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Updated Echo example

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This commit is contained in:
Mark Qvist 2018-04-25 11:19:19 +02:00
parent db13ad08a9
commit 7d6de5f754
1 changed files with 25 additions and 4 deletions
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29
Examples/Echo.py
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@ -71,7 +71,7 @@ def server_callback(message, packet):
# This initialisation is executed when the users chooses
# to run as a client
def client(destination_hexhash, configpath):
def client(destination_hexhash, configpath, timeout=None):
# We need a binary representation of the destination
# hash that was entered on the command line
try:
@ -124,6 +124,14 @@ def client(destination_hexhash, configpath):
# sent, it will return a PacketReceipt instance.
packet_receipt = echo_request.send()
# If the user specified a timeout, we set this
# timeout on the packet receipt, and configure
# a callback function, that will get called if
# the packet times out.
if timeout != None:
packet_receipt.setTimeout(timeout)
packet_receipt.timeout_callback(packet_timed_out)
# We can then set a delivery callback on the receipt.
# This will get automatically called when a proof for
# this specific packet is received from the destination.
@ -136,7 +144,7 @@ def client(destination_hexhash, configpath):
# user to wait for an announce to arrive.
RNS.log("Destination is not yet known. Wait for an announce to arrive and try again.")
# This method is called when our reply destination
# This function is called when our reply destination
# receives a proof packet.
def packet_delivered(receipt):
if receipt.status == RNS.PacketReceipt.DELIVERED:
@ -150,6 +158,10 @@ def packet_delivered(receipt):
RNS.log("Valid reply received from "+RNS.prettyhexrep(receipt.destination.hash)+", round-trip time is "+rttstring)
# This function is called if a packet times out.
def packet_timed_out(receipt):
if receipt.status == RNS.PacketReceipt.FAILED:
RNS.log("Packet "+RNS.prettyhexrep(receipt.hash)+" timed out")
if __name__ == "__main__":
# Set up command line arguments and start
@ -158,6 +170,7 @@ if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Simple echo server and client utility")
parser.add_argument("-s", "--server", action="store_true", help="wait for incoming packets from clients")
parser.add_argument("--config", action="store", default=None, help="path to alternative Reticulum config directory", type=str)
parser.add_argument("-t", "--timeout", action="store", metavar="s", default=None, help="set a reply timeout in seconds", type=float)
parser.add_argument("destination", nargs="?", default=None, help="hexadecimal hash of the server destination", type=str)
args = parser.parse_args()
@ -167,14 +180,22 @@ if __name__ == "__main__":
configarg = args.config
server(configarg)
else:
configarg=None
if args.config:
configarg = args.config
else:
configarg = None
if args.timeout:
timeoutarg = float(args.timeout)
else:
timeoutarg = None
if (args.destination == None):
print("")
parser.print_help()
print("")
else:
client(args.destination, configarg)
client(args.destination, configarg, timeout=timeoutarg)
except KeyboardInterrupt:
print("")
exit()