diff options
Diffstat (limited to 'src/vppinfra/bitmap.h')
| -rw-r--r-- | src/vppinfra/bitmap.h | 61 |
1 files changed, 47 insertions, 14 deletions
diff --git a/src/vppinfra/bitmap.h b/src/vppinfra/bitmap.h index 574f4c1b0a8..d6dfe86da0b 100644 --- a/src/vppinfra/bitmap.h +++ b/src/vppinfra/bitmap.h @@ -533,8 +533,12 @@ clib_bitmap_##name (uword * ai, uword * bi) \ } /* ALU functions: */ +/* *INDENT-OFF* */ _(and, a = a & b, 1) -_(andnot, a = a & ~b, 1) _(or, a = a | b, 0) _(xor, a = a ^ b, 1) +_(andnot, a = a & ~b, 1) +_(or, a = a | b, 0) +_(xor, a = a ^ b, 1) +/* *INDENT-ON* */ #undef _ /** Logical operator across two bitmaps which duplicates the first bitmap @@ -542,8 +546,7 @@ _(andnot, a = a & ~b, 1) _(or, a = a | b, 0) _(xor, a = a ^ b, 1) @param bi - pointer to the source bitmap @returns aiDup = ai and bi. Neither ai nor bi are modified */ - always_inline uword * - clib_bitmap_dup_and (uword * ai, uword * bi); +always_inline uword *clib_bitmap_dup_and (uword * ai, uword * bi); /** Logical operator across two bitmaps which duplicates the first bitmap @@ -551,8 +554,7 @@ _(andnot, a = a & ~b, 1) _(or, a = a | b, 0) _(xor, a = a ^ b, 1) @param bi - pointer to the source bitmap @returns aiDup = ai & ~bi. Neither ai nor bi are modified */ - always_inline uword * - clib_bitmap_dup_andnot (uword * ai, uword * bi); +always_inline uword *clib_bitmap_dup_andnot (uword * ai, uword * bi); /** Logical operator across two bitmaps which duplicates the first bitmap @@ -560,8 +562,7 @@ _(andnot, a = a & ~b, 1) _(or, a = a | b, 0) _(xor, a = a ^ b, 1) @param bi - pointer to the source bitmap @returns aiDup = ai or bi. Neither ai nor bi are modified */ - always_inline uword * - clib_bitmap_dup_or (uword * ai, uword * bi); +always_inline uword *clib_bitmap_dup_or (uword * ai, uword * bi); /** Logical operator across two bitmaps which duplicates the first bitmap @@ -569,22 +570,23 @@ _(andnot, a = a & ~b, 1) _(or, a = a | b, 0) _(xor, a = a ^ b, 1) @param bi - pointer to the source bitmap @returns aiDup = ai xor bi. Neither ai nor bi are modified */ - always_inline uword * - clib_bitmap_dup_xor (uword * ai, uword * bi); +always_inline uword *clib_bitmap_dup_xor (uword * ai, uword * bi); #define _(name) \ always_inline uword * \ clib_bitmap_dup_##name (uword * ai, uword * bi) \ { return clib_bitmap_##name (clib_bitmap_dup (ai), bi); } +/* *INDENT-OFF* */ _(and); _(andnot); _(or); _(xor); - +/* *INDENT-ON* */ #undef _ -/* ALU function definition macro for functions taking one bitmap and an immediate. */ +/* ALU function definition macro for functions taking one bitmap and an + * immediate. */ #define _(name, body, check_zero) \ always_inline uword * \ clib_bitmap_##name (uword * ai, uword i) \ @@ -603,17 +605,48 @@ clib_bitmap_##name (uword * ai, uword i) \ } /* ALU functions immediate: */ +/* *INDENT-OFF* */ _(andi, a = a & b, 1) -_(andnoti, a = a & ~b, 1) _(ori, a = a | b, 0) _(xori, a = a ^ b, 1) +_(andnoti, a = a & ~b, 1) +_(ori, a = a | b, 0) +_(xori, a = a ^ b, 1) +/* *INDENT-ON* */ #undef _ + +/* ALU function definition macro for functions taking one bitmap and an + * immediate. No tail trimming */ +#define _(name, body) \ +always_inline uword * \ +clib_bitmap_##name##_notrim (uword * ai, uword i) \ +{ \ + uword i0 = i / BITS (ai[0]); \ + uword i1 = i % BITS (ai[0]); \ + uword a, b; \ + clib_bitmap_vec_validate (ai, i0); \ + a = ai[i0]; \ + b = (uword) 1 << i1; \ + do { body; } while (0); \ + ai[i0] = a; \ + return ai; \ +} + +/* ALU functions immediate: */ +/* *INDENT-OFF* */ +_(andi, a = a & b) +_(andnoti, a = a & ~b) +_(ori, a = a | b) +_(xori, a = a ^ b) +#undef _ +/* *INDENT-ON* */ + /** Return a random bitmap of the requested length @param ai - pointer to the destination bitmap @param n_bits - number of bits to allocate @param [in,out] seed - pointer to the random number seed @returns a reasonably random bitmap based. See random.h. */ - always_inline uword * - clib_bitmap_random (uword * ai, uword n_bits, u32 * seed) +always_inline uword * +clib_bitmap_random (uword * ai, uword n_bits, u32 * seed) { vec_reset_length (ai); |