937a200089
This is actually a fully functional build except: * All internal shared libraries are static linked to make sure there is no interference with ports (and to reduce build time). * It does not have the python/perl/etc plugin or API support. * By default, it installs as "svnlite" rather than "svn". * If WITH_SVN added in make.conf, you get "svn". * If WITHOUT_SVNLITE is in make.conf, this is completely disabled. To be absolutely clear, this is not intended for any use other than checking out freebsd source and committing, like we once did with cvs. It should be usable for small scale local repositories that don't need the python/perl plugin architecture.
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* 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.
|
|
*/
|
|
|
|
/*
|
|
* sdbm - ndbm work-alike hashed database library
|
|
* based on Per-Aake Larson's Dynamic Hashing algorithms. BIT 18 (1978).
|
|
* author: oz@nexus.yorku.ca
|
|
* status: ex-public domain. keep it that way.
|
|
*
|
|
* hashing routine
|
|
*/
|
|
|
|
#include "apr_sdbm.h"
|
|
#include "sdbm_private.h"
|
|
|
|
/*
|
|
* polynomial conversion ignoring overflows
|
|
* [this seems to work remarkably well, in fact better
|
|
* then the ndbm hash function. Replace at your own risk]
|
|
* use: 65599 nice.
|
|
* 65587 even better.
|
|
*/
|
|
long sdbm_hash(const char *str, int len)
|
|
{
|
|
register unsigned long n = 0;
|
|
|
|
#define DUFF /* go ahead and use the loop-unrolled version */
|
|
#ifdef DUFF
|
|
|
|
#define HASHC n = *str++ + 65599 * n
|
|
|
|
if (len > 0) {
|
|
register int loop = (len + 8 - 1) >> 3;
|
|
|
|
switch(len & (8 - 1)) {
|
|
case 0: do {
|
|
HASHC; case 7: HASHC;
|
|
case 6: HASHC; case 5: HASHC;
|
|
case 4: HASHC; case 3: HASHC;
|
|
case 2: HASHC; case 1: HASHC;
|
|
} while (--loop);
|
|
}
|
|
|
|
}
|
|
#else
|
|
while (len--)
|
|
n = *str++ + 65599 * n;
|
|
#endif
|
|
return n;
|
|
}
|