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-rw-r--r--c/src/exec/score/src/threadqdequeue.c63
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diff --git a/c/src/exec/score/src/threadqdequeue.c b/c/src/exec/score/src/threadqdequeue.c
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+/*
+ * 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_Dequeue
+ *
+ * This routine removes a thread from the specified threadq. If the
+ * threadq discipline is FIFO, it unblocks a thread, and cancels its
+ * timeout timer. Priority discipline is processed elsewhere.
+ *
+ * Input parameters:
+ * the_thread_queue - pointer to threadq
+ *
+ * Output parameters:
+ * returns - thread dequeued or NULL
+ *
+ * INTERRUPT LATENCY:
+ * check sync
+ */
+
+Thread_Control *_Thread_queue_Dequeue(
+ Thread_queue_Control *the_thread_queue
+)
+{
+ Thread_Control *the_thread;
+
+ switch ( the_thread_queue->discipline ) {
+ case THREAD_QUEUE_DISCIPLINE_FIFO:
+ the_thread = _Thread_queue_Dequeue_fifo( the_thread_queue );
+ break;
+ case THREAD_QUEUE_DISCIPLINE_PRIORITY:
+ the_thread = _Thread_queue_Dequeue_priority( the_thread_queue );
+ break;
+ default: /* this is only to prevent warnings */
+ the_thread = NULL;
+ break;
+ }
+
+ return( the_thread );
+}
+