| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 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 |