diff options
Diffstat (limited to 'nuttx/lib/pthread/pthread_mutexattrsetpshared.c')
-rw-r--r-- | nuttx/lib/pthread/pthread_mutexattrsetpshared.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/nuttx/lib/pthread/pthread_mutexattrsetpshared.c b/nuttx/lib/pthread/pthread_mutexattrsetpshared.c new file mode 100644 index 000000000..752e9faa0 --- /dev/null +++ b/nuttx/lib/pthread/pthread_mutexattrsetpshared.c @@ -0,0 +1,104 @@ +/**************************************************************************** + * lib/pthread/pthread_mutexattrsetpshared.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 <pthread.h> +#include <errno.h> +#include <debug.h> + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Type Declarations + ****************************************************************************/ + +/**************************************************************************** + * Global Variables + ****************************************************************************/ + +/**************************************************************************** + * Private Variables + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Function: pthread_mutexattr_setpshared + * + * Description: + * Set pshared mutex attribute. + * + * Parameters: + * attr + * pshared + * + * Return Value: + * 0 if successful. Otherwise, an error code. + * + * Assumptions: + * + ****************************************************************************/ + +int pthread_mutexattr_setpshared(FAR pthread_mutexattr_t *attr, int pshared) +{ + int ret = OK; + + sdbg("attr=0x%p pshared=%d\n", attr, pshared); + + if (!attr || (pshared != 0 && pshared != 1)) + { + ret = EINVAL; + } + else + { + attr->pshared = pshared; + } + + sdbg("Returning %d\n", ret); + return ret; +} |