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tractor/examples/parallelism/we_are_processes.py

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Python

"""
Run with a process monitor from a terminal using:
$TERM -e watch -n 0.1 "pstree -a $$" & python examples/parallelism/we_are_processes.py || kill $!
"""
from multiprocessing import cpu_count
import os
import tractor
import trio
async def target():
print(f"Yo, i'm {tractor.current_actor().name} "
f"running in pid {os.getpid()}")
await trio.sleep_forever()
async def main():
async with tractor.open_nursery() as n:
for i in range(cpu_count()):
await n.run_in_actor(target, name=f'worker_{i}')
print('This process tree will self-destruct in 1 sec...')
await trio.sleep(1)
# you could have done this yourself
raise Exception('Self Destructed')
if __name__ == '__main__':
trio.run(main)