Unexpected behaviour of process interrupting when using chdb

[xantinium]

Hi there!

Encountered an issue: when using chdb-go, the process cannot terminate successfully upon receiving a stop signal. It appears that the library intercepts the signal, preventing the Go program from receiving it.

Steps to reproduce:

1. Initialize a session from chdb-go
2. Set up a listener for the SIGINT signal
3. Run the application
4. Send a stop signal (Ctrl+C)

Expected behavior: the program receives the stop signal and terminates successfully.
Actual behavior: the program hangs / the program terminates prematurely without receiving the stop signal.

Minimal repro: https://github.com/xantinium/chdb-stop-sig

[wudidapaopao]

Hi @xantinium, thank you for your report. The current implementation of libchdb.so intercepts SIGINT and SIGQUIT signals by default, which can interfere with signal handling in Go programs. This behavior will be addressed in a future update to libchdb.so.
see chdb-io/chdb#321