diff options
Diffstat (limited to 'nptl/pthread_getschedparam.c')
-rw-r--r-- | nptl/pthread_getschedparam.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/nptl/pthread_getschedparam.c b/nptl/pthread_getschedparam.c new file mode 100644 index 0000000..3e23ffa --- /dev/null +++ b/nptl/pthread_getschedparam.c @@ -0,0 +1,51 @@ +/* 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 <string.h> +#include "pthreadP.h" +#include <lowlevellock.h> + + +int +pthread_getschedparam (thread_id, policy, param) + pthread_t thread_id; + int *policy; + struct sched_param *param; +{ + struct pthread *thread = (struct pthread *) thread_id; + + /* We have to handle cancellation in the following code since we are + locking another threads desriptor. */ + pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &thread->lock); + + lll_lock (thread->lock); + + /* The library is responsible for maintaining the values at all + times. If the user uses a interface other than + pthread_setschedparam to modify the scheduler setting it is not + the library's problem. */ + *policy = thread->schedpolicy; + memcpy (param, &thread->schedparam, sizeof (struct sched_param)); + + lll_unlock (thread->lock); + + pthread_cleanup_pop (0); + + return 0; +} |