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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicSemaphoreMP
*
* @brief This header file provides the implementation interfaces of the
* @ref RTEMSImplClassicSemaphoreMP.
*/
/* COPYRIGHT (c) 1989-2013.
* On-Line Applications Research Corporation (OAR).
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _RTEMS_RTEMS_SEMMP_H
#define _RTEMS_RTEMS_SEMMP_H
#ifndef _RTEMS_RTEMS_SEMIMPL_H
# error "Never use <rtems/rtems/semmp.h> directly; include <rtems/rtems/semimpl.h> instead."
#endif
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup RTEMSImplClassicSemaphoreMP \
* Semaphore Manager Multiprocessing (MP) Support
*
* @ingroup RTEMSImplClassicSemaphore
*
* @brief This group contains the implementation to support the Semaphore Manager
* in multiprocessing (MP) configurations.
*
* @{
*/
/**
* The following enumerated type defines the list of
* remote semaphore operations.
*/
typedef enum {
SEMAPHORE_MP_ANNOUNCE_CREATE = 0,
SEMAPHORE_MP_ANNOUNCE_DELETE = 1,
SEMAPHORE_MP_EXTRACT_PROXY = 2,
SEMAPHORE_MP_OBTAIN_REQUEST = 3,
SEMAPHORE_MP_OBTAIN_RESPONSE = 4,
SEMAPHORE_MP_RELEASE_REQUEST = 5,
SEMAPHORE_MP_RELEASE_RESPONSE = 6
} Semaphore_MP_Remote_operations;
/**
* The following data structure defines the packet used to perform
* remote semaphore operations.
*/
typedef struct {
rtems_packet_prefix Prefix;
Semaphore_MP_Remote_operations operation;
rtems_name name;
rtems_option option_set;
Objects_Id proxy_id;
} Semaphore_MP_Packet;
static inline bool _Semaphore_MP_Is_remote( Objects_Id id )
{
return _Objects_MP_Is_remote( id, &_Semaphore_Information );
}
/**
* @brief Semaphore MP Send Process Packet
*
* This routine performs a remote procedure call so that a
* process operation can be performed on another node.
*/
void _Semaphore_MP_Send_process_packet (
Semaphore_MP_Remote_operations operation,
Objects_Id semaphore_id,
rtems_name name,
Objects_Id proxy_id
);
/**
* @brief Issues a remote rtems_semaphore_obtain() request.
*/
rtems_status_code _Semaphore_MP_Obtain(
rtems_id id,
rtems_option option_set,
rtems_interval timeout
);
/**
* @brief Issues a remote rtems_semaphore_release() request.
*/
rtems_status_code _Semaphore_MP_Release( rtems_id id );
/**
* @brief Semaphore MP Send Object was Deleted
*
* This routine is invoked indirectly by the thread queue
* when a proxy has been removed from the thread queue and
* the remote node must be informed of this.
*/
void _Semaphore_MP_Send_object_was_deleted (
Thread_Control *the_proxy,
Objects_Id mp_id
);
/**
* @brief Semaphore Core Mutex MP Support
*
* This function processes the global actions necessary for remote
* accesses to a global semaphore based on a core mutex. This function
* is called by the core.
*
* @param[in] the_thread the remote thread the semaphore was surrendered to
* @param[in] id is the id of the surrendered semaphore
*/
void _Semaphore_Core_mutex_mp_support (
Thread_Control *the_thread,
Objects_Id id
);
/**
* @brief Semaphore Core MP Support
*
* This function processes the global actions necessary for remote
* accesses to a global semaphore based on a core semaphore. This function
* is called by the core.
*
* @param[in] the_thread the remote thread the semaphore was surrendered to
* @param[in] id is the id of the surrendered semaphore
*/
void _Semaphore_Core_semaphore_mp_support (
Thread_Control *the_thread,
Objects_Id id
);
#ifdef __cplusplus
}
#endif
/**@}*/
#endif
/* end of file */
|
