1 | /* |
---|
2 | * Copyright (c) 2014, 2016 embedded brains GmbH. All rights reserved. |
---|
3 | * |
---|
4 | * embedded brains GmbH |
---|
5 | * Dornierstr. 4 |
---|
6 | * 82178 Puchheim |
---|
7 | * Germany |
---|
8 | * <rtems@embedded-brains.de> |
---|
9 | * |
---|
10 | * The license and distribution terms for this file may be |
---|
11 | * found in the file LICENSE in this distribution or at |
---|
12 | * http://www.rtems.org/license/LICENSE. |
---|
13 | */ |
---|
14 | |
---|
15 | #ifndef _RTEMS_SCORE_SCHEDULERNODEIMPL_H |
---|
16 | #define _RTEMS_SCORE_SCHEDULERNODEIMPL_H |
---|
17 | |
---|
18 | #include <rtems/score/schedulernode.h> |
---|
19 | #include <rtems/score/priorityimpl.h> |
---|
20 | |
---|
21 | struct Scheduler_Control; |
---|
22 | |
---|
23 | #ifdef __cplusplus |
---|
24 | extern "C" { |
---|
25 | #endif /* __cplusplus */ |
---|
26 | |
---|
27 | #define SCHEDULER_NODE_OF_WAIT_PRIORITY_NODE( node ) \ |
---|
28 | RTEMS_CONTAINER_OF( node, Scheduler_Node, Wait.Priority.Node.Node.Chain ) |
---|
29 | |
---|
30 | #define SCHEDULER_NODE_OF_WAIT_PRIORITY( node ) \ |
---|
31 | RTEMS_CONTAINER_OF( node, Scheduler_Node, Wait.Priority ) |
---|
32 | |
---|
33 | RTEMS_INLINE_ROUTINE void _Scheduler_Node_do_initialize( |
---|
34 | const struct Scheduler_Control *scheduler, |
---|
35 | Scheduler_Node *node, |
---|
36 | Thread_Control *the_thread, |
---|
37 | Priority_Control priority |
---|
38 | ) |
---|
39 | { |
---|
40 | node->owner = the_thread; |
---|
41 | |
---|
42 | node->Priority.value = priority; |
---|
43 | node->Priority.prepend_it = false; |
---|
44 | |
---|
45 | #if defined(RTEMS_SMP) |
---|
46 | _Chain_Initialize_node( &node->Thread.Wait_node ); |
---|
47 | node->Wait.Priority.scheduler = scheduler; |
---|
48 | node->user = the_thread; |
---|
49 | node->idle = NULL; |
---|
50 | node->accepts_help = the_thread; |
---|
51 | _SMP_sequence_lock_Initialize( &node->Priority.Lock ); |
---|
52 | #else |
---|
53 | (void) scheduler; |
---|
54 | (void) the_thread; |
---|
55 | #endif |
---|
56 | } |
---|
57 | |
---|
58 | RTEMS_INLINE_ROUTINE const Scheduler_Control *_Scheduler_Node_get_scheduler( |
---|
59 | const Scheduler_Node *node |
---|
60 | ) |
---|
61 | { |
---|
62 | return _Priority_Get_scheduler( &node->Wait.Priority ); |
---|
63 | } |
---|
64 | |
---|
65 | RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_owner( |
---|
66 | const Scheduler_Node *node |
---|
67 | ) |
---|
68 | { |
---|
69 | return node->owner; |
---|
70 | } |
---|
71 | |
---|
72 | RTEMS_INLINE_ROUTINE Priority_Control _Scheduler_Node_get_priority( |
---|
73 | Scheduler_Node *node, |
---|
74 | bool *prepend_it_p |
---|
75 | ) |
---|
76 | { |
---|
77 | Priority_Control priority; |
---|
78 | bool prepend_it; |
---|
79 | |
---|
80 | #if defined(RTEMS_SMP) |
---|
81 | unsigned int seq; |
---|
82 | |
---|
83 | do { |
---|
84 | seq = _SMP_sequence_lock_Read_begin( &node->Priority.Lock ); |
---|
85 | #endif |
---|
86 | |
---|
87 | priority = node->Priority.value; |
---|
88 | prepend_it = node->Priority.prepend_it; |
---|
89 | |
---|
90 | #if defined(RTEMS_SMP) |
---|
91 | } while ( _SMP_sequence_lock_Read_retry( &node->Priority.Lock, seq ) ); |
---|
92 | #endif |
---|
93 | |
---|
94 | *prepend_it_p = prepend_it; |
---|
95 | |
---|
96 | return priority; |
---|
97 | } |
---|
98 | |
---|
99 | RTEMS_INLINE_ROUTINE void _Scheduler_Node_set_priority( |
---|
100 | Scheduler_Node *node, |
---|
101 | Priority_Control new_priority, |
---|
102 | bool prepend_it |
---|
103 | ) |
---|
104 | { |
---|
105 | #if defined(RTEMS_SMP) |
---|
106 | unsigned int seq; |
---|
107 | |
---|
108 | seq = _SMP_sequence_lock_Write_begin( &node->Priority.Lock ); |
---|
109 | #endif |
---|
110 | |
---|
111 | node->Priority.value = new_priority; |
---|
112 | node->Priority.prepend_it = prepend_it; |
---|
113 | |
---|
114 | #if defined(RTEMS_SMP) |
---|
115 | _SMP_sequence_lock_Write_end( &node->Priority.Lock, seq ); |
---|
116 | #endif |
---|
117 | } |
---|
118 | |
---|
119 | #if defined(RTEMS_SMP) |
---|
120 | RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_user( |
---|
121 | const Scheduler_Node *node |
---|
122 | ) |
---|
123 | { |
---|
124 | return node->user; |
---|
125 | } |
---|
126 | |
---|
127 | RTEMS_INLINE_ROUTINE void _Scheduler_Node_set_user( |
---|
128 | Scheduler_Node *node, |
---|
129 | Thread_Control *user |
---|
130 | ) |
---|
131 | { |
---|
132 | node->user = user; |
---|
133 | } |
---|
134 | |
---|
135 | RTEMS_INLINE_ROUTINE Thread_Control *_Scheduler_Node_get_idle( |
---|
136 | const Scheduler_Node *node |
---|
137 | ) |
---|
138 | { |
---|
139 | return node->idle; |
---|
140 | } |
---|
141 | #endif |
---|
142 | |
---|
143 | #ifdef __cplusplus |
---|
144 | } |
---|
145 | #endif /* __cplusplus */ |
---|
146 | |
---|
147 | #endif /* _RTEMS_SCORE_SCHEDULERNODEIMPL_H */ |
---|