/* 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; }