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author | px4dev <px4@purgatory.org> | 2013-01-23 18:58:19 -0800 |
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committer | px4dev <px4@purgatory.org> | 2013-01-23 18:58:19 -0800 |
commit | dc88dd0abb440b070e87337a7da6fd7a4c39311c (patch) | |
tree | 00260c9b8b5d6f20983f1ffbe211c39c87bd2b85 /nuttx/libc/spawn/lib_psa_setschedparam.c | |
parent | d8a013f8720e81afb637b8206fbe521ccb43ac8f (diff) | |
parent | 1ce1d4460b1c7884490118ea356bf61ffbd31163 (diff) | |
download | px4-firmware-dc88dd0abb440b070e87337a7da6fd7a4c39311c.tar.gz px4-firmware-dc88dd0abb440b070e87337a7da6fd7a4c39311c.tar.bz2 px4-firmware-dc88dd0abb440b070e87337a7da6fd7a4c39311c.zip |
Merge branch 'master' into px4io-i2c
Diffstat (limited to 'nuttx/libc/spawn/lib_psa_setschedparam.c')
-rw-r--r-- | nuttx/libc/spawn/lib_psa_setschedparam.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/nuttx/libc/spawn/lib_psa_setschedparam.c b/nuttx/libc/spawn/lib_psa_setschedparam.c new file mode 100644 index 000000000..5e992e8a9 --- /dev/null +++ b/nuttx/libc/spawn/lib_psa_setschedparam.c @@ -0,0 +1,74 @@ +/**************************************************************************** + * libc/string/lib_psa_setschedparam.c + * + * Copyright (C) 2013 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 <sched.h> +#include <spawn.h> +#include <assert.h> + +/**************************************************************************** + * Global Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: posix_spawnattr_setschedparam + * + * Description: + * The posix_spawnattr_setschedparam() function shall set the spawn- + * schedparam attribute in an initialized attributes object referenced + * by attr. + * + * Input Parameters: + * attr - The address spawn attributes to be used. + * param - The new sched_priority to set. + * + * Returned Value: + * On success, these functions return 0; on failure they return an error + * number from <errno.h>. + * + ****************************************************************************/ + +int posix_spawnattr_setschedparam(FAR posix_spawnattr_t *attr, + FAR const struct sched_param *param) +{ + DEBUGASSERT(attr && param && (unsigned)param->sched_priority <= 0xff); + attr->priority = (uint8_t)param->sched_priority; + return OK; +} |