4.115
Last change
on this file since e6f7f81 was
6eba7c85,
checked in by Sebastian Huber <sebastian.huber@…>, on 06/10/13 at 14:15:46
|
scheduler: Specify thread of yield operation
The yielding thread of the yield operation is now specified by a
parameter. The tick operation may be performed for each executing
thread in a SMP configuration.
|
-
Property mode set to
100644
|
File size:
1.3 KB
|
Line | |
---|
1 | /** |
---|
2 | * @file |
---|
3 | * |
---|
4 | * @brief Scheduler Priority Yield |
---|
5 | * @ingroup ScoreScheduler |
---|
6 | */ |
---|
7 | |
---|
8 | /* |
---|
9 | * Copyright (C) 2010 Gedare Bloom. |
---|
10 | * Copyright (C) 2011 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.com/license/LICENSE. |
---|
15 | */ |
---|
16 | |
---|
17 | #if HAVE_CONFIG_H |
---|
18 | #include "config.h" |
---|
19 | #endif |
---|
20 | |
---|
21 | #include <rtems/system.h> |
---|
22 | #include <rtems/score/isr.h> |
---|
23 | #include <rtems/score/scheduler.h> |
---|
24 | #include <rtems/score/schedulerpriority.h> |
---|
25 | #include <rtems/score/thread.h> |
---|
26 | |
---|
27 | void _Scheduler_priority_Yield( Thread_Control *thread ) |
---|
28 | { |
---|
29 | Scheduler_priority_Per_thread *sched_info; |
---|
30 | ISR_Level level; |
---|
31 | Chain_Control *ready; |
---|
32 | |
---|
33 | sched_info = (Scheduler_priority_Per_thread *) thread->scheduler_info; |
---|
34 | ready = sched_info->ready_chain; |
---|
35 | _ISR_Disable( level ); |
---|
36 | if ( !_Chain_Has_only_one_node( ready ) ) { |
---|
37 | _Chain_Extract_unprotected( &thread->Object.Node ); |
---|
38 | _Chain_Append_unprotected( ready, &thread->Object.Node ); |
---|
39 | |
---|
40 | _ISR_Flash( level ); |
---|
41 | |
---|
42 | if ( _Thread_Is_heir( thread ) ) |
---|
43 | _Thread_Heir = (Thread_Control *) _Chain_First( ready ); |
---|
44 | _Thread_Dispatch_necessary = true; |
---|
45 | } |
---|
46 | else if ( !_Thread_Is_heir( thread ) ) |
---|
47 | _Thread_Dispatch_necessary = true; |
---|
48 | |
---|
49 | _ISR_Enable( level ); |
---|
50 | } |
---|
Note: See
TracBrowser
for help on using the repository browser.