xref: /aosp_15_r20/external/webrtc/net/dcsctp/packet/error_cause/out_of_resource_error_cause.cc (revision d9f758449e529ab9291ac668be2861e7a55c2422) 
1 /*
2  *  Copyright (c) 2021 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 #include "net/dcsctp/packet/error_cause/out_of_resource_error_cause.h"
11 
12 #include <stdint.h>
13 
14 #include <vector>
15 
16 #include "absl/types/optional.h"
17 #include "api/array_view.h"
18 
19 namespace dcsctp {
20 
21 // https://tools.ietf.org/html/rfc4960#section-3.3.10.4
22 
23 //  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
24 //  |     Cause Code=4              |      Cause Length=4           |
25 //  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
26 constexpr int OutOfResourceErrorCause::kType;
27 
Parse(rtc::ArrayView<const uint8_t> data)28 absl::optional<OutOfResourceErrorCause> OutOfResourceErrorCause::Parse(
29     rtc::ArrayView<const uint8_t> data) {
30   if (!ParseTLV(data).has_value()) {
31     return absl::nullopt;
32   }
33   return OutOfResourceErrorCause();
34 }
35 
SerializeTo(std::vector<uint8_t> & out) const36 void OutOfResourceErrorCause::SerializeTo(std::vector<uint8_t>& out) const {
37   AllocateTLV(out);
38 }
39 
ToString() const40 std::string OutOfResourceErrorCause::ToString() const {
41   return "Out Of Resource";
42 }
43 
44 }  // namespace dcsctp
45