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author | David Robillard <d@drobilla.net> | 2012-08-10 02:15:53 +0000 |
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committer | David Robillard <d@drobilla.net> | 2012-08-10 02:15:53 +0000 |
commit | 0bb59462ed60f87eb18effdd06e74a750e274ca8 (patch) | |
tree | 88620255ecdabac4543a63e47dd45fd2e450c129 /zix/chunk.c | |
parent | 1d57e000b026e4f65060d2fb4d1ea000124fa791 (diff) | |
download | zix-0bb59462ed60f87eb18effdd06e74a750e274ca8.tar.gz zix-0bb59462ed60f87eb18effdd06e74a750e274ca8.tar.bz2 zix-0bb59462ed60f87eb18effdd06e74a750e274ca8.zip |
Minimal space overhead inline value hash table.
Add ZixChunk.
Add SSE 4.2 accelerated digest (with fallback) in zix/digest.h.
Make library optionally header-only (define ZIX_INLINE).
git-svn-id: http://svn.drobilla.net/zix/trunk@76 df6676b4-ccc9-40e5-b5d6-7c4628a128e3
Diffstat (limited to 'zix/chunk.c')
-rw-r--r-- | zix/chunk.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/zix/chunk.c b/zix/chunk.c new file mode 100644 index 0000000..4533b26 --- /dev/null +++ b/zix/chunk.c @@ -0,0 +1,32 @@ +/* + Copyright 2012 David Robillard <http://drobilla.net> + + Permission to use, copy, modify, and/or distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. +*/ + +#include <string.h> + +#include "zix/chunk.h" +#include "zix/digest.h" + +ZIX_API uint32_t +zix_chunk_hash(const ZixChunk* const chunk) +{ + return zix_digest_add(zix_digest_start(), chunk->buf, chunk->len); +} + +ZIX_API bool +zix_chunk_equal(const ZixChunk* a, const ZixChunk* b) +{ + return a->len == b->len && !memcmp(a->buf, b->buf, a->len); +} |