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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/cf/SharedBufferCF.cpp | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/cf/SharedBufferCF.cpp')
-rw-r--r-- | Source/WebCore/platform/cf/SharedBufferCF.cpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/Source/WebCore/platform/cf/SharedBufferCF.cpp b/Source/WebCore/platform/cf/SharedBufferCF.cpp new file mode 100644 index 0000000..18a65c2 --- /dev/null +++ b/Source/WebCore/platform/cf/SharedBufferCF.cpp @@ -0,0 +1,94 @@ +/* + * Copyright (C) 2008, 2010 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. + * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "SharedBuffer.h" + +#include "PurgeableBuffer.h" + +namespace WebCore { + +SharedBuffer::SharedBuffer(CFDataRef cfData) + : m_size(0) + , m_cfData(cfData) +{ +} + +// Mac is a CF platform but has an even more efficient version of this method, +// so only use this version for non-Mac +#if !PLATFORM(MAC) +CFDataRef SharedBuffer::createCFData() +{ + if (m_cfData) { + CFRetain(m_cfData.get()); + return m_cfData.get(); + } + + // Internal data in SharedBuffer can be segmented. We need to get the contiguous buffer. + const Vector<char>& contiguousBuffer = buffer(); + return CFDataCreate(0, reinterpret_cast<const UInt8*>(contiguousBuffer.data()), contiguousBuffer.size()); +} +#endif + +PassRefPtr<SharedBuffer> SharedBuffer::wrapCFData(CFDataRef data) +{ + return adoptRef(new SharedBuffer(data)); +} + +bool SharedBuffer::hasPlatformData() const +{ + return m_cfData; +} + +const char* SharedBuffer::platformData() const +{ + return (const char*)CFDataGetBytePtr(m_cfData.get()); +} + +unsigned SharedBuffer::platformDataSize() const +{ + return CFDataGetLength(m_cfData.get()); +} + +void SharedBuffer::maybeTransferPlatformData() +{ + if (!m_cfData) + return; + + ASSERT(!m_size); + + append((const char*)CFDataGetBytePtr(m_cfData.get()), CFDataGetLength(m_cfData.get())); + + m_cfData = 0; +} + +void SharedBuffer::clearPlatformData() +{ + m_cfData = 0; +} + +} |