Connection not timing out

[Azmisov]

Describe the bug

I have a request which is hanging and never times out. It is occurring during connection to an IP which never responds; e.g. ping ip will hang with 100% packet loss. I am able to reproduce it 100% in a larger codebase running in a Docker instance. I'm not able to reproduce it running locally, so I'll play around some more to see if I can put together a minimal example.

To Reproduce

async def test(ip):
    addr_infos = [(
        AddressFamily.AF_INET,
        SocketKind.SOCK_STREAM,
        6, '', (ip, 80)
    )]
    loop = asyncio.get_running_loop()
    print("Loop:", loop)
    try:
        async with ceil_timeout(1, ceil_threshold=5):
            sock = await aiohappyeyeballs.start_connection(
                addr_infos=addr_infos,
                local_addr_infos=None,
                happy_eyeballs_delay=0.25,
                interleave=None,
                loop=loop,
            )
            print("Connected:", sock)
    except Exception as e:
        print("Exception:", type(e))

Expected behavior

Should throw an exception

Logs/tracebacks

Loop: <_UnixSelectorEventLoop running=True closed=False debug=False>

Python Version

3.12

aiohttp Version

3.10.10

multidict Version

6.1.0

propcache Version

0.2.0

yarl Version

1.17.0

OS

Debian bookworm

Related component

Client

Additional context

No response

Code of Conduct

• I agree to follow the aio-libs Code of Conduct

[ljluestc]

async def test(ip):
    addr_infos = [(
        AddressFamily.AF_INET,
        SocketKind.SOCK_STREAM,
        6, '', (ip, 80)
    )]
    loop = asyncio.get_running_loop()
    print("Loop:", loop)
    try:
        sock = await asyncio.wait_for(
            aiohappyeyeballs.start_connection(
                addr_infos=addr_infos,
                local_addr_infos=None,
                happy_eyeballs_delay=0.25,
                interleave=None,
                loop=loop,
            ),
            timeout=1
        )
        print("Connected:", sock)
    except asyncio.TimeoutError:
        print("Timeout")
    except Exception as e:
        print("Exception:", type(e))
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​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​

[bdraco]

This code times out for me

bdraco@MacBook-Pro-37 aiohttp % cat run.py
import asyncio
import aiohappyeyeballs
from socket import AddressFamily, SocketKind


async def test(ip):
    addr_infos = [(AddressFamily.AF_INET, SocketKind.SOCK_STREAM, 6, "", (ip, 80))]
    loop = asyncio.get_running_loop()
    print("Loop:", loop)
    try:
        sock = await asyncio.wait_for(
            aiohappyeyeballs.start_connection(
                addr_infos=addr_infos,
                local_addr_infos=None,
                happy_eyeballs_delay=0.25,
                interleave=None,
                loop=loop,
            ),
            timeout=1,
        )
        print("Connected:", sock)
    except asyncio.TimeoutError:
        print("Timeout")
    except Exception as e:
        print("Exception:", e, type(e))


asyncio.run(test("8.8.8.8"))
bdraco@MacBook-Pro-37 aiohttp % python3 run.py    
Loop: <_UnixSelectorEventLoop running=True closed=False debug=False>
Timeout