1 files changed, 81 insertions, 0 deletions
diff --git a/cpukit/posix/src/timertsr.c b/cpukit/posix/src/timertsr.c
new file mode 100644
index 0000000000..b2a86ce4fb
--- /dev/null
+++ b/cpukit/posix/src/timertsr.c
@@ -0,0 +1,81 @@
+/*
+ * _POSIX_Timer_TSR
+ *
+ *  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 <pthread.h>
+#include <signal.h>
+
+#include <rtems/system.h>
+#include <rtems/seterr.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/tod.h>
+#include <rtems/posix/time.h>
+#include <rtems/posix/ptimer.h>
+#include <rtems/posix/timer.h>
+
+/*
+ *  This is the operation that is run when a timer expires
+ */
+void _POSIX_Timer_TSR(
+  Objects_Id timer __attribute__((unused)),
+  void *data)
+{
+  POSIX_Timer_Control *ptimer;
+  bool                 activated;
+
+  ptimer = (POSIX_Timer_Control *)data;
+
+  /* Increment the number of expirations. */
+  ptimer->overrun = ptimer->overrun + 1;
+
+  /* The timer must be reprogrammed */
+  if ( ( ptimer->timer_data.it_interval.tv_sec  != 0 ) ||
+       ( ptimer->timer_data.it_interval.tv_nsec != 0 ) ) {
+    activated = _POSIX_Timer_Insert_helper(
+      &ptimer->Timer,
+      ptimer->ticks,
+      ptimer->Object.id,
+      _POSIX_Timer_TSR,
+      ptimer
+    );
+    if ( !activated )
+      return;
+
+    /* Store the time when the timer was started again */
+    _TOD_Get( &ptimer->time );
+
+    /* The state really did not change but just to be safe */
+    ptimer->state = POSIX_TIMER_STATE_CREATE_RUN;
+  } else {
+   /* Indicates that the timer is stopped */
+   ptimer->state = POSIX_TIMER_STATE_CREATE_STOP;
+  }
+
+  /*
+   * The sending of the signal to the process running the handling function
+   * specified for that signal is simulated
+   */
+
+  if ( pthread_kill ( ptimer->thread_id, ptimer->inf.sigev_signo ) ) {
+    /* XXX error handling */
+  }
+
+  /* After the signal handler returns, the count of expirations of the
+   * timer must be set to 0.
+   */
+  ptimer->overrun = 0;
+}