forked from Imagelibrary/rtems
69f2a078c8
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().
56 lines
1.0 KiB
C
56 lines
1.0 KiB
C
/**
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* @file
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*
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* @ingroup ClassicChains
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*
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* @brief rtems_chain_get_with_wait() implementation.
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*/
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/*
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* Copyright (c) 2010 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems/chain.h>
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rtems_status_code rtems_chain_get_with_wait(
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rtems_chain_control *chain,
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rtems_event_set events,
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rtems_interval timeout,
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rtems_chain_node **node_ptr
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)
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{
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rtems_status_code sc = RTEMS_SUCCESSFUL;
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rtems_chain_node *node = NULL;
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while (
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sc == RTEMS_SUCCESSFUL
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&& (node = rtems_chain_get( chain )) == NULL
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) {
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rtems_event_set out;
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sc = rtems_event_receive(
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events,
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RTEMS_EVENT_ALL | RTEMS_WAIT,
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timeout,
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&out
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);
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}
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*node_ptr = node;
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return sc;
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}
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