glibc/sysdeps/generic/dl-affinity.h

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/* CPU affinity handling for the dynamic linker. Stub version.
Copyright (C) 2024 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/>. */
#ifndef DL_AFFINITY_H
#define DL_AFFINITY_H
#include <errno.h>
#include <stddef.h>
/* On success, write the current CPU ID to *CPU, and the current node
ID to *NODE, and return 0. Return a negative error code on
failure. */
static inline int
_dl_getcpu (unsigned int *cpu, unsigned int *node)
{
return -ENOSYS;
}
/* On success, write CPU ID affinity bits for the current thread to
*BITS, which must be SIZE bytes long, and return the number of
bytes updated, a multiple of sizeof (unsigned long int). On
failure, return a negative error code. */
static int
_dl_getaffinity (unsigned long int *bits, size_t size)
{
return -ENOSYS;
}
/* Set the CPU affinity mask for the current thread to *BITS, using
the SIZE bytes from that array, which should be a multiple of
sizeof (unsigned long int). Return 0 on success, and a negative
error code on failure. */
static int
_dl_setaffinity (const unsigned long int *bits, size_t size)
{
return -ENOSYS;
}
#endif /* DL_AFFINITY_H */