Bump "task-manager(-nursery)" naming, add logging
Namely just renaming any `trio.Nursery` instances to `tn`, the primary `@acm`-API to `.trionics.open_taskman()` and change out all `print()`s for logger instances with 'info' level enabled by the mod-script usage.oco_supervisor_prototype
Tyler Goodlet
parent
3acf69be8b
commit
05a02d97b4
|
|
@ -15,13 +15,14 @@
|
|||
# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
|
||||
'''
|
||||
Erlang-style (ish) "one-cancels-one" nursery.
|
||||
Erlang-style (ish) "one-cancels-one" nursery, what we just call
|
||||
a "task manager".
|
||||
|
||||
'''
|
||||
from __future__ import annotations
|
||||
from contextlib import (
|
||||
asynccontextmanager as acm,
|
||||
contextmanager as cm,
|
||||
# contextmanager as cm,
|
||||
)
|
||||
from functools import partial
|
||||
from typing import (
|
||||
|
|
@ -35,11 +36,17 @@ from outcome import (
|
|||
)
|
||||
from msgspec import Struct
|
||||
import trio
|
||||
from trio._core._run import (
|
||||
Task,
|
||||
from trio import (
|
||||
TaskStatus,
|
||||
CancelScope,
|
||||
Nursery,
|
||||
)
|
||||
from trio.lowlevel import (
|
||||
Task,
|
||||
)
|
||||
from tractor.log import get_logger
|
||||
|
||||
log = get_logger(__name__)
|
||||
|
||||
|
||||
class TaskOutcome(Struct):
|
||||
|
|
@ -101,7 +108,7 @@ class TaskOutcome(Struct):
|
|||
|
||||
|
||||
class TaskManagerNursery(Struct):
|
||||
_n: Nursery
|
||||
_tn: Nursery
|
||||
_scopes: dict[
|
||||
Task,
|
||||
tuple[CancelScope, Outcome]
|
||||
|
|
@ -127,20 +134,20 @@ class TaskManagerNursery(Struct):
|
|||
# assert len(new_tasks) == 1
|
||||
# task = new_tasks.pop()
|
||||
|
||||
n: Nursery = self._n
|
||||
tn: Nursery = self._tn
|
||||
|
||||
sm = self.task_manager
|
||||
# we do default behavior of a scope-per-nursery
|
||||
# if the user did not provide a task manager.
|
||||
if sm is None:
|
||||
return n.start_soon(async_fn, *args, name=None)
|
||||
return tn.start_soon(async_fn, *args, name=None)
|
||||
|
||||
new_task: Task | None = None
|
||||
# new_task: Task|None = None
|
||||
to_return: tuple[Any] | None = None
|
||||
|
||||
# NOTE: what do we enforce as a signature for the
|
||||
# `@task_scope_manager` here?
|
||||
mngr = sm(nursery=n)
|
||||
mngr = sm(nursery=tn)
|
||||
|
||||
async def _start_wrapped_in_scope(
|
||||
task_status: TaskStatus[
|
||||
|
|
@ -190,7 +197,7 @@ class TaskManagerNursery(Struct):
|
|||
else:
|
||||
raise RuntimeError(f"{mngr} didn't stop!")
|
||||
|
||||
to_return = await n.start(_start_wrapped_in_scope)
|
||||
to_return = await tn.start(_start_wrapped_in_scope)
|
||||
assert to_return is not None
|
||||
|
||||
# TODO: use the fancy type-check-time type signature stuff from
|
||||
|
|
@ -222,7 +229,7 @@ def add_task_handle_and_crash_handling(
|
|||
'''
|
||||
# if you need it you can ask trio for the task obj
|
||||
task: Task = trio.lowlevel.current_task()
|
||||
print(f'Spawning task: {task.name}')
|
||||
log.info(f'Spawning task: {task.name}')
|
||||
|
||||
# User defined "task handle" for more granular supervision
|
||||
# of each spawned task as needed for their particular usage.
|
||||
|
|
@ -247,18 +254,27 @@ def add_task_handle_and_crash_handling(
|
|||
# Adds "crash handling" from `pdbp` by entering
|
||||
# a REPL on std errors.
|
||||
except Exception as err:
|
||||
print(f'{task.name} crashed, entering debugger!')
|
||||
if debug_mode:
|
||||
log.exception(
|
||||
f'{task.name} crashed, entering debugger!'
|
||||
)
|
||||
import pdbp
|
||||
pdbp.xpm()
|
||||
raise
|
||||
|
||||
raise err
|
||||
|
||||
finally:
|
||||
print(f'{task.name} Exitted')
|
||||
log.info(
|
||||
f'Task exitted\n'
|
||||
f')>\n'
|
||||
f' |_{task}\n'
|
||||
# ^^TODO? use sclang formatter?
|
||||
# -[ ] .devx.pformat.nest_from_op()` yo!
|
||||
)
|
||||
|
||||
|
||||
@acm
|
||||
async def open_nursery(
|
||||
async def open_taskman(
|
||||
task_manager: Generator[Any, Outcome, None] | None = None,
|
||||
|
||||
**lowlevel_nursery_kwargs,
|
||||
|
|
@ -281,7 +297,7 @@ async def ensure_cancelled():
|
|||
|
||||
except trio.Cancelled:
|
||||
task = trio.lowlevel.current_task()
|
||||
print(f'heyyo ONLY {task.name} was cancelled as expected B)')
|
||||
log.cancel(f'heyyo ONLY {task.name} was cancelled as expected B)')
|
||||
assert 0
|
||||
|
||||
except BaseException:
|
||||
|
|
@ -290,30 +306,33 @@ async def ensure_cancelled():
|
|||
|
||||
if __name__ == '__main__':
|
||||
|
||||
from tractor.log import get_console_log
|
||||
get_console_log(level='info')
|
||||
|
||||
async def main():
|
||||
async with open_nursery(
|
||||
async with open_taskman(
|
||||
task_manager=partial(
|
||||
add_task_handle_and_crash_handling,
|
||||
debug_mode=True,
|
||||
),
|
||||
) as sn:
|
||||
) as tm:
|
||||
for _ in range(3):
|
||||
outcome, _ = await sn.start_soon(trio.sleep_forever)
|
||||
outcome, _ = await tm.start_soon(trio.sleep_forever)
|
||||
|
||||
# extra task we want to engage in debugger post mortem.
|
||||
err_outcome, cs = await sn.start_soon(ensure_cancelled)
|
||||
err_outcome, cs = await tm.start_soon(ensure_cancelled)
|
||||
|
||||
val: str = 'yoyoyo'
|
||||
val_outcome, _ = await sn.start_soon(
|
||||
val_outcome, _ = await tm.start_soon(
|
||||
sleep_then_return_val,
|
||||
val,
|
||||
)
|
||||
res = await val_outcome.wait_for_result()
|
||||
assert res == val
|
||||
print(f'{res} -> GOT EXPECTED TASK VALUE')
|
||||
log.info(f'{res} -> GOT EXPECTED TASK VALUE')
|
||||
|
||||
await trio.sleep(0.6)
|
||||
print(
|
||||
log.cancel(
|
||||
f'Cancelling and waiting on {err_outcome.lowlevel_task} '
|
||||
'to CRASH..'
|
||||
)
|
||||
|
|
|
|||
Loading…
Reference in New Issue