aboutsummaryrefslogtreecommitdiffstats
path: root/libtransport/src/hicn/transport/protocols/incremental_indexer.h
diff options
context:
space:
mode:
Diffstat (limited to 'libtransport/src/hicn/transport/protocols/incremental_indexer.h')
-rw-r--r--libtransport/src/hicn/transport/protocols/incremental_indexer.h139
1 files changed, 139 insertions, 0 deletions
diff --git a/libtransport/src/hicn/transport/protocols/incremental_indexer.h b/libtransport/src/hicn/transport/protocols/incremental_indexer.h
new file mode 100644
index 000000000..ea84d645a
--- /dev/null
+++ b/libtransport/src/hicn/transport/protocols/incremental_indexer.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2017-2019 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.
+ */
+
+#pragma once
+
+#include <hicn/transport/protocols/indexer.h>
+
+#include <hicn/transport/errors/runtime_exception.h>
+#include <hicn/transport/errors/unexpected_manifest_exception.h>
+#include <hicn/transport/protocols/reassembly.h>
+#include <hicn/transport/protocols/verification_manager.h>
+#include <hicn/transport/utils/literals.h>
+
+#include <deque>
+
+namespace transport {
+
+namespace interface {
+class ConsumerSocket;
+}
+
+namespace protocol {
+
+class Reassembly;
+class TransportProtocol;
+
+class IncrementalIndexer : public Indexer {
+ public:
+ IncrementalIndexer(interface::ConsumerSocket *icn_socket,
+ TransportProtocol *transport, Reassembly *reassembly)
+ : socket_(icn_socket),
+ reassembly_(reassembly),
+ transport_protocol_(transport),
+ final_suffix_(std::numeric_limits<uint32_t>::max()),
+ first_suffix_(0),
+ next_download_suffix_(0),
+ next_reassembly_suffix_(0),
+ verification_manager_(
+ std::make_unique<SignatureVerificationManager>(icn_socket)) {
+ if (reassembly_) {
+ reassembly_->setIndexer(this);
+ }
+ }
+
+ IncrementalIndexer(const IncrementalIndexer &) = delete;
+
+ IncrementalIndexer(IncrementalIndexer &&other)
+ : socket_(other.socket_),
+ reassembly_(other.reassembly_),
+ transport_protocol_(other.transport_protocol_),
+ final_suffix_(other.final_suffix_),
+ first_suffix_(other.first_suffix_),
+ next_download_suffix_(other.next_download_suffix_),
+ next_reassembly_suffix_(other.next_reassembly_suffix_),
+ verification_manager_(std::move(other.verification_manager_)) {
+ if (reassembly_) {
+ reassembly_->setIndexer(this);
+ }
+ }
+
+ /**
+ *
+ */
+ virtual ~IncrementalIndexer() {}
+
+ TRANSPORT_ALWAYS_INLINE virtual void reset(
+ std::uint32_t offset = 0) override {
+ final_suffix_ = std::numeric_limits<uint32_t>::max();
+ next_download_suffix_ = offset;
+ next_reassembly_suffix_ = offset;
+ }
+
+ /**
+ * Retrieve from the manifest the next suffix to retrieve.
+ */
+ TRANSPORT_ALWAYS_INLINE virtual uint32_t getNextSuffix() override {
+ return next_download_suffix_ <= final_suffix_ ? next_download_suffix_++
+ : IndexManager::invalid_index;
+ }
+
+ TRANSPORT_ALWAYS_INLINE virtual void setFirstSuffix(
+ uint32_t suffix) override {
+ first_suffix_ = suffix;
+ }
+
+ /**
+ * Retrive the next segment to be reassembled.
+ */
+ TRANSPORT_ALWAYS_INLINE virtual uint32_t getNextReassemblySegment() override {
+ return next_reassembly_suffix_ <= final_suffix_
+ ? next_reassembly_suffix_++
+ : IndexManager::invalid_index;
+ }
+
+ TRANSPORT_ALWAYS_INLINE virtual bool isFinalSuffixDiscovered() override {
+ return final_suffix_ != std::numeric_limits<uint32_t>::max();
+ }
+
+ TRANSPORT_ALWAYS_INLINE virtual uint32_t getFinalSuffix() override {
+ return final_suffix_;
+ }
+
+ void onContentObject(core::Interest::Ptr &&interest,
+ core::ContentObject::Ptr &&content_object) override;
+
+ TRANSPORT_ALWAYS_INLINE void setReassembly(Reassembly *reassembly) {
+ reassembly_ = reassembly;
+
+ if (reassembly_) {
+ reassembly_->setIndexer(this);
+ }
+ }
+
+ protected:
+ interface::ConsumerSocket *socket_;
+ Reassembly *reassembly_;
+ TransportProtocol *transport_protocol_;
+ uint32_t final_suffix_;
+ uint32_t first_suffix_;
+ uint32_t next_download_suffix_;
+ uint32_t next_reassembly_suffix_;
+ std::unique_ptr<VerificationManager> verification_manager_;
+};
+
+} // end namespace protocol
+
+} // end namespace transport