Limiting socket speed for debugging purposes

[vlad-mal]

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Issue description

Hello. It so happens that my ZMQ-based system works with clients connected via channels (tcp) with very different data transfer rates.
   All this needs to be somehow configured and debugged.
Question: Is it possible to set a limit on the data transfer rate in the channel when creating a client socket? Or some other way to imitate a slow channel?
Thank you.

Environment

The server uses the ROUTER socket, the client uses the DIALER sockets if that's important.
C/C++ (MSVS 2023).

• libzmq version (commit hash if unreleased): 4.3.4
• OS: Windows, Linux

Regards, Malinosky Vladimir