Example #1
0
def test_zmq_recv():
    from zmqpy.constants import REQ, REP, NOBLOCK
    from zmqpy._cffi import C, ffi

    ctx = C.zmq_init(1)

    sender = C.zmq_socket(ctx, REQ)
    receiver = C.zmq_socket(ctx, REP)

    r1 = C.zmq_bind(receiver, 'tcp://*:3333')
    r2 = C.zmq_connect(sender, 'tcp://127.0.0.1:3333')

    zmq_msg = ffi.new('zmq_msg_t*')
    message = ffi.new('char[5]', 'Hello')

    C.zmq_msg_init_data(zmq_msg,
                        ffi.cast('void*', message),
                        ffi.cast('size_t', 5),
                        ffi.NULL,
                        ffi.NULL)

    zmq_msg2 = ffi.new('zmq_msg_t*')
    C.zmq_msg_init(zmq_msg2)

    ret = C.zmq_send(sender, zmq_msg, 0)
    ret2 = C.zmq_recv(receiver, zmq_msg2, 0)

    assert ret == ret2 == 0
    assert 5 == C.zmq_msg_size(zmq_msg2)
    assert "Hello" == ffi.string(ffi.cast('char*', C.zmq_msg_data(zmq_msg2)))

    assert C.zmq_close(sender) == 0
    assert C.zmq_close(receiver) == 0
    assert C.zmq_term(ctx) == 0
Example #2
0
def test_zmq_poll():
    from zmqpy.constants import REQ, REP, NOBLOCK, POLLIN, POLLOUT
    from zmqpy._cffi import C, ffi

    ctx = C.zmq_init(1)

    sender = C.zmq_socket(ctx, REQ)
    receiver = C.zmq_socket(ctx, REP)

    r1 = C.zmq_bind(receiver, 'tcp://*:3333')
    r2 = C.zmq_connect(sender, 'tcp://127.0.0.1:3333')

    zmq_msg = ffi.new('zmq_msg_t*')
    message = ffi.new('char[5]', 'Hello')

    C.zmq_msg_init_data(zmq_msg,
                        ffi.cast('void*', message),
                        ffi.cast('size_t', 5),
                        ffi.NULL,
                        ffi.NULL)

    receiver_pollitem = ffi.new('zmq_pollitem_t*')
    receiver_pollitem.socket = receiver
    receiver_pollitem.fd = 0
    receiver_pollitem.events = POLLIN | POLLOUT
    receiver_pollitem.revents = 0

    ret = C.zmq_poll(ffi.NULL, 0, 0)
    assert ret == 0

    ret = C.zmq_poll(receiver_pollitem, 1, 0)
    assert ret == 0

    ret = C.zmq_send(sender, zmq_msg, 0)
    assert ret == 0

    assert C.zmq_msg_close(zmq_msg) == 0

    import time
    time.sleep(0.2)

    ret = C.zmq_poll(receiver_pollitem, 1, 0)
    assert ret == 1

    assert int(receiver_pollitem.revents) & POLLIN
    assert not int(receiver_pollitem.revents) & POLLOUT

    zmq_msg2 = ffi.new('zmq_msg_t*')
    C.zmq_msg_init(zmq_msg2)

    ret_recv = C.zmq_recv(receiver, zmq_msg2, 0)
    assert ret_recv == 0

    assert 5 == C.zmq_msg_size(zmq_msg2)
    assert "Hello" == ffi.string(ffi.cast('char*', C.zmq_msg_data(zmq_msg2)))

    #assert C.zmq_msg_close(zmq_msg2) == 0

    sender_pollitem = ffi.new('zmq_pollitem_t*')
    sender_pollitem.socket = sender
    sender_pollitem.fd = 0
    sender_pollitem.events = POLLIN | POLLOUT
    sender_pollitem.revents = 0

    ret = C.zmq_poll(sender_pollitem, 1, 0)
    assert ret == 0

    zmq_msg_again = ffi.new('zmq_msg_t*')
    message_again = ffi.new('char[11]', 'Hello Again')

    C.zmq_msg_init_data(zmq_msg_again,
                        ffi.cast('void*', message_again),
                        ffi.cast('size_t', 11),
                        ffi.NULL,
                        ffi.NULL)

    ret_send = C.zmq_send(receiver, zmq_msg_again, 0)
    assert ret_send == 0

    import time
    time.sleep(0.2)

    ret = C.zmq_poll(sender_pollitem, 1, 0)

    assert ret >= 0
    assert int(sender_pollitem.revents) & POLLIN

    ret_recv = C.zmq_recv(sender, zmq_msg2, 0)
    assert ret_recv == 0

    assert 11 == C.zmq_msg_size(zmq_msg2)
    assert "Hello Again" == ffi.buffer(C.zmq_msg_data(zmq_msg2), int(C.zmq_msg_size(zmq_msg2)))[:]
    assert C.zmq_close(sender) == 0
    assert C.zmq_close(receiver) == 0
    assert C.zmq_term(ctx) == 0