def test_zmq_recv(self):
from zmq.cffi_core.constants import REQ, REP
from zmq.cffi_core._cffi import C, ffi
ctx = C.zmq_ctx_new()
sender = C.zmq_socket(ctx, REQ)
receiver = C.zmq_socket(ctx, REP)
assert 0 == C.zmq_bind(receiver, 'tcp://*:2222')
assert 0 == C.zmq_connect(sender, 'tcp://127.0.0.1:2222')
import time
time.sleep(0.1)
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)
assert 5 == C.zmq_msg_send(zmq_msg, sender, 0)
assert 5 == C.zmq_msg_recv(zmq_msg2, receiver, 0)
assert 5 == C.zmq_msg_size(zmq_msg2)
assert b"Hello" == ffi.buffer(C.zmq_msg_data(zmq_msg2),
C.zmq_msg_size(zmq_msg2))[:]
assert C.zmq_close(sender) == 0
assert C.zmq_close(receiver) == 0
assert C.zmq_ctx_destroy(ctx) == 0
def test_zmq_poll(self):
from zmq.cffi_core.constants import REQ, REP, NOBLOCK, POLLIN, POLLOUT
from zmq.cffi_core._cffi import C, ffi
ctx = C.zmq_ctx_new()
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_msg_send(zmq_msg, sender, 0)
print(ffi.string(C.zmq_strerror(C.zmq_errno())))
assert ret == 5
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_msg_recv(zmq_msg2, receiver, 0)
assert ret_recv == 5
assert 5 == C.zmq_msg_size(zmq_msg2)
assert b"Hello" == ffi.buffer(C.zmq_msg_data(zmq_msg2),
C.zmq_msg_size(zmq_msg2))[:]
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)
assert 11 == C.zmq_msg_send(zmq_msg_again, receiver, 0)
import time
time.sleep(0.2)
assert 0 <= C.zmq_poll(sender_pollitem, 1, 0)
assert int(sender_pollitem.revents) & POLLIN
assert 11 == C.zmq_msg_recv(zmq_msg2, sender, 0)
assert 11 == C.zmq_msg_size(zmq_msg2)
assert b"Hello Again" == ffi.buffer(C.zmq_msg_data(zmq_msg2),
int(C.zmq_msg_size(zmq_msg2)))[:]
assert 0 == C.zmq_close(sender)
assert 0 == C.zmq_close(receiver)
assert 0 == C.zmq_ctx_destroy(ctx)
assert 0 == C.zmq_msg_close(zmq_msg)
assert 0 == C.zmq_msg_close(zmq_msg2)
assert 0 == C.zmq_msg_close(zmq_msg_again)