NDK how to limit the number of client connection

Daniel,

Unfortunately the NDK does not have support for capping the max number of (concurrent) TCP connections.

As Prasad already mentioned, the maxConn parameter to listen() will set the maximum number of pending connections allowed on the socket (it's the length of the queue).   The config param Ip.socketMaxConnections will cap the value that's passed into listen() via the maxConn arg (e.g. if socketMaxConnections = 5, but a call is made like listen(s0, 20), the value of 20 will be forced down to the max value of 5).

How many sockets is your server creating?

More specifically, are you creating a single server socket, let's say "s0", and then accepting new connections ("s1", "s2", etc.) on "s0"?

e.g. something similar to the following:

s0 = socket();

bind(s0, ...);

listen(s0, <maxConn>);

while((sn = accept(s0, ...)) // accept incoming connections on new sockets (s1, s2 ... sn)

If so, and you have just a single server socket, listening/accepting (like above) in a single Task, then the easiest way for you to handle this might be to manage it yourself, within your Task.

Steve