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/*
* Copyright (C) 2012 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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.
*/
#include "config.h"
#include "ResourceBuffer.h"
#include "PurgeableBuffer.h"
namespace WebCore {
ResourceBuffer::ResourceBuffer()
: m_sharedBuffer(SharedBuffer::create())
{
}
ResourceBuffer::ResourceBuffer(const char* data, unsigned size)
: m_sharedBuffer(SharedBuffer::create(data, size))
{
}
ResourceBuffer::ResourceBuffer(PassRefPtr<SharedBuffer> sharedBuffer)
: m_sharedBuffer(sharedBuffer)
{
ASSERT(m_sharedBuffer);
}
ResourceBuffer::~ResourceBuffer()
{
}
const char* ResourceBuffer::data() const
{
return m_sharedBuffer->data();
}
unsigned ResourceBuffer::size() const
{
return m_sharedBuffer->size();
}
bool ResourceBuffer::isEmpty() const
{
return m_sharedBuffer->isEmpty();
}
void ResourceBuffer::append(const char* data, unsigned size)
{
m_sharedBuffer->append(data, size);
}
void ResourceBuffer::append(SharedBuffer* buffer)
{
m_sharedBuffer->append(buffer);
}
#if USE(NETWORK_CFDATA_ARRAY_CALLBACK)
void ResourceBuffer::append(CFDataRef data)
{
ASSERT(m_sharedBuffer);
m_sharedBuffer->append(data);
}
#endif
void ResourceBuffer::clear()
{
m_sharedBuffer->clear();
}
unsigned ResourceBuffer::getSomeData(const char*& data, unsigned position) const
{
return m_sharedBuffer->getSomeData(data, position);
}
SharedBuffer* ResourceBuffer::sharedBuffer() const
{
// Currently all ResourceBuffers are backed by SharedBuffers.
// In the future we might have to create the SharedBuffer on demand here.
// We should also phase out as much use of this accessor as possible and have clients
// either use the ResourceBuffer directly or use getSomeData() when sensical.
return m_sharedBuffer.get();
}
PassRefPtr<ResourceBuffer> ResourceBuffer::copy() const
{
return ResourceBuffer::adoptSharedBuffer(m_sharedBuffer->copy());
}
bool ResourceBuffer::hasPurgeableBuffer() const
{
return m_sharedBuffer->hasPurgeableBuffer();
}
#if PLATFORM(IOS)
void ResourceBuffer::setShouldUsePurgeableMemory(bool shouldUsePurgeableMemory)
{
ASSERT(m_sharedBuffer);
sharedBuffer()->shouldUsePurgeableMemory(shouldUsePurgeableMemory);
}
#endif
void ResourceBuffer::createPurgeableBuffer() const
{
ASSERT(m_sharedBuffer);
sharedBuffer()->createPurgeableBuffer();
}
PassOwnPtr<PurgeableBuffer> ResourceBuffer::releasePurgeableBuffer()
{
return m_sharedBuffer->releasePurgeableBuffer();
}
#if USE(CF)
RetainPtr<CFDataRef> ResourceBuffer::createCFData()
{
return m_sharedBuffer->createCFData();
}
#endif
#if ENABLE(DISK_IMAGE_CACHE)
bool ResourceBuffer::isUsingDiskImageCache() const
{
ASSERT(m_sharedBuffer);
return m_sharedBuffer && m_sharedBuffer->isAllowedToBeMemoryMapped();
}
#endif
} // namespace WebCore
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