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require 'ffi-rzmq'
Thread.abort_on_exception = true
require 'openssl'
require 'socket'
require 'securerandom'
# define some version guards so we can turn on/off specs based upon
# the version of the 0mq library that is loaded
def version4?
ZMQ::LibZMQ.version4?
end
def jruby?
RUBY_PLATFORM =~ /java/
end
def connect_to_inproc(socket, endpoint)
begin
rc = socket.connect(endpoint)
end until ZMQ::Util.resultcode_ok?(rc)
end
module APIHelper
def poller_setup
@helper_poller = ZMQ::Poller.new
end
def poller_register_socket(socket)
@helper_poller.register(socket, ZMQ::POLLIN)
end
def poller_deregister_socket(socket)
@helper_poller.deregister(socket, ZMQ::POLLIN)
end
def poll_delivery
# timeout after 1 second
@helper_poller.poll(1000)
end
def poll_it_for_read(socket, &blk)
poller_register_socket(socket)
blk.call
poll_delivery
poller_deregister_socket(socket)
end
# generate a random port between 10_000 and 65534
def random_port
rand(55534) + 10_000
end
def bind_to_random_tcp_port(socket, max_tries = 500)
tries = 0
rc = -1
while !ZMQ::Util.resultcode_ok?(rc) && tries < max_tries
tries += 1
random = random_port
rc = socket.bind(local_transport_string(random))
end
unless ZMQ::Util.resultcode_ok?(rc)
raise "Could not bind to random port successfully; retries all failed!"
end
random
end
def connect_to_random_tcp_port socket, max_tries = 500
tries = 0
rc = -1
while !ZMQ::Util.resultcode_ok?(rc) && tries < max_tries
tries += 1
random = random_port
rc = socket.connect(local_transport_string(random))
end
unless ZMQ::Util.resultcode_ok?(rc)
raise "Could not connect to random port successfully; retries all failed!"
end
random
end
def local_transport_string(port)
"tcp://127.0.0.1:#{port}"
end
def assert_ok(rc)
raise "Failed with rc [#{rc}] and errno [#{ZMQ::Util.errno}], msg [#{ZMQ::Util.error_string}]! #{caller(0)}" unless rc >= 0
end
end
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