Function sigShutdownHandler

app/redis-6.2.6/src/server.c:5753–5782

}

static void sigShutdownHandler(int sig) {
    char *msg;

    switch (sig) {
    case SIGINT:
        msg = "Received SIGINT scheduling shutdown...";
        break;
    case SIGTERM:
        msg = "Received SIGTERM scheduling shutdown...";
        break;
    default:
        msg = "Received shutdown signal, scheduling shutdown...";
    };

    /* SIGINT is often delivered via Ctrl+C in an interactive session.
     * If we receive the signal the second time, we interpret this as
     * the user really wanting to quit ASAP without waiting to persist
     * on disk. */
    if (server.shutdown_asap && sig == SIGINT) {
        serverLogFromHandler(LL_WARNING, "You insist... exiting now.");
        rdbRemoveTempFile(getpid(), 1);
        exit(1); /* Exit with an error since this was not a clean shutdown. */
    } else if (server.loading) {
        serverLogFromHandler(LL_WARNING, "Received shutdown signal during loading, exiting now.");
        exit(0);
    }

    serverLogFromHandler(LL_WARNING, msg);
    server.shutdown_asap = 1;
}

void setupSignalHandlers(void) {
    struct sigaction act;