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| author | Rajeev Misra <rajeev.misra@gmail.com> | 2018-01-03 05:10:01 (GMT) |
|---|---|---|
| committer | David Goldblatt <davidtgoldblatt@gmail.com> | 2018-01-04 19:11:04 (GMT) |
| commit | 72bdbc35e3231db91def5f466d41778ee04d7e64 (patch) | |
| tree | 6428dd242955d395ae7bab01a05484b0727ef87a /include/jemalloc/internal/extent_structs.h | |
| parent | f47e39d11a0e7ef4201a1ac18efa7604c5152aa3 (diff) | |
| download | jemalloc-72bdbc35e3231db91def5f466d41778ee04d7e64.zip jemalloc-72bdbc35e3231db91def5f466d41778ee04d7e64.tar.gz jemalloc-72bdbc35e3231db91def5f466d41778ee04d7e64.tar.bz2 | |
extent_t bitpacking logic refactoring
Diffstat (limited to 'include/jemalloc/internal/extent_structs.h')
| -rw-r--r-- | include/jemalloc/internal/extent_structs.h | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/include/jemalloc/internal/extent_structs.h b/include/jemalloc/internal/extent_structs.h index 89b49c7..4873b9e 100644 --- a/include/jemalloc/internal/extent_structs.h +++ b/include/jemalloc/internal/extent_structs.h @@ -86,42 +86,42 @@ struct extent_s { * serial number to both resulting adjacent extents. */ uint64_t e_bits; -#define EXTENT_BITS_ARENA_SHIFT 0 -#define EXTENT_BITS_ARENA_MASK \ - (((uint64_t)(1U << MALLOCX_ARENA_BITS) - 1) << EXTENT_BITS_ARENA_SHIFT) - -#define EXTENT_BITS_SLAB_SHIFT MALLOCX_ARENA_BITS -#define EXTENT_BITS_SLAB_MASK \ - ((uint64_t)0x1U << EXTENT_BITS_SLAB_SHIFT) - -#define EXTENT_BITS_COMMITTED_SHIFT (MALLOCX_ARENA_BITS + 1) -#define EXTENT_BITS_COMMITTED_MASK \ - ((uint64_t)0x1U << EXTENT_BITS_COMMITTED_SHIFT) - -#define EXTENT_BITS_DUMPABLE_SHIFT (MALLOCX_ARENA_BITS + 2) -#define EXTENT_BITS_DUMPABLE_MASK \ - ((uint64_t)0x1U << EXTENT_BITS_DUMPABLE_SHIFT) - -#define EXTENT_BITS_ZEROED_SHIFT (MALLOCX_ARENA_BITS + 3) -#define EXTENT_BITS_ZEROED_MASK \ - ((uint64_t)0x1U << EXTENT_BITS_ZEROED_SHIFT) - -#define EXTENT_BITS_STATE_SHIFT (MALLOCX_ARENA_BITS + 4) -#define EXTENT_BITS_STATE_MASK \ - ((uint64_t)0x3U << EXTENT_BITS_STATE_SHIFT) - -#define EXTENT_BITS_SZIND_SHIFT (MALLOCX_ARENA_BITS + 6) -#define EXTENT_BITS_SZIND_MASK \ - (((uint64_t)(1U << LG_CEIL_NSIZES) - 1) << EXTENT_BITS_SZIND_SHIFT) - -#define EXTENT_BITS_NFREE_SHIFT \ - (MALLOCX_ARENA_BITS + 6 + LG_CEIL_NSIZES) -#define EXTENT_BITS_NFREE_MASK \ - ((uint64_t)((1U << (LG_SLAB_MAXREGS + 1)) - 1) << EXTENT_BITS_NFREE_SHIFT) - -#define EXTENT_BITS_SN_SHIFT \ - (MALLOCX_ARENA_BITS + 6 + LG_CEIL_NSIZES + (LG_SLAB_MAXREGS + 1)) -#define EXTENT_BITS_SN_MASK (UINT64_MAX << EXTENT_BITS_SN_SHIFT) +#define MASK(CURRENT_FIELD_WIDTH, CURRENT_FIELD_SHIFT) ((((((uint64_t)0x1U) << (CURRENT_FIELD_WIDTH)) - 1)) << (CURRENT_FIELD_SHIFT)) + +#define EXTENT_BITS_ARENA_WIDTH MALLOCX_ARENA_BITS +#define EXTENT_BITS_ARENA_SHIFT 0 +#define EXTENT_BITS_ARENA_MASK MASK(EXTENT_BITS_ARENA_WIDTH, EXTENT_BITS_ARENA_SHIFT) + +#define EXTENT_BITS_SLAB_WIDTH 1 +#define EXTENT_BITS_SLAB_SHIFT (EXTENT_BITS_ARENA_WIDTH + EXTENT_BITS_ARENA_SHIFT) +#define EXTENT_BITS_SLAB_MASK MASK(EXTENT_BITS_SLAB_WIDTH, EXTENT_BITS_SLAB_SHIFT) + +#define EXTENT_BITS_COMMITTED_WIDTH 1 +#define EXTENT_BITS_COMMITTED_SHIFT (EXTENT_BITS_SLAB_WIDTH + EXTENT_BITS_SLAB_SHIFT) +#define EXTENT_BITS_COMMITTED_MASK MASK(EXTENT_BITS_COMMITTED_WIDTH, EXTENT_BITS_COMMITTED_SHIFT) + +#define EXTENT_BITS_DUMPABLE_WIDTH 1 +#define EXTENT_BITS_DUMPABLE_SHIFT (EXTENT_BITS_COMMITTED_WIDTH + EXTENT_BITS_COMMITTED_SHIFT) +#define EXTENT_BITS_DUMPABLE_MASK MASK(EXTENT_BITS_DUMPABLE_WIDTH, EXTENT_BITS_DUMPABLE_SHIFT) + +#define EXTENT_BITS_ZEROED_WIDTH 1 +#define EXTENT_BITS_ZEROED_SHIFT (EXTENT_BITS_DUMPABLE_WIDTH + EXTENT_BITS_DUMPABLE_SHIFT) +#define EXTENT_BITS_ZEROED_MASK MASK(EXTENT_BITS_ZEROED_WIDTH, EXTENT_BITS_ZEROED_SHIFT) + +#define EXTENT_BITS_STATE_WIDTH 2 +#define EXTENT_BITS_STATE_SHIFT (EXTENT_BITS_ZEROED_WIDTH + EXTENT_BITS_ZEROED_SHIFT) +#define EXTENT_BITS_STATE_MASK MASK(EXTENT_BITS_STATE_WIDTH, EXTENT_BITS_STATE_SHIFT) + +#define EXTENT_BITS_SZIND_WIDTH LG_CEIL_NSIZES +#define EXTENT_BITS_SZIND_SHIFT (EXTENT_BITS_STATE_WIDTH + EXTENT_BITS_STATE_SHIFT) +#define EXTENT_BITS_SZIND_MASK MASK(EXTENT_BITS_SZIND_WIDTH, EXTENT_BITS_SZIND_SHIFT) + +#define EXTENT_BITS_NFREE_WIDTH (LG_SLAB_MAXREGS + 1) +#define EXTENT_BITS_NFREE_SHIFT (EXTENT_BITS_SZIND_WIDTH + EXTENT_BITS_SZIND_SHIFT) +#define EXTENT_BITS_NFREE_MASK MASK(EXTENT_BITS_NFREE_WIDTH, EXTENT_BITS_NFREE_SHIFT) + +#define EXTENT_BITS_SN_SHIFT (EXTENT_BITS_NFREE_WIDTH + EXTENT_BITS_NFREE_SHIFT) +#define EXTENT_BITS_SN_MASK (UINT64_MAX << EXTENT_BITS_SN_SHIFT) /* Pointer to the extent that this structure is responsible for. */ void *e_addr; |