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-rw-r--r--nptl/pthread_attr_init.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/nptl/pthread_attr_init.c b/nptl/pthread_attr_init.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 <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include "pthreadP.h"
+
+#include <shlib-compat.h>
+
+
+struct pthread_attr *__attr_list;
+lll_lock_t __attr_list_lock = LLL_LOCK_INITIALIZER;
+
+
+int
+__pthread_attr_init_2_1 (attr)
+ pthread_attr_t *attr;
+{
+ struct pthread_attr *iattr;
+
+ /* Many elements are initialized to zero so let us do it all at
+ once. This also takes care of clearing the bytes which are not
+ internally used. */
+ memset (attr, '\0', __SIZEOF_PTHREAD_ATTR_T);
+
+ assert (sizeof (*attr) >= sizeof (struct pthread_attr));
+ iattr = (struct pthread_attr *) attr;
+
+ /* Default guard size specified by the standard. */
+ iattr->guardsize = __getpagesize ();
+
+ /* Enqueue the attributes to the list of all known variables. */
+ if (DEBUGGING_P)
+ {
+ lll_lock (__attr_list_lock);
+
+ iattr->next = __attr_list;
+ __attr_list = iattr;
+
+ lll_unlock (__attr_list_lock);
+ }
+
+ return 0;
+}
+versioned_symbol (libpthread, __pthread_attr_init_2_1, pthread_attr_init,
+ GLIBC_2_1);
+
+
+#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
+int
+__pthread_attr_init_2_0 (attr)
+ pthread_attr_t *attr;
+{
+ /* This code is specific to the old LinuxThread code which has a too
+ small pthread_attr_t definition. The struct looked like
+ this: */
+ struct old_attr
+ {
+ int detachstate;
+ int schedpolicy;
+ struct sched_param schedparam;
+ int inheritsched;
+ int scope;
+ } *iattr;
+
+ /* Many elements are initialized to zero so let us do it all at
+ once. This also takes care of clearing the bytes which are not
+ internally used. */
+ memset (attr, '\0', sizeof (struct old_attr));
+
+ iattr = (struct old_attr *) attr;
+
+ /* We cannot enqueue the attribute because that member is not in the
+ old attribute structure. */
+ return 0;
+}
+compat_symbol (libpthread, __pthread_attr_init_2_0, pthread_attr_init,
+ GLIBC_2_0);
+#endif