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| 1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #ifndef NET_SPDY_FRAME_BUILDER_H_ | 5 #ifndef NET_SPDY_SPDY_FRAME_BUILDER_H_ | 
| 6 #define NET_SPDY_FRAME_BUILDER_H_ | 6 #define NET_SPDY_SPDY_FRAME_BUILDER_H_ | 
| 7 #pragma once | 7 #pragma once | 
| 8 | 8 | 
| 9 #ifdef WIN32 | 9 #ifdef WIN32 | 
| 10 #include <winsock2.h>  // for htonl() functions | 10 #include <winsock2.h>  // for htonl() functions | 
| 11 #else | 11 #else | 
| 12 #include <arpa/inet.h> | 12 #include <arpa/inet.h> | 
| 13 #endif | 13 #endif | 
| 14 | 14 | 
| 15 #include <string> | 15 #include <string> | 
| 16 | 16 | 
| 17 #include "base/logging.h" | 17 #include "base/basictypes.h" | 
| 18 #include "net/spdy/spdy_protocol.h" | 18 #include "net/spdy/spdy_protocol.h" | 
| 19 | 19 | 
| 20 namespace spdy { | 20 namespace spdy { | 
| 21 | 21 | 
| 22 // This class provides facilities for basic binary value packing and unpacking | 22 // This class provides facilities for basic binary value packing and unpacking | 
| 23 // into Spdy frames. | 23 // into Spdy frames. | 
| 24 // | 24 // | 
| 25 // The SpdyFrameBuilder supports appending primitive values (int, string, etc) | 25 // The SpdyFrameBuilder supports appending primitive values (int, string, etc) | 
| 26 // to a frame instance.  The SpdyFrameBuilder grows its internal memory buffer | 26 // to a frame instance.  The SpdyFrameBuilder grows its internal memory buffer | 
| 27 // dynamically to hold the sequence of primitive values.   The internal memory | 27 // dynamically to hold the sequence of primitive values.   The internal memory | 
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| 153 | 153 | 
| 154  private: | 154  private: | 
| 155   char* buffer_; | 155   char* buffer_; | 
| 156   size_t capacity_;  // Allocation size of payload (or -1 if buffer is const). | 156   size_t capacity_;  // Allocation size of payload (or -1 if buffer is const). | 
| 157   size_t length_;    // current length of the buffer | 157   size_t length_;    // current length of the buffer | 
| 158   size_t variable_buffer_offset_;  // IF non-zero, then offset to a buffer. | 158   size_t variable_buffer_offset_;  // IF non-zero, then offset to a buffer. | 
| 159 }; | 159 }; | 
| 160 | 160 | 
| 161 }  // namespace spdy | 161 }  // namespace spdy | 
| 162 | 162 | 
| 163 #endif  // NET_SPDY_FRAME_BUILDER_H_ | 163 #endif  // NET_SPDY_SPDY_FRAME_BUILDER_H_ | 
| 164 |  | 
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