diff options
Diffstat (limited to 'nptl/pthread_attr_init.c')
-rw-r--r-- | nptl/pthread_attr_init.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/nptl/pthread_attr_init.c b/nptl/pthread_attr_init.c new file mode 100644 index 0000000000..90c8dc2ede --- /dev/null +++ b/nptl/pthread_attr_init.c @@ -0,0 +1,97 @@ +/* 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 |