1 files changed, 59 insertions, 0 deletions
diff --git a/c/src/exec/score/src/threadqfirst.c b/c/src/exec/score/src/threadqfirst.c
new file mode 100644
index 0000000000..d6cbc10f2c
--- /dev/null
+++ b/c/src/exec/score/src/threadqfirst.c
@@ -0,0 +1,59 @@
+/*
+ *  Thread Queue Handler
+ *
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <rtems/system.h>
+#include <rtems/score/chain.h>
+#include <rtems/score/isr.h>
+#include <rtems/score/object.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+#include <rtems/score/tqdata.h>
+
+/*PAGE
+ *
+ *  _Thread_queue_First
+ *
+ *  This routines returns a pointer to the first thread on the
+ *  specified threadq.
+ *
+ *  Input parameters:
+ *    the_thread_queue - pointer to thread queue
+ *
+ *  Output parameters:
+ *    returns - first thread or NULL
+ */
+
+Thread_Control *_Thread_queue_First(
+  Thread_queue_Control *the_thread_queue
+)
+{
+  Thread_Control *the_thread;
+
+  switch ( the_thread_queue->discipline ) {
+    case THREAD_QUEUE_DISCIPLINE_FIFO:
+      the_thread = _Thread_queue_First_fifo( the_thread_queue );
+      break;
+    case THREAD_QUEUE_DISCIPLINE_PRIORITY:
+      the_thread = _Thread_queue_First_priority( the_thread_queue );
+      break;
+    default:              /* this is only to prevent warnings */
+      the_thread = NULL;
+      break;
+  }
+
+  return the_thread;
+}
+