glibc/nptl/pthread_attr_setsigmask_internal.c

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/* Set the signal mask in a POSIX thread attribute. Internal variant.
Copyright (C) 2020 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
<https://www.gnu.org/licenses/>. */
#include <pthreadP.h>
#include <internal-signals.h>
int
__pthread_attr_setsigmask_internal (pthread_attr_t *attr,
const sigset_t *sigmask)
{
struct pthread_attr *iattr = (struct pthread_attr *) attr;
if (sigmask == NULL)
{
/* Mark the signal mask as unset if it is present. */
if (iattr->extension != NULL)
iattr->extension->sigmask_set = false;
return 0;
}
int ret = __pthread_attr_extension (iattr);
if (ret != 0)
return ret;
iattr->extension->sigmask = *sigmask;
iattr->extension->sigmask_set = true;
return 0;
}
libc_hidden_def (__pthread_attr_setsigmask_internal)