1 | /** |
---|
2 | * @file |
---|
3 | * |
---|
4 | * @brief Wait For The Barrier |
---|
5 | * @ingroup ScoreBarrier |
---|
6 | */ |
---|
7 | |
---|
8 | /* |
---|
9 | * COPYRIGHT (c) 1989-2006. |
---|
10 | * On-Line Applications Research Corporation (OAR). |
---|
11 | * |
---|
12 | * The license and distribution terms for this file may be |
---|
13 | * found in the file LICENSE in this distribution or at |
---|
14 | * http://www.rtems.org/license/LICENSE. |
---|
15 | */ |
---|
16 | |
---|
17 | #if HAVE_CONFIG_H |
---|
18 | #include "config.h" |
---|
19 | #endif |
---|
20 | |
---|
21 | #include <rtems/score/corebarrierimpl.h> |
---|
22 | #include <rtems/score/isrlevel.h> |
---|
23 | #include <rtems/score/threadqimpl.h> |
---|
24 | |
---|
25 | void _CORE_barrier_Wait( |
---|
26 | CORE_barrier_Control *the_barrier, |
---|
27 | Thread_Control *executing, |
---|
28 | Objects_Id id, |
---|
29 | bool wait, |
---|
30 | Watchdog_Interval timeout, |
---|
31 | CORE_barrier_API_mp_support_callout api_barrier_mp_support |
---|
32 | ) |
---|
33 | { |
---|
34 | ISR_Level level; |
---|
35 | |
---|
36 | executing->Wait.return_code = CORE_BARRIER_STATUS_SUCCESSFUL; |
---|
37 | _ISR_Disable( level ); |
---|
38 | the_barrier->number_of_waiting_threads++; |
---|
39 | if ( _CORE_barrier_Is_automatic( &the_barrier->Attributes ) ) { |
---|
40 | if ( the_barrier->number_of_waiting_threads == |
---|
41 | the_barrier->Attributes.maximum_count) { |
---|
42 | executing->Wait.return_code = CORE_BARRIER_STATUS_AUTOMATICALLY_RELEASED; |
---|
43 | _ISR_Enable( level ); |
---|
44 | _CORE_barrier_Release( the_barrier, id, api_barrier_mp_support ); |
---|
45 | return; |
---|
46 | } |
---|
47 | } |
---|
48 | |
---|
49 | _Thread_queue_Enter_critical_section( &the_barrier->Wait_queue ); |
---|
50 | executing->Wait.queue = &the_barrier->Wait_queue; |
---|
51 | executing->Wait.id = id; |
---|
52 | _ISR_Enable( level ); |
---|
53 | |
---|
54 | _Thread_queue_Enqueue( &the_barrier->Wait_queue, executing, timeout ); |
---|
55 | } |
---|