In a game project of mine i'm trying my best to avoid the creation of objects and thus preventing the garbage collector from running.
It is a network game and I am mostly sending byte arrays of data but also some other objects like int arrays.
I have noticed when analyzing the memory allocation in eclipse that there are alot of byte arrays created in my program by the way I'm writing/reading to/from the sockets.
oos=new ObjectOutputStream(new BufferedOutputStream(link.getOutputStream()));
ois=new ObjectInputStream(new BufferedInputStream(link.getInputStream()));
How can I read / write (mostly byte arrays) from / to sockets without creating any more objects in the background?
Also what would be the fastest way to do this network communication? I need to squeez every bit of performance out of this application.
EDIT
I have changed my code a bit and i now only send loose bytes and ints through the oos. Still there is allocations done.
Reading code
@Override
public void run() {
super.run();
byte packet = -1;
while(connected){
try {
packet = ois.readByte();
handlePacket(packet);
} catch (OptionalDataException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
connected=false;
}
}
}
@Override
public void handlePacket(byte b) throws OptionalDataException, ClassNotFoundException, IOException {
super.handlePacket(b);
//TODO add more packets
switch(b){
case Packet.SERVER_SEND_PLAYER_LOCATIONS:
this.locations=(int[]) ois.readObject();
break;
case Packet.SERVER_SEND_PLAYER_COLORS:
this.colors= (int[]) ois.readObject();
break;
case Packet.SERVER_SEND_WORM_WIDTH:
wormWidth = ois.read();
break;
case Packet.SERVER_SEND_PLAYER_NUMBER:
numberOfPlayers = ois.read();
break;
case Packet.CS_SEND_TURN:
gp.addTurn(ois.read(),ois.read(),ois.readByte());
break;
}
}
Writing
public void send(byte value){
try {
oos.write(value);
oos.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void send(int value){
try {
oos.write(value);
oos.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
