mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
ec41af45a6
Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
65 lines
2.2 KiB
C
65 lines
2.2 KiB
C
/* Deep copy of a pthread_attr_t object.
|
|
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 <errno.h>
|
|
#include <pthreadP.h>
|
|
#include <stdlib.h>
|
|
|
|
int
|
|
__pthread_attr_copy (pthread_attr_t *target, const pthread_attr_t *source)
|
|
{
|
|
/* Avoid overwriting *TARGET until all allocations have
|
|
succeeded. */
|
|
union pthread_attr_transparent temp;
|
|
temp.external = *source;
|
|
|
|
/* Force new allocation. This function has full ownership of temp. */
|
|
temp.internal.extension = NULL;
|
|
|
|
int ret = 0;
|
|
|
|
struct pthread_attr *isource = (struct pthread_attr *) source;
|
|
|
|
if (isource->extension != NULL)
|
|
{
|
|
/* Propagate affinity mask information. */
|
|
if (isource->extension->cpusetsize > 0)
|
|
ret = __pthread_attr_setaffinity_np (&temp.external,
|
|
isource->extension->cpusetsize,
|
|
isource->extension->cpuset);
|
|
|
|
/* Propagate the signal mask information. */
|
|
if (ret == 0 && isource->extension->sigmask_set)
|
|
ret = __pthread_attr_setsigmask_internal ((pthread_attr_t *) &temp,
|
|
&isource->extension->sigmask);
|
|
}
|
|
|
|
if (ret != 0)
|
|
{
|
|
/* Deallocate because we have ownership. */
|
|
__pthread_attr_destroy (&temp.external);
|
|
return ret;
|
|
}
|
|
|
|
/* Transfer ownership. *target is not assumed to have been
|
|
initialized. */
|
|
*target = temp.external;
|
|
return 0;
|
|
}
|
|
libc_hidden_def (__pthread_attr_copy)
|