60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set sw=2 ts=8 et tw=80 : */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "CapsuleDecoder.h"
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#include "ErrorList.h"
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#include "mozilla/net/NeqoHttp3Conn.h"
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namespace mozilla::net {
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CapsuleDecoder::CapsuleDecoder(const uint8_t* aData, size_t aLength) {
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NeqoDecoder::Init(aData, aLength, getter_AddRefs(mDecoder));
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}
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CapsuleDecoder::~CapsuleDecoder() = default;
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template <>
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Maybe<uint32_t> CapsuleDecoder::DecodeUint<uint32_t>() {
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uint32_t res = 0;
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if (mDecoder->DecodeUint32(&res)) {
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return Some(res);
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}
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return Nothing();
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}
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size_t CapsuleDecoder::BytesRemaining() { return mDecoder->Remaining(); }
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size_t CapsuleDecoder::CurrentPos() { return mDecoder->Offset(); }
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Maybe<uint64_t> CapsuleDecoder::DecodeVarint() {
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uint64_t v = 0;
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if (mDecoder->DecodeVarint(&v)) {
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return Some(v);
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}
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return Nothing();
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}
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// Decodes arbitrary data: returns a span over the next n bytes, if available.
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Maybe<mozilla::Span<const uint8_t>> CapsuleDecoder::Decode(size_t n) {
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const uint8_t* buffer = nullptr;
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uint32_t length = 0;
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if (mDecoder->Decode(n, &buffer, &length)) {
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return Some(mozilla::Span<const uint8_t>(buffer, length));
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}
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return Nothing();
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}
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mozilla::Span<const uint8_t> CapsuleDecoder::GetRemaining() {
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const uint8_t* buffer = nullptr;
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uint32_t length = 0;
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mDecoder->DecodeRemainder(&buffer, &length);
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return mozilla::Span<const uint8_t>(buffer, length);
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}
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} // namespace mozilla::net
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