43 lines
1.3 KiB
C++
43 lines
1.3 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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#ifndef mozilla_net_capsule_decoder_h
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#define mozilla_net_capsule_decoder_h
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#include "mozilla/RefPtr.h"
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#include "mozilla/Maybe.h"
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#include "mozilla/Span.h"
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namespace mozilla::net {
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class NeqoDecoder;
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// CapsuleDecoder provides methods to decode capsule data from a given buffer.
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// It does not own the underlying data, so the caller must ensure that the
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// buffer remains valid for the lifetime of the CapsuleDecoder instance.
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class MOZ_STACK_CLASS CapsuleDecoder final {
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public:
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explicit CapsuleDecoder(const uint8_t* aData, size_t aLength);
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~CapsuleDecoder();
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// Return Nothing() when there is not enough data to decode.
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template <typename T>
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Maybe<T> DecodeUint();
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Maybe<uint64_t> DecodeVarint();
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Maybe<mozilla::Span<const uint8_t>> Decode(size_t n);
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mozilla::Span<const uint8_t> GetRemaining();
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size_t BytesRemaining();
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size_t CurrentPos();
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private:
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RefPtr<NeqoDecoder> mDecoder;
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};
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} // namespace mozilla::net
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#endif
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