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/**
* @file
*
* @brief Event MP Support
* @ingroup ClassicEventMP
*/
/*
* COPYRIGHT (c) 1989-2008.
* 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.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/eventimpl.h>
#include <rtems/score/objectimpl.h>
#include <rtems/score/statesimpl.h>
RTEMS_STATIC_ASSERT(
sizeof(Event_MP_Packet) <= MP_PACKET_MINIMUM_PACKET_SIZE,
Event_MP_Packet
);
/*
* _Event_MP_Send_process_packet
*
* This subprogram is not needed since there are no process
* packets to be sent by this manager.
*
*/
rtems_status_code _Event_MP_Send_request_packet (
Event_MP_Remote_operations operation,
Objects_Id event_id,
rtems_event_set event_in
)
{
Event_MP_Packet *the_packet;
switch ( operation ) {
case EVENT_MP_SEND_REQUEST:
the_packet = _Event_MP_Get_packet();
the_packet->Prefix.the_class = MP_PACKET_EVENT;
the_packet->Prefix.length = sizeof ( Event_MP_Packet );
the_packet->Prefix.to_convert = sizeof ( Event_MP_Packet );
the_packet->operation = operation;
the_packet->Prefix.id = event_id;
the_packet->event_in = event_in;
return (rtems_status_code)
_MPCI_Send_request_packet(
_Objects_Get_node( event_id ),
&the_packet->Prefix,
STATES_READY
);
break;
case EVENT_MP_SEND_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;
}
void _Event_MP_Send_response_packet (
Event_MP_Remote_operations operation,
Thread_Control *the_thread
)
{
Event_MP_Packet *the_packet;
switch ( operation ) {
case EVENT_MP_SEND_RESPONSE:
the_packet = ( Event_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(
_Objects_Get_node( the_packet->Prefix.source_tid ),
&the_packet->Prefix
);
break;
case EVENT_MP_SEND_REQUEST:
break;
}
}
void _Event_MP_Process_packet (
rtems_packet_prefix *the_packet_prefix
)
{
Event_MP_Packet *the_packet;
Thread_Control *the_thread;
the_packet = (Event_MP_Packet *) the_packet_prefix;
switch ( the_packet->operation ) {
case EVENT_MP_SEND_REQUEST:
the_packet->Prefix.return_code = rtems_event_send(
the_packet->Prefix.id,
the_packet->event_in
);
_Event_MP_Send_response_packet(
EVENT_MP_SEND_RESPONSE,
_Thread_Executing
);
break;
case EVENT_MP_SEND_RESPONSE:
the_thread = _MPCI_Process_response( the_packet_prefix );
_MPCI_Return_packet( the_packet_prefix );
break;
}
}
/*
* _Event_MP_Send_object_was_deleted
*
* This subprogram is not needed since there are no objects
* deleted by this manager.
*
*/
/*
* _Event_MP_Send_extract_proxy
*
* This subprogram is not needed since there are no objects
* deleted by this manager.
*
*/
Event_MP_Packet *_Event_MP_Get_packet ( void )
{
return ( (Event_MP_Packet *) _MPCI_Get_packet() );
}
/* end of file */
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