Objective-C

Move a Connection into a Socket Set

Demonstrates Socket.TakeSocket, which moves a connection into a newly created member of this object's socket set. After one or more calls, the object acts as a set of sockets.

Background. A socket set groups multiple connections so they can be monitored together with the SelectForReading and SelectForWriting methods. After success, the source socket holds no connection.

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Objective-C

#import <CkoSocket.h>

BOOL success = NO;

CkoSocket *listenSock = [[CkoSocket alloc] init];

success = [listenSock BindAndListen: [NSNumber numberWithInt: 5000] backlog: [NSNumber numberWithInt: 25]];
if (success == NO) {
    NSLog(@"%@",listenSock.LastErrorText);
    return;
}

CkoSocket *connectedSock = [[CkoSocket alloc] init];
success = [listenSock AcceptNext: [NSNumber numberWithInt: 20000] socket: connectedSock];
if (success == NO) {
    NSLog(@"%@",listenSock.LastErrorText);
    return;
}

//  Move the connection out of connectedSock and into a newly created member of this object's socket
//  set.  After one or more such calls, socketSet acts as a set of connected sockets (useful with the
//  SelectForReading / SelectForWriting methods).  After success, connectedSock holds no connection.
CkoSocket *socketSet = [[CkoSocket alloc] init];
success = [socketSet TakeSocket: connectedSock];
if (success == NO) {
    NSLog(@"%@",socketSet.LastErrorText);
    return;
}

NSLog(@"%@",@"Connection added to the socket set.");