1// SPDX-License-Identifier: LGPL-2.1
2// Definitions taken from glibc for use with older systems, same licensing.
3#ifndef _CPU_SET_SCHED_PERF_H
4#define _CPU_SET_SCHED_PERF_H
5
6#include <features.h>
7#include <sched.h>
8
9#ifndef CPU_EQUAL
10#ifndef __CPU_EQUAL_S
11#if __GNUC_PREREQ (2, 91)
12# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
13  (__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)
14#else
15# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
16  (__extension__							      \
17   ({ const __cpu_mask *__arr1 = (cpusetp1)->__bits;			      \
18      const __cpu_mask *__arr2 = (cpusetp2)->__bits;			      \
19      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
20      size_t __i;							      \
21      for (__i = 0; __i < __imax; ++__i)				      \
22	if (__arr1[__i] != __arr2[__i])					      \
23	  break;							      \
24      __i == __imax; }))
25#endif
26#endif // __CPU_EQUAL_S
27
28#define CPU_EQUAL(cpusetp1, cpusetp2) \
29  __CPU_EQUAL_S (sizeof (cpu_set_t), cpusetp1, cpusetp2)
30#endif // CPU_EQUAL
31
32#ifndef CPU_OR
33#ifndef __CPU_OP_S
34#define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
35  (__extension__							      \
36   ({ cpu_set_t *__dest = (destset);					      \
37      const __cpu_mask *__arr1 = (srcset1)->__bits;			      \
38      const __cpu_mask *__arr2 = (srcset2)->__bits;			      \
39      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \
40      size_t __i;							      \
41      for (__i = 0; __i < __imax; ++__i)				      \
42	((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i];    \
43      __dest; }))
44#endif // __CPU_OP_S
45
46#define CPU_OR(destset, srcset1, srcset2) \
47  __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, |)
48#endif // CPU_OR
49
50#endif // _CPU_SET_SCHED_PERF_H
51