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-rw-r--r--nptl/pthread_getattr_np.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/nptl/pthread_getattr_np.c b/nptl/pthread_getattr_np.c
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+/* 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;
+}