A mesh of 3 users means each user sets up two connections, one to each of the other two users. At each client’s end, these are two entirely different RTCPeerConnections, and you can’t reuse candidates between them, as each candidate contains port numbers allocated specifically for the media and the target it is to be … Read more
Skype works in a very interesting way. From what I’ve read (and this is a while ago) it works as follows: Skype server maintains a list of all users and IPs. Skype user A wants to speak to user B Skype user A sends a network packet to user B’s IP address and waits for … Read more
BitTorrent does not need to connect to any particular member in a swarm, it’s not a p2p chat protocol where two specific end points want to talk to each other. All it cares about is that the connection graph of the swarm has a sufficiently high connectivity degree. In other words, getting clients behind a … Read more
Since I don’t know what information you are looking for, I’ll try to describe how to set up a socket program and what pitfalls I’ve run into. To start with, *read the Winsock tutorial at MSDN. This is a basic program to connect, send a message and disconnect. It’s great for getting a feel for … Read more
Here’s a bug report on the feature you’re requesting. It’s status is “reviewed” but I don’t believe it’s been implemented yet. http://code.google.com/p/android/issues/detail?id=82
No. Browsers can only initiate WebSockets connections, not receive them. The W3C browser API spec only defines how to start an outbound connection. You can make an application that would both initiate and accept WebSockets connections, but browsers do not do this. You might look at Pusher App which you could use to build a … Read more
Here on Stackoverflow are several topics about P2P connections in browsers: Will HTML5 allow web apps to make peer-to-peer HTTP connections? What techniques are available to do P2P in the browser? Does HTML5 Support Peer-to-Peer (and not just WebSockets) Can HTML5 Websockets connect 2 clients (browsers) directly without using a server (P2P) Is it possible … Read more
You can get the device model number using uname from sys/utsname.h. For example: #import <sys/utsname.h> NSString* machineName() { struct utsname systemInfo; uname(&systemInfo); return [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding]; } The result should be: @”i386″ on the simulator @”iPod1,1″ on iPod Touch @”iPod2,1″ on iPod Touch Second Generation @”iPod3,1″ on iPod Touch Third Generation @”iPod4,1″ on iPod Touch … Read more
P2P connectivity in a nutshell. Assume we’re talking about UDP here. The steps below can also be applied to TCP with some adjustments. Enumerate all your local IP addresses (usually only 1). Create a UDP socket on a given port number** for each adapter with an IP address. For each socket created in step 1, … Read more