servlib/bundling/BundleInfoCache.cc
changeset 0 2b3e5ec03512
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/servlib/bundling/BundleInfoCache.cc	Thu Apr 21 14:57:45 2011 +0100
@@ -0,0 +1,72 @@
+/*
+ *    Copyright 2007-2008 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
+
+#include "BundleInfoCache.h"
+
+namespace dtn {
+
+//----------------------------------------------------------------------
+BundleInfoCache::BundleInfoCache(const std::string& logpath, size_t capacity)
+    : cache_(logpath, CacheCapacityHelper(capacity),
+             false /* no reorder on get() */ )
+{
+}
+
+//----------------------------------------------------------------------
+bool
+BundleInfoCache::add_entry(const Bundle* bundle, const EndpointID& prevhop)
+{
+    GbofId id(bundle->source(),
+              bundle->creation_ts(),
+              bundle->is_fragment(),
+              bundle->payload().length(),
+              bundle->frag_offset());
+    
+    Cache::Handle h;
+    bool ok = cache_.put_and_pin(id, prevhop, &h);
+    if (!ok) {
+        return false;
+    }
+    
+    h.unpin();
+    return true;
+}
+
+//----------------------------------------------------------------------
+bool
+BundleInfoCache::lookup(const Bundle* bundle, EndpointID* prevhop)
+{
+    GbofId id(bundle->source(),
+              bundle->creation_ts(),
+              bundle->is_fragment(),
+              bundle->payload().length(),
+              bundle->frag_offset());
+
+    return cache_.get(id, prevhop);
+}
+
+//----------------------------------------------------------------------
+void
+BundleInfoCache::evict_all()
+{
+    cache_.evict_all();
+}
+
+} // namespace dtn