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Diffstat (limited to 'nptl/pthread_getattr_np.c')
-rw-r--r-- | nptl/pthread_getattr_np.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/nptl/pthread_getattr_np.c b/nptl/pthread_getattr_np.c new file mode 100644 index 0000000..4e58043 --- /dev/null +++ b/nptl/pthread_getattr_np.c @@ -0,0 +1,65 @@ +/* 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_getattr_np (thread_id, attr) + pthread_t thread_id; + pthread_attr_t *attr; +{ + struct pthread *thread = (struct pthread *) thread_id; + struct pthread_attr *iattr = (struct pthread_attr *) attr; + + /* 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 thread library is responsible for keeping the values in the + thread desriptor up-to-date in case the user changes them. */ + memcpy (&iattr->schedparam, &thread->schedparam, + sizeof (struct sched_param)); + iattr->schedpolicy = thread->schedpolicy; + + /* Clear the flags work. */ + iattr->flags = thread->flags; + + /* The thread might be detached by now. */ + if (IS_DETACHED (thread)) + iattr->flags |= ATTR_FLAG_DETACHSTATE; + + /* This is the guardsize after adjusting it. */ + iattr->guardsize = thread->guardsize; + + /* The sizes are subject to alignment. */ + iattr->stacksize = thread->stackblock_size; + iattr->stackaddr = (char *) thread->stackblock + iattr->stacksize; + iattr->flags |= ATTR_FLAG_STACKADDR; + + lll_unlock (thread->lock); + + pthread_cleanup_pop (0); + + return 0; +} |