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Diffstat (limited to 'cpukit/posix/include/mqueue.h')
| -rw-r--r-- | cpukit/posix/include/mqueue.h | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/cpukit/posix/include/mqueue.h b/cpukit/posix/include/mqueue.h deleted file mode 100644 index 36733a4730..0000000000 --- a/cpukit/posix/include/mqueue.h +++ /dev/null @@ -1,218 +0,0 @@ -/** - * @file - * - * @brief POSIX Message Queues - * - * This file contains the definitions related to 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 _MQUEUE_H -#define _MQUEUE_H - - -#include <unistd.h> - -#if defined(_POSIX_MESSAGE_PASSING) - -#include <sys/types.h> - -#include <rtems/system.h> -#include <rtems/score/object.h> - -/** - * @defgroup POSIX_MQUEUE POSIX Message Queues - * - * @ingroup POSIXAPI - * - */ -/**@{**/ - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * 15.1.1 Data Structures, P1003.1b-1993, p. 271 - */ - -/** - * Message queue id type. - * - * NOTE: Use uint32_t since all POSIX Ids are 32-bit currently. - */ -typedef uint32_t mqd_t; - -/** - * This is the message queue attributes structure. - */ -struct mq_attr { - /** This is the message queue flags */ - long mq_flags; - /** This is the maximum number of messages */ - long mq_maxmsg; - /** This is the maximum message size */ - long mq_msgsize; - /** This is the mumber of messages currently queued */ - long mq_curmsgs; -}; - -/** - * 15.2.2 Open a Message Queue, P1003.1b-1993, p. 272 - */ -mqd_t mq_open( - const char *name, - int oflag, - ... -); - -/** - * 15.2.2 Close a Message Queue, P1003.1b-1993, p. 275 - */ -int mq_close( - mqd_t mqdes -); - -/** - * @brief Remove a message queue. - * - * 15.2.2 Remove a Message Queue, P1003.1b-1993, p. 276 - * - * 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. - */ -int mq_unlink( - const char *name -); - -/** - * 15.2.4 Send a Message to a Message Queue, P1003.1b-1993, p. 277 - * - * NOTE; P1003.4b/D8, p. 45 adds mq_timedsend(). - */ -int mq_send( - mqd_t mqdes, - const char *msg_ptr, - size_t msg_len, - unsigned int msg_prio -); - -#if defined(_POSIX_TIMEOUTS) - -#include <time.h> - -/** - * @brief Send a message to a message queue. - * - * @see mq_send() - */ -int mq_timedsend( - mqd_t mqdes, - const char *msg_ptr, - size_t msg_len, - unsigned int msg_prio, - const struct timespec *abstime -); - -#endif /* _POSIX_TIMEOUTS */ - -/** - * @brief Receive a message from a message queue. - * - * 15.2.5 Receive a Message From a Message Queue, P1003.1b-1993, p. 279 - * - * NOTE: P1003.4b/D8, p. 45 adds mq_timedreceive(). - */ -ssize_t mq_receive( - mqd_t mqdes, - char *msg_ptr, - size_t msg_len, - unsigned int *msg_prio -); - -#if defined(_POSIX_TIMEOUTS) - -ssize_t mq_timedreceive( - mqd_t mqdes, - char *__restrict msg_ptr, - size_t msg_len, - unsigned int *__restrict msg_prio, - const struct timespec *__restrict abstime -); - -#endif /* _POSIX_TIMEOUTS */ - -#if defined(_POSIX_REALTIME_SIGNALS) - -/** - * @brief Notify process that a message is available on a queue. - * - * 15.2.6 Notify Process that a Message is Available on a Queue, - * P1003.1b-1993, p. 280 - */ -int mq_notify( - mqd_t mqdes, - const struct sigevent *notification -); - -#endif /* _POSIX_REALTIME_SIGNALS */ - -/** - * @brief Set message queue attributes. - * - * 15.2.7 Set Message Queue Attributes, P1003.1b-1993, p. 281 - */ -int mq_setattr( - mqd_t mqdes, - const struct mq_attr *__restrict mqstat, - struct mq_attr *__restrict omqstat -); - -/* - * 15.2.8 Get Message Queue Attributes, P1003.1b-1993, p. 283 - */ - -int mq_getattr( - mqd_t mqdes, - struct mq_attr *mqstat -); - -/** @} */ - -#ifdef __cplusplus -} -#endif - -#endif /* _POSIX_MESSAGE_PASSING */ - -#endif -/* end of include file */ |