diff options
author | David Robillard <d@drobilla.net> | 2018-06-06 20:35:46 +0200 |
---|---|---|
committer | David Robillard <d@drobilla.net> | 2021-03-08 23:23:05 -0500 |
commit | f0c30e3fff0072746252eb9a37334e740975f389 (patch) | |
tree | 0884839806daefab81791818cabe676ef0dc3fd0 /src/zix/digest.h | |
parent | ab89a23a350016ba6633d4584584f23767977fb4 (diff) | |
download | serd-f0c30e3fff0072746252eb9a37334e740975f389.tar.gz serd-f0c30e3fff0072746252eb9a37334e740975f389.tar.bz2 serd-f0c30e3fff0072746252eb9a37334e740975f389.zip |
Add zix data structures
Diffstat (limited to 'src/zix/digest.h')
-rw-r--r-- | src/zix/digest.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/zix/digest.h b/src/zix/digest.h new file mode 100644 index 00000000..1fde77a9 --- /dev/null +++ b/src/zix/digest.h @@ -0,0 +1,67 @@ +/* + Copyright 2012-2020 David Robillard <d@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_CONST_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_PURE_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_PURE_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_CONST_API +uint32_t +zix_digest_add_ptr(uint32_t hash, const void* ptr); + +#ifdef __cplusplus +} /* extern "C" */ +#endif + +#endif /* ZIX_DIGEST_H */ |