/*
* Multiprocessing Support for the RTEMS Task 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.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/score/mpci.h>
#include <rtems/score/mppkt.h>
#include <rtems/score/object.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/tasks.h>
#include <rtems/score/thread.h>
#include <rtems/score/watchdog.h>
#include <rtems/rtems/support.h>
/*PAGE
*
* _RTEMS_tasks_MP_Send_process_packet
*
*/
void _RTEMS_tasks_MP_Send_process_packet (
RTEMS_tasks_MP_Remote_operations operation,
Objects_Id task_id,
rtems_name name
)
{
RTEMS_tasks_MP_Packet *the_packet;
switch ( operation ) {
case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
the_packet = _RTEMS_tasks_MP_Get_packet();
the_packet->Prefix.the_class = MP_PACKET_TASKS;
the_packet->Prefix.length = sizeof ( RTEMS_tasks_MP_Packet );
the_packet->Prefix.to_convert = sizeof ( RTEMS_tasks_MP_Packet );
the_packet->operation = operation;
the_packet->Prefix.id = task_id;
the_packet->name = name;
_MPCI_Send_process_packet( MPCI_ALL_NODES, &the_packet->Prefix );
break;
case RTEMS_TASKS_MP_SUSPEND_REQUEST:
case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
case RTEMS_TASKS_MP_RESUME_REQUEST:
case RTEMS_TASKS_MP_RESUME_RESPONSE:
case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
break;
}
}
/*PAGE
*
* _RTEMS_tasks_MP_Send_request_packet
*
*/
rtems_status_code _RTEMS_tasks_MP_Send_request_packet (
RTEMS_tasks_MP_Remote_operations operation,
Objects_Id task_id,
rtems_task_priority new_priority,
unsigned32 notepad,
unsigned32 note
)
{
RTEMS_tasks_MP_Packet *the_packet;
switch ( operation ) {
case RTEMS_TASKS_MP_SUSPEND_REQUEST:
case RTEMS_TASKS_MP_RESUME_REQUEST:
case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
the_packet = _RTEMS_tasks_MP_Get_packet();
the_packet->Prefix.the_class = MP_PACKET_TASKS;
the_packet->Prefix.length = sizeof ( RTEMS_tasks_MP_Packet );
the_packet->Prefix.to_convert = sizeof ( RTEMS_tasks_MP_Packet );
the_packet->operation = operation;
the_packet->Prefix.id = task_id;
the_packet->the_priority = new_priority;
the_packet->notepad = notepad;
the_packet->note = note;
return _MPCI_Send_request_packet(
rtems_get_node( task_id ),
&the_packet->Prefix,
STATES_READY /* Not used */
);
break;
case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
case RTEMS_TASKS_MP_RESUME_RESPONSE:
case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
break;
}
/*
* The following line is included to satisfy compilers which
* produce warnings when a function does not end with a return.
*/
return RTEMS_SUCCESSFUL;
}
/*PAGE
*
* _RTEMS_tasks_MP_Send_response_packet
*
*/
void _RTEMS_tasks_MP_Send_response_packet (
RTEMS_tasks_MP_Remote_operations operation,
Thread_Control *the_thread
)
{
RTEMS_tasks_MP_Packet *the_packet;
switch ( operation ) {
case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
case RTEMS_TASKS_MP_RESUME_RESPONSE:
case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
the_packet = (RTEMS_tasks_MP_Packet *) the_thread->receive_packet;
/*
* The packet being returned already contains the class, length, and
* to_convert fields, therefore they are not set in this routine.
*/
the_packet->operation = operation;
the_packet->Prefix.id = the_packet->Prefix.source_tid;
_MPCI_Send_response_packet(
rtems_get_node( the_packet->Prefix.source_tid ),
&the_packet->Prefix
);
break;
case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
case RTEMS_TASKS_MP_SUSPEND_REQUEST:
case RTEMS_TASKS_MP_RESUME_REQUEST:
case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
break;
}
}
/*PAGE
*
*
* _RTEMS_tasks_MP_Process_packet
*
*/
void _RTEMS_tasks_MP_Process_packet (
rtems_packet_prefix *the_packet_prefix
)
{
RTEMS_tasks_MP_Packet *the_packet;
Thread_Control *the_thread;
boolean ignored;
the_packet = (RTEMS_tasks_MP_Packet *) the_packet_prefix;
switch ( the_packet->operation ) {
case RTEMS_TASKS_MP_ANNOUNCE_CREATE:
ignored = _Objects_MP_Allocate_and_open(
&_RTEMS_tasks_Information,
the_packet->name,
the_packet->Prefix.id,
TRUE
);
_MPCI_Return_packet( the_packet_prefix );
break;
case RTEMS_TASKS_MP_ANNOUNCE_DELETE:
_Objects_MP_Close( &_RTEMS_tasks_Information, the_packet->Prefix.id );
_MPCI_Return_packet( the_packet_prefix );
break;
case RTEMS_TASKS_MP_SUSPEND_REQUEST:
the_packet->Prefix.return_code = rtems_task_suspend(
the_packet->Prefix.id
);
_RTEMS_tasks_MP_Send_response_packet(
RTEMS_TASKS_MP_SUSPEND_RESPONSE,
_Thread_Executing
);
break;
case RTEMS_TASKS_MP_SUSPEND_RESPONSE:
case RTEMS_TASKS_MP_RESUME_RESPONSE:
case RTEMS_TASKS_MP_SET_NOTE_RESPONSE:
the_thread = _MPCI_Process_response( the_packet_prefix );
_MPCI_Return_packet( the_packet_prefix );
break;
case RTEMS_TASKS_MP_RESUME_REQUEST:
the_packet->Prefix.return_code = rtems_task_resume(
the_packet->Prefix.id
);
_RTEMS_tasks_MP_Send_response_packet(
RTEMS_TASKS_MP_RESUME_RESPONSE,
_Thread_Executing
);
break;
case RTEMS_TASKS_MP_SET_PRIORITY_REQUEST:
the_packet->Prefix.return_code = rtems_task_set_priority(
the_packet->Prefix.id,
the_packet->the_priority,
&the_packet->the_priority
);
_RTEMS_tasks_MP_Send_response_packet(
RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE,
_Thread_Executing
);
break;
case RTEMS_TASKS_MP_SET_PRIORITY_RESPONSE:
the_thread = _MPCI_Process_response( the_packet_prefix );
*(rtems_task_priority *)the_thread->Wait.return_argument =
the_packet->the_priority;
_MPCI_Return_packet( the_packet_prefix );
break;
case RTEMS_TASKS_MP_GET_NOTE_REQUEST:
the_packet->Prefix.return_code = rtems_task_get_note(
the_packet->Prefix.id,
the_packet->notepad,
&the_packet->note
);
_RTEMS_tasks_MP_Send_response_packet(
RTEMS_TASKS_MP_GET_NOTE_RESPONSE,
_Thread_Executing
);
break;
case RTEMS_TASKS_MP_GET_NOTE_RESPONSE:
the_thread = _MPCI_Process_response( the_packet_prefix );
*(unsigned32 *)the_thread->Wait.return_argument = the_packet->note;
_MPCI_Return_packet( the_packet_prefix );
break;
case RTEMS_TASKS_MP_SET_NOTE_REQUEST:
the_packet->Prefix.return_code = rtems_task_set_note(
the_packet->Prefix.id,
the_packet->notepad,
the_packet->note
);
_RTEMS_tasks_MP_Send_response_packet(
RTEMS_TASKS_MP_SET_NOTE_RESPONSE,
_Thread_Executing
);
break;
}
}
/*PAGE
*
* _RTEMS_tasks_MP_Send_object_was_deleted
*
* This routine is not neededby the Tasks since a task
* cannot be globally deleted.
*
*/
/*PAGE
*
* _RTEMS_tasks_MP_Send_extract_proxy
*
* This routine is not neededby the Tasks since a task
* cannot be globally deleted.
*
*/
/*PAGE
*
* _RTEMS_tasks_MP_Get_packet
*
*/
RTEMS_tasks_MP_Packet *_RTEMS_tasks_MP_Get_packet ( void )
{
return (RTEMS_tasks_MP_Packet *) _MPCI_Get_packet();
}
/* end of file */
