--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/storage/BundleStore.h Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,96 @@
+/*
+ * 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.
+ */
+
+#ifndef _BUNDLE_STORE_H_
+#define _BUNDLE_STORE_H_
+
+#include <oasys/debug/DebugUtils.h>
+#include <oasys/serialize/TypeShims.h>
+#include <oasys/storage/InternalKeyDurableTable.h>
+#include <oasys/util/OpenFdCache.h>
+#include <oasys/util/Singleton.h>
+#include "DTNStorageConfig.h"
+
+namespace dtn {
+
+class Bundle;
+
+/**
+ * The class for bundle storage is an instantiation of an oasys
+ * durable table to store the bundle metadata, tracking logic for the
+ * storage total, and other support classes for the payloads.
+ */
+class BundleStore : public oasys::Singleton<BundleStore, false> {
+public:
+ /// Helper class typedefs
+ typedef oasys::OpenFdCache<std::string> FdCache;
+ typedef oasys::InternalKeyDurableTable<
+ oasys::UIntShim, u_int32_t, Bundle> BundleTable;
+ typedef BundleTable::iterator iterator;
+
+ /**
+ * Boot time initializer that takes as a parameter the storage
+ * configuration to use.
+ */
+ static int init(const DTNStorageConfig& cfg,
+ oasys::DurableStore* store);
+
+ /**
+ * Constructor.
+ */
+ BundleStore(const DTNStorageConfig& cfg);
+
+ /// Add a new bundle
+ bool add(Bundle* bundle);
+
+ /// Retrieve a bundle
+ Bundle* get(u_int32_t bundleid);
+
+ /// Update the metabundle for the bundle
+ bool update(Bundle* bundle);
+
+ /// Delete the bundle
+ bool del(Bundle* bundle);
+
+ /// Return a new iterator
+ iterator* new_iterator();
+
+ /// Close down the table
+ void close();
+
+ /// @{ Accessors
+ const std::string& payload_dir() { return cfg_.payload_dir_; }
+ u_int64_t payload_quota() { return cfg_.payload_quota_; }
+ FdCache* payload_fdcache() { return &payload_fdcache_; }
+ u_int64_t total_size() { return total_size_; }
+ /// @}
+
+protected:
+ friend class BundleDaemon;
+
+ /// When the bundle store is loaded at boot time, we need to reset
+ /// the in-memory total_size_ parameter
+ void set_total_size(u_int64_t sz) { total_size_ = sz; }
+
+ const DTNStorageConfig& cfg_; ///< Storage configuration
+ BundleTable bundles_; ///< Bundle metabundle table
+ FdCache payload_fdcache_; ///< File descriptor cache
+ u_int64_t total_size_; ///M Total size in the data store
+};
+
+} // namespace dtn
+
+#endif /* _BUNDLE_STORE_H_ */