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April 11, 2013

Introducing FastSocket

by Dan

FastSocket is a fast, synchronous Objective-C wrapper around BSD sockets for iOS and OS X. Use it to send and receive files or raw bytes over a socket very quickly. This is the class to use if fast network communication is what you need. An asynchronous API might be better if you want to do something else while your network operations finish.

UPDATE: Now available as a CocoaPod

I wrote FastSocket a couple years ago, and put it up on GitHub, but don’t think I ever mentioned it. There are classes for both clients and servers. It’s available under the MIT license. Please feel free to let me know if you have any problems, questions or suggestions.

To create and connect a client socket:

FastSocket *client = [[FastSocket alloc] initWithHost:@"localhost" andPort:@"34567"];
[client connect];

Send a file:

long sent = [client sendFile:@"/tmp/filetosend.txt"];

Receive a file of a given length:

long received = [client receiveFile:@"/tmp/newlyreceivedfile.txt" length:1024];

Send raw bytes:

char data[] = {42};
long sent = [client sendBytes:data count:1];

Receive raw bytes:

char data[42];
long received = [client receiveBytes:data limit:42];

Close the connection:

[client close];

Please check out the unit tests for more examples of how to use these classes.

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