servlib/storage/SQLGlobalStore.cc
changeset 0 2b3e5ec03512
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/storage/SQLGlobalStore.cc	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,90 @@
+/*
+ *    Copyright 2004-2006 Intel Corporation
+ * 
+ *    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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <dtn-config.h>
+#endif
+
+#if SQL_ENABLED
+
+#include "SQLGlobalStore.h"
+#include "SQLStore.h"
+#include "StorageConfig.h"
+
+namespace dtn {
+
+static const char* TABLENAME = "globals";
+
+SQLGlobalStore::SQLGlobalStore(oasys::SQLImplementation* impl)
+{
+    store_ = new SQLStore(TABLENAME, impl);
+    store_->create_table(this);
+}
+
+SQLGlobalStore::~SQLGlobalStore()
+{
+    NOTREACHED;
+}
+
+bool
+SQLGlobalStore::load()
+{
+    log_debug("loading global store");
+
+    oasys::SerializableObjectVector elements;
+    elements.push_back(this);
+    
+    int cnt = store_->elements(&elements);
+    
+    if (cnt == 1) {
+        log_debug("loaded next bundle id %d next reg id %d",
+                  next_bundleid_, next_regid_);
+
+    } else if (cnt == 0 && StorageConfig::instance()->tidy_) {
+        log_info("globals table does not exist... initializing it");
+        
+        next_bundleid_ = 0;
+        next_regid_ = 0;
+        
+        if (store_->insert(this) != 0) {
+            log_err("error initializing globals table");
+            exit(1);
+        }
+
+    } else {
+        log_err("error loading globals table");
+        exit(1);
+    }
+
+    return true;
+}
+
+bool
+SQLGlobalStore::update()
+{
+    log_debug("updating global store");
+    
+    if (store_->update(this, -1) == -1) {
+        log_err("error updating global store");
+        return false;
+    }
+    
+    return true;
+}
+
+} // namespace dtn
+
+#endif /* SQL_ENABLED */