rtems_status_code rtems_message_queue_delete(
rtems_id id
)
{
register Message_queue_Control *the_message_queue;
Objects_Locations location;
the_message_queue = _Message_queue_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
_Objects_Close( &_Message_queue_Information,
&the_message_queue->Object );
_CORE_message_queue_Close(
&the_message_queue->message_queue,
#if defined(RTEMS_MULTIPROCESSING)
_Message_queue_MP_Send_object_was_deleted,
#else
NULL,
#endif
CORE_MESSAGE_QUEUE_STATUS_WAS_DELETED
);
_Message_queue_Free( the_message_queue );
#if defined(RTEMS_MULTIPROCESSING)
if ( _Attributes_Is_global( the_message_queue->attribute_set ) ) {
_Objects_MP_Close(
&_Message_queue_Information,
the_message_queue->Object.id
);
_Message_queue_MP_Send_process_packet(
MESSAGE_QUEUE_MP_ANNOUNCE_DELETE,
the_message_queue->Object.id,
0, /* Not used */
0
);
}
#endif
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
_Thread_Dispatch();
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
epos_status_code epos_message_queue_create(
epos_name name,
uint32_t count,
size_t max_message_size,
epos_attribute attribute_set,
epos_id *id
)
{
register Message_queue_Control *the_message_queue;
CORE_message_queue_Attributes the_msgq_attributes;
#if defined(RTEMS_MULTIPROCESSING)
bool is_global;
#endif
if ( !epos_is_name_valid( name ) )
return RTEMS_INVALID_NAME;
if ( !id )
return RTEMS_INVALID_ADDRESS;
#if defined(RTEMS_MULTIPROCESSING)
if ( (is_global = _Attributes_Is_global( attribute_set ) ) &&
!_System_state_Is_multiprocessing )
return RTEMS_MP_NOT_CONFIGURED;
#endif
if ( count == 0 )
return RTEMS_INVALID_NUMBER;
if ( max_message_size == 0 )
return RTEMS_INVALID_SIZE;
#if defined(RTEMS_MULTIPROCESSING)
#if 1
/*
* I am not 100% sure this should be an error.
* It seems reasonable to create a que with a large max size,
* and then just send smaller msgs from remote (or all) nodes.
*/
if ( is_global && (_MPCI_table->maximum_packet_size < max_message_size) )
return RTEMS_INVALID_SIZE;
#endif
#endif
_Thread_Disable_dispatch(); /* protects object pointer */
the_message_queue = _Message_queue_Allocate();
if ( !the_message_queue ) {
_Thread_Enable_dispatch();
return RTEMS_TOO_MANY;
}
#if defined(RTEMS_MULTIPROCESSING)
if ( is_global &&
!( _Objects_MP_Allocate_and_open( &_Message_queue_Information,
name, the_message_queue->Object.id, false ) ) ) {
_Message_queue_Free( the_message_queue );
_Thread_Enable_dispatch();
return RTEMS_TOO_MANY;
}
#endif
the_message_queue->attribute_set = attribute_set;
if (_Attributes_Is_priority( attribute_set ) )
the_msgq_attributes.discipline = CORE_MESSAGE_QUEUE_DISCIPLINES_PRIORITY;
else
the_msgq_attributes.discipline = CORE_MESSAGE_QUEUE_DISCIPLINES_FIFO;
if ( ! _CORE_message_queue_Initialize(
&the_message_queue->message_queue,
&the_msgq_attributes,
count,
max_message_size
) ) {
#if defined(RTEMS_MULTIPROCESSING)
if ( is_global )
_Objects_MP_Close(
&_Message_queue_Information, the_message_queue->Object.id);
#endif
_Message_queue_Free( the_message_queue );
_Thread_Enable_dispatch();
return RTEMS_UNSATISFIED;
}
_Objects_Open(
&_Message_queue_Information,
&the_message_queue->Object,
(Objects_Name) name
);
*id = the_message_queue->Object.id;
#if defined(RTEMS_MULTIPROCESSING)
if ( is_global )
_Message_queue_MP_Send_process_packet(
MESSAGE_QUEUE_MP_ANNOUNCE_CREATE,
the_message_queue->Object.id,
name,
0
);
#endif
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}