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More cleanup.
[python_utils.git]
/
smart_future.py
diff --git
a/smart_future.py
b/smart_future.py
index 460dcb95862a9a88ecafde45fa8886dbcbb9eaa1..a1f6d97741db715871d404d5a126d87a5601b503 100644
(file)
--- a/
smart_future.py
+++ b/
smart_future.py
@@
-1,11
+1,14
@@
#!/usr/bin/env python3
#!/usr/bin/env python3
-from __future__ import annotations
+"""A future that can be treated like the result that it contains and
+will not block until it is used. At that point, if the underlying
+value is not yet available, it will block until it becomes
+available."""
+from __future__ import annotations
import concurrent
import concurrent.futures as fut
import logging
import concurrent
import concurrent.futures as fut
import logging
-import traceback
from typing import Callable, List, Set, TypeVar
from overrides import overrides
from typing import Callable, List, Set, TypeVar
from overrides import overrides
@@
-31,7
+34,7
@@
def wait_any(
smart_future_by_real_future = {}
completed_futures: Set[fut.Future] = set()
for x in futures:
smart_future_by_real_future = {}
completed_futures: Set[fut.Future] = set()
for x in futures:
- assert
type(x) == SmartFuture
+ assert
isinstance(x, SmartFuture)
real_futures.append(x.wrapped_future)
smart_future_by_real_future[x.wrapped_future] = x
real_futures.append(x.wrapped_future)
smart_future_by_real_future[x.wrapped_future] = x
@@
-44,15
+47,12
@@
def wait_any(
if log_exceptions and not f.cancelled():
exception = f.exception()
if exception is not None:
if log_exceptions and not f.cancelled():
exception = f.exception()
if exception is not None:
- logger.warning(
- f'Future {id(f)} raised an unhandled exception and exited.'
- )
+ logger.warning('Future 0x%x raised an unhandled exception and exited.', id(f))
logger.exception(exception)
raise exception
yield smart_future_by_real_future[f]
if callback is not None:
callback()
logger.exception(exception)
raise exception
yield smart_future_by_real_future[f]
if callback is not None:
callback()
- return
def wait_all(
def wait_all(
@@
-62,7
+62,7
@@
def wait_all(
) -> None:
real_futures = []
for x in futures:
) -> None:
real_futures = []
for x in futures:
- assert
type(x) == SmartFuture
+ assert
isinstance(x, SmartFuture)
real_futures.append(x.wrapped_future)
(done, not_done) = concurrent.futures.wait(
real_futures.append(x.wrapped_future)
(done, not_done) = concurrent.futures.wait(
@@
-73,9
+73,7
@@
def wait_all(
if not f.cancelled():
exception = f.exception()
if exception is not None:
if not f.cancelled():
exception = f.exception()
if exception is not None:
- logger.warning(
- f'Future {id(f)} raised an unhandled exception and exited.'
- )
+ logger.warning('Future 0x%x raised an unhandled exception and exited.', id(f))
logger.exception(exception)
raise exception
assert len(done) == len(real_futures)
logger.exception(exception)
raise exception
assert len(done) == len(real_futures)
@@
-91,7
+89,7
@@
class SmartFuture(DeferredOperand):
"""
def __init__(self, wrapped_future: fut.Future) -> None:
"""
def __init__(self, wrapped_future: fut.Future) -> None:
- assert
type(wrapped_future) == fut.Future
+ assert
isinstance(wrapped_future, fut.Future)
self.wrapped_future = wrapped_future
self.id = id_generator.get("smart_future_id")
self.wrapped_future = wrapped_future
self.id = id_generator.get("smart_future_id")
@@
-104,5
+102,5
@@
class SmartFuture(DeferredOperand):
# You shouldn't have to call this; instead, have a look at defining a
# method on DeferredOperand base class.
@overrides
# You shouldn't have to call this; instead, have a look at defining a
# method on DeferredOperand base class.
@overrides
- def _resolve(self,
*,
timeout=None) -> T:
+ def _resolve(self, timeout=None) -> T:
return self.wrapped_future.result(timeout)
return self.wrapped_future.result(timeout)