LLBufferArray::segment_iterator_t LLBufferArray::constructSegmentAfter(
U8* address,
LLSegment& segment)
{
LLMemType m1(LLMemType::MTYPE_IO_BUFFER);
segment_iterator_t rv = mSegments.begin();
segment_iterator_t end = mSegments.end();
if(!address)
{
if(rv != end)
{
segment = (*rv);
}
}
else
{
// we have an address - find the segment it is in.
for( ; rv != end; ++rv)
{
if((address >= (*rv).data())
&& (address < ((*rv).data() + (*rv).size())))
{
if((++address) < ((*rv).data() + (*rv).size()))
{
// it's in this segment - construct an appropriate
// sub-segment.
segment = LLSegment(
(*rv).getChannel(),
address,
(*rv).size() - (address - (*rv).data()));
}
else
{
++rv;
if(rv != end)
{
segment = (*rv);
}
}
break;
}
}
}
if(rv == end)
{
segment = LLSegment();
}
return rv;
}
// virtual
bool LLHeapBuffer::createSegment(
S32 channel,
S32 size,
LLSegment& segment)
{
// get actual size of the segment.
S32 actual_size = llmin(size, (mSize - S32(mNextFree - mBuffer)));
// bail if we cannot build a valid segment
if(actual_size <= 0)
{
return false;
}
// Yay, we're done.
segment = LLSegment(channel, mNextFree, actual_size);
mNextFree += actual_size;
return true;
}
