bool ArrayBuffer::transfer(ArrayBufferContents& result)
{
Ref<ArrayBuffer> protect(*this);
if (!m_contents.m_data) {
result.m_data = 0;
return false;
}
bool isNeuterable = !m_pinCount;
if (isNeuterable)
m_contents.transfer(result);
else {
m_contents.copyTo(result);
if (!result.m_data)
return false;
}
for (size_t i = numberOfIncomingReferences(); i--;) {
JSArrayBufferView* view = jsDynamicCast<JSArrayBufferView*>(incomingReferenceAt(i));
if (view)
view->neuter();
}
return true;
}
void ArrayBuffer::notifyIncommingReferencesOfTransfer(VM& vm)
{
for (size_t i = numberOfIncomingReferences(); i--;) {
JSCell* cell = incomingReferenceAt(i);
if (JSArrayBufferView* view = jsDynamicCast<JSArrayBufferView*>(vm, cell))
view->neuter();
else if (ArrayBufferNeuteringWatchpoint* watchpoint = jsDynamicCast<ArrayBufferNeuteringWatchpoint*>(vm, cell))
watchpoint->fireAll();
}
}