diff options
Diffstat (limited to 'cpukit/posix/src/mqueuedeletesupp.c')
-rw-r--r-- | cpukit/posix/src/mqueuedeletesupp.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/cpukit/posix/src/mqueuedeletesupp.c b/cpukit/posix/src/mqueuedeletesupp.c new file mode 100644 index 0000000000..4c95b08c95 --- /dev/null +++ b/cpukit/posix/src/mqueuedeletesupp.c @@ -0,0 +1,82 @@ +/* + * NOTE: The structure of the routines is identical to that of POSIX + * Message_queues to leave the option of having unnamed message + * queues at a future date. They are currently not part of the + * POSIX standard but unnamed message_queues are. This is also + * the reason for the apparently unnecessary tracking of + * the process_shared attribute. [In addition to the fact that + * it would be trivial to add pshared to the mq_attr structure + * and have process private message queues.] + * + * This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open + * time. + * + * COPYRIGHT (c) 1989-2009. + * 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 <stdarg.h> + +#include <pthread.h> +#include <limits.h> +#include <errno.h> +#include <fcntl.h> +#include <mqueue.h> + +#include <rtems/system.h> +#include <rtems/score/watchdog.h> +#include <rtems/score/wkspace.h> +#include <rtems/seterr.h> +#include <rtems/posix/mqueue.h> +#include <rtems/posix/time.h> +#if defined(RTEMS_DEBUG) + #include <rtems/bspIo.h> +#endif + +/*PAGE + * + * _POSIX_Message_queue_Delete + */ + +void _POSIX_Message_queue_Delete( + POSIX_Message_queue_Control *the_mq +) +{ + if ( !the_mq->linked && !the_mq->open_count ) { + Objects_Control *the_object = &the_mq->Object; + + #if defined(RTEMS_DEBUG) + /* + * the name memory will have been freed by unlink. + */ + if ( the_object->name.name_p ) { + printk( + "POSIX MQ name (%p) not freed by unlink\n", + (void *)the_object->name.name_p + ); + _Workspace_Free( (void *)the_object->name.name_p ); + } + #endif + + _Objects_Close( &_POSIX_Message_queue_Information, the_object ); + + _CORE_message_queue_Close( + &the_mq->Message_queue, + NULL, /* no MP support */ + CORE_MESSAGE_QUEUE_STATUS_WAS_DELETED + ); + + _POSIX_Message_queue_Free( the_mq ); + + } +} |