1 files changed, 57 insertions, 0 deletions
diff --git a/c/src/exec/posix/src/condtimedwait.c b/c/src/exec/posix/src/condtimedwait.c
new file mode 100644
index 0000000000..ed6d676293
--- /dev/null
+++ b/c/src/exec/posix/src/condtimedwait.c
@@ -0,0 +1,57 @@
+/*
+ *  $Id$
+ */
+
+#include <pthread.h>
+#include <errno.h>
+
+#include <rtems/system.h>
+#include <rtems/score/object.h>
+#include <rtems/score/states.h>
+#include <rtems/score/watchdog.h>
+#include <rtems/posix/cond.h>
+#include <rtems/posix/time.h>
+#include <rtems/posix/mutex.h>
+
+/*PAGE
+ *
+ *  11.4.4 Waiting on a Condition, P1003.1c/Draft 10, p. 105
+ */
+ 
+int pthread_cond_timedwait(
+  pthread_cond_t        *cond,
+  pthread_mutex_t       *mutex,
+  const struct timespec *abstime
+)
+{
+  Watchdog_Interval timeout;
+  struct timespec   current_time;
+  struct timespec   difference;
+  boolean           already_timedout = FALSE;
+
+  if ( !abstime )
+    return EINVAL;
+
+  /*
+   *  The abstime is a walltime.  We turn it into an interval.
+   */
+
+  (void) clock_gettime( CLOCK_REALTIME, &current_time );
+
+  /* XXX probably some error checking should go here */
+
+  _POSIX_Timespec_subtract( &current_time, abstime, &difference );
+
+  if ( ( difference.tv_sec < 0 ) || ( ( difference.tv_sec == 0 ) &&
+       ( difference.tv_nsec < 0 ) ) )
+    already_timedout = TRUE;   
+
+  timeout = _POSIX_Timespec_to_interval( &difference );
+
+  return _POSIX_Condition_variables_Wait_support(
+    cond,
+    mutex,
+    timeout,
+    already_timedout
+  );
+}