Max Number of ROS2 Handles in colcon.meta

[mampane-reframe]

In my colcon.meta I increased the max number of ROS2 handles. Is there an upper limit on what the max can be set to? What is it and why?

{
    "names": {
        "rmw_microxrcedds": {
            "cmake-args": [
                "-DRMW_UXRCE_MAX_NODES=1",
                "-DRMW_UXRCE_MAX_PUBLISHERS=20",
                "-DRMW_UXRCE_MAX_SUBSCRIPTIONS=20",
                "-DRMW_UXRCE_MAX_SERVICES=20",
                "-DRMW_UXRCE_MAX_CLIENTS=20",
                "-DRMW_UXRCE_MAX_HISTORY=20",
                "-DRMW_UXRCE_TRANSPORT=custom",
                "-DRMW_UXRCE_MAX_GUARD_CONDITION=6",
                "-DRMW_UXRCE_MAX_WAIT_SETS=6"
            ]
        }
    }
}

Thanks!

[hippo5329]

It is limited by available memory. Most arduino boards have very limited memory, eg due 96k. Esp32 has 520k. Pico has 256K. Teensy 4 has 1M.

[mampane-reframe]

Thank you!