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