Function sigShutdownHandler

src/server.cpp:6786–6819

}

static void sigShutdownHandler(int sig) {
    const 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 ((g_pserver->shutdown_asap || g_pserver->soft_shutdown) && sig == SIGINT) {
        serverLogFromHandler(LL_WARNING, "You insist... exiting now.");
        rdbRemoveTempFile(g_pserver->rdbThreadVars.tmpfileNum, 1);
        g_pserver->garbageCollector.shutdown();
        _Exit(1); /* Exit with an error since this was not a clean shutdown. */
    } else if (g_pserver->loading) {
        serverLogFromHandler(LL_WARNING, "Received shutdown signal during loading, exiting now.");
        _Exit(0);   // calling dtors is undesirable, exit immediately
    }

    serverLogFromHandler(LL_WARNING, msg);
    if (g_pserver->config_soft_shutdown)
        g_pserver->soft_shutdown = true;
    else
        g_pserver->shutdown_asap = 1;
}

void setupSignalHandlers(void) {
    struct sigaction act;