diff options
Diffstat (limited to '')
| -rw-r--r-- | c/src/exec/score/src/coremsgsubmit.c | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/c/src/exec/score/src/coremsgsubmit.c b/c/src/exec/score/src/coremsgsubmit.c deleted file mode 100644 index eabcb79ddf..0000000000 --- a/c/src/exec/score/src/coremsgsubmit.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * CORE Message Queue Handler - * - * DESCRIPTION: - * - * This package is the implementation of the CORE Message Queue Handler. - * This core object provides task synchronization and communication functions - * via messages passed to queue objects. - * - * 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/chain.h> -#include <rtems/score/isr.h> -#include <rtems/score/object.h> -#include <rtems/score/coremsg.h> -#include <rtems/score/states.h> -#include <rtems/score/thread.h> -#include <rtems/score/wkspace.h> -#if defined(RTEMS_MULTIPROCESSING) -#include <rtems/score/mpci.h> -#endif - -/*PAGE - * - * _CORE_message_queue_Submit - * - * This routine implements the send and urgent message functions. It - * processes a message that is to be submitted to the designated - * message queue. The message will either be processed as a - * send message which it will be inserted at the rear of the queue - * or it will be processed as an urgent message which will be inserted - * at the front of the queue. - * - * Input parameters: - * the_message_queue - message is submitted to this message queue - * buffer - pointer to message buffer - * size - size in bytes of message to send - * id - id of message queue - * api_message_queue_mp_support - api specific mp support callout - * submit_type - send or urgent message - * - * Output parameters: - * CORE_MESSAGE_QUEUE_SUCCESSFUL - if successful - * error code - if unsuccessful - */ - -CORE_message_queue_Status _CORE_message_queue_Submit( - CORE_message_queue_Control *the_message_queue, - void *buffer, - unsigned32 size, - Objects_Id id, - CORE_message_queue_API_mp_support_callout api_message_queue_mp_support, - CORE_message_queue_Submit_types submit_type, - boolean wait, - Watchdog_Interval timeout -) -{ - ISR_Level level; - CORE_message_queue_Buffer_control *the_message; - Thread_Control *the_thread; - - if ( size > the_message_queue->maximum_message_size ) { - return CORE_MESSAGE_QUEUE_STATUS_INVALID_SIZE; - } - - /* - * Is there a thread currently waiting on this message queue? - */ - - if ( the_message_queue->number_of_pending_messages == 0 ) { - the_thread = _Thread_queue_Dequeue( &the_message_queue->Wait_queue ); - if ( the_thread ) { - _CORE_message_queue_Copy_buffer( - buffer, - the_thread->Wait.return_argument, - size - ); - *(unsigned32 *)the_thread->Wait.return_argument_1 = size; - the_thread->Wait.count = submit_type; - -#if defined(RTEMS_MULTIPROCESSING) - if ( !_Objects_Is_local_id( the_thread->Object.id ) ) - (*api_message_queue_mp_support) ( the_thread, id ); -#endif - return CORE_MESSAGE_QUEUE_STATUS_SUCCESSFUL; - } - } - - /* - * No one waiting on the message queue at this time, so attempt to - * queue the message up for a future receive. - */ - - if ( the_message_queue->number_of_pending_messages < - the_message_queue->maximum_pending_messages ) { - - the_message = - _CORE_message_queue_Allocate_message_buffer( the_message_queue ); - - /* - * NOTE: If the system is consistent, this error should never occur. - */ - - if ( !the_message ) { - return CORE_MESSAGE_QUEUE_STATUS_UNSATISFIED; - } - - _CORE_message_queue_Copy_buffer( - buffer, - the_message->Contents.buffer, - size - ); - the_message->Contents.size = size; - the_message->priority = submit_type; - - _CORE_message_queue_Insert_message( - the_message_queue, - the_message, - submit_type - ); - return CORE_MESSAGE_QUEUE_STATUS_SUCCESSFUL; - } - - /* - * No message buffers were available so we may need to return an - * overflow error or block the sender until the message is placed - * on the queue. - */ - - if ( !wait ) { - return CORE_MESSAGE_QUEUE_STATUS_TOO_MANY; - } - - /* - * Do NOT block on a send if the caller is in an ISR. It is - * deadly to block in an ISR. - */ - - if ( _ISR_Is_in_progress() ) { - return CORE_MESSAGE_QUEUE_STATUS_UNSATISFIED; - } - - /* - * WARNING!! executing should NOT be used prior to this point. - * Thus the unusual choice to open a new scope and declare - * it as a variable. Doing this emphasizes how dangerous it - * would be to use this variable prior to here. - */ - - { - Thread_Control *executing = _Thread_Executing; - - _ISR_Disable( level ); - _Thread_queue_Enter_critical_section( &the_message_queue->Wait_queue ); - executing->Wait.queue = &the_message_queue->Wait_queue; - executing->Wait.id = id; - executing->Wait.return_argument = (void *)buffer; - executing->Wait.return_argument_1 = (void *)size; - executing->Wait.count = submit_type; - _ISR_Enable( level ); - - _Thread_queue_Enqueue( &the_message_queue->Wait_queue, timeout ); - } - - return CORE_MESSAGE_QUEUE_STATUS_UNSATISFIED_WAIT; -} |