diff options
author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-04-02 01:23:08 +0000 |
---|---|---|
committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-04-02 01:23:08 +0000 |
commit | 158978359318cb94de9e08900af4300bdfa5f651 (patch) | |
tree | b09d5d3e8b437bc0a4f62ff16c32c62e73e6828d /nuttx/lib/sched/sched_getprioritymax.c | |
parent | e3f8a9fcb39d16acdf85d8a9a8a79a1a5b75d818 (diff) | |
download | px4-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/sched/sched_getprioritymax.c')
-rw-r--r-- | nuttx/lib/sched/sched_getprioritymax.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/nuttx/lib/sched/sched_getprioritymax.c b/nuttx/lib/sched/sched_getprioritymax.c new file mode 100644 index 000000000..8be45d710 --- /dev/null +++ b/nuttx/lib/sched/sched_getprioritymax.c @@ -0,0 +1,100 @@ +/************************************************************************ + * lib/sched/sched_getprioritymax.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 <nuttx/arch.h> + +/************************************************************************ + * Definitions + ************************************************************************/ + +/************************************************************************ + * Private Type Declarations + ************************************************************************/ + +/************************************************************************ + * Global Variables + ************************************************************************/ + +/************************************************************************ + * Private Variables + ************************************************************************/ + +/************************************************************************ + * Private Function Prototypes + ************************************************************************/ + +/************************************************************************ + * Private Functions + ************************************************************************/ + +/************************************************************************ + * Public Functions + ************************************************************************/ + +/************************************************************************ + * Name: ched_get_priority_max + * + * Description: + * This function returns the value of the highest possible + * task priority for a specified scheduling policy. + * + * Inputs: + * policy - Scheduling policy requested. + * + * Return Value: + * The maximum priority value or -1 (ERROR) + * (errno is not set) + * + * Assumptions: + * + ************************************************************************/ + +int sched_get_priority_max(int policy) +{ + if (policy != SCHED_FIFO && policy != SCHED_RR) + { + return ERROR; + } + else + { + return SCHED_PRIORITY_MAX; + } +} |