From 3e64a42b1492e38bf033041c0eb1212542728cbd Mon Sep 17 00:00:00 2001
From: Fabio Alessandrelli <fabio.alessandrelli@gmail.com>
Date: Sun, 21 Apr 2019 04:57:53 +0200
Subject: Update to new DataChannel API.

New WebRTCLibDataChannel class act as PacketPeer.
Old WebRTCPeer (now WebRTCPeerConnection) now allows you to set
configuration (STUN/TURN) and creating multiple data channels.
Fixed many bugs and implemented most of the missing API.
---
 src/WebRTCLibDataChannel.hpp | 76 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 src/WebRTCLibDataChannel.hpp

(limited to 'src/WebRTCLibDataChannel.hpp')

diff --git a/src/WebRTCLibDataChannel.hpp b/src/WebRTCLibDataChannel.hpp
new file mode 100644
index 0000000..557d1da
--- /dev/null
+++ b/src/WebRTCLibDataChannel.hpp
@@ -0,0 +1,76 @@
+#ifndef WEBRTC_DATA_CHANNEL_H
+#define WEBRTC_DATA_CHANNEL_H
+
+#include <Godot.hpp> // Godot.hpp must go first, or windows builds breaks
+
+#include "api/peerconnectioninterface.h" // interface for all things needed from WebRTC
+#include "media/base/mediaengine.h" // needed for CreateModularPeerConnectionFactory
+
+#include "net/WebRTCDataChannelNative.hpp"
+#include "PoolArrays.hpp"
+#include <mutex>
+
+namespace godot_webrtc {
+
+class WebRTCLibDataChannel : public WebRTCDataChannelNative {
+	GODOT_CLASS(WebRTCLibDataChannel, WebRTCDataChannelNative);
+
+private:
+	class ChannelObserver : public webrtc::DataChannelObserver {
+	public:
+		WebRTCLibDataChannel *parent;
+
+		ChannelObserver(WebRTCLibDataChannel *parent);
+		void OnMessage(const webrtc::DataBuffer &buffer) override;
+		void OnStateChange() override; // UNUSED
+		void OnBufferedAmountChange(uint64_t previous_amount) override; // UNUSED
+	};
+
+	ChannelObserver observer;
+	rtc::scoped_refptr<webrtc::DataChannelInterface> channel;
+
+	std::mutex *mutex;
+	std::queue<godot::PoolByteArray> packet_queue;
+	godot::PoolByteArray current_packet;
+	std::string label;
+	std::string protocol;
+
+public:
+	static WebRTCLibDataChannel *new_data_channel(rtc::scoped_refptr<webrtc::DataChannelInterface> p_channel);
+	static void _register_methods();
+
+	void _init();
+
+	void bind_channel(rtc::scoped_refptr<webrtc::DataChannelInterface> p_channel);
+	void queue_packet(const uint8_t *data, uint32_t size);
+
+	/* WebRTCDataChannel */
+	void set_write_mode(godot_int mode);
+	godot_int get_write_mode() const;
+	bool was_string_packet() const;
+
+	ChannelState get_ready_state() const;
+	const char *get_label() const;
+	bool is_ordered() const;
+	int get_id() const;
+	int get_max_packet_life_time() const;
+	int get_max_retransmits() const;
+	const char *get_protocol() const;
+	bool is_negotiated() const;
+
+	godot_error poll();
+	void close();
+
+	/* PacketPeer */
+	virtual godot_error get_packet(const uint8_t **r_buffer, int *r_len);
+	virtual godot_error put_packet(const uint8_t *p_buffer, int p_len);
+	virtual godot_int get_available_packet_count() const;
+	virtual godot_int get_max_packet_size() const;
+
+	WebRTCLibDataChannel();
+	~WebRTCLibDataChannel();
+};
+
+} // namespace godot_webrtc
+
+#endif // WEBRTC_DATA_CHANNEL_H
-- 
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