diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-07-06 19:06:59 +0000 |
---|---|---|
committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-07-06 19:06:59 +0000 |
commit | d895fe87982a1e7a2ddb4f81112e5962324f6a99 (patch) | |
tree | 17a8a22f20c4f3bd184fb88f3e04656f8ba80641 /c/src/exec/score/src | |
parent | Format of return line changed. (diff) | |
download | rtems-d895fe87982a1e7a2ddb4f81112e5962324f6a99.tar.bz2 |
New file. Convert ID to pointer and return with interrupts -- not
dispatching -- disabled.
Diffstat (limited to 'c/src/exec/score/src')
-rw-r--r-- | c/src/exec/score/src/objectgetisr.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/c/src/exec/score/src/objectgetisr.c b/c/src/exec/score/src/objectgetisr.c new file mode 100644 index 0000000000..ea63469e12 --- /dev/null +++ b/c/src/exec/score/src/objectgetisr.c @@ -0,0 +1,83 @@ +/* + * 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.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#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; + + /* index = _Objects_Get_index( id ); */ + index = (unsigned16) id; + + _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 +} |