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3507c6df70
* libcsupport/src/gxx_wrappers.c, posix/include/mqueue.h, posix/include/rtems/posix/semaphore.h, posix/inline/rtems/posix/barrier.inl, posix/inline/rtems/posix/key.inl, posix/inline/rtems/posix/mqueue.inl, posix/inline/rtems/posix/rwlock.inl, posix/inline/rtems/posix/semaphore.inl, posix/inline/rtems/posix/spinlock.inl, posix/inline/rtems/posix/timer.inl, posix/src/condget.c, posix/src/mqueuenametoid.c, posix/src/mutexget.c, posix/src/semaphorenametoid.c, posix/src/semopen.c, sapi/src/itronapi.c, sapi/src/posixapi.c: Make changes necessary for all tests to run on SPARC with 16-bit Ids. This required ensuring that all POSIX and compilering binding code makes a distinction between the public Id type (e.g. pthread_t, etc.) and the RTEMS Object_Id type. All POSIX Object Get routines should not take the POSIX Id type as the argument. Sixteen bit RTEMS Ids should be placed into the 32-bits reserved by the POSIX API type in a uniform manner now. This removed all assumptions that the external Id types in POSIX and ITRON are the same as the internal Object Id type.
172 lines
3.0 KiB
C
172 lines
3.0 KiB
C
/**
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* @file mqueue.h
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*/
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/*
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* COPYRIGHT (c) 1989-2008.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifndef _MQUEUE_H
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#define _MQUEUE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <unistd.h>
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#if defined(_POSIX_MESSAGE_PASSING)
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#include <sys/types.h>
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#include <rtems/system.h>
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#include <rtems/score/object.h>
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/*
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* 15.1.1 Data Structures, P1003.1b-1993, p. 271
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*/
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/**
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* Message queue id type.
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*
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* @note Use uint32_t since all POSIX Ids are 32-bit currently.
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*/
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typedef uint32_t mqd_t;
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/**
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* This is the message queue attributes structure.
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*/
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struct mq_attr {
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/** This is the message queue flags */
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long mq_flags;
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/** This is the maximum number of messages */
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long mq_maxmsg;
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/** This is the maximum message size */
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long mq_msgsize;
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/** This is the mumber of messages currently queued */
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long mq_curmsgs;
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};
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/**
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* 15.2.2 Open a Message Queue, P1003.1b-1993, p. 272
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*/
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mqd_t mq_open(
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const char *name,
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int oflag,
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...
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);
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/**
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* 15.2.2 Close a Message Queue, P1003.1b-1993, p. 275
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*/
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int mq_close(
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mqd_t mqdes
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);
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/**
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* 15.2.2 Remove a Message Queue, P1003.1b-1993, p. 276
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*/
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int mq_unlink(
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const char *name
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);
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/**
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* 15.2.4 Send a Message to a Message Queue, P1003.1b-1993, p. 277
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*
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* @note P1003.4b/D8, p. 45 adds mq_timedsend().
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*/
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int mq_send(
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mqd_t mqdes,
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const char *msg_ptr,
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size_t msg_len,
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unsigned int msg_prio
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);
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#if defined(_POSIX_TIMEOUTS)
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#include <time.h>
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int mq_timedsend(
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mqd_t mqdes,
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const char *msg_ptr,
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size_t msg_len,
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unsigned int msg_prio,
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const struct timespec *abstime
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);
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#endif /* _POSIX_TIMEOUTS */
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/*
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* 15.2.5 Receive a Message From a Message Queue, P1003.1b-1993, p. 279
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*
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* NOTE: P1003.4b/D8, p. 45 adds mq_timedreceive().
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*/
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ssize_t mq_receive(
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mqd_t mqdes,
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char *msg_ptr,
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size_t msg_len,
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unsigned int *msg_prio
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);
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#if defined(_POSIX_TIMEOUTS)
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ssize_t mq_timedreceive(
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mqd_t mqdes,
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char *msg_ptr,
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size_t msg_len,
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unsigned int *msg_prio,
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const struct timespec *abstime
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);
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#endif /* _POSIX_TIMEOUTS */
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#if defined(_POSIX_REALTIME_SIGNALS)
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/*
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* 15.2.6 Notify Process that a Message is Available on a Queue,
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* P1003.1b-1993, p. 280
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*/
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int mq_notify(
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mqd_t mqdes,
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const struct sigevent *notification
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);
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#endif /* _POSIX_REALTIME_SIGNALS */
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/*
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* 15.2.7 Set Message Queue Attributes, P1003.1b-1993, p. 281
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*/
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int mq_setattr(
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mqd_t mqdes,
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const struct mq_attr *mqstat,
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struct mq_attr *omqstat
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);
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/*
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* 15.2.8 Get Message Queue Attributes, P1003.1b-1993, p. 283
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*/
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int mq_getattr(
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mqd_t mqdes,
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struct mq_attr *mqstat
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);
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#endif /* _POSIX_MESSAGE_PASSING */
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* end of include file */
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