1251881Speter/* svn_bdb_compat.h --- Compatibility wrapper for different BDB versions. 2251881Speter * 3251881Speter * ==================================================================== 4251881Speter * Licensed to the Apache Software Foundation (ASF) under one 5251881Speter * or more contributor license agreements. See the NOTICE file 6251881Speter * distributed with this work for additional information 7251881Speter * regarding copyright ownership. The ASF licenses this file 8251881Speter * to you under the Apache License, Version 2.0 (the 9251881Speter * "License"); you may not use this file except in compliance 10251881Speter * with the License. You may obtain a copy of the License at 11251881Speter * 12251881Speter * http://www.apache.org/licenses/LICENSE-2.0 13251881Speter * 14251881Speter * Unless required by applicable law or agreed to in writing, 15251881Speter * software distributed under the License is distributed on an 16251881Speter * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17251881Speter * KIND, either express or implied. See the License for the 18251881Speter * specific language governing permissions and limitations 19251881Speter * under the License. 20251881Speter * ==================================================================== 21251881Speter */ 22251881Speter 23251881Speter#ifndef SVN_LIBSVN_FS_BDB_COMPAT_H 24251881Speter#define SVN_LIBSVN_FS_BDB_COMPAT_H 25251881Speter 26251881Speter#define SVN_WANT_BDB 27251881Speter#include "svn_private_config.h" 28251881Speter 29251881Speter#ifdef __cplusplus 30251881Speterextern "C" { 31251881Speter#endif /* __cplusplus */ 32251881Speter 33251881Speter 34251881Speter/* Symbols and constants */ 35251881Speter 36251881Speter/* BDB 4.1 introduced the DB_AUTO_COMMIT flag. Older versions can just 37251881Speter use 0 instead. */ 38251881Speter#ifdef DB_AUTO_COMMIT 39251881Speter#define SVN_BDB_AUTO_COMMIT (DB_AUTO_COMMIT) 40251881Speter#else 41251881Speter#define SVN_BDB_AUTO_COMMIT (0) 42251881Speter#endif 43251881Speter 44251881Speter/* DB_INCOMPLETE is obsolete in BDB 4.1. */ 45251881Speter#ifdef DB_INCOMPLETE 46251881Speter#define SVN_BDB_HAS_DB_INCOMPLETE 1 47251881Speter#else 48251881Speter#define SVN_BDB_HAS_DB_INCOMPLETE 0 49251881Speter#endif 50251881Speter 51251881Speter/* In BDB 4.3, "buffer too small" errors come back with 52251881Speter DB_BUFFER_SMALL (instead of ENOMEM, which is now fatal). */ 53251881Speter#ifdef DB_BUFFER_SMALL 54251881Speter#define SVN_BDB_DB_BUFFER_SMALL DB_BUFFER_SMALL 55251881Speter#else 56251881Speter#define SVN_BDB_DB_BUFFER_SMALL ENOMEM 57251881Speter#endif 58251881Speter 59251881Speter/* BDB 4.4 introdiced the DB_REGISTER flag for DBEnv::open that allows 60251881Speter for automatic recovery of the databases after a program crash. */ 61251881Speter#ifdef DB_REGISTER 62251881Speter#define SVN_BDB_AUTO_RECOVER (DB_REGISTER | DB_RECOVER) 63251881Speter#else 64251881Speter#define SVN_BDB_AUTO_RECOVER (0) 65251881Speter#endif 66251881Speter 67251881Speter 68251881Speter/* Explicit BDB version check. */ 69251881Speter#define SVN_BDB_VERSION_AT_LEAST(major,minor) \ 70251881Speter (DB_VERSION_MAJOR > (major) \ 71251881Speter || (DB_VERSION_MAJOR == (major) && DB_VERSION_MINOR >= (minor))) 72251881Speter 73251881Speter 74251881Speter/* Parameter lists */ 75251881Speter 76251881Speter/* In BDB 4.1, DB->open takes a transaction parameter. We'll ignore it 77251881Speter when building with 4.0. */ 78251881Speter#if SVN_BDB_VERSION_AT_LEAST(4,1) 79251881Speter#define SVN_BDB_OPEN_PARAMS(env,txn) (env), (txn) 80251881Speter#else 81251881Speter#define SVN_BDB_OPEN_PARAMS(env,txn) (env) 82251881Speter#endif 83251881Speter 84251881Speter/* In BDB 4.3, the error gatherer function grew a new DBENV parameter, 85251881Speter and the MSG parameter's type changed. */ 86251881Speter#if SVN_BDB_VERSION_AT_LEAST(4,3) 87251881Speter/* Prevents most compilers from whining about unused parameters. */ 88251881Speter#define SVN_BDB_ERROR_GATHERER_IGNORE(varname) ((void)(varname)) 89251881Speter#else 90251881Speter#define bdb_error_gatherer(param1, param2, param3) \ 91251881Speter bdb_error_gatherer(param2, char *msg) 92251881Speter#define SVN_BDB_ERROR_GATHERER_IGNORE(varname) ((void)0) 93251881Speter#endif 94251881Speter 95251881Speter/* In BDB 4.3 and later, the file names in DB_ENV->open and DB->open 96251881Speter are assumed to be encoded in UTF-8 on Windows. */ 97251881Speter#if defined(WIN32) && SVN_BDB_VERSION_AT_LEAST(4,3) 98251881Speter#define SVN_BDB_PATH_UTF8 (1) 99251881Speter#else 100251881Speter#define SVN_BDB_PATH_UTF8 (0) 101251881Speter#endif 102251881Speter 103251881Speter/* In BDB 4.6, the cursor routines were renamed, and the old names 104251881Speter deprecated. */ 105251881Speter#if SVN_BDB_VERSION_AT_LEAST(4,6) 106251881Speter#define svn_bdb_dbc_close(c) ((c)->close(c)) 107251881Speter#define svn_bdb_dbc_count(c,r,f) ((c)->count(c,r,f)) 108251881Speter#define svn_bdb_dbc_del(c,f) ((c)->del(c,f)) 109251881Speter#define svn_bdb_dbc_dup(c,p,f) ((c)->dup(c,p,f)) 110251881Speter#define svn_bdb_dbc_get(c,k,d,f) ((c)->get(c,k,d,f)) 111251881Speter#define svn_bdb_dbc_pget(c,k,p,d,f) ((c)->pget(c,k,p,d,f)) 112251881Speter#define svn_bdb_dbc_put(c,k,d,f) ((c)->put(c,k,d,f)) 113251881Speter#else 114251881Speter#define svn_bdb_dbc_close(c) ((c)->c_close(c)) 115251881Speter#define svn_bdb_dbc_count(c,r,f) ((c)->c_count(c,r,f)) 116251881Speter#define svn_bdb_dbc_del(c,f) ((c)->c_del(c,f)) 117251881Speter#define svn_bdb_dbc_dup(c,p,f) ((c)->c_dup(c,p,f)) 118251881Speter#define svn_bdb_dbc_get(c,k,d,f) ((c)->c_get(c,k,d,f)) 119251881Speter#define svn_bdb_dbc_pget(c,k,p,d,f) ((c)->c_pget(c,k,p,d,f)) 120251881Speter#define svn_bdb_dbc_put(c,k,d,f) ((c)->c_put(c,k,d,f)) 121251881Speter#endif 122251881Speter 123251881Speter/* Before calling db_create, we must check that the version of the BDB 124251881Speter libraries we're linking with is the same as the one we compiled 125251881Speter against, because the DB->open call is not binary compatible between 126251881Speter BDB 4.0 and 4.1. This function returns DB_OLD_VERSION if the 127251881Speter compile-time and run-time versions of BDB don't match. */ 128251881Speterint svn_fs_bdb__check_version(void); 129251881Speter 130251881Speter 131251881Speter#ifdef __cplusplus 132251881Speter} 133251881Speter#endif /* __cplusplus */ 134251881Speter 135251881Speter#endif /* SVN_LIBSVN_FS_BDB_COMPAT_H */ 136