2013-06-18 01:59:55 +00:00
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/* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <ctype.h>
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#include <stdio.h>
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#include "apu_config.h"
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#include "apu.h"
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#include "apr_pools.h"
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#include "apr_dso.h"
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#include "apr_strings.h"
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#include "apr_hash.h"
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#include "apr_thread_mutex.h"
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#include "apr_lib.h"
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#include "apr_atomic.h"
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#include "apu_internal.h"
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#include "apr_dbd_internal.h"
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#include "apr_dbd.h"
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#include "apu_version.h"
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static apr_hash_t *drivers = NULL;
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static apr_uint32_t initialised = 0, in_init = 1;
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#define CLEANUP_CAST (apr_status_t (*)(void*))
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#if APR_HAS_THREADS
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/* deprecated, but required for existing providers. Existing and new
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* providers should be refactored to use a provider-specific mutex so
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* that different providers do not block one another.
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* In APR 1.3 this is no longer used for dso module loading, and
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* apu_dso_mutex_[un]lock is used instead.
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* In APR 2.0 this should become entirely local to libaprutil-2.so and
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* no longer be exported.
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*/
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static apr_thread_mutex_t* mutex = NULL;
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APU_DECLARE(apr_status_t) apr_dbd_mutex_lock()
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{
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return apr_thread_mutex_lock(mutex);
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}
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APU_DECLARE(apr_status_t) apr_dbd_mutex_unlock()
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{
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return apr_thread_mutex_unlock(mutex);
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}
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#else
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APU_DECLARE(apr_status_t) apr_dbd_mutex_lock() {
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return APR_SUCCESS;
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}
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APU_DECLARE(apr_status_t) apr_dbd_mutex_unlock() {
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return APR_SUCCESS;
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}
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#endif
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#if !APU_DSO_BUILD
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#define DRIVER_LOAD(name,driver,pool) \
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{ \
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extern const apr_dbd_driver_t driver; \
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apr_hash_set(drivers,name,APR_HASH_KEY_STRING,&driver); \
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if (driver.init) { \
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driver.init(pool); \
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} \
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}
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#endif
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static apr_status_t apr_dbd_term(void *ptr)
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{
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/* set drivers to NULL so init can work again */
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drivers = NULL;
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/* Everything else we need is handled by cleanups registered
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* when we created mutexes and loaded DSOs
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*/
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return APR_SUCCESS;
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}
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APU_DECLARE(apr_status_t) apr_dbd_init(apr_pool_t *pool)
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{
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apr_status_t ret = APR_SUCCESS;
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apr_pool_t *parent;
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if (apr_atomic_inc32(&initialised)) {
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apr_atomic_set32(&initialised, 1); /* prevent wrap-around */
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while (apr_atomic_read32(&in_init)) /* wait until we get fully inited */
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;
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return APR_SUCCESS;
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}
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/* Top level pool scope, need process-scope lifetime */
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2013-11-25 22:15:47 +00:00
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for (parent = apr_pool_parent_get(pool);
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parent && parent != pool;
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parent = apr_pool_parent_get(pool))
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pool = parent;
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2013-06-18 01:59:55 +00:00
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#if APU_DSO_BUILD
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/* deprecate in 2.0 - permit implicit initialization */
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apu_dso_init(pool);
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#endif
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drivers = apr_hash_make(pool);
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#if APR_HAS_THREADS
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ret = apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_DEFAULT, pool);
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/* This already registers a pool cleanup */
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#endif
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#if !APU_DSO_BUILD
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/* Load statically-linked drivers: */
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#if APU_HAVE_MYSQL
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DRIVER_LOAD("mysql", apr_dbd_mysql_driver, pool);
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#endif
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#if APU_HAVE_PGSQL
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DRIVER_LOAD("pgsql", apr_dbd_pgsql_driver, pool);
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#endif
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#if APU_HAVE_SQLITE3
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DRIVER_LOAD("sqlite3", apr_dbd_sqlite3_driver, pool);
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#endif
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#if APU_HAVE_SQLITE2
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DRIVER_LOAD("sqlite2", apr_dbd_sqlite2_driver, pool);
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#endif
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#if APU_HAVE_ORACLE
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DRIVER_LOAD("oracle", apr_dbd_oracle_driver, pool);
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#endif
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#if APU_HAVE_ODBC
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DRIVER_LOAD("odbc", apr_dbd_odbc_driver, pool);
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#endif
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#if APU_HAVE_SOME_OTHER_BACKEND
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DRIVER_LOAD("firebird", apr_dbd_other_driver, pool);
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#endif
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#endif /* APU_DSO_BUILD */
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apr_pool_cleanup_register(pool, NULL, apr_dbd_term,
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apr_pool_cleanup_null);
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apr_atomic_dec32(&in_init);
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return ret;
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}
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APU_DECLARE(apr_status_t) apr_dbd_get_driver(apr_pool_t *pool, const char *name,
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const apr_dbd_driver_t **driver)
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{
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#if APU_DSO_BUILD
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char modname[32];
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char symname[34];
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apr_dso_handle_sym_t symbol;
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#endif
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apr_status_t rv;
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#if APU_DSO_BUILD
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rv = apu_dso_mutex_lock();
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if (rv) {
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return rv;
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}
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#endif
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*driver = apr_hash_get(drivers, name, APR_HASH_KEY_STRING);
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if (*driver) {
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#if APU_DSO_BUILD
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apu_dso_mutex_unlock();
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#endif
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return APR_SUCCESS;
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}
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#if APU_DSO_BUILD
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/* The driver DSO must have exactly the same lifetime as the
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* drivers hash table; ignore the passed-in pool */
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pool = apr_hash_pool_get(drivers);
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#if defined(NETWARE)
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apr_snprintf(modname, sizeof(modname), "dbd%s.nlm", name);
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2013-11-25 22:15:47 +00:00
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#elif defined(WIN32) || defined(__CYGWIN__)
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2013-06-18 01:59:55 +00:00
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apr_snprintf(modname, sizeof(modname),
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"apr_dbd_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".dll", name);
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#else
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apr_snprintf(modname, sizeof(modname),
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"apr_dbd_%s-" APU_STRINGIFY(APU_MAJOR_VERSION) ".so", name);
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#endif
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apr_snprintf(symname, sizeof(symname), "apr_dbd_%s_driver", name);
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rv = apu_dso_load(NULL, &symbol, modname, symname, pool);
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if (rv == APR_SUCCESS || rv == APR_EINIT) { /* previously loaded?!? */
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*driver = symbol;
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name = apr_pstrdup(pool, name);
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apr_hash_set(drivers, name, APR_HASH_KEY_STRING, *driver);
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rv = APR_SUCCESS;
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if ((*driver)->init) {
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(*driver)->init(pool);
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}
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}
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apu_dso_mutex_unlock();
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2013-11-25 22:15:47 +00:00
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#else /* not builtin and !APU_DSO_BUILD => not implemented */
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2013-06-18 01:59:55 +00:00
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rv = APR_ENOTIMPL;
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#endif
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return rv;
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}
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APU_DECLARE(apr_status_t) apr_dbd_open_ex(const apr_dbd_driver_t *driver,
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apr_pool_t *pool, const char *params,
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apr_dbd_t **handle,
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const char **error)
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{
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apr_status_t rv;
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*handle = (driver->open)(pool, params, error);
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if (*handle == NULL) {
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return APR_EGENERAL;
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}
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rv = apr_dbd_check_conn(driver, pool, *handle);
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if ((rv != APR_SUCCESS) && (rv != APR_ENOTIMPL)) {
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/* XXX: rv is APR error code, but apr_dbd_error() takes int! */
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if (error) {
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*error = apr_dbd_error(driver, *handle, rv);
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}
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apr_dbd_close(driver, *handle);
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return APR_EGENERAL;
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}
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return APR_SUCCESS;
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}
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APU_DECLARE(apr_status_t) apr_dbd_open(const apr_dbd_driver_t *driver,
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apr_pool_t *pool, const char *params,
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apr_dbd_t **handle)
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{
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return apr_dbd_open_ex(driver,pool,params,handle,NULL);
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}
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APU_DECLARE(int) apr_dbd_transaction_start(const apr_dbd_driver_t *driver,
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apr_pool_t *pool, apr_dbd_t *handle,
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apr_dbd_transaction_t **trans)
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{
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int ret = driver->start_transaction(pool, handle, trans);
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if (*trans) {
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apr_pool_cleanup_register(pool, *trans,
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CLEANUP_CAST driver->end_transaction,
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apr_pool_cleanup_null);
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}
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return ret;
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}
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APU_DECLARE(int) apr_dbd_transaction_end(const apr_dbd_driver_t *driver,
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apr_pool_t *pool,
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apr_dbd_transaction_t *trans)
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{
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apr_pool_cleanup_kill(pool, trans, CLEANUP_CAST driver->end_transaction);
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return driver->end_transaction(trans);
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}
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APU_DECLARE(int) apr_dbd_transaction_mode_get(const apr_dbd_driver_t *driver,
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apr_dbd_transaction_t *trans)
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{
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return driver->transaction_mode_get(trans);
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}
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APU_DECLARE(int) apr_dbd_transaction_mode_set(const apr_dbd_driver_t *driver,
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apr_dbd_transaction_t *trans,
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int mode)
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{
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return driver->transaction_mode_set(trans, mode);
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}
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APU_DECLARE(apr_status_t) apr_dbd_close(const apr_dbd_driver_t *driver,
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apr_dbd_t *handle)
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{
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return driver->close(handle);
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}
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APU_DECLARE(const char*) apr_dbd_name(const apr_dbd_driver_t *driver)
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{
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return driver->name;
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}
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APU_DECLARE(void*) apr_dbd_native_handle(const apr_dbd_driver_t *driver,
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apr_dbd_t *handle)
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{
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return driver->native_handle(handle);
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}
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APU_DECLARE(int) apr_dbd_check_conn(const apr_dbd_driver_t *driver,
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apr_pool_t *pool,
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apr_dbd_t *handle)
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{
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return driver->check_conn(pool, handle);
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}
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APU_DECLARE(int) apr_dbd_set_dbname(const apr_dbd_driver_t *driver,
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apr_pool_t *pool,
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apr_dbd_t *handle, const char *name)
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{
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return driver->set_dbname(pool,handle,name);
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}
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APU_DECLARE(int) apr_dbd_query(const apr_dbd_driver_t *driver,
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apr_dbd_t *handle,
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int *nrows, const char *statement)
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{
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return driver->query(handle,nrows,statement);
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}
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APU_DECLARE(int) apr_dbd_select(const apr_dbd_driver_t *driver,
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apr_pool_t *pool,
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apr_dbd_t *handle, apr_dbd_results_t **res,
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const char *statement, int random)
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{
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return driver->select(pool,handle,res,statement,random);
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}
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APU_DECLARE(int) apr_dbd_num_cols(const apr_dbd_driver_t *driver,
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apr_dbd_results_t *res)
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{
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return driver->num_cols(res);
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}
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APU_DECLARE(int) apr_dbd_num_tuples(const apr_dbd_driver_t *driver,
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apr_dbd_results_t *res)
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{
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return driver->num_tuples(res);
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}
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APU_DECLARE(int) apr_dbd_get_row(const apr_dbd_driver_t *driver,
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apr_pool_t *pool,
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apr_dbd_results_t *res, apr_dbd_row_t **row,
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int rownum)
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{
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return driver->get_row(pool,res,row,rownum);
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}
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APU_DECLARE(const char*) apr_dbd_get_entry(const apr_dbd_driver_t *driver,
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apr_dbd_row_t *row, int col)
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{
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return driver->get_entry(row,col);
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}
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APU_DECLARE(const char*) apr_dbd_get_name(const apr_dbd_driver_t *driver,
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apr_dbd_results_t *res, int col)
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{
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return driver->get_name(res,col);
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}
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|
|
|
APU_DECLARE(const char*) apr_dbd_error(const apr_dbd_driver_t *driver,
|
|
|
|
apr_dbd_t *handle, int errnum)
|
|
|
|
{
|
|
|
|
return driver->error(handle,errnum);
|
|
|
|
}
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|
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|
|
|
APU_DECLARE(const char*) apr_dbd_escape(const apr_dbd_driver_t *driver,
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|
apr_pool_t *pool, const char *string,
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|
|
apr_dbd_t *handle)
|
|
|
|
{
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|
|
|
return driver->escape(pool,string,handle);
|
|
|
|
}
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|
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|
|
|
APU_DECLARE(int) apr_dbd_prepare(const apr_dbd_driver_t *driver,
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|
|
apr_pool_t *pool,
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|
|
apr_dbd_t *handle, const char *query,
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|
|
|
const char *label,
|
|
|
|
apr_dbd_prepared_t **statement)
|
|
|
|
{
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|
|
|
size_t qlen;
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|
|
|
int i, nargs = 0, nvals = 0;
|
|
|
|
char *p, *pq;
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|
|
const char *q;
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|
|
|
apr_dbd_type_e *t;
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|
|
|
|
|
|
|
if (!driver->pformat) {
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|
|
return APR_ENOTIMPL;
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|
|
}
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|
|
|
|
|
/* find the number of parameters in the query */
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|
|
|
for (q = query; *q; q++) {
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|
|
if (q[0] == '%') {
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|
|
if (apr_isalpha(q[1])) {
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|
|
nargs++;
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|
|
} else if (q[1] == '%') {
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|
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|
q++;
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|
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|
}
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|
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|
}
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|
|
|
}
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|
nvals = nargs;
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|
|
|
|
|
|
qlen = strlen(query) +
|
|
|
|
nargs * (strlen(driver->pformat) + sizeof(nargs) * 3 + 2) + 1;
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|
pq = apr_palloc(pool, qlen);
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|
t = apr_pcalloc(pool, sizeof(*t) * nargs);
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|
|
|
for (p = pq, q = query, i = 0; *q; q++) {
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|
|
if (q[0] == '%') {
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|
|
|
if (apr_isalpha(q[1])) {
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|
|
|
switch (q[1]) {
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|
|
|
case 'd': t[i] = APR_DBD_TYPE_INT; break;
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|
case 'u': t[i] = APR_DBD_TYPE_UINT; break;
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|
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|
case 'f': t[i] = APR_DBD_TYPE_FLOAT; break;
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|
|
|
case 'h':
|
|
|
|
switch (q[2]) {
|
|
|
|
case 'h':
|
|
|
|
switch (q[3]){
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|
|
case 'd': t[i] = APR_DBD_TYPE_TINY; q += 2; break;
|
|
|
|
case 'u': t[i] = APR_DBD_TYPE_UTINY; q += 2; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'd': t[i] = APR_DBD_TYPE_SHORT; q++; break;
|
|
|
|
case 'u': t[i] = APR_DBD_TYPE_USHORT; q++; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'l':
|
|
|
|
switch (q[2]) {
|
|
|
|
case 'l':
|
|
|
|
switch (q[3]){
|
|
|
|
case 'd': t[i] = APR_DBD_TYPE_LONGLONG; q += 2; break;
|
|
|
|
case 'u': t[i] = APR_DBD_TYPE_ULONGLONG; q += 2; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'd': t[i] = APR_DBD_TYPE_LONG; q++; break;
|
|
|
|
case 'u': t[i] = APR_DBD_TYPE_ULONG; q++; break;
|
|
|
|
case 'f': t[i] = APR_DBD_TYPE_DOUBLE; q++; break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'p':
|
|
|
|
if (q[2] == 'D') {
|
|
|
|
switch (q[3]) {
|
|
|
|
case 't': t[i] = APR_DBD_TYPE_TEXT; q += 2; break;
|
|
|
|
case 'i': t[i] = APR_DBD_TYPE_TIME; q += 2; break;
|
|
|
|
case 'd': t[i] = APR_DBD_TYPE_DATE; q += 2; break;
|
|
|
|
case 'a': t[i] = APR_DBD_TYPE_DATETIME; q += 2; break;
|
|
|
|
case 's': t[i] = APR_DBD_TYPE_TIMESTAMP; q += 2; break;
|
|
|
|
case 'z': t[i] = APR_DBD_TYPE_ZTIMESTAMP; q += 2; break;
|
|
|
|
case 'b': t[i] = APR_DBD_TYPE_BLOB; q += 2; break;
|
|
|
|
case 'c': t[i] = APR_DBD_TYPE_CLOB; q += 2; break;
|
|
|
|
case 'n': t[i] = APR_DBD_TYPE_NULL; q += 2; break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
q++;
|
|
|
|
|
|
|
|
switch (t[i]) {
|
|
|
|
case APR_DBD_TYPE_NONE: /* by default, we expect strings */
|
|
|
|
t[i] = APR_DBD_TYPE_STRING;
|
|
|
|
break;
|
|
|
|
case APR_DBD_TYPE_BLOB:
|
|
|
|
case APR_DBD_TYPE_CLOB: /* three (3) more values passed in */
|
|
|
|
nvals += 3;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* insert database specific parameter reference */
|
|
|
|
p += apr_snprintf(p, qlen - (p - pq), driver->pformat, ++i);
|
|
|
|
} else if (q[1] == '%') { /* reduce %% to % */
|
|
|
|
*p++ = *q++;
|
|
|
|
} else {
|
|
|
|
*p++ = *q;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
*p++ = *q;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
*p = '\0';
|
|
|
|
|
|
|
|
return driver->prepare(pool,handle,pq,label,nargs,nvals,t,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,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,args);
|
|
|
|
}
|
|
|
|
|
|
|
|
APU_DECLARE_NONSTD(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_NONSTD(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;
|
|
|
|
}
|
|
|
|
|
|
|
|
APU_DECLARE(int) apr_dbd_pbquery(const apr_dbd_driver_t *driver,
|
|
|
|
apr_pool_t *pool,
|
|
|
|
apr_dbd_t *handle, int *nrows,
|
|
|
|
apr_dbd_prepared_t *statement,
|
|
|
|
const void **args)
|
|
|
|
{
|
|
|
|
return driver->pbquery(pool,handle,nrows,statement,args);
|
|
|
|
}
|
|
|
|
|
|
|
|
APU_DECLARE(int) apr_dbd_pbselect(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,
|
|
|
|
const void **args)
|
|
|
|
{
|
|
|
|
return driver->pbselect(pool,handle,res,statement,random,args);
|
|
|
|
}
|
|
|
|
|
|
|
|
APU_DECLARE_NONSTD(int) apr_dbd_pvbquery(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->pvbquery(pool,handle,nrows,statement,args);
|
|
|
|
va_end(args);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
APU_DECLARE_NONSTD(int) apr_dbd_pvbselect(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->pvbselect(pool,handle,res,statement,random,args);
|
|
|
|
va_end(args);
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
APU_DECLARE(apr_status_t) apr_dbd_datum_get(const apr_dbd_driver_t *driver,
|
|
|
|
apr_dbd_row_t *row, int col,
|
|
|
|
apr_dbd_type_e type, void *data)
|
|
|
|
{
|
|
|
|
return driver->datum_get(row,col,type,data);
|
|
|
|
}
|