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| author | Alasdair Kergon <agk@redhat.com> | 2010-04-20 13:58:22 +0000 |
|---|---|---|
| committer | Alasdair Kergon <agk@redhat.com> | 2010-04-20 13:58:22 +0000 |
| commit | 49ada7a2c3f664aa2c3e17e2adf4abaf2a04d17d (patch) | |
| tree | ce9ea1c89a1983b115739884821831418e4a917e | |
| parent | c3b712f8a0acb372a5642eb80eadf1677810bfe4 (diff) | |
| download | lvm2-49ada7a2c3f664aa2c3e17e2adf4abaf2a04d17d.tar.gz lvm2-49ada7a2c3f664aa2c3e17e2adf4abaf2a04d17d.tar.xz lvm2-49ada7a2c3f664aa2c3e17e2adf4abaf2a04d17d.zip | |
Add dm_bitset_equal to libdevmapper.
| -rw-r--r-- | WHATS_NEW_DM | 2 | ||||
| -rw-r--r-- | libdm/.exported_symbols | 1 | ||||
| -rw-r--r-- | libdm/datastruct/bitset.c | 11 | ||||
| -rw-r--r-- | libdm/libdevmapper.h | 2 |
4 files changed, 15 insertions, 1 deletions
diff --git a/WHATS_NEW_DM b/WHATS_NEW_DM index 65784772..60725a8a 100644 --- a/WHATS_NEW_DM +++ b/WHATS_NEW_DM @@ -1,6 +1,6 @@ Version 1.02.47 - ================================= - Add dm_bit_and. + Add dm_bit_and and dm_bitset_equal to libdevmapper. Simplify dm_bitset_create. Speed up dm_bit_get_next with ffs(). diff --git a/libdm/.exported_symbols b/libdm/.exported_symbols index 67962aee..73ee5bd7 100644 --- a/libdm/.exported_symbols +++ b/libdm/.exported_symbols @@ -109,6 +109,7 @@ dm_pool_strndup dm_pool_zalloc dm_bitset_create dm_bitset_destroy +dm_bitset_equal dm_bit_and dm_bit_union dm_bit_get_first diff --git a/libdm/datastruct/bitset.c b/libdm/datastruct/bitset.c index 6dd5952a..9b8aff93 100644 --- a/libdm/datastruct/bitset.c +++ b/libdm/datastruct/bitset.c @@ -42,6 +42,17 @@ void dm_bitset_destroy(dm_bitset_t bs) dm_free(bs); } +int dm_bitset_equal(dm_bitset_t in1, dm_bitset_t in2) +{ + int i; + + for (i = (in1[0] / DM_BITS_PER_INT) + 1; i; i--) + if (in1[i] != in2[i]) + return 0; + + return 1; +} + void dm_bit_and(dm_bitset_t out, dm_bitset_t in1, dm_bitset_t in2) { int i; diff --git a/libdm/libdevmapper.h b/libdm/libdevmapper.h index 24357742..0ee23fbb 100644 --- a/libdm/libdevmapper.h +++ b/libdm/libdevmapper.h @@ -600,6 +600,8 @@ typedef uint32_t *dm_bitset_t; dm_bitset_t dm_bitset_create(struct dm_pool *mem, unsigned num_bits); void dm_bitset_destroy(dm_bitset_t bs); +int dm_bitset_equal(dm_bitset_t in1, dm_bitset_t in2); + void dm_bit_and(dm_bitset_t out, dm_bitset_t in1, dm_bitset_t in2); void dm_bit_union(dm_bitset_t out, dm_bitset_t in1, dm_bitset_t in2); int dm_bit_get_first(dm_bitset_t bs); |