An asynchronous task queue with priority support.
Project description
An asynchronous task queue with priority support.
from wcpan.worker import AsyncQueue, Task
class HighPriorityTask(Task):
@property
def priority(self) -> int:
return 2
class LowPriorityTask(Task):
@property
def priority(self) -> int:
return 1
# Note this queue is non-preemptive.
queue = AsyncQueue()
queue.start()
# function_2 will come first.
queue.post(LowPriorityTask(function_1))
queue.post(HighPriorityTask(function_2))
# cancel pending tasks
queue.flush()
# wait for executing task (if any) ends, then stop the queue
await queue.stop()
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