blender/doc/python_api/examples/bpy.app.timers.5.py
Campbell Barton 0ed4cadf5a Docs: use float in bpy.app.timer examples
Makes it clear seconds are not integers,
also avoids conversion to float.
2018-11-28 06:09:42 +11:00

26 lines
855 B
Python

"""
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 savely 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)