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author | David Robillard <d@drobilla.net> | 2018-06-06 20:35:46 +0200 |
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committer | David Robillard <d@drobilla.net> | 2020-10-27 13:13:58 +0100 |
commit | e2746ac58445ed1a774b545efab4a457bb6b5ac1 (patch) | |
tree | 284e9a772c5195868695f2aff8327f985c0b551b /src/zix/digest.h | |
parent | c72c0d4ee90cec4e288f3b23eec5413bb6b1ee32 (diff) | |
download | serd-e2746ac58445ed1a774b545efab4a457bb6b5ac1.tar.gz serd-e2746ac58445ed1a774b545efab4a457bb6b5ac1.tar.bz2 serd-e2746ac58445ed1a774b545efab4a457bb6b5ac1.zip |
Add zix data structures for use in model
Diffstat (limited to 'src/zix/digest.h')
-rw-r--r-- | src/zix/digest.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/zix/digest.h b/src/zix/digest.h new file mode 100644 index 00000000..16ba9b9c --- /dev/null +++ b/src/zix/digest.h @@ -0,0 +1,63 @@ +/* + Copyright 2012-2020 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. +*/ + +#ifndef ZIX_DIGEST_H +#define ZIX_DIGEST_H + +#include "zix/common.h" + +#include <stddef.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/** + Return an initial empty digest value. +*/ +ZIX_API uint32_t +zix_digest_start(void); + +/** + Update `hash` to include `buf`, a buffer of `len` bytes. + + This can be used for any size or alignment. +*/ +ZIX_API uint32_t +zix_digest_add(uint32_t hash, const void* buf, size_t len); + +/** + Update `hash` to include `buf`, a 64-bit aligned buffer of `len` bytes. + + Both `buf` and `len` must be evenly divisible by 8 (64 bits). +*/ +ZIX_API uint32_t +zix_digest_add_64(uint32_t hash, const void* buf, size_t len); + +/** + Update `hash` to include `ptr`. + + This hashes the value of the pointer itself, and does not dereference `ptr`. +*/ +ZIX_API uint32_t +zix_digest_add_ptr(uint32_t hash, const void* ptr); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* ZIX_DIGEST_H */ |