gradio-cli accept SIGINT only once, leaving the subprocess running

[Tiger3018]

Describe the bug

When using gradio-cli, the SIGINT(2) or Ctrl+C passed to the gradio-cli will call self.server.close() and terminate the cli immediately.

However, there are circumstances when the launch() can't finish the jobs of thread join, such as #7051(thread.join()) and http_server.watch_thread.join(), or run into another block_thread() when debug=True.

When loaded with models, silent subprocess running will cause unnecessary RAM usage.

Have you searched existing issues? 🔎

• I have searched and found no existing issues

Reproduction

import gradio as gr

def transcribe(stream, new_audio_chunk):
    return "", None

demo = gr.Interface(
    transcribe,
    ["state", gr.Audio(sources=["microphone"], streaming=True, )]
,
    ["state", "text"],
    live=True,
)

demo.launch(share=False, debug=True)

gradio app.py

Screenshot

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Logs

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System Info

------------------------------
Operating System: Darwin
gradio version: 4.27.0
gradio_client version: 0.15.1
------------------------------------------------
gradio dependencies in your environment:
aiofiles: 23.2.1
altair: 5.3.0
fastapi: 0.110.2
ffmpy: 0.3.2
gradio-client==0.15.1 is not installed.
httpx: 0.27.0
huggingface-hub: 0.22.1
importlib-resources: 6.4.0
jinja2: 3.1.3
markupsafe: 2.1.3
matplotlib: 3.8.0
numpy: 1.26.4
orjson: 3.10.1
packaging: 23.2
pandas: 2.1.4
pillow: 10.2.0
pydantic: 2.5.3
pydub: 0.25.1
python-multipart: 0.0.9
pyyaml: 6.0.1
ruff: 0.4.0
semantic-version: 2.10.0
tomlkit==0.12.0 is not installed.
typer: 0.12.3
typing-extensions: 4.9.0
urllib3: 2.0.7
uvicorn: 0.29.0
authlib; extra == 'oauth' is not installed.
itsdangerous; extra == 'oauth' is not installed.
gradio_client dependencies in your environment:
fsspec: 2023.10.0
httpx: 0.27.0
huggingface-hub: 0.22.1
packaging: 23.2
typing-extensions: 4.9.0
websockets: 11.0.3

Severity

I can work around it