diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-05-31 17:13:08 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2008-05-31 17:13:08 +0000 |
commit | 98a4a5029768be0c75d6d51fca4e73c98de4b7fa (patch) | |
tree | 75df8870063f23c8cb7d4d322575b6b2c7021065 /nuttx/sched/pthread_mutexattrsettype.c | |
parent | 52bbc6ee28f2ae7faef6a430e86c881376ff3bfb (diff) | |
download | px4-nuttx-98a4a5029768be0c75d6d51fca4e73c98de4b7fa.tar.gz px4-nuttx-98a4a5029768be0c75d6d51fca4e73c98de4b7fa.tar.bz2 px4-nuttx-98a4a5029768be0c75d6d51fca4e73c98de4b7fa.zip |
Add support for recursive mutexes
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@753 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/sched/pthread_mutexattrsettype.c')
-rw-r--r-- | nuttx/sched/pthread_mutexattrsettype.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/nuttx/sched/pthread_mutexattrsettype.c b/nuttx/sched/pthread_mutexattrsettype.c new file mode 100644 index 000000000..c50316c3c --- /dev/null +++ b/nuttx/sched/pthread_mutexattrsettype.c @@ -0,0 +1,100 @@ +/**************************************************************************** + * sched/pthread_mutexattrsettype.c + * + * Copyright (C) 2008 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 <pthread.h> +#include <errno.h> + +#include "pthread_internal.h" + +#ifdef CONFIG_MUTEX_TYPES + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Type Declarations + ****************************************************************************/ + +/**************************************************************************** + * Global Variables + ****************************************************************************/ + +/**************************************************************************** + * Private Variables + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: pthread_mutexattr_settype + * + * Description: + * Set the mutex type in the mutex attributes. + * + * Parameters: + * attr - The mutex attributes in which to set the mutex type. + * type - The mutex type value to set. + * + * Return Value: + * 0, if the mutex type was successfully set in 'attr', or + * EINVAL, if 'attr' is NULL or 'type' unrecognized. + * + * Assumptions: + * + ****************************************************************************/ + +int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) +{ + if (attr && pthread_mutexattr_verifytype(type) == OK) + { + attr->type = type; + return 0; + } + return EINVAL; +} + +#endif /* CONFIG_MUTEX_TYPES */ |