fix pooltimeout

Author: valsteen

httpcore/_async/connection_pool.py

@@ -5,9 +5,14 @@
 
 from .._backends.auto import AutoBackend
 from .._backends.base import SOCKET_OPTION, AsyncNetworkBackend
-from .._exceptions import ConnectionNotAvailable, UnsupportedProtocol
+from .._exceptions import ConnectionNotAvailable, PoolTimeout, UnsupportedProtocol
 from .._models import Origin, Request, Response
-from .._synchronization import AsyncEvent, AsyncLock, AsyncShieldCancellation
+from .._synchronization import (
+    AsyncEvent,
+    AsyncLock,
+    AsyncShieldCancellation,
+    sync_current_time,
+)
 from .connection import AsyncHTTPConnection
 from .interfaces import AsyncConnectionInterface, AsyncRequestInterface
 
@@ -220,15 +225,20 @@ async def handle_async_request(self, request: Request) -> Response:
             )
 
         status = RequestStatus(request)
+        timeouts = request.extensions.get("timeout", {})
+        timeout = timeouts.get("pool", None)
+
+        if timeout is not None:
+            deadline = sync_current_time() + timeout
+        else:
+            deadline = float("inf")
 
         async with self._pool_lock:
             self._requests.append(status)
             await self._close_expired_connections()
             await self._attempt_to_acquire_connection(status)
 
         while True:
-            timeouts = request.extensions.get("timeout", {})
-            timeout = timeouts.get("pool", None)
             try:
                 connection = await status.wait_for_connection(timeout=timeout)
             except BaseException as exc:
@@ -263,6 +273,10 @@ async def handle_async_request(self, request: Request) -> Response:
             else:
                 break
 
+            timeout = deadline - sync_current_time()
+            if timeout < 0:
+                raise PoolTimeout
+
         # When we return the response, we wrap the stream in a special class
         # that handles notifying the connection pool once the response
         # has been released.

httpcore/_sync/connection_pool.py

@@ -5,9 +5,14 @@
 
 from .._backends.sync import SyncBackend
 from .._backends.base import SOCKET_OPTION, NetworkBackend
-from .._exceptions import ConnectionNotAvailable, UnsupportedProtocol
+from .._exceptions import ConnectionNotAvailable, PoolTimeout, UnsupportedProtocol
 from .._models import Origin, Request, Response
-from .._synchronization import Event, Lock, ShieldCancellation
+from .._synchronization import (
+    Event,
+    Lock,
+    ShieldCancellation,
+    sync_current_time,
+)
 from .connection import HTTPConnection
 from .interfaces import ConnectionInterface, RequestInterface
 
@@ -220,15 +225,20 @@ def handle_request(self, request: Request) -> Response:
             )
 
         status = RequestStatus(request)
+        timeouts = request.extensions.get("timeout", {})
+        timeout = timeouts.get("pool", None)
+
+        if timeout is not None:
+            deadline = sync_current_time() + timeout
+        else:
+            deadline = float("inf")
 
         with self._pool_lock:
             self._requests.append(status)
             self._close_expired_connections()
             self._attempt_to_acquire_connection(status)
 
         while True:
-            timeouts = request.extensions.get("timeout", {})
-            timeout = timeouts.get("pool", None)
             try:
                 connection = status.wait_for_connection(timeout=timeout)
             except BaseException as exc:
@@ -263,6 +273,10 @@ def handle_request(self, request: Request) -> Response:
             else:
                 break
 
+            timeout = deadline - sync_current_time()
+            if timeout < 0:
+                raise PoolTimeout
+
         # When we return the response, we wrap the stream in a special class
         # that handles notifying the connection pool once the response
         # has been released.

httpcore/_synchronization.py

@@ -1,6 +1,7 @@
 import threading
+import time
 from types import TracebackType
-from typing import Optional, Type
+from typing import Callable, Optional, Type, Union
 
 from ._exceptions import ExceptionMapping, PoolTimeout, map_exceptions
 
@@ -291,3 +292,30 @@ def __exit__(
         traceback: Optional[TracebackType] = None,
     ) -> None:
         pass
+
+
+_current_time_implementation: Union[None, Callable[[], float]] = None
+
+
+def async_current_time() -> float:
+    global _current_time_implementation
+
+    if not _current_time_implementation:  # pragma: nocover
+        if current_async_library() == "trio":
+            if trio is None:
+                raise RuntimeError(
+                    "Running with trio requires installation of 'httpcore[trio]'."
+                )
+            _current_time_implementation = trio.current_time
+        else:
+            if anyio is None:
+                raise RuntimeError(
+                    "Running with asyncio requires installation of 'httpcore[asyncio]'."
+                )
+            _current_time_implementation = anyio.current_time
+
+    return _current_time_implementation()
+
+
+def sync_current_time() -> float:
+    return time.monotonic()