def client(msg):
# Set up port and protocol
port = "24124"
binding = "tcp://localhost:%s" % port
binding_ipc = "ipc:///tmp/zmqtest"
ipc_envelope_tag = "client_ipc"
# Set up 0MQ as Request/Response topology
context = zmq.Context()
client_socket = context.socket(zmq.REQ)
# Name the envelope/frameID so the receiver knows who sent it
client_socket.setsockopt(zmq.IDENTITY, 'ipc_envelope_tag')
client_socket.connect(binding_ipc)
time.sleep(0.1)
# Send one message and exit
print("Sending Message of type \"%d\"" % msg.metadata.message_type)
client_socket.send(msg.SerializeToString())
# Wait for response
message = client_socket.recv()
# De-Serialize response
ack = gmessages.Message()
ack.ParseFromString(message)
print("Received reply [%s]" % (ack.control.cmd))
def compose_ack(ack="ACK"):
""" Compose a standard acknowlege message """
# Add the metadata
msg = gmessages.Message()
msg.metadata.message_type = 0
msg.metadata.device_id = 0
msg.metadata.network_id = 0
msg.metadata.application_id = 0
msg.metadata.tx_time = int(time.time())
msg.metadata.sequence = 1
msg.metadata.periph_count = 0
msg.metadata.device_name = "Server"
# Add an ACK command
msg.control.key = 0
msg.control.is_indexed = False
msg.control.cmd = ack
return msg
def server():
# Set up port and protocol
port = "24124"
binding = "tcp://*:%s" % port
binding_ipc = "ipc:///tmp/zmqtest"
# Set up 0MQ as Request/Response topology
context = zmq.Context()
server_socket = context.socket(zmq.ROUTER)
# Bind to the socket
##server_socket.setsockopt(zmq.IDENTITY, 'reader')
server_socket.bind(binding_ipc)
time.sleep(0.1)
while True:
# Receive the mesasage
id_frame, empty_frame, message = server_socket.recv_multipart()
try:
# De-Serialize it
msg = gmessages.Message()
msg.ParseFromString(message)
# Report it
print(("Message of type \"%d\"received from \"%s\" "
"with %d peripherals") %
(msg.metadata.message_type, msg.metadata.device_name,
msg.metadata.periph_count))
for p in msg.peripheral:
print(("Peripheral \"%s\" with id: \"%d\""
" contains payload of \"%s\"") %
(p.peripheral_name, p.peripheral_id, repr(
p.payload)[1:-1]))
print("")
ack = compose_ack("ACK")
except Exception:
ack = compose_ack("NACK")
# Respond to client
server_socket.send_multipart(
[id_frame, empty_frame,
ack.SerializeToString()])
def server():
# Set up port and protocol
port = "24124"
binding = "tcp://*:%s" % port
# Set up 0MQ as Request/Response topology
context = zmq.Context()
server_socket = context.socket(zmq.REP)
# Bind to the socket
server_socket.bind(binding)
while True:
# Receive the mesasage
message = server_socket.recv()
try:
# De-Serialize it
msg = gmessages.Message()
msg.ParseFromString(message)
# Report it
print(("Message of type \"%d\"received from \"%s\" "
"with %d peripherals") %
(msg.metadata.message_type, msg.metadata.device_name,
msg.metadata.periph_count))
for p in msg.peripheral:
print(("Peripheral \"%s\" with id: \"%d\""
" contains payload of \"%s\"") %
(p.peripheral_name, p.peripheral_id, repr(
p.payload)[1:-1]))
print("")
ack = compose_ack("ACK")
except Exception:
ack = compose_ack("NACK")
# Respond to client
server_socket.send(ack.SerializeToString())
def client(msg):
# Set up port and protocol
port = "24124"
binding = "tcp://localhost:%s" % port
# Set up 0MQ as Request/Response topology
context = zmq.Context()
client_socket = context.socket(zmq.REQ)
client_socket.connect(binding)
# Send one message and exit
print("Sending Message of type \"%d\"" % msg.metadata.message_type)
client_socket.send(msg.SerializeToString())
# Wait for response
message = client_socket.recv()
# De-Serialize response
ack = gmessages.Message()
ack.ParseFromString(message)
print("Received reply [%s]" % (ack.control.cmd))
print "Msg time:", msg.metadata.tx_time
print "Sequence:", msg.metadata.sequence
print "Peripheral Count:", msg.metadata.periph_count
print "Device Name:", msg.metadata.device_name
for p in msg.peripheral:
print "Peripheral ID", p.peripheral_id
print "Payload ID", p.payload_id
print "Peripheral Name", p.peripheral_name
print "Payload Name", p.payload_name
print "Payload Attached", p.payload_attached
print "payload", repr(p.payload)[1:-1]
print "payload crc", p.payload_crc
if __name__ == "__main__":
if len(sys.argv) != 2:
print "Usage:", sys.argv[0], "INPUT_FILE"
sys.exit(1)
msg = gmessages.Message()
try:
with open(sys.argv[1], "rb") as f:
msg.ParseFromString(f.read())
except IOError:
print sys.argv[1] + ": File not found."
sys.exit(1)
printMessage(msg)