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/*
* Copyright 2009, The Android Open Source Project
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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 WebCore_SharedBufferStream_DEFINED
#define WebCore_SharedBufferStream_DEFINED
#include "SkStream.h"
#include "SharedBuffer.h"
namespace WebCore {
/** Subclass of SkStream that wrapps a webcore SharedBuffer object. To
allow this object to be deleted from any thread, the impl will ensure
that we unref the SharedBuffer object from the correct webcore thread.
*/
class SharedBufferStream : public SkMemoryStream {
public:
SharedBufferStream(SharedBuffer* buffer);
virtual ~SharedBufferStream();
private:
// don't allow this to change our data. should not get called, but we
// override here just to be sure
virtual void setMemory(const void* data, size_t length, bool copyData) {
sk_throw();
}
// we share ownership of this with webkit
SharedBuffer* fBuffer;
};
}
#endif
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