| /* Copyright (C) 2002-2018 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <pthreadP.h> |
| #include <futex-internal.h> |
| |
| |
| int |
| pthread_mutexattr_setpshared (pthread_mutexattr_t *attr, int pshared) |
| { |
| struct pthread_mutexattr *iattr; |
| |
| int err = futex_supports_pshared (pshared); |
| if (err != 0) |
| return err; |
| |
| iattr = (struct pthread_mutexattr *) attr; |
| |
| if (pshared == PTHREAD_PROCESS_PRIVATE) |
| iattr->mutexkind &= ~PTHREAD_MUTEXATTR_FLAG_PSHARED; |
| else |
| iattr->mutexkind |= PTHREAD_MUTEXATTR_FLAG_PSHARED; |
| |
| return 0; |
| } |
