From 5e9b32b439627068a0292370fe595220dbfc95a0 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 26 Sep 1995 19:27:15 +0000
Subject: posix support initially added

---
 cpukit/posix/include/mqueue.h | 144 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 cpukit/posix/include/mqueue.h

(limited to 'cpukit/posix/include/mqueue.h')

diff --git a/cpukit/posix/include/mqueue.h b/cpukit/posix/include/mqueue.h
new file mode 100644
index 0000000000..f40381c5f5
--- /dev/null
+++ b/cpukit/posix/include/mqueue.h
@@ -0,0 +1,144 @@
+/* mqueue.h
+ *
+ */
+
+#ifndef __POSIX_MESSAGE_QUEUE_h
+#define __POSIX_MESSAGE_QUEUE_h
+
+#include <rtems/posix/features.h>
+
+#if defined(_POSIX_MESSAGE_PASSING)
+
+#include <sys/types.h>
+
+#include <rtems/system.h>
+#include <rtems/score/object.h>
+
+/*
+ *  15.1.1 Data Structures, P1003.1b-1993, p. 271
+ */
+
+typedef Objects_Id  mqd_t;
+
+struct mq_attr {
+  long  mq_flags;     /* Message queue flags */
+  long  mq_maxmsg;    /* Maximum number of messages */
+  long  mq_msgsize;   /* Maximum message size */
+  long  mq_curmsgs;   /* Number of messages currently queued */
+};
+
+/*
+ *  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
+);
+
+/*
+ *  15.2.2 Remove a Message Queue, P1003.1b-1993, p. 276
+ */
+
+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>
+
+int mq_timedsend(
+  mqd_t                  mqdes,
+  const char            *msg_ptr,
+  size_t                 msg_len,
+  unsigned int           msg_prio,
+  const struct timespec *timeout
+);
+
+#endif /* _POSIX_TIMEOUTS */
+
+/*
+ *  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)
+
+int mq_timedreceive(                  /* XXX: should this be ssize_t */
+  mqd_t                  mqdes,
+  char                  *msg_ptr,
+  size_t                 msg_len,
+  unsigned int          *msg_prio,
+  const struct timespec *timeout
+);
+
+#endif /* _POSIX_TIMEOUTS */
+
+#if defined(_POSIX_REALTIME_SIGNALS)
+
+/*
+ *  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 */
+
+/*
+ *  15.2.7 Set Message Queue Attributes, P1003.1b-1993, p. 281
+ */
+
+int mq_setattr(
+  mqd_t                 mqdes,
+  const struct mq_attr *mqstat,
+  struct mq_attr       *omqstat
+);
+
+/*
+ *  15.2.8 Get Message Queue Attributes, P1003.1b-1993, p. 283
+ */
+
+int mq_getattr(
+  mqd_t           mqdes,
+  struct mq_attr *mqstat
+);
+
+#endif /* _POSIX_MESSAGE_PASSING */
+
+#endif
+/* end of include file */
-- 
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