void SharedBuffer::append(const char* data, unsigned length)
{
ASSERT(!m_purgeableBuffer);
if (!length)
return;
#if ENABLE(MEMORY_OUT_HANDLING)
if (WTF::MemoryOutManager::AbortReached())
return;
#endif
maybeTransferPlatformData();
unsigned positionInSegment = offsetInSegment(m_size - m_buffer.size());
m_size += length;
if (m_size <= segmentSize) {
// No need to use segments for small resource data
if (m_buffer.isEmpty())
m_buffer.reserveInitialCapacity(length);
m_buffer.append(data, length);
return;
}
char* segment;
if (!positionInSegment) {
segment = allocateSegment();
#if ENABLE(MEMORY_OUT_HANDLING)
if (!segment)
return;
#endif
m_segments.append(segment);
} else
segment = m_segments.last() + positionInSegment;
unsigned segmentFreeSpace = segmentSize - positionInSegment;
unsigned bytesToCopy = min(length, segmentFreeSpace);
for (;;) {
memcpy(segment, data, bytesToCopy);
if (static_cast<unsigned>(length) == bytesToCopy)
break;
length -= bytesToCopy;
data += bytesToCopy;
segment = allocateSegment();
#if ENABLE(MEMORY_OUT_HANDLING)
if (!segment)
return;
#endif
m_segments.append(segment);
bytesToCopy = min(length, segmentSize);
}
}
void SharedBuffer::append(const char* data, unsigned length)
{
ASSERT(!m_purgeableBuffer);
#if ENABLE(DISK_IMAGE_CACHE)
ASSERT(!isMemoryMapped());
#endif
if (!length)
return;
maybeTransferPlatformData();
#if !USE(NETWORK_CFDATA_ARRAY_CALLBACK)
unsigned positionInSegment = offsetInSegment(m_size - m_buffer->data.size());
m_size += length;
if (m_size <= segmentSize) {
// No need to use segments for small resource data
if (m_buffer->data.isEmpty())
m_buffer->data.reserveInitialCapacity(length);
appendToDataBuffer(data, length);
return;
}
char* segment;
if (!positionInSegment) {
segment = allocateSegment();
m_segments.append(segment);
} else
segment = m_segments.last() + positionInSegment;
unsigned segmentFreeSpace = segmentSize - positionInSegment;
unsigned bytesToCopy = std::min(length, segmentFreeSpace);
for (;;) {
memcpy(segment, data, bytesToCopy);
if (static_cast<unsigned>(length) == bytesToCopy)
break;
length -= bytesToCopy;
data += bytesToCopy;
segment = allocateSegment();
m_segments.append(segment);
bytesToCopy = std::min(length, segmentSize);
}
#else
m_size += length;
if (m_buffer->data.isEmpty())
m_buffer->data.reserveInitialCapacity(length);
appendToDataBuffer(data, length);
#endif
}
void SharedBuffer::append(const char* data, unsigned length)
{
ASSERT(!m_purgeableBuffer);
if (!length)
return;
maybeTransferPlatformData();
unsigned positionInSegment = offsetInSegment(m_size - m_buffer.size());
m_size += length;
if (m_size <= segmentSize) {
// No need to use segments for small resource data
m_buffer.append(data, length);
return;
}
char* segment;
if (!positionInSegment) {
segment = allocateSegment();
m_segments.append(segment);
} else
segment = m_segments.last() + positionInSegment;
unsigned segmentFreeSpace = segmentSize - positionInSegment;
unsigned bytesToCopy = min(length, segmentFreeSpace);
for (;;) {
memcpy(segment, data, bytesToCopy);
if (static_cast<unsigned>(length) == bytesToCopy)
break;
length -= bytesToCopy;
data += bytesToCopy;
segment = allocateSegment();
m_segments.append(segment);
bytesToCopy = min(length, segmentSize);
}
}