chunks: AIMD congestion control
refs #3636
Change-Id: Ia5e601201219048eb5c745bba9627e4916dac31a
diff --git a/tools/chunks/catchunks/aimd-statistics-collector.cpp b/tools/chunks/catchunks/aimd-statistics-collector.cpp
new file mode 100644
index 0000000..9462b4f
--- /dev/null
+++ b/tools/chunks/catchunks/aimd-statistics-collector.cpp
@@ -0,0 +1,54 @@
+/**
+ * Copyright (c) 2016, Regents of the University of California,
+ * Colorado State University,
+ * University Pierre & Marie Curie, Sorbonne University.
+ *
+ * This file is part of ndn-tools (Named Data Networking Essential Tools).
+ * See AUTHORS.md for complete list of ndn-tools authors and contributors.
+ *
+ * ndn-tools is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-tools is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * ndn-tools, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ *
+ * @author Weiwei Liu
+ */
+
+#include "aimd-statistics-collector.hpp"
+
+namespace ndn {
+namespace chunks {
+namespace aimd {
+
+StatisticsCollector::StatisticsCollector(PipelineInterestsAimd& pipeline, RttEstimator& rttEstimator,
+ std::ostream& osCwnd, std::ostream& osRtt)
+ : m_osCwnd(osCwnd)
+ , m_osRtt(osRtt)
+{
+ m_osCwnd << "time\tcwndsize\n";
+ m_osRtt << "segment\trtt\trttvar\tsrtt\trto\n";
+ pipeline.afterCwndChange.connect(
+ [this] (Milliseconds timeElapsed, double cwnd) {
+ m_osCwnd << timeElapsed.count() / 1000 << '\t' << cwnd << '\n';
+ });
+ rttEstimator.afterRttMeasurement.connect(
+ [this] (const RttRtoSample& rttSample) {
+ m_osRtt << rttSample.segNo << '\t'
+ << rttSample.rtt.count() << '\t'
+ << rttSample.rttVar.count() << '\t'
+ << rttSample.sRtt.count() << '\t'
+ << rttSample.rto.count() << '\n';
+ });
+}
+
+} // namespace aimd
+} // namespace chunks
+} // namespace ndn
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