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llama : fix ctrl+c handler #11731

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llama : fix ctrl+c handler #11731

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35 changes: 18 additions & 17 deletions examples/server/server.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3388,6 +3388,24 @@ int main(int argc, char ** argv) {
// struct that contains llama context and inference
server_context ctx_server;

shutdown_handler = [&](int) {
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I don't get why this whole code block must be this higher up. Can't it be move to just right before ctx_server.queue_tasks.start_loop(); ?

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Hi @ngxson , I think yes.

ctx_server.queue_tasks.terminate();
};

#if defined (__unix__) || (defined (__APPLE__) && defined (__MACH__))
struct sigaction sigint_action;
sigint_action.sa_handler = signal_handler;
sigemptyset (&sigint_action.sa_mask);
sigint_action.sa_flags = 0;
sigaction(SIGINT, &sigint_action, NULL);
sigaction(SIGTERM, &sigint_action, NULL);
#elif defined (_WIN32)
auto console_ctrl_handler = +[](DWORD ctrl_type) -> BOOL {
return (ctrl_type == CTRL_C_EVENT) ? (signal_handler(SIGINT), true) : false;
};
SetConsoleCtrlHandler(reinterpret_cast<PHANDLER_ROUTINE>(console_ctrl_handler), true);
#endif

llama_backend_init();
llama_numa_init(params.numa);

Expand Down Expand Up @@ -4484,27 +4502,10 @@ int main(int argc, char ** argv) {
ctx_server.update_slots();
});

shutdown_handler = [&](int) {
ctx_server.queue_tasks.terminate();
};

LOG_INF("%s: server is listening on http://%s:%d - starting the main loop\n", __func__, params.hostname.c_str(), params.port);

ctx_server.queue_tasks.start_loop();

#if defined (__unix__) || (defined (__APPLE__) && defined (__MACH__))
struct sigaction sigint_action;
sigint_action.sa_handler = signal_handler;
sigemptyset (&sigint_action.sa_mask);
sigint_action.sa_flags = 0;
sigaction(SIGINT, &sigint_action, NULL);
sigaction(SIGTERM, &sigint_action, NULL);
#elif defined (_WIN32)
auto console_ctrl_handler = +[](DWORD ctrl_type) -> BOOL {
return (ctrl_type == CTRL_C_EVENT) ? (signal_handler(SIGINT), true) : false;
};
SetConsoleCtrlHandler(reinterpret_cast<PHANDLER_ROUTINE>(console_ctrl_handler), true);
#endif

clean_up();
t.join();
Expand Down
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