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29 #include "SharedBuffer.h"
31 #include "PurgeableBuffer.h"
35 SharedBuffer::SharedBuffer(CFDataRef cfData)
41 // Mac is a CF platform but has an even more efficient version of this method,
42 // so only use this version for non-Mac
43 #if !PLATFORM(MAC) && !(PLATFORM(QT) && USE(QTKIT))
44 CFDataRef SharedBuffer::createCFData()
47 CFRetain(m_cfData.get());
48 return m_cfData.get();
51 // Internal data in SharedBuffer can be segmented. We need to get the contiguous buffer.
52 const Vector<char>& contiguousBuffer = buffer();
53 return CFDataCreate(0, reinterpret_cast<const UInt8*>(contiguousBuffer.data()), contiguousBuffer.size());
57 PassRefPtr<SharedBuffer> SharedBuffer::wrapCFData(CFDataRef data)
59 return adoptRef(new SharedBuffer(data));
62 bool SharedBuffer::hasPlatformData() const
67 const char* SharedBuffer::platformData() const
69 return (const char*)CFDataGetBytePtr(m_cfData.get());
72 unsigned SharedBuffer::platformDataSize() const
74 return CFDataGetLength(m_cfData.get());
77 void SharedBuffer::maybeTransferPlatformData()
84 append((const char*)CFDataGetBytePtr(m_cfData.get()), CFDataGetLength(m_cfData.get()));
89 void SharedBuffer::clearPlatformData()
94 #if HAVE(NETWORK_CFDATA_ARRAY_CALLBACK)
95 void SharedBuffer::append(CFDataRef data)
98 m_dataArray.append(data);
99 m_size += CFDataGetLength(data);
102 void SharedBuffer::copyDataArrayAndClear(char *destination, unsigned bytesToCopy) const
104 if (m_dataArray.isEmpty())
107 CFIndex bytesLeft = bytesToCopy;
108 Vector<RetainPtr<CFDataRef> >::const_iterator end = m_dataArray.end();
109 for (Vector<RetainPtr<CFDataRef> >::const_iterator it = m_dataArray.begin(); it != end; ++it) {
110 CFIndex dataLen = CFDataGetLength(it->get());
111 ASSERT(bytesLeft >= dataLen);
112 memcpy(destination, CFDataGetBytePtr(it->get()), dataLen);
113 destination += dataLen;
114 bytesLeft -= dataLen;