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Add cancellation token to hooks and pipeline bootstrap #345

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Add cancellation token to hooks and pipeline bootstrap #345

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4 changes: 4 additions & 0 deletions src/saturn_engine/worker/executors/executable.py
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@ def __init__(
self.output = output
self.resources: dict[str, ResourceContext] = {}
self.queue = queue
self.is_cancelled = False

@property
def id(self) -> str:
Expand Down Expand Up @@ -93,6 +94,9 @@ def saturn_context(self) -> t.Iterator[None]:
with job_context(self.queue.definition), message_context(self.message.message):
yield

def cancel(self) -> None:
self.is_cancelled = True


class ExecutableQueue:
def __init__(
Expand Down
6 changes: 6 additions & 0 deletions src/saturn_engine/worker/executors/queue.py
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,10 @@
from .executable import ExecutableMessage


class MessageCancelled(Exception):
pass


class ExecutorQueue:
CLOSE_TIMEOUT = datetime.timedelta(seconds=60)

Expand Down Expand Up @@ -68,6 +72,8 @@ async def scope(
xmsg: ExecutableMessage,
) -> PipelineResults:
try:
if xmsg.is_cancelled:
raise MessageCancelled
return await self.executor.process_message(xmsg)
except Exception:
exc_type, exc_value, exc_traceback = sys.exc_info()
Expand Down