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Unified Diff: net/http2/hpack/decoder/hpack_block_decoder.cc

Issue 2293613002: Add new HTTP/2 and HPACK decoder in net/http2/. (Closed)
Patch Set: Replace LOG(INFO) by VLOG(2) in DecodeBufferTest.SlowDecodeTestStruct so that trybots do not fail. Created 4 years ago
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Index: net/http2/hpack/decoder/hpack_block_decoder.cc
diff --git a/net/http2/hpack/decoder/hpack_block_decoder.cc b/net/http2/hpack/decoder/hpack_block_decoder.cc
new file mode 100644
index 0000000000000000000000000000000000000000..29b68691b1bbf940fa35021be8ef54bae8b80cbf
--- /dev/null
+++ b/net/http2/hpack/decoder/hpack_block_decoder.cc
@@ -0,0 +1,65 @@
+// 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.
+
+#include "net/http2/hpack/decoder/hpack_block_decoder.h"
+
+#include <stdint.h>
+
+#include <sstream>
+#include <string>
+
+#include "base/logging.h"
+
+namespace net {
+
+DecodeStatus HpackBlockDecoder::Decode(DecodeBuffer* db) {
+ if (!before_entry_) {
+ DVLOG(2) << "HpackBlockDecoder::Decode resume entry, db->Remaining="
+ << db->Remaining();
+ DecodeStatus status = entry_decoder_.Resume(db, listener_);
+ switch (status) {
+ case DecodeStatus::kDecodeDone:
+ before_entry_ = true;
+ break;
+ case DecodeStatus::kDecodeInProgress:
+ DCHECK_EQ(0u, db->Remaining());
+ return DecodeStatus::kDecodeInProgress;
+ case DecodeStatus::kDecodeError:
+ return DecodeStatus::kDecodeError;
+ }
+ }
+ DCHECK(before_entry_);
+ while (db->HasData()) {
+ DVLOG(2) << "HpackBlockDecoder::Decode start entry, db->Remaining="
+ << db->Remaining();
+ DecodeStatus status = entry_decoder_.Start(db, listener_);
+ switch (status) {
+ case DecodeStatus::kDecodeDone:
+ continue;
+ case DecodeStatus::kDecodeInProgress:
+ DCHECK_EQ(0u, db->Remaining());
+ before_entry_ = false;
+ return DecodeStatus::kDecodeInProgress;
+ case DecodeStatus::kDecodeError:
+ return DecodeStatus::kDecodeError;
+ }
+ DCHECK(false);
+ }
+ DCHECK(before_entry_);
+ return DecodeStatus::kDecodeDone;
+}
+
+std::string HpackBlockDecoder::DebugString() const {
+ std::stringstream ss;
+ ss << "HpackBlockDecoder(" << entry_decoder_.DebugString() << ", listener@"
+ << std::hex << reinterpret_cast<intptr_t>(listener_)
+ << (before_entry_ ? ", between entries)" : ", in an entry)");
+ return ss.str();
+}
+
+std::ostream& operator<<(std::ostream& out, const HpackBlockDecoder& v) {
+ return out << v.DebugString();
+}
+
+} // namespace net
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