I am coding a client/server in which requests and responses are handled
on the client and server side by threads communicating with Queues
(because several sessions will share one connection to the server).
In the code below, I expect the client and server to exchange the same
message indefinitely, but between reading the queues and IO, it blocks
somewhere. it doesn’t get further than printing the first request.
require ‘gserver’
require ‘socket’
require ‘zlib’
require ‘yaml’
class ConnectionHandler
def initialize(io)
queue = Queue.new
request_handler = Thread.new do
loop do
req = io.gets(“EOF”).chomp(“EOF”)
puts “client request: #{req}”
queue << “speak your request, my child”
end
end
response_handler = Thread.new do
loop do
res = queue.pop
socket << res << "__EOF__"
end
end
request_handler.join
response_handler.join
end
end
class MyServer < GServer
def initialize(port=10001, *args)
super(port, *args)
end
def serve(io)
ConnectionHandler.new(io)
end
end
Start the server
server = MyServer.new
server.audit = true
server.start
Here follows the client implementation:
socket = TCPSocket.new(‘localhost’, 10001)
cqueue = Queue.new
request_processor = Thread.new {
loop do
req = cqueue.pop
socket << req << “EOF”
end
}
response_processor = Thread.new {
loop do
res = socket.gets(“EOF”).chomp(“EOF”)
puts “server response: #{res}”
cqueue << “enquiring minds want to know”
end
}
This message will start off the conversation
cqueue << “can i speak freely?”
server.join
request_processor.join
response_processor.join