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/**
* @file
*
* @brief POSIX Message Queues Private Private Support
*
* This include file contains all the private support information for
* POSIX Message Queues.
*
* 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) 1989-2011.
* 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.org/license/LICENSE.
*/
#ifndef _RTEMS_POSIX_MQUEUE_H
#define _RTEMS_POSIX_MQUEUE_H
#include <signal.h>
#include <mqueue.h> /* struct mq_attr */
#include <rtems/score/coremsg.h>
#include <rtems/score/object.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @defgroup POSIX_MQUEUE_P Message Queues Private Support
*
* @ingroup POSIXAPI
*
*/
/**@{**/
/*
* Data Structure used to manage a POSIX message queue
*/
typedef struct {
Objects_Control Object;
int process_shared;
bool named;
bool linked;
uint32_t open_count;
CORE_message_queue_Control Message_queue;
struct sigevent notification;
} POSIX_Message_queue_Control;
typedef struct {
Objects_Control Object;
POSIX_Message_queue_Control *Queue;
int oflag;
} POSIX_Message_queue_Control_fd;
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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