Disable Nagle algorithm (TCP_NODELAY) in Cocoa AsyncSocket library

#import // for IPPROTO_TCP

#include // for TCP_NODELAY

- (void)onSocket:(AsyncSocket *)sock

didConnectToHost:(NSString *)host port:(UInt16)port

{

NSLog(@"client - didConnectToHost");

// etc etc ..

// Add exactly the following code to disable Nagling:

CFSocketRef cfsock = [sock getCFSocket];

CFSocketNativeHandle rawsock = CFSocketGetNative(cfsock);

int flag = 1;

int result = setsockopt(rawsock, IPPROTO_TCP, TCP_NODELAY,

(char *)&flag, sizeof(int));

if (result != 0)

NSLog(@"Could Not Disable Nagle...");

else

NSLog(@"Nagle Is Disabled.");

}

}

Note that you need the two includes, just for the two constants mentioned in the code. Source