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/*
* 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_PACKET_CHUNK_FORWARD_TSN_COMMON_H_
#define NET_DCSCTP_PACKET_CHUNK_FORWARD_TSN_COMMON_H_
#include <stdint.h>
#include <utility>
#include <vector>
#include "api/array_view.h"
#include "net/dcsctp/packet/chunk/chunk.h"
namespace dcsctp {
// Base class for both ForwardTsnChunk and IForwardTsnChunk
class AnyForwardTsnChunk : public Chunk {
public:
struct SkippedStream {
SkippedStream(StreamID stream_id, SSN ssn)
: stream_id(stream_id), ssn(ssn), unordered(false), mid(0) {}
SkippedStream(IsUnordered unordered, StreamID stream_id, MID mid)
: stream_id(stream_id), ssn(0), unordered(unordered), mid(mid) {}
StreamID stream_id;
// Set for FORWARD_TSN
SSN ssn;
// Set for I-FORWARD_TSN
IsUnordered unordered;
MID mid;
bool operator==(const SkippedStream& other) const {
return stream_id == other.stream_id && ssn == other.ssn &&
unordered == other.unordered && mid == other.mid;
}
};
AnyForwardTsnChunk(TSN new_cumulative_tsn,
std::vector<SkippedStream> skipped_streams)
: new_cumulative_tsn_(new_cumulative_tsn),
skipped_streams_(std::move(skipped_streams)) {}
TSN new_cumulative_tsn() const { return new_cumulative_tsn_; }
webrtc::ArrayView<const SkippedStream> skipped_streams() const {
return skipped_streams_;
}
private:
TSN new_cumulative_tsn_;
std::vector<SkippedStream> skipped_streams_;
};
} // namespace dcsctp
#endif // NET_DCSCTP_PACKET_CHUNK_FORWARD_TSN_COMMON_H_
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