File size: 2,098 Bytes
e3a3167 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | import threading
from collections.abc import Callable
from enum import Enum
from typing import Generic, TypeVar
from sensai.util.string import ToStringMixin
class TimeoutException(Exception):
def __init__(self, message: str, timeout: float) -> None:
super().__init__(message)
self.timeout = timeout
T = TypeVar("T")
class ExecutionResult(Generic[T], ToStringMixin):
class Status(Enum):
SUCCESS = "success"
TIMEOUT = "timeout"
EXCEPTION = "error"
def __init__(self) -> None:
self.result_value: T | None = None
self.status: ExecutionResult.Status | None = None
self.exception: Exception | None = None
def set_result_value(self, value: T) -> None:
self.result_value = value
self.status = ExecutionResult.Status.SUCCESS
def set_timed_out(self, exception: TimeoutException) -> None:
self.exception = exception
self.status = ExecutionResult.Status.TIMEOUT
def set_exception(self, exception: Exception) -> None:
self.exception = exception
self.status = ExecutionResult.Status.EXCEPTION
def execute_with_timeout(func: Callable[[], T], timeout: float, function_name: str) -> ExecutionResult[T]:
"""
Executes the given function with a timeout
:param func: the function to execute
:param timeout: the timeout in seconds
:param function_name: the name of the function (for error messages)
:returns: the execution result
"""
execution_result: ExecutionResult[T] = ExecutionResult()
def target() -> None:
try:
value = func()
execution_result.set_result_value(value)
except Exception as e:
execution_result.set_exception(e)
thread = threading.Thread(target=target, daemon=True)
thread.start()
thread.join(timeout=timeout)
if thread.is_alive():
timeout_exception = TimeoutException(f"Execution of '{function_name}' timed out after {timeout} seconds.", timeout)
execution_result.set_timed_out(timeout_exception)
return execution_result
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