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[/] [or1k/] [trunk/] [rtems-20020807/] [cpukit/] [rtems/] [src/] [taskmp.c] - Blame information for rev 1765

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1 1026 ivang 
/*
2 
 *  Multiprocessing Support for the RTEMS Task Manager
3 
 *
4 
 *
5 
 *  COPYRIGHT (c) 1989-1999.
6 
 *  On-Line Applications Research Corporation (OAR).
7 
 *
8 
 *  The license and distribution terms for this file may be
9 
 *  found in the file LICENSE in this distribution or at
10 
 *  http://www.OARcorp.com/rtems/license.html.
11 
 *
12 
 *  taskmp.c,v 1.12 1999/11/17 17:50:27 joel Exp
13 
 */
14 
 
15 
#include <rtems/system.h>
16 
#include <rtems/rtems/status.h>
17 
#include <rtems/score/mpci.h>
18 
#include <rtems/score/mppkt.h>
19 
#include <rtems/score/object.h>
20 
#include <rtems/rtems/options.h>
21 
#include <rtems/rtems/tasks.h>
22 
#include <rtems/score/thread.h>
23 
#include <rtems/score/watchdog.h>
24 
#include <rtems/rtems/support.h>
25 
 
26 
/*PAGE
27 
 *
28 
 *  _RTEMS_tasks_MP_Send_process_packet
29 
 *
30 
 */
31 
 
32 
void _RTEMS_tasks_MP_Send_process_packet (
33 
  RTEMS_tasks_MP_Remote_operations operation,
34 
  Objects_Id                       task_id,
35 
  rtems_name                       name
36 
)
37 
{
38 
  RTEMS_tasks_MP_Packet *the_packet;
39 
 
40 
  switch ( operation ) {
41 
 
42 
    case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
43 
    case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
44 
 
45 
      the_packet                    = _RTEMS_tasks_MP_Get_packet();
46 
      the_packet->Prefix.the_class  = MP_PACKET_TASKS;
47 
      the_packet->Prefix.length     = sizeof ( RTEMS_tasks_MP_Packet );
48 
      the_packet->Prefix.to_convert = sizeof ( RTEMS_tasks_MP_Packet );
49 
      the_packet->operation         = operation;
50 
      the_packet->Prefix.id         = task_id;
51 
      the_packet->name              = name;
52 
 
53 
      _MPCI_Send_process_packet( MPCI_ALL_NODES, &the_packet->Prefix );
54 
      break;
55 
 
56 
    case RTEMS_TASKS_MP_SUSPEND_REQUEST:
57 
    case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
58 
    case RTEMS_TASKS_MP_RESUME_REQUEST:
59 
    case RTEMS_TASKS_MP_RESUME_RESPONSE:
60 
    case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
61 
    case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
62 
    case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
63 
    case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
64 
    case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
65 
    case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
66 
      break;
67 
  }
68 
}
69 
 
70 
/*PAGE
71 
 *
72 
 *  _RTEMS_tasks_MP_Send_request_packet
73 
 *
74 
 */
75 
 
76 
rtems_status_code _RTEMS_tasks_MP_Send_request_packet (
77 
  RTEMS_tasks_MP_Remote_operations operation,
78 
  Objects_Id                       task_id,
79 
  rtems_task_priority                 new_priority,
80 
  unsigned32                       notepad,
81 
  unsigned32                       note
82 
)
83 
{
84 
  RTEMS_tasks_MP_Packet *the_packet;
85 
 
86 
  switch ( operation ) {
87 
 
88 
    case RTEMS_TASKS_MP_SUSPEND_REQUEST:
89 
    case RTEMS_TASKS_MP_RESUME_REQUEST:
90 
    case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
91 
    case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
92 
    case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
93 
 
94 
      the_packet                    = _RTEMS_tasks_MP_Get_packet();
95 
      the_packet->Prefix.the_class  = MP_PACKET_TASKS;
96 
      the_packet->Prefix.length     = sizeof ( RTEMS_tasks_MP_Packet );
97 
      the_packet->Prefix.to_convert = sizeof ( RTEMS_tasks_MP_Packet );
98 
      the_packet->operation         = operation;
99 
      the_packet->Prefix.id         = task_id;
100 
      the_packet->the_priority      = new_priority;
101 
      the_packet->notepad           = notepad;
102 
      the_packet->note              = note;
103 
 
104 
      return _MPCI_Send_request_packet(
105 
        rtems_get_node( task_id ),
106 
        &the_packet->Prefix,
107 
        STATES_READY     /* Not used */
108 
      );
109 
      break;
110 
 
111 
    case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
112 
    case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
113 
    case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
114 
    case RTEMS_TASKS_MP_RESUME_RESPONSE:
115 
    case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
116 
    case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
117 
    case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
118 
      break;
119 
 
120 
  }
121 
  /*
122 
   *  The following line is included to satisfy compilers which
123 
   *  produce warnings when a function does not end with a return.
124 
   */
125 
  return RTEMS_SUCCESSFUL;
126 
}
127 
 
128 
/*PAGE
129 
 *
130 
 *  _RTEMS_tasks_MP_Send_response_packet
131 
 *
132 
 */
133 
 
134 
void _RTEMS_tasks_MP_Send_response_packet (
135 
  RTEMS_tasks_MP_Remote_operations  operation,
136 
  Thread_Control                   *the_thread
137 
)
138 
{
139 
  RTEMS_tasks_MP_Packet *the_packet;
140 
 
141 
  switch ( operation ) {
142 
 
143 
    case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
144 
    case RTEMS_TASKS_MP_RESUME_RESPONSE:
145 
    case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
146 
    case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
147 
    case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
148 
 
149 
      the_packet = (RTEMS_tasks_MP_Packet *) the_thread->receive_packet;
150 
 
151 
/*
152 
 *  The packet being returned already contains the class, length, and
153 
 *  to_convert fields, therefore they are not set in this routine.
154 
 */
155 
      the_packet->operation    = operation;
156 
      the_packet->Prefix.id    = the_packet->Prefix.source_tid;
157 
 
158 
      _MPCI_Send_response_packet(
159 
        rtems_get_node( the_packet->Prefix.source_tid ),
160 
        &the_packet->Prefix
161 
      );
162 
      break;
163 
 
164 
    case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
165 
    case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
166 
    case RTEMS_TASKS_MP_SUSPEND_REQUEST:
167 
    case RTEMS_TASKS_MP_RESUME_REQUEST:
168 
    case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
169 
    case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
170 
    case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
171 
      break;
172 
 
173 
  }
174 
}
175 
 
176 
/*PAGE
177 
 *
178 
 *
179 
 *  _RTEMS_tasks_MP_Process_packet
180 
 *
181 
 */
182 
 
183 
void _RTEMS_tasks_MP_Process_packet (
184 
  rtems_packet_prefix  *the_packet_prefix
185 
)
186 
{
187 
  RTEMS_tasks_MP_Packet *the_packet;
188 
  Thread_Control   *the_thread;
189 
  boolean           ignored;
190 
 
191 
  the_packet = (RTEMS_tasks_MP_Packet *) the_packet_prefix;
192 
 
193 
  switch ( the_packet->operation ) {
194 
 
195 
    case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
196 
 
197 
      ignored = _Objects_MP_Allocate_and_open(
198 
                  &_RTEMS_tasks_Information,
199 
                  the_packet->name,
200 
                  the_packet->Prefix.id,
201 
                  TRUE
202 
                );
203 
 
204 
      _MPCI_Return_packet( the_packet_prefix );
205 
      break;
206 
 
207 
    case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
208 
 
209 
      _Objects_MP_Close( &_RTEMS_tasks_Information, the_packet->Prefix.id );
210 
 
211 
      _MPCI_Return_packet( the_packet_prefix );
212 
      break;
213 
 
214 
    case RTEMS_TASKS_MP_SUSPEND_REQUEST:
215 
 
216 
      the_packet->Prefix.return_code = rtems_task_suspend(
217 
        the_packet->Prefix.id
218 
      );
219 
 
220 
      _RTEMS_tasks_MP_Send_response_packet(
221 
        RTEMS_TASKS_MP_SUSPEND_RESPONSE,
222 
        _Thread_Executing
223 
      );
224 
      break;
225 
 
226 
    case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
227 
    case RTEMS_TASKS_MP_RESUME_RESPONSE:
228 
    case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
229 
 
230 
      the_thread = _MPCI_Process_response( the_packet_prefix );
231 
 
232 
      _MPCI_Return_packet( the_packet_prefix );
233 
      break;
234 
 
235 
    case RTEMS_TASKS_MP_RESUME_REQUEST:
236 
 
237 
      the_packet->Prefix.return_code = rtems_task_resume(
238 
        the_packet->Prefix.id
239 
      );
240 
 
241 
      _RTEMS_tasks_MP_Send_response_packet(
242 
        RTEMS_TASKS_MP_RESUME_RESPONSE,
243 
        _Thread_Executing
244 
      );
245 
      break;
246 
 
247 
    case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
248 
 
249 
      the_packet->Prefix.return_code = rtems_task_set_priority(
250 
        the_packet->Prefix.id,
251 
        the_packet->the_priority,
252 
        &the_packet->the_priority
253 
      );
254 
 
255 
      _RTEMS_tasks_MP_Send_response_packet(
256 
        RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE,
257 
        _Thread_Executing
258 
      );
259 
      break;
260 
 
261 
    case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
262 
 
263 
      the_thread = _MPCI_Process_response( the_packet_prefix );
264 
 
265 
      *(rtems_task_priority *)the_thread->Wait.return_argument =
266 
                                               the_packet->the_priority;
267 
 
268 
      _MPCI_Return_packet( the_packet_prefix );
269 
      break;
270 
 
271 
    case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
272 
 
273 
      the_packet->Prefix.return_code = rtems_task_get_note(
274 
        the_packet->Prefix.id,
275 
        the_packet->notepad,
276 
        &the_packet->note
277 
      );
278 
 
279 
      _RTEMS_tasks_MP_Send_response_packet(
280 
        RTEMS_TASKS_MP_GET_NOTE_RESPONSE,
281 
        _Thread_Executing
282 
      );
283 
      break;
284 
 
285 
    case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
286 
 
287 
      the_thread = _MPCI_Process_response( the_packet_prefix );
288 
 
289 
      *(unsigned32 *)the_thread->Wait.return_argument = the_packet->note;
290 
 
291 
      _MPCI_Return_packet( the_packet_prefix );
292 
      break;
293 
 
294 
    case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
295 
 
296 
      the_packet->Prefix.return_code = rtems_task_set_note(
297 
        the_packet->Prefix.id,
298 
        the_packet->notepad,
299 
        the_packet->note
300 
      );
301 
 
302 
      _RTEMS_tasks_MP_Send_response_packet(
303 
        RTEMS_TASKS_MP_SET_NOTE_RESPONSE,
304 
        _Thread_Executing
305 
      );
306 
      break;
307 
  }
308 
}
309 
 
310 
/*PAGE
311 
 *
312 
 *  _RTEMS_tasks_MP_Send_object_was_deleted
313 
 *
314 
 *  This routine is not neededby the Tasks since a task
315 
 *  cannot be globally deleted.
316 
 *
317 
 */
318 
 
319 
/*PAGE
320 
 *
321 
 *  _RTEMS_tasks_MP_Send_extract_proxy
322 
 *
323 
 *  This routine is not neededby the Tasks since a task
324 
 *  cannot be globally deleted.
325 
 *
326 
 */
327 
 
328 
/*PAGE
329 
 *
330 
 *  _RTEMS_tasks_MP_Get_packet
331 
 *
332 
 */
333 
 
334 
RTEMS_tasks_MP_Packet *_RTEMS_tasks_MP_Get_packet ( void )
335 
{
336 
  return (RTEMS_tasks_MP_Packet *) _MPCI_Get_packet();
337 
}
338 
 
339 
/* end of file */

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