Landing Recent QUIC changes until Sun Apr 9 16:12:55

net/quic/core/quic_data_reader.h

 // 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.
 
 #ifndef NET_QUIC_CORE_QUIC_DATA_READER_H_
 #define NET_QUIC_CORE_QUIC_DATA_READER_H_
 
 #include <cstddef>
 #include <cstdint>
 
@@ skipping 100 matching lines @@
   // Returns true on success, false otherwise.
   bool ReadBytes(void* result, size_t size);
 
   // Returns true if the entirety of the underlying buffer has been read via
   // Read*() calls.
   bool IsDoneReading() const;
 
   // Returns the number of bytes remaining to be read.
   size_t BytesRemaining() const;
 
+  // Returns the next byte that to be read. Must not be called when there are no
+  // bytes to be read.
+  //
+  // DOES NOT forward the internal iterator.
+  uint8_t PeekByte() const;
+
  private:
   // Returns true if the underlying buffer has enough room to read the given
   // amount of bytes.
   bool CanRead(size_t bytes) const;
 
   // To be called when a read fails for any reason.
   void OnFailure();
 
   // The data buffer that we're reading from.
   const char* data_;
 
   // The length of the data buffer that we're reading from.
   const size_t len_;
 
   // The location of the next read from our data buffer.
   size_t pos_;
 
   // Perspective of this data reader. Please note, although client and server
   // may have different in-memory representation of the same field, the on wire
   // representation must be consistent.
   Perspective perspective_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicDataReader);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CORE_QUIC_DATA_READER_H_