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[bottlenecks.git] / rubbos / app / httpd-2.0.64 / server / provider.c

diff --git a/rubbos/app/httpd-2.0.64/server/provider.c b/rubbos/app/httpd-2.0.64/server/provider.c
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+++ b/rubbos/app/httpd-2.0.64/server/provider.c
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+/* 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_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);
+}