chromium/net/filter/zstd_source_stream.cc

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/filter/zstd_source_stream.h"

#include <algorithm>
#include <unordered_map>
#include <utility>

#define ZSTD_STATIC_LINKING_ONLY

#include "base/bits.h"
#include "base/check_op.h"
#include "base/metrics/histogram_macros.h"
#include "base/numerics/safe_conversions.h"
#include "net/base/io_buffer.h"
#include "third_party/zstd/src/lib/zstd.h"
#include "third_party/zstd/src/lib/zstd_errors.h"

namespace net {

namespace {

const char kZstd[] = …;

struct FreeContextDeleter { … };

// ZstdSourceStream applies Zstd content decoding to a data stream.
// Zstd format speciication: https://datatracker.ietf.org/doc/html/rfc8878
class ZstdSourceStream : public FilterSourceStream { … };

}  // namespace

std::unique_ptr<FilterSourceStream> CreateZstdSourceStream(
    std::unique_ptr<SourceStream> previous) { … }

std::unique_ptr<FilterSourceStream> CreateZstdSourceStreamWithDictionary(
    std::unique_ptr<SourceStream> previous,
    scoped_refptr<IOBuffer> dictionary,
    size_t dictionary_size) { … }

}  // namespace net