blob: 9fab5d4748abd77ee6d05ba98dd5219b5f835a81 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/**
* @file rtems/score/states.h
*
* @brief Thread Execution State Information
*
* This include file defines thread execution state information.
*/
/*
* COPYRIGHT (c) 1989-2006.
* On-Line Applications Research Corporation (OAR).
*
* 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.
*/
#ifndef _RTEMS_SCORE_STATES_H
#define _RTEMS_SCORE_STATES_H
/**
* @defgroup ScoreStates SuperCore Thread States
*
* @ingroup Score
*
* This handler encapsulates functionality which relates to the management of
* the state bitmap associated with each thread.
*/
/**@{*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* The following type defines the control block used to manage a
* thread's state.
*/
typedef uint32_t States_Control;
/*
* The following constants define the individual states which may be
* be used to compose and manipulate a thread's state.
*/
/** This macro corresponds to all states being set. */
#define STATES_ALL_SET 0xfffff
/** This macro corresponds to a task being ready. */
#define STATES_READY 0x00000
/** This macro corresponds to a task being created but not yet started. */
#define STATES_DORMANT 0x00001
/** This macro corresponds to a task being suspended. */
#define STATES_SUSPENDED 0x00002
/** This macro corresponds to a task being in an internal state transition. */
#define STATES_TRANSIENT 0x00004
/** This macro corresponds to a task which is waiting for a timeout. */
#define STATES_DELAYING 0x00008
/** This macro corresponds to a task waiting until a specific TOD. */
#define STATES_WAITING_FOR_TIME 0x00010
/** This macro corresponds to a task waiting for a variable length buffer. */
#define STATES_WAITING_FOR_BUFFER 0x00020
/** This macro corresponds to a task waiting for a fixed size segment. */
#define STATES_WAITING_FOR_SEGMENT 0x00040
/** This macro corresponds to a task waiting for a message. */
#define STATES_WAITING_FOR_MESSAGE 0x00080
/** This macro corresponds to a task waiting for an event. */
#define STATES_WAITING_FOR_EVENT 0x00100
/** This macro corresponds to a task waiting for a semaphore. */
#define STATES_WAITING_FOR_SEMAPHORE 0x00200
/** This macro corresponds to a task waiting for a mutex. */
#define STATES_WAITING_FOR_MUTEX 0x00400
/** This macro corresponds to a task waiting for a condition variable. */
#define STATES_WAITING_FOR_CONDITION_VARIABLE 0x00800
/** This macro corresponds to a task waiting for a join while exiting. */
#define STATES_WAITING_FOR_JOIN_AT_EXIT 0x01000
/** This macro corresponds to a task waiting for a reply to an MPCI request. */
#define STATES_WAITING_FOR_RPC_REPLY 0x02000
/** This macro corresponds to a task waiting for a period. */
#define STATES_WAITING_FOR_PERIOD 0x04000
/** This macro corresponds to a task waiting for a signal. */
#define STATES_WAITING_FOR_SIGNAL 0x08000
/** This macro corresponds to a task waiting for a barrier. */
#define STATES_WAITING_FOR_BARRIER 0x10000
/** This macro corresponds to a task waiting for a RWLock. */
#define STATES_WAITING_FOR_RWLOCK 0x20000
/** This macro corresponds to a task waiting for a system event. */
#define STATES_WAITING_FOR_SYSTEM_EVENT 0x40000
/** This macro corresponds to a task which is in an interruptible
* blocking state.
*/
#define STATES_INTERRUPTIBLE_BY_SIGNAL 0x10000000
/** This macro corresponds to a task waiting for a local object operation. */
#define STATES_LOCALLY_BLOCKED ( STATES_WAITING_FOR_BUFFER | \
STATES_WAITING_FOR_SEGMENT | \
STATES_WAITING_FOR_MESSAGE | \
STATES_WAITING_FOR_SEMAPHORE | \
STATES_WAITING_FOR_MUTEX | \
STATES_WAITING_FOR_CONDITION_VARIABLE | \
STATES_WAITING_FOR_JOIN_AT_EXIT | \
STATES_WAITING_FOR_SIGNAL | \
STATES_WAITING_FOR_BARRIER | \
STATES_WAITING_FOR_RWLOCK )
/** This macro corresponds to a task waiting which is blocked on
* a thread queue. */
#define STATES_WAITING_ON_THREAD_QUEUE \
( STATES_LOCALLY_BLOCKED | \
STATES_WAITING_FOR_RPC_REPLY )
/** This macro corresponds to a task waiting which is blocked. */
#define STATES_BLOCKED ( STATES_DELAYING | \
STATES_WAITING_FOR_TIME | \
STATES_WAITING_FOR_PERIOD | \
STATES_WAITING_FOR_EVENT | \
STATES_WAITING_FOR_SYSTEM_EVENT | \
STATES_WAITING_ON_THREAD_QUEUE | \
STATES_INTERRUPTIBLE_BY_SIGNAL )
#ifndef __RTEMS_APPLICATION__
#include <rtems/score/states.inl>
#endif
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of include file */
|
