summaryrefslogtreecommitdiff
path: root/nuttx/lib/mqueue
diff options
context:
space:
mode:
authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2011-04-02 01:23:08 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2011-04-02 01:23:08 +0000
commit158978359318cb94de9e08900af4300bdfa5f651 (patch)
treeb09d5d3e8b437bc0a4f62ff16c32c62e73e6828d /nuttx/lib/mqueue
parente3f8a9fcb39d16acdf85d8a9a8a79a1a5b75d818 (diff)
downloadpx4-nuttx-158978359318cb94de9e08900af4300bdfa5f651.tar.gz
px4-nuttx-158978359318cb94de9e08900af4300bdfa5f651.tar.bz2
px4-nuttx-158978359318cb94de9e08900af4300bdfa5f651.zip
Move more functions out of sched/ to lib/; proxies almost build
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3453 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/lib/mqueue')
-rw-r--r--nuttx/lib/mqueue/Make.defs39
-rw-r--r--nuttx/lib/mqueue/mq_getattr.c104
-rw-r--r--nuttx/lib/mqueue/mq_setattr.c118
3 files changed, 261 insertions, 0 deletions
diff --git a/nuttx/lib/mqueue/Make.defs b/nuttx/lib/mqueue/Make.defs
new file mode 100644
index 000000000..cd2091e99
--- /dev/null
+++ b/nuttx/lib/mqueue/Make.defs
@@ -0,0 +1,39 @@
+############################################################################
+# lib/mqueue/Make.defs
+#
+# Copyright (C) 2011 Gregory Nutt. All rights reserved.
+# Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in
+# the documentation and/or other materials provided with the
+# distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+# used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+ifneq ($(CONFIG_DISABLE_MQUEUE),y)
+MQUEUE_SRCS = mq_setattr.c mq_getattr.c
+endif
+
diff --git a/nuttx/lib/mqueue/mq_getattr.c b/nuttx/lib/mqueue/mq_getattr.c
new file mode 100644
index 000000000..005ec0f24
--- /dev/null
+++ b/nuttx/lib/mqueue/mq_getattr.c
@@ -0,0 +1,104 @@
+/************************************************************************
+ * lib/mqueue/mq_getattr.c
+ *
+ * Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************/
+
+/************************************************************************
+ * Included Files
+ ************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <mqueue.h>
+#include <nuttx/mqueue.h>
+
+/************************************************************************
+ * Definitions
+ ************************************************************************/
+
+/************************************************************************
+ * Private Type Declarations
+ ************************************************************************/
+
+/************************************************************************
+ * Global Variables
+ ************************************************************************/
+
+/************************************************************************
+ * Private Variables
+ ************************************************************************/
+
+/************************************************************************
+ * Private Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Function: mq_getattr
+ *
+ * Description:
+ * This functions gets status information and attributes
+ * associated with the specified message queue.
+ *
+ * Parameters:
+ * mqdes - Message queue descriptor
+ * mq_stat - Buffer in which to return attributes
+ *
+ * Return Value:
+ * 0 (OK) if attributes provided, -1 (ERROR) otherwise.
+ *
+ * Assumptions:
+ *
+ ************************************************************************/
+
+int mq_getattr(mqd_t mqdes, struct mq_attr *mq_stat)
+{
+ int ret = ERROR;
+
+ if (mqdes && mq_stat)
+ {
+ /* Return the attributes */
+
+ mq_stat->mq_maxmsg = mqdes->msgq->maxmsgs;
+ mq_stat->mq_msgsize = mqdes->msgq->maxmsgsize;
+ mq_stat->mq_flags = mqdes->oflags;
+ mq_stat->mq_curmsgs = mqdes->msgq->nmsgs;
+
+ ret = OK;
+ }
+
+ return ret;
+}
diff --git a/nuttx/lib/mqueue/mq_setattr.c b/nuttx/lib/mqueue/mq_setattr.c
new file mode 100644
index 000000000..5d82299fe
--- /dev/null
+++ b/nuttx/lib/mqueue/mq_setattr.c
@@ -0,0 +1,118 @@
+/************************************************************************
+ * lib/mqueue/mq_setattr.c
+ *
+ * Copyright (C) 2007, 2009, 2011 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************/
+
+/************************************************************************
+ * Included Files
+ ************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <fcntl.h> /* O_NONBLOCK */
+#include <mqueue.h>
+
+#include <nuttx/mqueue.h>
+
+/************************************************************************
+ * Definitions
+ ************************************************************************/
+
+/************************************************************************
+ * Private Type Declarations
+ ************************************************************************/
+
+/************************************************************************
+ * Global Variables
+ ************************************************************************/
+
+/************************************************************************
+ * Private Variables
+ ************************************************************************/
+
+/************************************************************************
+ * Private Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Public Functions
+ ************************************************************************/
+
+/************************************************************************
+ * Function: mq_setattr
+ *
+ * Description:
+ * This function sets the attributes associated with the
+ * specified message queue "mqdes." Only the "O_NONBLOCK"
+ * bit of the "mq_flags" can be changed.
+ *
+ * If "oldstat" is non-null, mq_setattr() will store the
+ * previous message queue attributes at that location (just
+ * as would have been returned by mq_getattr()).
+ *
+ * Parameters:
+ * mqdes - Message queue descriptor
+ * mq_stat - New attributes
+ * oldstate - Old attributes
+ *
+ * Return Value:
+ * 0 (OK) if attributes are set successfully, otherwise
+ * -1 (ERROR).
+ *
+ * Assumptions:
+ *
+ ************************************************************************/
+
+int mq_setattr(mqd_t mqdes, const struct mq_attr *mq_stat,
+ struct mq_attr *oldstat)
+{
+ int ret = ERROR;
+
+ if (mqdes && mq_stat)
+ {
+ /* Return the attributes if so requested */
+
+ if (oldstat)
+ {
+ (void)mq_getattr(mqdes, oldstat);
+ }
+
+ /* Set the new value of the O_NONBLOCK flag. */
+
+ mqdes->oflags = ((mq_stat->mq_flags & O_NONBLOCK) |
+ (mqdes->oflags & (~O_NONBLOCK)));
+ ret = OK;
+ }
+
+ return ret;
+}