mirror of
https://github.com/pacnpal/thrillwiki_django_no_react.git
synced 2025-12-20 23:51:09 -05:00
okay fine
This commit is contained in:
70
.venv/lib/python3.12/site-packages/redis/retry.py
Normal file
70
.venv/lib/python3.12/site-packages/redis/retry.py
Normal file
@@ -0,0 +1,70 @@
|
||||
import socket
|
||||
from time import sleep
|
||||
from typing import TYPE_CHECKING, Any, Callable, Iterable, Tuple, Type, TypeVar
|
||||
|
||||
from redis.exceptions import ConnectionError, TimeoutError
|
||||
|
||||
T = TypeVar("T")
|
||||
|
||||
if TYPE_CHECKING:
|
||||
from redis.backoff import AbstractBackoff
|
||||
|
||||
|
||||
class Retry:
|
||||
"""Retry a specific number of times after a failure"""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
backoff: "AbstractBackoff",
|
||||
retries: int,
|
||||
supported_errors: Tuple[Type[Exception], ...] = (
|
||||
ConnectionError,
|
||||
TimeoutError,
|
||||
socket.timeout,
|
||||
),
|
||||
):
|
||||
"""
|
||||
Initialize a `Retry` object with a `Backoff` object
|
||||
that retries a maximum of `retries` times.
|
||||
`retries` can be negative to retry forever.
|
||||
You can specify the types of supported errors which trigger
|
||||
a retry with the `supported_errors` parameter.
|
||||
"""
|
||||
self._backoff = backoff
|
||||
self._retries = retries
|
||||
self._supported_errors = supported_errors
|
||||
|
||||
def update_supported_errors(
|
||||
self, specified_errors: Iterable[Type[Exception]]
|
||||
) -> None:
|
||||
"""
|
||||
Updates the supported errors with the specified error types
|
||||
"""
|
||||
self._supported_errors = tuple(
|
||||
set(self._supported_errors + tuple(specified_errors))
|
||||
)
|
||||
|
||||
def call_with_retry(
|
||||
self,
|
||||
do: Callable[[], T],
|
||||
fail: Callable[[Exception], Any],
|
||||
) -> T:
|
||||
"""
|
||||
Execute an operation that might fail and returns its result, or
|
||||
raise the exception that was thrown depending on the `Backoff` object.
|
||||
`do`: the operation to call. Expects no argument.
|
||||
`fail`: the failure handler, expects the last error that was thrown
|
||||
"""
|
||||
self._backoff.reset()
|
||||
failures = 0
|
||||
while True:
|
||||
try:
|
||||
return do()
|
||||
except self._supported_errors as error:
|
||||
failures += 1
|
||||
fail(error)
|
||||
if self._retries >= 0 and failures > self._retries:
|
||||
raise error
|
||||
backoff = self._backoff.compute(failures)
|
||||
if backoff > 0:
|
||||
sleep(backoff)
|
||||
Reference in New Issue
Block a user