Method ReadULEB128

view/sharedcache/core/VirtualMemory.cpp:183–208

}

uint64_t VirtualMemoryReader::ReadULEB128(size_t cursorLimit)
{
	uint64_t result = 0;
	int bit = 0;
	uint64_t offset;
	auto mapping = m_memory->GetRegionAtAddress(m_cursor, offset);
	auto fileLimit = offset + (cursorLimit - m_cursor);
	auto fa = mapping->fileAccessor.lock();
	auto* fileBuff = (uint8_t*)fa->Data();
	do
	{
		if (offset >= fileLimit)
			return -1;
		uint64_t slice = ((uint64_t*)&((fileBuff)[offset]))[0] & 0x7f;
		if (bit > 63)
			return -1;
		else
		{
			result |= (slice << bit);
			bit += 7;
		}
	} while (((uint64_t*)&(fileBuff[offset++]))[0] & 0x80);
	// TODO: There has got to be a better way to prevent this...
	fa->Data();  // prevent deallocation of the fileAccessor as we're operating on the raw data buffer
	return result;
}

int64_t VirtualMemoryReader::ReadSLEB128(size_t cursorLimit)
{