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1  // Copyright 2010, Google Inc. All rights reserved.
2  //
3  // Redistribution and use in source and binary forms, with or without
4  // modification, are permitted provided that the following conditions are
5  // met:
6  //
7  //     * Redistributions of source code must retain the above copyright
8  // notice, this list of conditions and the following disclaimer.
9  //     * Redistributions in binary form must reproduce the above
10  // copyright notice, this list of conditions and the following disclaimer
11  // in the documentation and/or other materials provided with the
12  // distribution.
13  //     * Neither the name of Google Inc. nor the names of its
14  // contributors may be used to endorse or promote products derived from
15  // this software without specific prior written permission.
16  //
17  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18  // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  
29  #ifndef RawURLBuffer_h
30  #define RawURLBuffer_h
31  
32  #include "URLBuffer.h"
33  #include <stdlib.h>
34  
35  namespace WTF {
36  
37  // Simple implementation of the URLBuffer using new[]. This class
38  // also supports a static buffer so if it is allocated on the stack, most
39  // URLs can be canonicalized with no heap allocations.
40  template<typename CHAR, int inlineCapacity = 1024>
41  class RawURLBuffer : public URLBuffer<CHAR> {
42  public:
RawURLBuffer()43      RawURLBuffer() : URLBuffer<CHAR>()
44      {
45          this->m_buffer = m_inlineBuffer;
46          this->m_capacity = inlineCapacity;
47      }
48  
~RawURLBuffer()49      virtual ~RawURLBuffer()
50      {
51          if (this->m_buffer != m_inlineBuffer)
52              delete[] this->m_buffer;
53      }
54  
resize(int size)55      virtual void resize(int size)
56      {
57          CHAR* newBuffer = new CHAR[size];
58          memcpy(newBuffer, this->m_buffer, sizeof(CHAR) * (this->m_length < size ? this->m_length : size));
59          if (this->m_buffer != m_inlineBuffer)
60              delete[] this->m_buffer;
61          this->m_buffer = newBuffer;
62          this->m_capacity = size;
63      }
64  
65  protected:
66      CHAR m_inlineBuffer[inlineCapacity];
67  };
68  
69  } // namespace WTF
70  
71  #endif // RawURLBuffer_h
72