P2P - Libdatachannel/RTC Library Files

libdatachannel/include/rtc/reliability.hpp

@@ -0,0 +1,43 @@
+/**
+ * Copyright (c) 2019 Paul-Louis Ageneau
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef RTC_RELIABILITY_H
+#define RTC_RELIABILITY_H
+
+#include "common.hpp"
+
+#include <chrono>
+
+namespace rtc {
+
+struct Reliability {
+	// It true, the channel does not enforce message ordering and out-of-order delivery is allowed
+	bool unordered = false;
+
+	// If both maxPacketLifeTime or maxRetransmits are unset, the channel is reliable.
+	// If either maxPacketLifeTime or maxRetransmits is set, the channel is unreliable.
+	// (The settings are exclusive so both maxPacketLifetime and maxRetransmits must not be set.)
+
+	// Time window during which transmissions and retransmissions may occur
+	optional<std::chrono::milliseconds> maxPacketLifeTime;
+
+	// Maximum number of retransmissions that are attempted
+	optional<unsigned int> maxRetransmits;
+
+	// For backward compatibility, do not use
+	enum class Type { Reliable = 0, Rexmit, Timed };
+	union {
+		Type typeDeprecated = Type::Reliable;
+		[[deprecated("Use maxPacketLifeTime or maxRetransmits")]] Type type;
+	};
+	variant<int, std::chrono::milliseconds> rexmit = 0;
+};
+
+} // namespace rtc
+
+#endif