Project import generated by Copybara.
PiperOrigin-RevId: 224614037
Change-Id: I14e53449d4aeccb328f86828c76b5f09dea0d4b8
diff --git a/http2/hpack/decoder/hpack_block_decoder.h b/http2/hpack/decoder/hpack_block_decoder.h
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+++ b/http2/hpack/decoder/hpack_block_decoder.h
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+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef QUICHE_HTTP2_HPACK_DECODER_HPACK_BLOCK_DECODER_H_
+#define QUICHE_HTTP2_HPACK_DECODER_HPACK_BLOCK_DECODER_H_
+
+// HpackBlockDecoder decodes an entire HPACK block (or the available portion
+// thereof in the DecodeBuffer) into entries, but doesn't include HPACK static
+// or dynamic table support, so table indices remain indices at this level.
+// Reports the entries to an HpackEntryDecoderListener.
+
+#include "base/logging.h"
+#include "net/third_party/quiche/src/http2/decoder/decode_buffer.h"
+#include "net/third_party/quiche/src/http2/decoder/decode_status.h"
+#include "net/third_party/quiche/src/http2/hpack/decoder/hpack_entry_decoder.h"
+#include "net/third_party/quiche/src/http2/hpack/decoder/hpack_entry_decoder_listener.h"
+#include "net/third_party/quiche/src/http2/platform/api/http2_export.h"
+#include "net/third_party/quiche/src/http2/platform/api/http2_string.h"
+
+namespace http2 {
+
+class HTTP2_EXPORT_PRIVATE HpackBlockDecoder {
+ public:
+ explicit HpackBlockDecoder(HpackEntryDecoderListener* listener)
+ : listener_(listener) {
+ DCHECK_NE(listener_, nullptr);
+ }
+ ~HpackBlockDecoder() {}
+
+ HpackBlockDecoder(const HpackBlockDecoder&) = delete;
+ HpackBlockDecoder& operator=(const HpackBlockDecoder&) = delete;
+
+ // Prepares the decoder to start decoding a new HPACK block. Expected
+ // to be called from an implementation of Http2FrameDecoderListener's
+ // OnHeadersStart or OnPushPromiseStart methods.
+ void Reset() {
+ DVLOG(2) << "HpackBlockDecoder::Reset";
+ before_entry_ = true;
+ }
+
+ // Decode the fragment of the HPACK block contained in the decode buffer.
+ // Expected to be called from an implementation of Http2FrameDecoderListener's
+ // OnHpackFragment method.
+ DecodeStatus Decode(DecodeBuffer* db);
+
+ // Is the decoding process between entries (i.e. would the next byte be the
+ // first byte of a new HPACK entry)?
+ bool before_entry() const { return before_entry_; }
+
+ Http2String DebugString() const;
+
+ private:
+ HpackEntryDecoder entry_decoder_;
+ HpackEntryDecoderListener* const listener_;
+ bool before_entry_ = true;
+};
+
+HTTP2_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& out,
+ const HpackBlockDecoder& v);
+
+} // namespace http2
+
+#endif // QUICHE_HTTP2_HPACK_DECODER_HPACK_BLOCK_DECODER_H_
