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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-11-10 16:19:12 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-11-10 16:19:12 +0000 |
commit | 0f11ac27b9b9dbdde216a700434b7fcdc47e1093 (patch) | |
tree | 65e310bdf9dd9db4886938931afdbeaa8d75aaff /nuttx/libc/mqueue | |
parent | f37278039ad4c2f0bfcfaed647b01aa70ae0b5d6 (diff) | |
download | px4-nuttx-0f11ac27b9b9dbdde216a700434b7fcdc47e1093.tar.gz px4-nuttx-0f11ac27b9b9dbdde216a700434b7fcdc47e1093.tar.bz2 px4-nuttx-0f11ac27b9b9dbdde216a700434b7fcdc47e1093.zip |
Still trying to recover directory contents
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5330 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/libc/mqueue')
-rw-r--r-- | nuttx/libc/mqueue/Make.defs | 48 | ||||
-rw-r--r-- | nuttx/libc/mqueue/mq_getattr.c | 104 | ||||
-rw-r--r-- | nuttx/libc/mqueue/mq_setattr.c | 118 |
3 files changed, 270 insertions, 0 deletions
diff --git a/nuttx/libc/mqueue/Make.defs b/nuttx/libc/mqueue/Make.defs new file mode 100644 index 000000000..40dc6c13e --- /dev/null +++ b/nuttx/libc/mqueue/Make.defs @@ -0,0 +1,48 @@ +############################################################################ +# lib/mqueue/Make.defs +# +# Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. +# Author: Gregory Nutt <gnutt@nuttx.org> +# +# 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) + +# Add the mqueue C files to the build + +CSRCS += mq_setattr.c mq_getattr.c + +# Add the mqueue directory to the build + +DEPPATH += --dep-path mqueue +VPATH += :mqueue + +endif + diff --git a/nuttx/libc/mqueue/mq_getattr.c b/nuttx/libc/mqueue/mq_getattr.c new file mode 100644 index 000000000..9c9f47fdc --- /dev/null +++ b/nuttx/libc/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 <gnutt@nuttx.org> + * + * 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/libc/mqueue/mq_setattr.c b/nuttx/libc/mqueue/mq_setattr.c new file mode 100644 index 000000000..1276d64e8 --- /dev/null +++ b/nuttx/libc/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 <gnutt@nuttx.org> + * + * 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; +} |