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-rw-r--r--cpukit/sapi/src/chaingetwait.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/cpukit/sapi/src/chaingetwait.c b/cpukit/sapi/src/chaingetwait.c
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+++ b/cpukit/sapi/src/chaingetwait.c
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+/**
+ * @file
+ *
+ * @ingroup ClassicChains
+ *
+ * @brief rtems_chain_get_with_wait() implementation.
+ */
+
+/*
+ * Copyright (c) 2010 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * 82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * 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.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/chain.h>
+
+rtems_status_code rtems_chain_get_with_wait(
+ rtems_chain_control *chain,
+ rtems_event_set events,
+ rtems_interval timeout,
+ rtems_chain_node **node_ptr
+)
+{
+ rtems_status_code sc = RTEMS_SUCCESSFUL;
+ rtems_chain_node *node = NULL;
+
+ while (
+ sc == RTEMS_SUCCESSFUL
+ && (node = rtems_chain_get( chain )) == NULL
+ ) {
+ rtems_event_set out;
+ sc = rtems_event_receive(
+ events,
+ RTEMS_EVENT_ALL | RTEMS_WAIT,
+ timeout,
+ &out
+ );
+ }
+
+ *node_ptr = node;
+
+ return sc;
+}