DDTCPClient *socket = [[DDTCPClient alloc] init];
socket.delegate = self;

// debug log open
socket.isDebug = YES;
// default is 10, set -1 when reconnect forever
socket.reconnectCount = -1;
// reconnect timeInterval
socket.reconnectTimeInterval = 5;

// Connect
[socket connectHost:host port:port];
    
// Disconnect
[socket disConnect];

// Send data
NSString *registStr = @"I'm register informations";
NSData *registData = [registStr dataUsingEncoding:NSUTF8StringEncoding];
    
[socket sendData:registData];

// Sent heart, just set once, heart data will be send one by one
NSString *heartStr = @"I'm heart informations";
NSData *heartData = [heartStr dataUsingEncoding:NSUTF8StringEncoding];
    
[socket setHeartData:heartData];

- (void)client:(DDTCPClient *)client didReadData:(NSData *)data {
    NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    NSLog(@"DDAsyncSocket -- %@", str);
}
- (void)client:(DDTCPClient *)client didConnect:(NSString *)host port:(uint16_t)port {

}
- (void)clientDidDisconnect:(DDTCPClient *)client {

}