server : hit Ctrl+C twice to exit (#5734)

* server: twice ctrl+C to exit

* std::atomic_flag

* sigint: message

* sigint: stderr

* Update examples/server/server.cpp

Co-authored-by: Jared Van Bortel <cebtenzzre@gmail.com>

---------

Co-authored-by: Jared Van Bortel <cebtenzzre@gmail.com>
This commit is contained in:
Xuan Son Nguyen 2024-02-28 09:55:37 +01:00 committed by GitHub
parent adcb12a9ba
commit a693bea1e6
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@ -2772,7 +2772,16 @@ static void append_to_generated_text_from_generated_token_probs(llama_server_con
}
std::function<void(int)> shutdown_handler;
inline void signal_handler(int signal) { shutdown_handler(signal); }
std::atomic_flag is_terminating = ATOMIC_FLAG_INIT;
inline void signal_handler(int signal) {
if (is_terminating.test_and_set()) {
// in case it hangs, we can force terminate the server by hitting Ctrl+C twice
// this is for better developer experience, we can remove when the server is stable enough
fprintf(stderr, "Received second interrupt, terminating immediately.\n");
exit(1);
}
shutdown_handler(signal);
}
int main(int argc, char **argv)
{