Created
October 2, 2018 16:59
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Estableciendo parámetros en un socket ZMQ_SUB creado para reunir cumplimiento de requisitos no funcionales de eficiencia y seguridad en el manejo de conexiones ZMQQ
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zmq_VERSION = zmq.zmq_version_info() | |
anAgentsIDENTITY = whateverHashOrHumanReadableSTRING | |
notMINE = anAgentsIDENTITY | |
if zmq_VERSION[0] < 4: | |
print "ZMQ{0:} ver < than expected, will exit".format( zmq_VERSION ) | |
aCTX = zmq.Context( 2 ) # if performance boosting is needed | |
#SUB --------------------------------------------------------------------------- | |
aSUB = aCTX.socket( zmq.SUB ) | |
aSUB.setsockopt( zmq.LINGER, 0 ) # protect your agent | |
aSUB.setsockopt( zmq.MAXMSGSIZE, m ) # protect your agent from DoS | |
aSUB.setsockopt( zmq.AFFINITY, 1 ) # protect your server resources | |
aSUB.setsockopt( zmq.HEARTBEAT_IVL, ivl ) # set server helping Heartbeats | |
aSUB.setsockopt( zmq.HEARTBEAT_TTL, ttl ) # set server helping Heartbeats | |
aSUB.setsockopt( zmq.INVERT_MATCHING, 1 ) # avoid server sending data back | |
aSUB.setsockopt( zmq.SUBSCRIBE, notMINE ) # NEVER .recv()-s data back | |
... | |
#SUB PERFORMANCE & RESOURCES TWEAKING DETAILS GO WAY BEYOND THE SCOPE OF THIS POST | |
aSUB.connect( "tcp://localhost:5557" ) | |
#PUSH -------------------------------------------------------------------------- | |
aPUSH = aCTX.socket( zmq.PUSH ) | |
... | |
#PUSH PERFORMANCE & RESOURCES TWEAKING DETAILS GO WAY BEYOND THE SCOPE OF THIS POST | |
#main loop --------------------------------------------------------------------- | |
pass; notSoftFLAG = True; anAgentSignsWithIdentityPREFIX = anAgentsIDENTITY | |
while notSoftFLAG: | |
if aReasonToSendSomethingToServer: | |
aPUSH.send( anAgentSignsWithIdentityPREFIX | |
+ ":::" | |
+ aMsgPAYLOAD, | |
zmq.DONTWAIT | |
) # inspect ZMQError | |
... | |
pass | |
if aSUB.poll( 100 ): | |
message = aSUB.recv( zmq.DONTWAIT ) # NEVER .recv()-s own data back | |
... | |
pass | |
if aReasonToFlagLoopEXIT: | |
notSoftFLAG = False | |
... | |
pass | |
if ...: | |
... | |
pass | |
#main loop --------------------------------------------------------------------- | |
pass | |
######### | |
# ALWAYS: | |
# better using context-aware try:/except:/finally: | |
aRetCODE = [ aSOCK.close() for aSOCK in ( aSUB, aPUSH, ) ] | |
... | |
aCTX.term() | |
# .term() | |
######### |
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