1 files changed, 37 insertions, 0 deletions
diff --git a/third_party/libwebrtc/net/dcsctp/public/packet_observer.h b/third_party/libwebrtc/net/dcsctp/public/packet_observer.h
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index 0000000000..fe7567824f
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+++ b/third_party/libwebrtc/net/dcsctp/public/packet_observer.h
@@ -0,0 +1,37 @@
+/*
+ *  Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+#ifndef NET_DCSCTP_PUBLIC_PACKET_OBSERVER_H_
+#define NET_DCSCTP_PUBLIC_PACKET_OBSERVER_H_
+
+#include <stdint.h>
+
+#include "api/array_view.h"
+#include "net/dcsctp/public/types.h"
+
+namespace dcsctp {
+
+// A PacketObserver can be attached to a socket and will be called for
+// all sent and received packets.
+class PacketObserver {
+ public:
+  virtual ~PacketObserver() = default;
+  // Called when a packet is sent, with the current time (in milliseconds) as
+  // `now`, and the packet payload as `payload`.
+  virtual void OnSentPacket(TimeMs now,
+                            rtc::ArrayView<const uint8_t> payload) = 0;
+
+  // Called when a packet is received, with the current time (in milliseconds)
+  // as `now`, and the packet payload as `payload`.
+  virtual void OnReceivedPacket(TimeMs now,
+                                rtc::ArrayView<const uint8_t> payload) = 0;
+};
+}  // namespace dcsctp
+
+#endif  // NET_DCSCTP_PUBLIC_PACKET_OBSERVER_H_