docker-python/patches/asynctio_unix_events.patch
2024-03-07 14:49:39 -05:00

17 lines
649 B
Diff

diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py
index f34a5b4b44..b1d0f1e61e 100644
--- a/Lib/asyncio/unix_events.py
+++ b/Lib/asyncio/unix_events.py
@@ -369,6 +369,11 @@ class _UnixSelectorEventLoop(selector_events.BaseSelectorEventLoop):
fut.set_result(total_sent)
return
+ # On 32-bit architectures truncate to 1GiB to avoid OverflowError,
+ # see bpo-38319.
+ if sys.maxsize < 2 ** 32:
+ blocksize = min(blocksize, 2 ** 30)
+
try:
sent = os.sendfile(fd, fileno, offset, blocksize)
except (BlockingIOError, InterruptedError):