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Diffstat (limited to 'nptl/pthread_attr_setschedparam.c')
-rw-r--r-- | nptl/pthread_attr_setschedparam.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/nptl/pthread_attr_setschedparam.c b/nptl/pthread_attr_setschedparam.c new file mode 100644 index 0000000000..2ffba99008 --- /dev/null +++ b/nptl/pthread_attr_setschedparam.c @@ -0,0 +1,49 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <assert.h> +#include <errno.h> +#include <string.h> +#include "pthreadP.h" + + +int +pthread_attr_setschedparam (attr, param) + pthread_attr_t *attr; + const struct sched_param *param; +{ + struct pthread_attr *iattr; + int max_prio; + int min_prio; + + assert (sizeof (*attr) >= sizeof (struct pthread_attr)); + iattr = (struct pthread_attr *) attr; + + max_prio = __sched_get_priority_max (iattr->schedpolicy); + min_prio = __sched_get_priority_min (iattr->schedpolicy); + + /* Catch invalid values. */ + if (param->sched_priority < min_prio || param->sched_priority > max_prio) + return EINVAL; + + /* Copy the new values. */ + memcpy (&iattr->schedparam, param, sizeof (struct sched_param)); + + return 0; +} |