Flowdock
accept_nonblock() public

Accepts an incoming connection using accept(2) after O_NONBLOCK is set for the underlying file descriptor. It returns an array containg the accpeted socket for the incoming connection, client_socket, and a string that contains the struct sockaddr information about the caller, client_sockaddr.

Example

     # In one script, start this first
     require 'socket'
     include Socket::Constants
     socket = Socket.new(AF_INET, SOCK_STREAM, 0)
     sockaddr = Socket.sockaddr_in(2200, 'localhost')
     socket.bind(sockaddr)
     socket.listen(5)
     begin
       client_socket, client_sockaddr = socket.accept_nonblock
     rescue Errno::EAGAIN, Errno::EWOULDBLOCK, Errno::ECONNABORTED, Errno::EPROTO, Errno::EINTR
       IO.select([socket])
       retry
     end
     puts "The client said, '#{client_socket.readline.chomp}'"
     client_socket.puts "Hello from script one!"
     socket.close

     # In another script, start this second
     require 'socket'
     include Socket::Constants
     socket = Socket.new(AF_INET, SOCK_STREAM, 0)
     sockaddr = Socket.sockaddr_in(2200, 'localhost')
     socket.connect(sockaddr)
     socket.puts "Hello from script 2."
     puts "The server said, '#{socket.readline.chomp}'"
     socket.close

Refer to Socket#accept for the exceptions that may be thrown if the call to accept_nonblock fails.

Socket#accept_nonblock may raise any error corresponding to accept(2) failure, including Errno::EAGAIN.

See

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