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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef NET_SPDY_SPDY_BITMASKS_H_
      6 #define NET_SPDY_SPDY_BITMASKS_H_
      7 
      8 namespace net {
      9 
     10 // StreamId mask from the SpdyHeader
     11 const unsigned int kStreamIdMask = 0x7fffffff;
     12 
     13 // Control flag mask from the SpdyHeader
     14 const unsigned int kControlFlagMask = 0x8000;
     15 
     16 // Priority mask from the SYN_FRAME
     17 const unsigned int kSpdy3PriorityMask = 0xe0;
     18 const unsigned int kSpdy2PriorityMask = 0xc0;
     19 
     20 // Mask the lower 24 bits.
     21 const unsigned int kLengthMask = 0xffffff;
     22 
     23 // Legal flags on data packets.
     24 const int kDataFlagsMask = 0x01;
     25 
     26 // Legal flags on control packets.
     27 const int kControlFlagsMask = 0x03;
     28 
     29 }  // namespace net
     30 
     31 #endif  // NET_SPDY_SPDY_BITMASKS_H_
     32