| /* 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 <stdio.h> |
| |
| #include "apu.h" |
| #include "apr_pools.h" |
| #include "apr_dbd_internal.h" |
| #include "apr_dbd.h" |
| #include "apr_hash.h" |
| #include "apr_thread_mutex.h" |
| #include "apr_dso.h" |
| #include "apr_strings.h" |
| |
| static apr_hash_t *drivers = NULL; |
| |
| #define CLEANUP_CAST (apr_status_t (*)(void*)) |
| |
| /* Once the autofoo supports building it for dynamic load, we can use |
| * #define APR_DSO_BUILD APR_HAS_DSO |
| */ |
| |
| #if APR_DSO_BUILD |
| #if APR_HAS_THREADS |
| static apr_thread_mutex_t* mutex = NULL; |
| #endif |
| #else |
| #define DRIVER_LOAD(name,driver,pool) \ |
| { \ |
| extern const apr_dbd_driver_t driver; \ |
| apr_hash_set(drivers,name,APR_HASH_KEY_STRING,&driver); \ |
| if (driver.init) { \ |
| driver.init(pool); \ |
| } \ |
| } |
| #endif |
| |
| static apr_status_t apr_dbd_term(void *ptr) |
| { |
| /* set drivers to NULL so init can work again */ |
| drivers = NULL; |
| |
| /* Everything else we need is handled by cleanups registered |
| * when we created mutexes and loaded DSOs |
| */ |
| return APR_SUCCESS; |
| } |
| |
| APU_DECLARE(apr_status_t) apr_dbd_init(apr_pool_t *pool) |
| { |
| apr_status_t ret = APR_SUCCESS; |
| |
| if (drivers != NULL) { |
| return APR_SUCCESS; |
| } |
| drivers = apr_hash_make(pool); |
| apr_pool_cleanup_register(pool, NULL, apr_dbd_term, |
| apr_pool_cleanup_null); |
| |
| #if APR_DSO_BUILD |
| |
| #if APR_HAS_THREADS |
| ret = apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_DEFAULT, pool); |
| /* This already registers a pool cleanup */ |
| #endif |
| |
| #else |
| |
| #if APU_HAVE_MYSQL |
| DRIVER_LOAD("mysql", apr_dbd_mysql_driver, pool); |
| #endif |
| #if APU_HAVE_PGSQL |
| DRIVER_LOAD("pgsql", apr_dbd_pgsql_driver, pool); |
| #endif |
| #if APU_HAVE_SQLITE3 |
| DRIVER_LOAD("sqlite3", apr_dbd_sqlite3_driver, pool); |
| #endif |
| #if APU_HAVE_SQLITE2 |
| DRIVER_LOAD("sqlite2", apr_dbd_sqlite2_driver, pool); |
| #endif |
| #if APU_HAVE_SOME_OTHER_BACKEND |
| DRIVER_LOAD("firebird", apr_dbd_other_driver, pool); |
| #endif |
| #endif |
| return ret; |
| } |
| APU_DECLARE(apr_status_t) apr_dbd_get_driver(apr_pool_t *pool, const char *name, |
| const apr_dbd_driver_t **driver) |
| { |
| #if APR_DSO_BUILD |
| char path[80]; |
| apr_dso_handle_t *dlhandle = NULL; |
| #endif |
| apr_status_t rv; |
| |
| *driver = apr_hash_get(drivers, name, APR_HASH_KEY_STRING); |
| if (*driver) { |
| return APR_SUCCESS; |
| } |
| |
| #if APR_DSO_BUILD |
| |
| #if APR_HAS_THREADS |
| rv = apr_thread_mutex_lock(mutex); |
| if (rv != APR_SUCCESS) { |
| goto unlock; |
| } |
| *driver = apr_hash_get(drivers, name, APR_HASH_KEY_STRING); |
| if (*driver) { |
| goto unlock; |
| } |
| #endif |
| |
| #ifdef WIN32 |
| apr_snprintf(path, sizeof path, "apr_dbd_%s.dll", name); |
| #elif defined(NETWARE) |
| apr_snprintf(path, sizeof path, "dbd%s.nlm", name); |
| #else |
| apr_snprintf(path, sizeof path, "apr_dbd_%s.so", name); |
| #endif |
| rv = apr_dso_load(&dlhandle, path, pool); |
| if (rv != APR_SUCCESS) { /* APR_EDSOOPEN */ |
| goto unlock; |
| } |
| apr_snprintf(path, sizeof path, "apr_dbd_%s_driver", name); |
| rv = apr_dso_sym((void*)driver, dlhandle, path); |
| if (rv != APR_SUCCESS) { /* APR_ESYMNOTFOUND */ |
| apr_dso_unload(dlhandle); |
| goto unlock; |
| } |
| if ((*driver)->init) { |
| (*driver)->init(pool); |
| } |
| apr_hash_set(drivers, name, APR_HASH_KEY_STRING, *driver); |
| |
| unlock: |
| #if APR_HAS_THREADS |
| apr_thread_mutex_unlock(mutex); |
| #endif |
| |
| #else /* APR_DSO_BUILD - so if it wasn't already loaded, it's NOTIMPL */ |
| rv = APR_ENOTIMPL; |
| #endif |
| |
| return rv; |
| } |
| APU_DECLARE(apr_status_t) apr_dbd_open(const apr_dbd_driver_t *driver, |
| apr_pool_t *pool, const char *params, |
| apr_dbd_t **handle) |
| { |
| apr_status_t rv; |
| *handle = (driver->open)(pool, params); |
| if (*handle == NULL) { |
| return APR_EGENERAL; |
| } |
| rv = apr_dbd_check_conn(driver, pool, *handle); |
| if ((rv != APR_SUCCESS) && (rv != APR_ENOTIMPL)) { |
| apr_dbd_close(driver, *handle); |
| return APR_EGENERAL; |
| } |
| return APR_SUCCESS; |
| } |
| APU_DECLARE(int) apr_dbd_transaction_start(const apr_dbd_driver_t *driver, |
| apr_pool_t *pool, apr_dbd_t *handle, |
| apr_dbd_transaction_t **trans) |
| { |
| int ret = driver->start_transaction(pool, handle, trans); |
| if (*trans) { |
| apr_pool_cleanup_register(pool, *trans, |
| CLEANUP_CAST driver->end_transaction, |
| apr_pool_cleanup_null); |
| } |
| return ret; |
| } |
| APU_DECLARE(int) apr_dbd_transaction_end(const apr_dbd_driver_t *driver, |
| apr_pool_t *pool, |
| apr_dbd_transaction_t *trans) |
| { |
| apr_pool_cleanup_kill(pool, trans, CLEANUP_CAST driver->end_transaction); |
| return driver->end_transaction(trans); |
| } |
| |
| APU_DECLARE(apr_status_t) apr_dbd_close(const apr_dbd_driver_t *driver, |
| apr_dbd_t *handle) |
| { |
| return driver->close(handle); |
| } |
| APU_DECLARE(const char*) apr_dbd_name(const apr_dbd_driver_t *driver) |
| { |
| return driver->name; |
| } |
| APU_DECLARE(void*) apr_dbd_native_handle(const apr_dbd_driver_t *driver, |
| apr_dbd_t *handle) |
| { |
| return driver->native_handle(handle); |
| } |
| APU_DECLARE(int) apr_dbd_check_conn(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle) |
| { |
| return driver->check_conn(pool, handle); |
| } |
| APU_DECLARE(int) apr_dbd_set_dbname(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, const char *name) |
| { |
| return driver->set_dbname(pool,handle,name); |
| } |
| APU_DECLARE(int) apr_dbd_query(const apr_dbd_driver_t *driver, apr_dbd_t *handle, |
| int *nrows, const char *statement) |
| { |
| return driver->query(handle,nrows,statement); |
| } |
| APU_DECLARE(int) apr_dbd_select(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, apr_dbd_results_t **res, |
| const char *statement, int random) |
| { |
| return driver->select(pool,handle,res,statement,random); |
| } |
| APU_DECLARE(int) apr_dbd_num_cols(const apr_dbd_driver_t *driver, |
| apr_dbd_results_t *res) |
| { |
| return driver->num_cols(res); |
| } |
| APU_DECLARE(int) apr_dbd_num_tuples(const apr_dbd_driver_t *driver, |
| apr_dbd_results_t *res) |
| { |
| return driver->num_tuples(res); |
| } |
| APU_DECLARE(int) apr_dbd_get_row(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_results_t *res, apr_dbd_row_t **row, |
| int rownum) |
| { |
| return driver->get_row(pool,res,row,rownum); |
| } |
| APU_DECLARE(const char*) apr_dbd_get_entry(const apr_dbd_driver_t *driver, |
| apr_dbd_row_t *row, int col) |
| { |
| return driver->get_entry(row,col); |
| } |
| APU_DECLARE(const char*) apr_dbd_error(const apr_dbd_driver_t *driver, |
| apr_dbd_t *handle, int errnum) |
| { |
| return driver->error(handle,errnum); |
| } |
| APU_DECLARE(const char*) apr_dbd_escape(const apr_dbd_driver_t *driver, |
| apr_pool_t *pool, const char *string, |
| apr_dbd_t *handle) |
| { |
| return driver->escape(pool,string,handle); |
| } |
| APU_DECLARE(int) apr_dbd_prepare(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, const char *query, |
| const char *label, |
| apr_dbd_prepared_t **statement) |
| { |
| return driver->prepare(pool,handle,query,label,statement); |
| } |
| APU_DECLARE(int) apr_dbd_pquery(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, int *nrows, |
| apr_dbd_prepared_t *statement, int nargs, |
| const char **args) |
| { |
| return driver->pquery(pool,handle,nrows,statement,nargs,args); |
| } |
| APU_DECLARE(int) apr_dbd_pselect(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, apr_dbd_results_t **res, |
| apr_dbd_prepared_t *statement, int random, |
| int nargs, const char **args) |
| { |
| return driver->pselect(pool,handle,res,statement,random,nargs,args); |
| } |
| APU_DECLARE(int) apr_dbd_pvquery(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, int *nrows, |
| apr_dbd_prepared_t *statement,...) |
| { |
| int ret; |
| va_list args; |
| va_start(args, statement); |
| ret = driver->pvquery(pool,handle,nrows,statement,args); |
| va_end(args); |
| return ret; |
| } |
| APU_DECLARE(int) apr_dbd_pvselect(const apr_dbd_driver_t *driver, apr_pool_t *pool, |
| apr_dbd_t *handle, apr_dbd_results_t **res, |
| apr_dbd_prepared_t *statement, int random,...) |
| { |
| int ret; |
| va_list args; |
| va_start(args, random); |
| ret = driver->pvselect(pool,handle,res,statement,random,args); |
| va_end(args); |
| return ret; |
| } |
