37 lines
1.3 KiB
Python
37 lines
1.3 KiB
Python
import time
|
|
import asyncio
|
|
from asyncevents import on_event, emit, wait
|
|
|
|
|
|
@on_event("hello")
|
|
async def hello(_, event: str):
|
|
print(f"Hello {event!r}!")
|
|
|
|
|
|
@on_event("hi")
|
|
async def hi(_, event: str):
|
|
print(f"Hi {event!r}! I'm going to sleep for 5 seconds")
|
|
await asyncio.sleep(5) # Simulates some work
|
|
|
|
|
|
async def main():
|
|
print("Firing blocking event 'hello'")
|
|
await emit("hello") # This call blocks until hello() terminates
|
|
print("Handlers for event 'hello' have exited")
|
|
# Notice how, until here, the output is in order: this is on purpose!
|
|
# When using blocking mode, asyncevents even guarantees that handlers
|
|
# with different priorities will be executed in order
|
|
print("Firing blocking event 'hello'")
|
|
await emit("hi", block=False) # This one spawns hi() and returns immediately
|
|
print("Non-blocking event 'hello' fired")
|
|
await emit("event3") # Does nothing: No handlers registered for event3!
|
|
# We wait now for the the handler of the "hi" event to complete
|
|
t = time.time()
|
|
print("Waiting on event 'hi'")
|
|
await wait("hi") # Waits until all the handlers triggered by the "hi" event exit
|
|
print(f"Waited for {time.time() - t:.2f} seconds") # Should print roughly 5 seconds
|
|
|
|
|
|
if __name__ == "__main__":
|
|
asyncio.run(main())
|