summaryrefslogtreecommitdiffstats
path: root/cpukit/rtems/include/rtems/rtems/regionmp.h
blob: 0743f7b05748045c216982ee228532f75ffdca73 (plain)
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
/*  regionmp.h
 *
 *  This include file contains all the constants and structures associated
 *  with the Multiprocessing Support in the Region Manager.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  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.OARcorp.com/rtems/license.html.
 *
 *  $Id$
 */

#ifndef __RTEMS_REGION_MP_h
#define __RTEMS_REGION_MP_h

#ifdef __cplusplus
extern "C" {
#endif

#include <rtems/score/mppkt.h>
#include <rtems/score/object.h>
#include <rtems/score/thread.h>

#include <rtems/rtems/options.h>
#include <rtems/rtems/region.h>

/*
 *  The following enumerated type defines the list of
 *  remote region operations.
 */

typedef enum {
  REGION_MP_ANNOUNCE_CREATE         =  0,
  REGION_MP_ANNOUNCE_DELETE         =  1,
  REGION_MP_EXTRACT_PROXY           =  2,
  REGION_MP_GET_SEGMENT_REQUEST     =  3,
  REGION_MP_GET_SEGMENT_RESPONSE    =  4,
  REGION_MP_RETURN_SEGMENT_REQUEST  =  5,
  REGION_MP_RETURN_SEGMENT_RESPONSE =  6
}   Region_MP_Remote_operations;

/*
 *  The following data structure defines the packet used to perform
 *  remote region operations.
 */

typedef struct {
  rtems_packet_prefix          Prefix;
  Region_MP_Remote_operations  operation;
  rtems_name                   name;
  rtems_option                 option_set;
  unsigned32                   size;
  Objects_Id                   proxy_id;
  void                        *segment;
}   Region_MP_Packet;

/*
 *  _Region_MP_Send_process_packet
 *
 *  DESCRIPTION:
 *
 *  This routine performs a remote procedure call so that a
 *  process operation can be performed on another node.
 */

void _Region_MP_Send_process_packet (
  Region_MP_Remote_operations operation,
  Objects_Id                  region_id,
  rtems_name                  name,
  Objects_Id                  proxy_id
);

/*
 *  _Region_MP_Send_request_packet
 *
 *  DESCRIPTION:
 *
 *  This routine performs a remote procedure call so that a
 *  directive operation can be initiated on another node.
 */

rtems_status_code _Region_MP_Send_request_packet (
  Region_MP_Remote_operations  operation,
  Objects_Id                   region_id,
  void                        *segment,
  unsigned32                   size,
  rtems_option                 option_set,
  rtems_interval               timeout
);

/*
 *  _Region_MP_Send_response_packet
 *
 *  DESCRIPTION:
 *
 *  This routine performs a remote procedure call so that a
 *  directive can be performed on another node.
 */

void _Region_MP_Send_response_packet (
  Region_MP_Remote_operations  operation,
  Objects_Id                   region_id,
  Thread_Control              *the_thread
);

/*
 *
 *  _Region_MP_Process_packet
 *
 *  DESCRIPTION:
 *
 *  This routine performs the actions specific to this package for
 *  the request from another node.
 */

void _Region_MP_Process_packet (
  rtems_packet_prefix *the_packet_prefix
);

/*
 *  _Region_MP_Send_object_was_deleted
 *
 *  DESCRIPTION:
 *
 *  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.
 *
 *  This routine is not needed by the Region since a region
 *  cannot be deleted when segments are in use.
 */

/*
 *  _Region_MP_Send_extract_proxy
 *
 *  DESCRIPTION:
 *
 *  This routine is invoked when a task is deleted and it
 *  has a proxy which must be removed from a thread queue and
 *  the remote node must be informed of this.
 */

void _Region_MP_Send_extract_proxy (
  Thread_Control *the_thread
);

/*
 *  _Region_MP_Get_packet
 *
 *  DESCRIPTION:
 *
 *  This function is used to obtain a region mp packet.
 */

Region_MP_Packet *_Region_MP_Get_packet ( void );

#ifdef __cplusplus
}
#endif

#endif
/* end of file */