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/* Copyright 2002-2006 The Apache Software Foundation or its licensors, as
* applicable.
*
* Licensed 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_pools.h"
#include "apr_hash.h"
#include "apr_tables.h"
#include "apr_strings.h"
#include "ap_provider.h"
static apr_hash_t *global_providers = NULL;
static apr_hash_t *global_providers_names = NULL;
static apr_status_t cleanup_global_providers(void *ctx)
{
global_providers = NULL;
global_providers_names = NULL;
return APR_SUCCESS;
}
AP_DECLARE(apr_status_t) ap_register_provider(apr_pool_t *pool,
const char *provider_group,
const char *provider_name,
const char *provider_version,
const void *provider)
{
apr_hash_t *provider_group_hash, *provider_version_hash;
if (global_providers == NULL) {
global_providers = apr_hash_make(pool);
global_providers_names = apr_hash_make(pool);;
apr_pool_cleanup_register(pool, NULL, cleanup_global_providers,
apr_pool_cleanup_null);
}
/* First, deal with storing the provider away */
provider_group_hash = apr_hash_get(global_providers, provider_group,
APR_HASH_KEY_STRING);
if (!provider_group_hash) {
provider_group_hash = apr_hash_make(pool);
apr_hash_set(global_providers, provider_group, APR_HASH_KEY_STRING,
provider_group_hash);
}
provider_version_hash = apr_hash_get(provider_group_hash, provider_name,
APR_HASH_KEY_STRING);
if (!provider_version_hash) {
provider_version_hash = apr_hash_make(pool);
apr_hash_set(provider_group_hash, provider_name, APR_HASH_KEY_STRING,
provider_version_hash);
}
/* just set it. no biggy if it was there before. */
apr_hash_set(provider_version_hash, provider_version, APR_HASH_KEY_STRING,
provider);
/* Now, tuck away the provider names in an easy-to-get format */
provider_group_hash = apr_hash_get(global_providers_names, provider_group,
APR_HASH_KEY_STRING);
if (!provider_group_hash) {
provider_group_hash = apr_hash_make(pool);
apr_hash_set(global_providers_names, provider_group, APR_HASH_KEY_STRING,
provider_group_hash);
}
provider_version_hash = apr_hash_get(provider_group_hash, provider_version,
APR_HASH_KEY_STRING);
if (!provider_version_hash) {
provider_version_hash = apr_hash_make(pool);
apr_hash_set(provider_group_hash, provider_version, APR_HASH_KEY_STRING,
provider_version_hash);
}
/* just set it. no biggy if it was there before. */
apr_hash_set(provider_version_hash, provider_name, APR_HASH_KEY_STRING,
provider_name);
return APR_SUCCESS;
}
AP_DECLARE(void *) ap_lookup_provider(const char *provider_group,
const char *provider_name,
const char *provider_version)
{
apr_hash_t *provider_group_hash, *provider_name_hash;
if (global_providers == NULL) {
return NULL;
}
provider_group_hash = apr_hash_get(global_providers, provider_group,
APR_HASH_KEY_STRING);
if (provider_group_hash == NULL) {
return NULL;
}
provider_name_hash = apr_hash_get(provider_group_hash, provider_name,
APR_HASH_KEY_STRING);
if (provider_name_hash == NULL) {
return NULL;
}
return apr_hash_get(provider_name_hash, provider_version,
APR_HASH_KEY_STRING);
}
AP_DECLARE(apr_array_header_t *) ap_list_provider_names(apr_pool_t *pool,
const char *provider_group,
const char *provider_version)
{
apr_array_header_t *ret = apr_array_make(pool, 10, sizeof(ap_list_provider_names_t));
ap_list_provider_names_t *entry;
apr_hash_t *provider_group_hash, *h;
apr_hash_index_t *hi;
char *val, *key;
if (global_providers_names == NULL) {
return ret;
}
provider_group_hash = apr_hash_get(global_providers_names, provider_group,
APR_HASH_KEY_STRING);
if (provider_group_hash == NULL) {
return ret;
}
h = apr_hash_get(provider_group_hash, provider_version,
APR_HASH_KEY_STRING);
if (h == NULL) {
return ret;
}
for (hi = apr_hash_first(pool, h); hi; hi = apr_hash_next(hi)) {
apr_hash_this(hi, (void *)&key, NULL, (void *)&val);
entry = apr_array_push(ret);
entry->provider_name = apr_pstrdup(pool, val);
}
return ret;
}
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