diff options
Diffstat (limited to 'dbm/apr_dbm_berkeleydb.c')
| -rw-r--r-- | dbm/apr_dbm_berkeleydb.c | 404 |
1 files changed, 0 insertions, 404 deletions
diff --git a/dbm/apr_dbm_berkeleydb.c b/dbm/apr_dbm_berkeleydb.c deleted file mode 100644 index 0cbab82b..00000000 --- a/dbm/apr_dbm_berkeleydb.c +++ /dev/null @@ -1,404 +0,0 @@ -/* 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. - */ - -#include "apr_strings.h" -#define APR_WANT_MEMFUNC -#include "apr_want.h" - -#define APU_WANT_DB -#include "apu_want.h" - -#if APR_HAVE_STDLIB_H -#include <stdlib.h> /* for abort() */ -#endif - -#include "apu_config.h" -#include "apu.h" - -#if APU_HAVE_DB -#include "apr_dbm_private.h" - -/* - * We pick up all varieties of Berkeley DB through db.h (included through - * apu_select_dbm.h). This code has been compiled/tested against DB1, - * DB_185, DB2, DB3, and DB4. - */ - -#if defined(DB_VERSION_MAJOR) && (DB_VERSION_MAJOR == 4) -/* We will treat anything greater than 4.1 as DB4. - * We can treat 4.0 as DB3. - */ -#if defined(DB_VERSION_MINOR) && (DB_VERSION_MINOR >= 1) -#define DB_VER 4 -#else -#define DB_VER 3 -#endif -#elif defined(DB_VERSION_MAJOR) && (DB_VERSION_MAJOR == 3) -#define DB_VER 3 -#elif defined(DB_VERSION_MAJOR) && (DB_VERSION_MAJOR == 2) -#define DB_VER 2 -#else -#define DB_VER 1 -#endif - -typedef struct { - DB *bdb; -#if DB_VER != 1 - DBC *curs; -#endif -} real_file_t; - - -#if DB_VER == 1 -#define TXN_ARG -#else -#define TXN_ARG NULL, -#endif - -#define GET_BDB(f) (((real_file_t *)(f))->bdb) - -#define do_fetch(bdb, k, v) ((*(bdb)->get)(bdb, TXN_ARG &(k), &(v), 0)) - -#if DB_VER == 1 -#include <sys/fcntl.h> -#define APR_DBM_DBMODE_RO O_RDONLY -#define APR_DBM_DBMODE_RW O_RDWR -#define APR_DBM_DBMODE_RWCREATE (O_CREAT | O_RDWR) -#define APR_DBM_DBMODE_RWTRUNC (O_CREAT | O_RDWR | O_TRUNC) -#else -#define APR_DBM_DBMODE_RO DB_RDONLY -#define APR_DBM_DBMODE_RW 0 -#define APR_DBM_DBMODE_RWCREATE DB_CREATE -#define APR_DBM_DBMODE_RWTRUNC DB_TRUNCATE -#endif /* DBVER == 1 */ - -/* -------------------------------------------------------------------------- -** -** UTILITY FUNCTIONS -*/ - -/* map a DB error to an apr_status_t */ -static apr_status_t db2s(int dberr) -{ - if (dberr != 0) { - /* ### need to fix this */ - return APR_OS_START_USEERR + dberr; - } - - return APR_SUCCESS; -} - - -static apr_status_t set_error(apr_dbm_t *dbm, apr_status_t dbm_said) -{ - apr_status_t rv = APR_SUCCESS; - - /* ### ignore whatever the DBM said (dbm_said); ask it explicitly */ - - if (dbm_said == APR_SUCCESS) { - dbm->errcode = 0; - dbm->errmsg = NULL; - } - else { - /* ### need to fix. dberr was tossed in db2s(). */ - /* ### use db_strerror() */ - dbm->errcode = dbm_said; -#if DB_VER == 1 || DB_VER == 2 - dbm->errmsg = NULL; -#else - dbm->errmsg = db_strerror(dbm_said - APR_OS_START_USEERR); -#endif - rv = dbm_said; - } - - return rv; -} - -/* -------------------------------------------------------------------------- -** -** DEFINE THE VTABLE FUNCTIONS FOR BERKELEY DB -** -** ### we may need three sets of these: db1, db2, db3 -*/ - -static apr_status_t vt_db_open(apr_dbm_t **pdb, const char *pathname, - apr_int32_t mode, apr_fileperms_t perm, - apr_pool_t *pool) -{ - real_file_t file; - int dbmode; - - *pdb = NULL; - - switch (mode) { - case APR_DBM_READONLY: - dbmode = APR_DBM_DBMODE_RO; - break; - case APR_DBM_READWRITE: - dbmode = APR_DBM_DBMODE_RW; - break; - case APR_DBM_RWCREATE: - dbmode = APR_DBM_DBMODE_RWCREATE; - break; - case APR_DBM_RWTRUNC: - dbmode = APR_DBM_DBMODE_RWTRUNC; - break; - default: - return APR_EINVAL; - } - - { - int dberr; - -#if DB_VER >= 3 - if ((dberr = db_create(&file.bdb, NULL, 0)) == 0) { - if ((dberr = (*file.bdb->open)(file.bdb, -#if DB_VER == 4 - NULL, -#endif - pathname, NULL, - DB_HASH, dbmode, - apr_posix_perms2mode(perm))) != 0) { - /* close the DB handler */ - (void) (*file.bdb->close)(file.bdb, 0); - } - } - file.curs = NULL; -#elif DB_VER == 2 - dberr = db_open(pathname, DB_HASH, dbmode, apr_posix_perms2mode(perm), - NULL, NULL, &file.bdb); - file.curs = NULL; -#else - file.bdb = dbopen(pathname, dbmode, apr_posix_perms2mode(perm), - DB_HASH, NULL); - if (file.bdb == NULL) - return APR_EGENERAL; /* ### need a better error */ - dberr = 0; -#endif - if (dberr != 0) - return db2s(dberr); - } - - /* we have an open database... return it */ - *pdb = apr_pcalloc(pool, sizeof(**pdb)); - (*pdb)->pool = pool; - (*pdb)->type = &apr_dbm_type_db; - (*pdb)->file = apr_pmemdup(pool, &file, sizeof(file)); - - /* ### register a cleanup to close the DBM? */ - - return APR_SUCCESS; -} - -static void vt_db_close(apr_dbm_t *dbm) -{ - (*GET_BDB(dbm->file)->close)(GET_BDB(dbm->file) -#if DB_VER != 1 - , 0 -#endif - ); -} - -static apr_status_t vt_db_fetch(apr_dbm_t *dbm, apr_datum_t key, - apr_datum_t * pvalue) -{ - DBT ckey = { 0 }; - DBT rd = { 0 }; - int dberr; - - ckey.data = key.dptr; - ckey.size = key.dsize; - - dberr = do_fetch(GET_BDB(dbm->file), ckey, rd); - - /* "not found" is not an error. return zero'd value. */ - if (dberr == -#if DB_VER == 1 - RET_SPECIAL -#else - DB_NOTFOUND -#endif - ) { - memset(&rd, 0, sizeof(rd)); - dberr = 0; - } - - pvalue->dptr = rd.data; - pvalue->dsize = rd.size; - - /* store the error info into DBM, and return a status code. Also, note - that *pvalue should have been cleared on error. */ - return set_error(dbm, db2s(dberr)); -} - -static apr_status_t vt_db_store(apr_dbm_t *dbm, apr_datum_t key, - apr_datum_t value) -{ - apr_status_t rv; - DBT ckey = { 0 }; - DBT cvalue = { 0 }; - - ckey.data = key.dptr; - ckey.size = key.dsize; - - cvalue.data = value.dptr; - cvalue.size = value.dsize; - - rv = db2s((*GET_BDB(dbm->file)->put)(GET_BDB(dbm->file), - TXN_ARG - &ckey, - &cvalue, - 0)); - - /* store any error info into DBM, and return a status code. */ - return set_error(dbm, rv); -} - -static apr_status_t vt_db_del(apr_dbm_t *dbm, apr_datum_t key) -{ - apr_status_t rv; - DBT ckey = { 0 }; - - ckey.data = key.dptr; - ckey.size = key.dsize; - - rv = db2s((*GET_BDB(dbm->file)->del)(GET_BDB(dbm->file), - TXN_ARG - &ckey, - 0)); - - /* store any error info into DBM, and return a status code. */ - return set_error(dbm, rv); -} - -static int vt_db_exists(apr_dbm_t *dbm, apr_datum_t key) -{ - DBT ckey = { 0 }; /* converted key */ - DBT data = { 0 }; - int dberr; - - ckey.data = key.dptr; - ckey.size = key.dsize; - - dberr = do_fetch(GET_BDB(dbm->file), ckey, data); - - /* note: the result data is "loaned" to us; we don't need to free it */ - - /* DB returns DB_NOTFOUND if it doesn't exist. but we want to say - that *any* error means it doesn't exist. */ - return dberr == 0; -} - -static apr_status_t vt_db_firstkey(apr_dbm_t *dbm, apr_datum_t * pkey) -{ - real_file_t *f = dbm->file; - DBT first = { 0 }; - DBT data = { 0 }; - int dberr; - -#if DB_VER == 1 - dberr = (*f->bdb->seq)(f->bdb, &first, &data, R_FIRST); -#else - if ((dberr = (*f->bdb->cursor)(f->bdb, NULL, &f->curs -#if DB_VER >= 3 || ((DB_VERSION_MAJOR == 2) && (DB_VERSION_MINOR > 5)) - , 0 -#endif - )) == 0) { - dberr = (*f->curs->c_get)(f->curs, &first, &data, DB_FIRST); - if (dberr == DB_NOTFOUND) { - memset(&first, 0, sizeof(first)); - (*f->curs->c_close)(f->curs); - f->curs = NULL; - dberr = 0; - } - } -#endif - - pkey->dptr = first.data; - pkey->dsize = first.size; - - /* store any error info into DBM, and return a status code. */ - return set_error(dbm, db2s(dberr)); -} - -static apr_status_t vt_db_nextkey(apr_dbm_t *dbm, apr_datum_t * pkey) -{ - real_file_t *f = dbm->file; - DBT ckey = { 0 }; - DBT data = { 0 }; - int dberr; - - ckey.data = pkey->dptr; - ckey.size = pkey->dsize; - -#if DB_VER == 1 - dberr = (*f->bdb->seq)(f->bdb, &ckey, &data, R_NEXT); - if (dberr == RET_SPECIAL) { - dberr = 0; - ckey.data = NULL; - ckey.size = 0; - } -#else - if (f->curs == NULL) - return APR_EINVAL; - - dberr = (*f->curs->c_get)(f->curs, &ckey, &data, DB_NEXT); - if (dberr == DB_NOTFOUND) { - (*f->curs->c_close)(f->curs); - f->curs = NULL; - dberr = 0; - ckey.data = NULL; - ckey.size = 0; - } -#endif - - pkey->dptr = ckey.data; - pkey->dsize = ckey.size; - - /* store any error info into DBM, and return a status code. */ - /* ### or use db2s(dberr) instead of APR_SUCCESS? */ - return set_error(dbm, APR_SUCCESS); -} - -static void vt_db_freedatum(apr_dbm_t *dbm, apr_datum_t data) -{ - /* nothing to do */ -} - -static void vt_db_usednames(apr_pool_t *pool, const char *pathname, - const char **used1, const char **used2) -{ - *used1 = apr_pstrdup(pool, pathname); - *used2 = NULL; -} - - -APU_MODULE_DECLARE_DATA const apr_dbm_type_t apr_dbm_type_db = { - "db", - - vt_db_open, - vt_db_close, - vt_db_fetch, - vt_db_store, - vt_db_del, - vt_db_exists, - vt_db_firstkey, - vt_db_nextkey, - vt_db_freedatum, - vt_db_usednames -}; - -#endif /* APU_HAVE_DB */ |