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/*
* fnv1a.h : routines to create checksums derived from FNV-1a
*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*/
#ifndef SVN_LIBSVN_SUBR_FNV1A_H
#define SVN_LIBSVN_SUBR_FNV1A_H
#include <apr_pools.h>
#include "svn_types.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/* Opaque FNV-1a checksum creation context type.
*/
typedef struct svn_fnv1a_32__context_t svn_fnv1a_32__context_t;
/* Return a new FNV-1a checksum creation context allocated in POOL.
*/
svn_fnv1a_32__context_t *
svn_fnv1a_32__context_create(apr_pool_t *pool);
/* Feed LEN bytes from DATA into the FNV-1a checksum creation CONTEXT.
*/
void
svn_fnv1a_32__update(svn_fnv1a_32__context_t *context,
const void *data,
apr_size_t len);
/* Return the FNV-1a checksum over all data fed into CONTEXT.
*/
apr_uint32_t
svn_fnv1a_32__finalize(svn_fnv1a_32__context_t *context);
/* Opaque modified FNV-1a checksum creation context type.
*/
typedef struct svn_fnv1a_32x4__context_t svn_fnv1a_32x4__context_t;
/* Return a new modified FNV-1a checksum creation context allocated in POOL.
*/
svn_fnv1a_32x4__context_t *
svn_fnv1a_32x4__context_create(apr_pool_t *pool);
/* Feed LEN bytes from DATA into the modified FNV-1a checksum creation
* CONTEXT.
*/
void
svn_fnv1a_32x4__update(svn_fnv1a_32x4__context_t *context,
const void *data,
apr_size_t len);
/* Return the modified FNV-1a checksum over all data fed into CONTEXT.
*/
apr_uint32_t
svn_fnv1a_32x4__finalize(svn_fnv1a_32x4__context_t *context);
/* Set HASHES to the 4 partial hash sums produced by the modified FVN-1a
* over INPUT of LEN bytes.
*/
void
svn__fnv1a_32x4_raw(apr_uint32_t hashes[4],
const void *input,
apr_size_t len);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* SVN_LIBSVN_SUBR_FNV1A_H */
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