Is there a way to programatically know when a pgm zeromq socket has stopped forwarding information because the ZMQ_RATE limit has been reached or if it is dropping data because the ZMQ_SNDHWM limit has been reached. There is a zmq_socket_monitor function call that allows the user to see events like client connect and client disconnect. I am thinking that there should be a similar construct for the rate limit.
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Q :
"Is there a way to programatically know when a ... zeromq socket has stopped forwarding ... because ..." ?
A :
to the best of my knowledge and knowing limits thereof, there is no such way implemented so far.
If bets on reasoning for not having a way, I'd put my few cents on
(a)
such feature having zero-( if not negative )-effects on ZeroMQ primary goals, that are maximum performance, minimised resources needs to achieve performance and minimum latency
(b)
anyone, capable of providing a stable & acceptable implementation of this feature into the core & c-API could've been warm welcome to implement it, yet no one has put one's efforts into developing & testing & accepting it so far, so we stay in 2022-Q1 still in square number one
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