| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
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| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
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| * |
| * 5. Products derived from this software may not be called "Apache", |
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| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
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| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| /* |
| * sdbm - ndbm work-alike hashed database library |
| * based on Per-Ake Larson's Dynamic Hashing algorithms. BIT 18 (1978). |
| * author: oz@nexus.yorku.ca |
| * status: ex-public domain |
| */ |
| |
| #ifndef APR_SDBM_H |
| #define APR_SDBM_H |
| |
| #include "apr_errno.h" |
| #include "apr_file_io.h" /* for apr_fileperms_t */ |
| |
| typedef struct SDBM SDBM; |
| |
| /* utility functions */ |
| int sdbm_rdonly(SDBM *db); |
| int sdbm_error(SDBM *db); |
| int sdbm_clearerr(SDBM *db); |
| |
| typedef struct { |
| char *dptr; |
| int dsize; |
| } sdbm_datum; |
| |
| /* The extensions used for the database files */ |
| #define SDBM_DIRFEXT ".dir" |
| #define SDBM_PAGFEXT ".pag" |
| |
| /* Standard dbm interface */ |
| |
| apr_status_t sdbm_open(SDBM **db, const char *filename, apr_int32_t flags, |
| apr_fileperms_t perms, apr_pool_t *p); |
| |
| void sdbm_close(SDBM *db); /* ### should return value? */ |
| |
| sdbm_datum sdbm_fetch(SDBM *db, sdbm_datum key); |
| apr_status_t sdbm_delete(SDBM *db, const sdbm_datum key); |
| |
| /* * flags to sdbm_store */ |
| #define SDBM_INSERT 0 |
| #define SDBM_REPLACE 1 |
| apr_status_t sdbm_store(SDBM *db, sdbm_datum key, sdbm_datum value, int flags); |
| sdbm_datum sdbm_firstkey(SDBM *db); |
| sdbm_datum sdbm_nextkey(SDBM *db); |
| |
| /* |
| * other |
| */ |
| apr_status_t sdbm_prep(SDBM **db, const char *dirname, const char *pagname, |
| apr_int32_t flags, apr_fileperms_t perms, |
| apr_pool_t *pool); |
| |
| long sdbm_hash(const char *str, int len); |
| |
| #endif /* APR_SDBM_H */ |