provider.c revision 26a4456dd6f1a5d7d7fff766551461a578687c4a
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2004 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
#include "apr_pools.h"
#include "apr_hash.h"
#include "ap_provider.h"
static apr_hash_t *global_providers = NULL;
static apr_status_t cleanup_global_providers(void *ctx)
{
global_providers = 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;
apr_hash_t *provider_version_hash;
if (global_providers == NULL) {
global_providers = apr_hash_make(pool);
apr_pool_cleanup_register(pool, NULL, cleanup_global_providers,
apr_pool_cleanup_null);
}
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);
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);
}