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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [eventmp.c] - Rev 173
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/* * Multiprocessing Support for the Event 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: eventmp.c,v 1.2 2001-09-27 11:59:19 chris Exp $ */ #include <rtems/system.h> #include <rtems/rtems/status.h> #include <rtems/rtems/event.h> #include <rtems/score/mpci.h> #include <rtems/score/mppkt.h> #include <rtems/score/object.h> #include <rtems/rtems/options.h> #include <rtems/score/states.h> #include <rtems/score/thread.h> #include <rtems/rtems/support.h> /*PAGE * * _Event_MP_Send_process_packet * * This subprogram is not needed since there are no process * packets to be sent by this manager. * */ /*PAGE * * _Event_MP_Send_request_packet * */ 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( rtems_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; } /*PAGE * * _Event_MP_Send_response_packet * */ 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( rtems_get_node( the_packet->Prefix.source_tid ), &the_packet->Prefix ); break; case EVENT_MP_SEND_REQUEST: break; } } /*PAGE * * * _Event_MP_Process_packet * */ 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; } } /*PAGE * * _Event_MP_Send_object_was_deleted * * This subprogram is not needed since there are no objects * deleted by this manager. * */ /*PAGE * * _Event_MP_Send_extract_proxy * * This subprogram is not needed since there are no objects * deleted by this manager. * */ /*PAGE * * _Event_MP_Get_packet * */ Event_MP_Packet *_Event_MP_Get_packet ( void ) { return ( (Event_MP_Packet *) _MPCI_Get_packet() ); } /* end of file */