Files
rtems/cpukit/score/src/objectgetisr.c
Joel Sherrill a6eef8bd29 2003-09-04 Joel Sherrill <joel@OARcorp.com>
* apiext.c, chain.c, coremsg.c, coremsgbroadcast.c, coremsgclose.c,
	coremsgflush.c, coremsgflushsupp.c, coremsgflushwait.c,
	coremsginsert.c, coremsgseize.c, coremsgsubmit.c, coremutex.c,
	coremutexflush.c, coremutexseize.c, coremutexsurrender.c, coresem.c,
	coresemflush.c, coresemseize.c, coresemsurrender.c, coretod.c,
	coretodset.c, coretodtickle.c, coretodtoseconds.c, coretodvalidate.c,
	heap.c, heapallocate.c, heapextend.c, heapfree.c, heapgetinfo.c,
	heapsizeofuserarea.c, heapwalk.c, interr.c, isr.c, mpci.c, object.c,
	objectallocate.c, objectallocatebyindex.c, objectclearname.c,
	objectcomparenameraw.c, objectcomparenamestring.c,
	objectcopynameraw.c, objectcopynamestring.c,
	objectextendinformation.c, objectfree.c, objectget.c,
	objectgetbyindex.c, objectgetisr.c, objectgetnext.c,
	objectgetnoprotection.c, objectinitializeinformation.c, objectmp.c,
	objectnametoid.c, objectshrinkinformation.c, thread.c,
	threadchangepriority.c, threadclearstate.c, threadclose.c,
	threadcreateidle.c, threaddelayended.c, threaddispatch.c,
	threadevaluatemode.c, threadget.c, threadhandler.c, threadidlebody.c,
	threadinitialize.c, threadloadenv.c, threadmp.c, threadq.c,
	threadqdequeue.c, threadqdequeuefifo.c, threadqdequeuepriority.c,
	threadqenqueue.c, threadqenqueuefifo.c, threadqenqueuepriority.c,
	threadqextract.c, threadqextractfifo.c, threadqextractpriority.c,
	threadqextractwithproxy.c, threadqfirst.c, threadqfirstfifo.c,
	threadqfirstpriority.c, threadqflush.c, threadqtimeout.c,
	threadready.c, threadreset.c, threadresettimeslice.c,
	threadrestart.c, threadresume.c, threadrotatequeue.c,
	threadsetpriority.c, threadsetstate.c, threadsettransient.c,
	threadstackallocate.c, threadstackfree.c, threadstart.c,
	threadstartmultitasking.c, threadsuspend.c, threadtickletimeslice.c,
	threadyieldprocessor.c, userext.c, watchdog.c, watchdogadjust.c,
	watchdoginsert.c, watchdogremove.c, watchdogtickle.c, wkspace.c: URL
	for license changed.
2003-09-04 18:52:48 +00:00

90 lines
2.3 KiB
C

/*
* Object Handler
*
*
* 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.rtems.com/license/LICENSE.
*
* $Id$
*/
#include <rtems/system.h>
#include <rtems/score/address.h>
#include <rtems/score/chain.h>
#include <rtems/score/object.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/objectmp.h>
#endif
#include <rtems/score/thread.h>
#include <rtems/score/wkspace.h>
#include <rtems/score/sysstate.h>
#include <rtems/score/isr.h>
/*PAGE
*
* _Objects_Get_isr_disable
*
* This routine sets the object pointer for the given
* object id based on the given object information structure.
*
* Input parameters:
* information - pointer to entry in table for this class
* id - object id to search for
* location - address of where to store the location
* level - pointer to previous interrupt level
*
* Output parameters:
* returns - address of object if local
* location - one of the following:
* OBJECTS_ERROR - invalid object ID
* OBJECTS_REMOTE - remote object
* OBJECTS_LOCAL - local object
* *level - previous interrupt level
*/
Objects_Control *_Objects_Get_isr_disable(
Objects_Information *information,
Objects_Id id,
Objects_Locations *location,
ISR_Level *level_p
)
{
Objects_Control *the_object;
unsigned32 index;
ISR_Level level;
#if defined(RTEMS_MULTIPROCESSING)
index = id - information->minimum_id + 1;
#else
/* index = _Objects_Get_index( id ); */
index = id & 0x0000ffff;
/* This should work but doesn't always :( */
/* index = (unsigned16) id; */
#endif
_ISR_Disable( level );
if ( information->maximum >= index ) {
if ( (the_object = information->local_table[ index ]) != NULL ) {
*location = OBJECTS_LOCAL;
*level_p = level;
return the_object;
}
_ISR_Enable( level );
*location = OBJECTS_ERROR;
return NULL;
}
_ISR_Enable( level );
*location = OBJECTS_ERROR;
#if defined(RTEMS_MULTIPROCESSING)
_Objects_MP_Is_remote( information, id, location, &the_object );
return the_object;
#else
return NULL;
#endif
}