+  ptimer->thread_id = _Thread_Executing->Object.id;
+
+  if ( evp != NULL ) {
+    ptimer->inf.sigev_notify = evp->sigev_notify;
+    ptimer->inf.sigev_signo  = evp->sigev_signo;
+    ptimer->inf.sigev_value  = evp->sigev_value;
+  }
+
+  ptimer->overrun  = 0;
+  ptimer->timer_data.it_value.tv_sec     = 0;
+  ptimer->timer_data.it_value.tv_nsec    = 0;
+  ptimer->timer_data.it_interval.tv_sec  = 0;
+  ptimer->timer_data.it_interval.tv_nsec = 0;
+
+  _Watchdog_Initialize( &ptimer->Timer, NULL, 0, NULL );
+  _Objects_Open(&_POSIX_Timer_Information, &ptimer->Object, (Objects_Name) 0);
+
+  *timerid  = ptimer->Object.id;
+  _Thread_Enable_dispatch();
+  return 0;
+}
-- 
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