Index: net/quic/quic_data_reader.cc |
diff --git a/net/quic/quic_data_reader.cc b/net/quic/quic_data_reader.cc |
deleted file mode 100644 |
index b9a6acf32f5b28c442caf18ba17d93ebc912be8f..0000000000000000000000000000000000000000 |
--- a/net/quic/quic_data_reader.cc |
+++ /dev/null |
@@ -1,167 +0,0 @@ |
-// Copyright (c) 2012 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/quic/quic_data_reader.h" |
- |
-#include "net/base/int128.h" |
-#include "net/quic/quic_protocol.h" |
- |
-using base::StringPiece; |
- |
-namespace net { |
- |
-QuicDataReader::QuicDataReader(const char* data, const size_t len) |
- : data_(data), |
- len_(len), |
- pos_(0) { |
-} |
- |
-bool QuicDataReader::ReadUInt16(uint16* result) { |
- return ReadBytes(result, sizeof(*result)); |
-} |
- |
-bool QuicDataReader::ReadUInt32(uint32* result) { |
- return ReadBytes(result, sizeof(*result)); |
-} |
- |
-bool QuicDataReader::ReadUInt48(uint64* result) { |
- uint32 lo; |
- if (!ReadUInt32(&lo)) { |
- return false; |
- } |
- |
- uint16 hi; |
- if (!ReadUInt16(&hi)) { |
- return false; |
- } |
- |
- *result = hi; |
- *result <<= 32; |
- *result += lo; |
- |
- return true; |
-} |
- |
-bool QuicDataReader::ReadUInt64(uint64* result) { |
- return ReadBytes(result, sizeof(*result)); |
-} |
- |
-bool QuicDataReader::ReadUInt128(uint128* result) { |
- uint64 high_hash; |
- uint64 low_hash; |
- |
- if (!ReadUInt64(&low_hash)) { |
- return false; |
- } |
- if (!ReadUInt64(&high_hash)) { |
- return false; |
- } |
- |
- *result = uint128(high_hash, low_hash); |
- return true; |
-} |
- |
-bool QuicDataReader::ReadUFloat16(uint64* result) { |
- uint16 value; |
- if (!ReadUInt16(&value)) { |
- return false; |
- } |
- |
- *result = value; |
- if (*result < (1 << kUFloat16MantissaEffectiveBits)) { |
- // Fast path: either the value is denormalized (no hidden bit), or |
- // normalized (hidden bit set, exponent offset by one) with exponent zero. |
- // Zero exponent offset by one sets the bit exactly where the hidden bit is. |
- // So in both cases the value encodes itself. |
- return true; |
- } |
- |
- uint16 exponent = value >> kUFloat16MantissaBits; // No sign extend on uint! |
- // After the fast pass, the exponent is at least one (offset by one). |
- // Un-offset the exponent. |
- --exponent; |
- DCHECK_GE(exponent, 1); |
- DCHECK_LE(exponent, kUFloat16MaxExponent); |
- // Here we need to clear the exponent and set the hidden bit. We have already |
- // decremented the exponent, so when we subtract it, it leaves behind the |
- // hidden bit. |
- *result -= exponent << kUFloat16MantissaBits; |
- *result <<= exponent; |
- DCHECK_GE(value, 1 << kUFloat16MantissaEffectiveBits); |
- DCHECK_LE(value, kUFloat16MaxValue); |
- return true; |
-} |
- |
-bool QuicDataReader::ReadStringPiece16(StringPiece* result) { |
- // Read resultant length. |
- uint16 result_len; |
- if (!ReadUInt16(&result_len)) { |
- // OnFailure() already called. |
- return false; |
- } |
- |
- return ReadStringPiece(result, result_len); |
-} |
- |
-bool QuicDataReader::ReadStringPiece(StringPiece* result, size_t size) { |
- // Make sure that we have enough data to read. |
- if (!CanRead(size)) { |
- OnFailure(); |
- return false; |
- } |
- |
- // Set result. |
- result->set(data_ + pos_, size); |
- |
- // Iterate. |
- pos_ += size; |
- |
- return true; |
-} |
- |
-StringPiece QuicDataReader::ReadRemainingPayload() { |
- StringPiece payload = PeekRemainingPayload(); |
- pos_ = len_; |
- return payload; |
-} |
- |
-StringPiece QuicDataReader::PeekRemainingPayload() { |
- return StringPiece(data_ + pos_, len_ - pos_); |
-} |
- |
-bool QuicDataReader::ReadBytes(void* result, size_t size) { |
- // Make sure that we have enough data to read. |
- if (!CanRead(size)) { |
- OnFailure(); |
- return false; |
- } |
- |
- // Read into result. |
- memcpy(result, data_ + pos_, size); |
- |
- // Iterate. |
- pos_ += size; |
- |
- return true; |
-} |
- |
-bool QuicDataReader::IsDoneReading() const { |
- return len_ == pos_; |
-} |
- |
-size_t QuicDataReader::BytesRemaining() const { |
- return len_ - pos_; |
-} |
- |
-bool QuicDataReader::CanRead(size_t bytes) const { |
- return bytes <= (len_ - pos_); |
-} |
- |
-void QuicDataReader::OnFailure() { |
- // Set our iterator to the end of the buffer so that further reads fail |
- // immediately. |
- pos_ = len_; |
-} |
- |
-} // namespace net |