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
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