text: /*
   *  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_ERROR_CAUSE_INVALID_STREAM_IDENTIFIER_CAUSE_H_
  #define NET_DCSCTP_PACKET_ERROR_CAUSE_INVALID_STREAM_IDENTIFIER_CAUSE_H_
  #include <stddef.h>
  #include <stdint.h>
  
  #include <string>
  #include <vector>
  
  #include "absl/strings/string_view.h"
  #include "api/array_view.h"
  #include "net/dcsctp/packet/error_cause/error_cause.h"
  #include "net/dcsctp/packet/tlv_trait.h"
  #include "net/dcsctp/public/types.h"
  
  namespace dcsctp {
  
  // https://tools.ietf.org/html/rfc4960#section-3.3.10.1
  struct InvalidStreamIdentifierCauseConfig : public ParameterConfig {
    static constexpr int kType = 1;
    static constexpr size_t kHeaderSize = 8;
    static constexpr size_t kVariableLengthAlignment = 0;
  };
  
  class InvalidStreamIdentifierCause
      : public Parameter,
        public TLVTrait<InvalidStreamIdentifierCauseConfig> {
   public:
    static constexpr int kType = InvalidStreamIdentifierCauseConfig::kType;
  
    explicit InvalidStreamIdentifierCause(StreamID stream_id)
        : stream_id_(stream_id) {}
  
    static absl::optional<InvalidStreamIdentifierCause> Parse(
        rtc::ArrayView<const uint8_t> data);
  
    void SerializeTo(std::vector<uint8_t>& out) const override;
    std::string ToString() const override;
  
    StreamID stream_id() const { return stream_id_; }
  
   private:
    StreamID stream_id_;
  };
  
  }  // namespace dcsctp
  
  #endif  // NET_DCSCTP_PACKET_ERROR_CAUSE_INVALID_STREAM_IDENTIFIER_CAUSE_H_
  