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Diffstat (limited to 'cpukit/sapi/src/chaingetwait.c')
-rw-r--r-- | cpukit/sapi/src/chaingetwait.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/cpukit/sapi/src/chaingetwait.c b/cpukit/sapi/src/chaingetwait.c new file mode 100644 index 0000000000..38986bc9c1 --- /dev/null +++ b/cpukit/sapi/src/chaingetwait.c @@ -0,0 +1,55 @@ +/** + * @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; +} |