public int luaCB_read(Lua l, LuaPlugin plugin) {
l.pushNil();
l.pushNil();
try {
long offset = (long) l.checkNumber(2);
int length = (int) l.checkNumber(3);
if (length <= 0) {
l.pushNil();
l.pushString("Length is not positive");
return 2;
}
byte[] tmp = new byte[length];
object.seek(offset);
length = object.read(tmp);
if (length < 0) {
l.pushNil();
l.pushNil();
return 2;
}
StringBuffer buf = new StringBuffer(length);
for (byte x : tmp) buf.appendCodePoint((int) x & 0xFF);
l.push(buf.toString());
} catch (IOException e) {
l.pushNil();
l.pushString("IOException: " + e.getMessage());
return 2;
}
return 1;
}
public int luaCB_set_length(Lua l, LuaPlugin plugin) {
l.pushNil();
try {
object.setLength((long) l.checkNumber(2));
} catch (IOException e) {
l.pushNil();
l.pushString("IOException: " + e.getMessage());
return 2;
}
return 1;
}
public int luaCB_write(Lua l, LuaPlugin plugin) {
l.pushNil();
l.pushNil();
try {
long offset = (long) l.checkNumber(2);
String towrite = l.checkString(3);
if (towrite == "") {
l.pushBoolean(true);
return 1;
}
byte[] tmp = new byte[towrite.length()];
object.seek(offset);
for (int i = 0; i < towrite.length(); i++) tmp[i] = (byte) towrite.charAt(i);
object.write(tmp);
l.pushBoolean(true);
} catch (IOException e) {
l.pushBoolean(false);
l.pushString("IOException: " + e.getMessage());
return 2;
}
return 1;
}