1 /* Set the signal mask in a POSIX thread attribute. Internal variant. 2 Copyright (C) 2020-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <pthreadP.h> 20 #include <internal-signals.h> 21 22 int __pthread_attr_setsigmask_internal(pthread_attr_t * attr,const sigset_t * sigmask)23__pthread_attr_setsigmask_internal (pthread_attr_t *attr, 24 const sigset_t *sigmask) 25 { 26 struct pthread_attr *iattr = (struct pthread_attr *) attr; 27 28 if (sigmask == NULL) 29 { 30 /* Mark the signal mask as unset if it is present. */ 31 if (iattr->extension != NULL) 32 iattr->extension->sigmask_set = false; 33 return 0; 34 } 35 36 int ret = __pthread_attr_extension (iattr); 37 if (ret != 0) 38 return ret; 39 40 iattr->extension->sigmask = *sigmask; 41 iattr->extension->sigmask_set = true; 42 43 return 0; 44 } 45 libc_hidden_def (__pthread_attr_setsigmask_internal) 46