From 69f2a078c876de5eb13c2f2eb440160b849dff15 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 24 Aug 2010 14:29:55 +0000 Subject: 2010-08-24 Sebastian Huber PR 1673/cpukit * sapi/src/chainappendnotify.c, sapi/src/chaingetnotify.c, sapi/src/chaingetwait.c, sapi/src/chainprependnotify.c: New files. * sapi/Makefile.am: Reflect changes above. * sapi/include/rtems/chain.h: Declare rtems_chain_append_with_notification(), rtems_chain_prepend_with_notification(), rtems_chain_get_with_notification(), and rtems_chain_get_with_wait(). * sapi/inline/rtems/chain.inl: Define rtems_chain_append_with_empty_check(), rtems_chain_prepend_with_empty_check(), and rtems_chain_get_with_empty_check(). --- cpukit/sapi/src/chainprependnotify.c | 44 ++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 cpukit/sapi/src/chainprependnotify.c (limited to 'cpukit/sapi/src/chainprependnotify.c') diff --git a/cpukit/sapi/src/chainprependnotify.c b/cpukit/sapi/src/chainprependnotify.c new file mode 100644 index 0000000000..057e4fbde6 --- /dev/null +++ b/cpukit/sapi/src/chainprependnotify.c @@ -0,0 +1,44 @@ +/** + * @file + * + * @ingroup ClassicChains + * + * @brief rtems_chain_prepend_with_notification() implementation. + */ + +/* + * Copyright (c) 2010 embedded brains GmbH. All rights reserved. + * + * embedded brains GmbH + * Obere Lagerstr. 30 + * 82178 Puchheim + * Germany + * + * + * 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_status_code rtems_chain_prepend_with_notification( + rtems_chain_control *chain, + rtems_chain_node *node, + rtems_id task, + rtems_event_set events +) +{ + rtems_status_code sc = RTEMS_SUCCESSFUL; + bool was_empty = rtems_chain_prepend_with_empty_check( chain, node ); + + if (was_empty) { + sc = rtems_event_send( task, events ); + } + + return sc; +} -- cgit v1.2.3