diff options
Diffstat (limited to 'nptl/pthread_setattr_default_np.c')
-rw-r--r-- | nptl/pthread_setattr_default_np.c | 108 |
1 files changed, 0 insertions, 108 deletions
diff --git a/nptl/pthread_setattr_default_np.c b/nptl/pthread_setattr_default_np.c deleted file mode 100644 index dd1b6fc915..0000000000 --- a/nptl/pthread_setattr_default_np.c +++ /dev/null @@ -1,108 +0,0 @@ -/* Set the default attributes to be used by pthread_create in the process. - Copyright (C) 2013-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <stdlib.h> -#include <pthreadP.h> -#include <assert.h> -#include <string.h> - - -int -pthread_setattr_default_np (const pthread_attr_t *in) -{ - const struct pthread_attr *real_in; - struct pthread_attr attrs; - int ret; - - assert (sizeof (*in) >= sizeof (struct pthread_attr)); - real_in = (struct pthread_attr *) in; - - /* Catch invalid values. */ - int policy = real_in->schedpolicy; - ret = check_sched_policy_attr (policy); - if (ret) - return ret; - - const struct sched_param *param = &real_in->schedparam; - if (param->sched_priority > 0) - { - ret = check_sched_priority_attr (param->sched_priority, policy); - if (ret) - return ret; - } - - /* stacksize == 0 is fine. It means that we don't change the current - value. */ - if (real_in->stacksize != 0) - { - ret = check_stacksize_attr (real_in->stacksize); - if (ret) - return ret; - } - - /* Having a default stack address is wrong. */ - if (real_in->flags & ATTR_FLAG_STACKADDR) - return EINVAL; - - attrs = *real_in; - - /* Now take the lock because we start writing into - __default_pthread_attr. */ - lll_lock (__default_pthread_attr_lock, LLL_PRIVATE); - - /* Free the cpuset if the input is 0. Otherwise copy in the cpuset - contents. */ - size_t cpusetsize = attrs.cpusetsize; - if (cpusetsize == 0) - { - free (__default_pthread_attr.cpuset); - __default_pthread_attr.cpuset = NULL; - } - else if (cpusetsize == __default_pthread_attr.cpusetsize) - { - attrs.cpuset = __default_pthread_attr.cpuset; - memcpy (attrs.cpuset, real_in->cpuset, cpusetsize); - } - else - { - /* This may look wrong at first sight, but it isn't. We're freeing - __default_pthread_attr.cpuset and allocating to attrs.cpuset because - we'll copy over all of attr to __default_pthread_attr later. */ - cpu_set_t *newp = realloc (__default_pthread_attr.cpuset, - cpusetsize); - - if (newp == NULL) - { - ret = ENOMEM; - goto out; - } - - attrs.cpuset = newp; - memcpy (attrs.cpuset, real_in->cpuset, cpusetsize); - } - - /* We don't want to accidentally set the default stacksize to zero. */ - if (attrs.stacksize == 0) - attrs.stacksize = __default_pthread_attr.stacksize; - __default_pthread_attr = attrs; - - out: - lll_unlock (__default_pthread_attr_lock, LLL_PRIVATE); - return ret; -} |