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Diffstat (limited to 'cpukit/rtems/src/dpmemdelete.c')
-rw-r--r-- | cpukit/rtems/src/dpmemdelete.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/cpukit/rtems/src/dpmemdelete.c b/cpukit/rtems/src/dpmemdelete.c new file mode 100644 index 0000000000..003c27fecb --- /dev/null +++ b/cpukit/rtems/src/dpmemdelete.c @@ -0,0 +1,66 @@ +/* + * Dual Port Memory Manager + * + * COPYRIGHT (c) 1989-2007. + * 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. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <rtems/system.h> +#include <rtems/rtems/status.h> +#include <rtems/rtems/support.h> +#include <rtems/score/address.h> +#include <rtems/rtems/dpmem.h> +#include <rtems/score/object.h> +#include <rtems/score/thread.h> +#include <rtems/rtems/dpmem.h> + +/*PAGE + * + * rtems_port_delete + * + * This directive allows a thread to delete a dual-ported memory area + * specified by the dual-ported memory identifier. + * + * Input parameters: + * id - dual-ported memory area id + * + * Output parameters: + * RTEMS_SUCCESSFUL - if successful + * error code - if unsuccessful + */ + +rtems_status_code rtems_port_delete( + rtems_id id +) +{ + register Dual_ported_memory_Control *the_port; + Objects_Locations location; + + the_port = _Dual_ported_memory_Get( id, &location ); + switch ( location ) { + + case OBJECTS_LOCAL: + _Objects_Close( &_Dual_ported_memory_Information, &the_port->Object ); + _Dual_ported_memory_Free( the_port ); + _Thread_Enable_dispatch(); + return RTEMS_SUCCESSFUL; + +#if defined(RTEMS_MULTIPROCESSING) + case OBJECTS_REMOTE: /* this error cannot be returned */ +#endif + case OBJECTS_ERROR: + break; + } + + return RTEMS_INVALID_ID; +} |