RawURLBuffer.h   [plain text]

// Copyright 2010, Google Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#ifndef RawURLBuffer_h
#define RawURLBuffer_h

#include "URLBuffer.h"
#include <stdlib.h>

namespace WTF {

// Simple implementation of the URLBuffer using new[]. This class
// also supports a static buffer so if it is allocated on the stack, most
// URLs can be canonicalized with no heap allocations.
template<typename CHAR, int inlineCapacity = 1024>
class RawURLBuffer : public URLBuffer<CHAR> {
public:
    RawURLBuffer() : URLBuffer<CHAR>()
    {
        this->m_buffer = m_inlineBuffer;
        this->m_capacity = inlineCapacity;
    }

    virtual ~RawURLBuffer()
    {
        if (this->m_buffer != m_inlineBuffer)
            delete[] this->m_buffer;
    }

    virtual void resize(int size)
    {
        CHAR* newBuffer = new CHAR[size];
        memcpy(newBuffer, this->m_buffer, sizeof(CHAR) * (this->m_length < size ? this->m_length : size));
        if (this->m_buffer != m_inlineBuffer)
            delete[] this->m_buffer;
        this->m_buffer = newBuffer;
        this->m_capacity = size;
    }

protected:
    CHAR m_inlineBuffer[inlineCapacity];
};

} // namespace WTF

#endif // RawURLBuffer_h