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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-05-17 23:18:20 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-05-17 23:18:20 +0000 |
commit | 1dc030fe0566d327c0c0f9ab0c4bfae89a961c9d (patch) | |
tree | fc90ce2202679fca6318c756547a9adf22c14199 /cpukit/rtems/src/dpmemdelete.c | |
parent | Split Partition Manager into one routine per file. (diff) | |
download | rtems-1dc030fe0566d327c0c0f9ab0c4bfae89a961c9d.tar.bz2 |
Dual-Ported Memory Manager split into one routine per file.
Diffstat (limited to 'cpukit/rtems/src/dpmemdelete.c')
-rw-r--r-- | cpukit/rtems/src/dpmemdelete.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/cpukit/rtems/src/dpmemdelete.c b/cpukit/rtems/src/dpmemdelete.c new file mode 100644 index 0000000000..6162e0bab1 --- /dev/null +++ b/cpukit/rtems/src/dpmemdelete.c @@ -0,0 +1,62 @@ +/* + * Dual Port Memory Manager + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * 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/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( + Objects_Id id +) +{ + register Dual_ported_memory_Control *the_port; + Objects_Locations location; + + the_port = _Dual_ported_memory_Get( id, &location ); + switch ( location ) { + case OBJECTS_REMOTE: /* this error cannot be returned */ + return RTEMS_INTERNAL_ERROR; + + case OBJECTS_ERROR: + return RTEMS_INVALID_ID; + + case OBJECTS_LOCAL: + _Objects_Close( &_Dual_ported_memory_Information, &the_port->Object ); + _Dual_ported_memory_Free( the_port ); + _Thread_Enable_dispatch(); + return RTEMS_SUCCESSFUL; + } + + return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ +} |