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| author | royger <royger@FreeBSD.org> | 2016-05-06 16:41:23 +0000 |
|---|---|---|
| committer | royger <royger@FreeBSD.org> | 2016-05-06 16:41:23 +0000 |
| commit | 4bf5db0a14f80296b60c436d2e67bbba00f74d01 (patch) | |
| tree | 6c5c93b09ce2ee9eb0bb3fb9491f984dcb99d7a5 /sys/sys/bitset.h | |
| parent | 0bb25b8d7b1f4524d2a9b3c950eedbafbbc63d0d (diff) | |
| download | FreeBSD-src-4bf5db0a14f80296b60c436d2e67bbba00f74d01.zip FreeBSD-src-4bf5db0a14f80296b60c436d2e67bbba00f74d01.tar.gz | |
bitset: introduce helpers to allocate a bitset at runtime
Introduce some new helpers to declare and allocate a dynamic bitset, whose
size is not a constant.
Sponsored by: Citrix Systems R&D
Reviewed by: kib jhb
Differential revision: https://reviews.freebsd.org/D6226
Diffstat (limited to 'sys/sys/bitset.h')
| -rw-r--r-- | sys/sys/bitset.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/sys/bitset.h b/sys/sys/bitset.h index f1c7bf8..723c39b 100644 --- a/sys/sys/bitset.h +++ b/sys/sys/bitset.h @@ -199,4 +199,10 @@ #define BITSET_FSET(n) \ [ 0 ... ((n) - 1) ] = (-1L) +/* + * Dynamically allocate a bitset. + */ +#define BITSET_ALLOC(_s, mt, mf) \ + malloc(__bitset_words(_s) * sizeof(long), mt, (mf)) + #endif /* !_SYS_BITSET_H_ */ |
