public void readBytesTo(byte[] buffer, int offset, int length) {
Requires.nonNull(buffer, "buffer");
Requires.positive(offset, "offset");
Requires.positive(length, "length");
ensureCanGrow(length);
Unsafe.INSTANCE.copyMemory(
null,
address + position,
buffer,
Unsafe.BYTEARRAY_BASEOFFSET + offset * Unsafe.BYTEARRAY_INDEXSCALE,
length);
position += length;
}
public String readString() {
int length = (int) readVLong();
Requires.range(length, 0, paging.getPageSize(), "length");
char[] buffer = new char[length];
readUtf8To(buffer, 0, length);
return new String(buffer);
}
public byte[] readBytes() {
int len = (int) readVLong();
Requires.range(len, 0, paging.getPageSize(), "len");
ensureCanGrow(len);
byte[] blob = new byte[len];
Unsafe.INSTANCE.copyMemory(null, address + position, blob, Unsafe.BYTEARRAY_BASEOFFSET, len);
position += len;
return blob;
}
public long readPageNum() {
PageNum pageNum = paging.getPageNum();
ensureCanGrow(pageNum.size());
long result = pageNum.readPageNum(address + position);
Requires.positive(result, "result");
position += pageNum.size();
return result;
}
public int readInnerRef() {
InnerRef innerRef = paging.getInnerRef();
ensureCanGrow(innerRef.size());
int result = innerRef.readInnerRef(address + position);
Requires.range(result, 0, paging.getPageSize(), "result");
position += innerRef.size();
return result;
}