Initial Commit: libicnet

Change-Id: I10a72cb0d84b76553a85c168416b847f6a4ff5f6
Signed-off-by: Mauro Sardara <msardara+fdio@cisco.com>

1 files changed, 75 insertions, 0 deletions

diff --git a/icnet/transport/icnet_content_store.cc b/icnet/transport/icnet_content_store.cc
new file mode 100644
index 00000000..884ad2e7
--- /dev/null
+++ b/icnet/transport/icnet_content_store.cc
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * 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.
+ */
+
+#include "icnet_content_store.h"
+
+namespace icnet {
+
+ContentStore::ContentStore(std::size_t max_packets) : max_content_store_size_(max_packets) {
+}
+
+ContentStore::~ContentStore() {
+  content_store_hash_table_.clear();
+}
+
+void ContentStore::insert(const std::shared_ptr<ContentObject> &content_object) {
+  std::unique_lock<std::mutex> lock(cs_mutex_);
+  if (content_store_hash_table_.size() >= max_content_store_size_) {
+    // Evict item
+    content_store_hash_table_.erase(lru_list_.back());
+    lru_list_.pop_back();
+  }
+
+  // Insert new item
+  lru_list_.push_back(std::cref(content_object->getName()));
+  LRUList::iterator pos = lru_list_.end();
+  content_store_hash_table_[content_object->getName()] = CcnxContentStoreEntry(content_object, pos);
+
+}
+
+const std::shared_ptr<ContentObject> &ContentStore::find(const Interest &interest) {
+  std::unique_lock<std::mutex> lock(cs_mutex_);
+  ContentStoreHashTable::iterator it = content_store_hash_table_.find(interest.getName());
+  if (it != content_store_hash_table_.end()) {
+    if (it->second.second != lru_list_.begin()) {
+      // Move element to the top of the LRU list
+      lru_list_.splice(lru_list_.begin(), lru_list_, it->second.second);
+    }
+    return it->second.first;
+  } else {
+    return empty_reference_;
+  }
+}
+
+void ContentStore::erase(const Name &exact_name) {
+  std::unique_lock<std::mutex> lock(cs_mutex_);
+  ContentStoreHashTable::iterator it = content_store_hash_table_.find(exact_name);
+  lru_list_.erase(it->second.second);
+  content_store_hash_table_.erase(exact_name);
+}
+
+void ContentStore::setLimit(size_t max_packets) {
+  max_content_store_size_ = max_packets;
+}
+
+std::size_t ContentStore::getLimit() const {
+  return max_content_store_size_;
+}
+
+std::size_t ContentStore::size() const {
+  return content_store_hash_table_.size();
+}
+
+} // end namespace icnet
\ No newline at end of file