create
This block is part of the threads group and was last modified in core v10.4.28.
create v10.4.28 - flow
flow - name required
value
- flow
flow - Running
condition - error
value - On Startup
execute_function - On Shutdown
execute_function - On Message
execute_function
Claims a named thread for the whole cluster and reports on `running` whether THIS node took it. The claim is per entity and per name, so exactly one node answers true no matter how many run the blueprint : which is what makes it the right place to put startup work that must happen once, given system_event_startup itself fires on every node. A node that loses answers running=false with error THREAD_ALREADY_CLAIMED; branch on `running` rather than assuming it. The claim is released by function_shutdown_thread, and lapses on its own shortly after the holding node stops.
A typical wiring for create: a function trigger starts the flow; the function out pin wires to an execute block.
Version history
Introduced in v10.4.28.
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