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"""
Use a Timer to react to events in another thread
------------------------------------------------
You should never modify Blender data at arbitrary points in time in separate threads.
However you can use a queue to collect all the actions that should be executed when Blender is in the right state again.
Pythons `queue.Queue` can be used here, because it implements the required locking semantics.
"""
import bpy
import queue
execution_queue = queue.Queue()
# This function can safely be called in another thread.
# The function will be executed when the timer runs the next time.
def run_in_main_thread(function):
execution_queue.put(function)
def execute_queued_functions():
while not execution_queue.empty():
function = execution_queue.get()
function()
return 1.0
bpy.app.timers.register(execute_queued_functions)
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