1 files changed, 137 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/hatchet_sdk/utils/aio_utils.py b/.venv/lib/python3.12/site-packages/hatchet_sdk/utils/aio_utils.py
new file mode 100644
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+++ b/.venv/lib/python3.12/site-packages/hatchet_sdk/utils/aio_utils.py
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+import asyncio
+import inspect
+from concurrent.futures import Executor
+from functools import partial, wraps
+from threading import Thread
+from typing import Any
+
+
+## TODO: Stricter typing here
+def sync_to_async(func: Any) -> Any:
+    """
+    A decorator to run a synchronous function or coroutine in an asynchronous context with added
+    asyncio loop safety.
+
+    This decorator allows you to safely call synchronous functions or coroutines from an
+    asynchronous function by running them in an executor.
+
+    Args:
+        func (callable): The synchronous function or coroutine to be run asynchronously.
+
+    Returns:
+        callable: An asynchronous wrapper function that runs the given function in an executor.
+
+    Example:
+        @sync_to_async
+        def sync_function(x, y):
+            return x + y
+
+        @sync_to_async
+        async def async_function(x, y):
+            return x + y
+
+
+        def undecorated_function(x, y):
+            return x + y
+
+        async def main():
+            result1 = await sync_function(1, 2)
+            result2 = await async_function(3, 4)
+            result3 = await sync_to_async(undecorated_function)(5, 6)
+            print(result1, result2, result3)
+
+        asyncio.run(main())
+    """
+
+    ## TODO: Stricter typing here
+    @wraps(func)
+    async def run(
+        *args: Any,
+        loop: asyncio.AbstractEventLoop | None = None,
+        executor: Executor | None = None,
+        **kwargs: Any
+    ) -> Any:
+        """
+        The asynchronous wrapper function that runs the given function in an executor.
+
+        Args:
+            *args: Positional arguments to pass to the function.
+            loop (asyncio.AbstractEventLoop, optional): The event loop to use. If None, the current running loop is used.
+            executor (concurrent.futures.Executor, optional): The executor to use. If None, the default executor is used.
+            **kwargs: Keyword arguments to pass to the function.
+
+        Returns:
+            The result of the function call.
+        """
+        if loop is None:
+            loop = asyncio.get_running_loop()
+
+        if inspect.iscoroutinefunction(func):
+            # Wrap the coroutine to run it in an executor
+            async def wrapper() -> Any:
+                return await func(*args, **kwargs)
+
+            pfunc = partial(asyncio.run, wrapper())
+            return await loop.run_in_executor(executor, pfunc)
+        else:
+            # Run the synchronous function in an executor
+            pfunc = partial(func, *args, **kwargs)
+            return await loop.run_in_executor(executor, pfunc)
+
+    return run
+
+
+class EventLoopThread:
+    """A class that manages an asyncio event loop running in a separate thread."""
+
+    def __init__(self) -> None:
+        """
+        Initializes the EventLoopThread by creating an event loop
+        and setting up a thread to run the loop.
+        """
+        self.loop = asyncio.new_event_loop()
+        self.thread = Thread(target=self.run_loop_in_thread, args=(self.loop,))
+
+    def __enter__(self, *a, **kw) -> asyncio.AbstractEventLoop:
+        """
+        Starts the thread running the event loop when entering the context.
+
+        Returns:
+            asyncio.AbstractEventLoop: The event loop running in the separate thread.
+        """
+        self.thread.start()
+        return self.loop
+
+    def __exit__(self, *a, **kw) -> None:
+        """
+        Stops the event loop and joins the thread when exiting the context.
+        """
+        self.loop.call_soon_threadsafe(self.loop.stop)
+        self.thread.join()
+
+    def run_loop_in_thread(self, loop: asyncio.AbstractEventLoop) -> None:
+        """
+        Sets the event loop for the current thread and runs it forever.
+
+        Args:
+            loop (asyncio.AbstractEventLoop): The event loop to run.
+        """
+        asyncio.set_event_loop(loop)
+        loop.run_forever()
+
+
+def get_active_event_loop() -> asyncio.AbstractEventLoop | None:
+    """
+    Get the active event loop.
+
+    Returns:
+        asyncio.AbstractEventLoop: The active event loop, or None if there is no active
+        event loop in the current thread.
+    """
+    try:
+        return asyncio.get_event_loop()
+    except RuntimeError as e:
+        if str(e).startswith("There is no current event loop in thread"):
+            return None
+        else:
+            raise e