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authorJoel Sherrill <joel.sherrill@OARcorp.com>2000-07-06 19:06:59 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2000-07-06 19:06:59 +0000
commitd895fe87982a1e7a2ddb4f81112e5962324f6a99 (patch)
tree17a8a22f20c4f3bd184fb88f3e04656f8ba80641 /cpukit
parent42ed30047bdc1994118c4966f09affe66d53c3e0 (diff)
downloadrtems-d895fe87982a1e7a2ddb4f81112e5962324f6a99.tar.bz2
New file. Convert ID to pointer and return with interrupts -- not
dispatching -- disabled.
Diffstat (limited to 'cpukit')
-rw-r--r--cpukit/score/src/objectgetisr.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/cpukit/score/src/objectgetisr.c b/cpukit/score/src/objectgetisr.c
new file mode 100644
index 0000000000..ea63469e12
--- /dev/null
+++ b/cpukit/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
+}