ByteArray &ByteArray::insertConstant(size_t index, BYTE b, size_t count) {
if(count == 0) {
return *this;
}
if(index > m_size) {
indexError(__TFUNCTION__, index);
}
const size_t newSize = m_size + count;
if(newSize > m_capacity) {
const size_t newCapacity = getCapacityCeil(2 * newSize);
BYTE *newData = allocateBytes(newCapacity);
if(index > 0) {
memcpy(newData, m_data, index);
}
if(index < m_size) {
memcpy(newData+index+count, m_data+index, m_size-index);
}
if(m_data != NULL) {
deallocateBytes(m_data);
}
m_data = newData;
m_capacity = newCapacity;
} else if(index < m_size) {
memmove(m_data+index+count, m_data+index, m_size-index);
}
memset(m_data+index, b, count);
m_size = newSize;
return *this;
}
oop Space::clone( oop original ) {
oop mapOop = MemoryObjectLayout().mapOf(original);
int oldBytesBottom = bytesBottom;
int oldOopsTop = oopsTop;
allocateOops (oriMap -> oopSize);
allocateBytes(oriMap -> byteSize);
copyOopPart (oriMap -> oopPart() , oldOopsTop , oopsTop );
copyBytesPart(oriMap -> bytesPart(), oldBytesBottom, bytesBottom);
Map* newMap = mapForOop(oldOopsTop);
newMap -> adjustForNewOop (oldOopsTop);
newMap -> adjustForNewBytesPart (oldBytesBottom);
return oldOopsTop;
}
void ByteArray::setCapacity(size_t capacity) {
if(capacity < m_size) {
capacity = m_size;
}
capacity = getCapacityCeil(capacity);
if(capacity == 0) {
cleanup();
} else if(capacity != m_capacity) {
BYTE *newData = allocateBytes(capacity);
if(m_size > 0) {
memcpy(newData, m_data, m_size);
deallocateBytes(m_data);
}
m_data = newData;
m_capacity = capacity;
}
}
ByteArray &ByteArray::append(const BYTE *data, size_t size) {
if(size) {
const size_t newSize = m_size + size;
if(newSize > m_capacity) { // Careful here!!! data and m_data might overlap!!
const size_t newCapacity = getCapacityCeil(2 * newSize); // > 0
BYTE *newData = allocateBytes(newCapacity);
if(m_size > 0) {
memcpy(newData, m_data, m_size);
}
memcpy(newData + m_size, data, size);
if(m_data != NULL) { // Now we can safely delete m_data.
deallocateBytes(m_data);
}
m_data = newData;
m_capacity = newCapacity;
} else {
memcpy(m_data+m_size, data, size);
}
m_size = newSize;
}
return *this;
}
StringPtr Arena::copyString(StringPtr content) {
char* data = reinterpret_cast<char*>(allocateBytes(content.size() + 1, 1, false));
memcpy(data, content.cStr(), content.size() + 1);
return StringPtr(data, content.size());
}