Beispiel #1
0
/* _lo_signal_done():
*/
static void
_lo_signal_done()
{
  // signal(SIGINT, SIG_IGN);
  signal(SIGTERM, SIG_IGN);
  signal(SIGVTALRM, SIG_IGN);

  stackoverflow_deinstall_handler();
  {
    struct itimerval itm_u;

    timerclear(&itm_u.it_interval);
    timerclear(&itm_u.it_value);

    setitimer(ITIMER_VIRTUAL, &itm_u, 0);
  }
  u2_unix_ef_move();
}
c3_i
main(c3_i   argc,
     c3_c** argv)
{
  // set both logging systems to unit-ed
  //
  u2K->inited_t = c3_false;

  c3_w kno_w;

  _MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
  _MM_SET_DENORMALS_ZERO_MODE(_MM_DENORMALS_ZERO_ON);

  //  Parse options.
  //
  if ( u2_no == _main_getopt(argc, argv) ) {
    u2_ve_usage(argc, argv);
    return 1;
  }


  u2_ve_sysopt();

  printf("~\n");
  printf("welcome.\n");
  printf("vere: urbit home is %s\n", u2_Host.cpu_c);
  printf("vere: hostname is %s\n", u2_Host.ops_u.nam_c);

  if ( u2_yes == u2_Host.ops_u.dem && u2_no == u2_Host.ops_u.bat ) {
    printf("Starting daemon\n");
  }

  //  Seed prng. Don't panic -- just for fuzz testing and election timeouts.
  //
  srand(getpid());

  //  Instantiate process globals.
  {
    u2_wr_check_init(u2_Host.cpu_c);
    u2_Host.xit_i = 0;

    if ( (u2_no == u2_Host.ops_u.nuu) &&
          (u2_yes == u2_loom_load()) )
    {
      u2_Host.wir_r = u2_ray_of(0, 0);
      u2_Wire = u2_Host.wir_r;

      u2_Host.arv_u = u2_Arv;

      u2_Arv->ova.egg_u = u2_Arv->ova.geg_u = 0;

      u2_lo_grab("init", u2_none);

      //  Horrible ancient stuff.
      //
      kno_w = u2_Host.arv_u->kno_w;
      u2_Host.kno_w = kno_w;

      u2_ho_push();
    }
    else {
      u2_loom_boot();
      u2_Host.wir_r = u2_wr_init(c3__rock, u2_ray_of(0, 0), u2_ray_of(1, 0));
      u2_Wire = u2_Host.wir_r;

      u2_Host.arv_u = u2_Arv;
    }
  }

  //  If we have not loaded from checkpoint, build kernel.
  //
  if ( 0 != u2_Host.arv_u->ent_d ) {
    u2_reck_time(u2_Host.arv_u);
    u2_reck_numb(u2_Host.arv_u);
    {
      c3_c* dyt_c = u2_cr_string(u2_Host.arv_u->wen);

      printf("time: %s\n", dyt_c);
      free(dyt_c);
    }
  }
  else {
    //  Set outside bail trap.  Should not be used, but you never know...
    //
    if ( 0 != u2_cm_trap() ) {
      u2_ve_panic(argc, argv);
    }
    else {
      //  Set boot and goal stages.
      {
        if ( (0 == u2_Host.ops_u.kno_w) || (u2_Host.ops_u.kno_w > 255) ) {
          kno_w = DefaultKernel;
        } else {
          kno_w = u2_Host.ops_u.kno_w;
        }
      }

      //  Load the system.
      //
      {
        u2_Host.kno_w = u2_Host.ops_u.kno_w;

        u2_reck_boot(u2_Host.arv_u);
      }
      u2_cm_done();
    }
  }

  //  Install signal handlers and set buffers.
  //
  //  Note that we use the sigmask-restoring variant.  Essentially, when
  //  we get a signal, we force the system back into the just-booted state.
  //  If anything goes wrong during boot (above), it's curtains.
  {
    if ( 0 != sigsetjmp(Signal_buf, 1) ) {
      switch ( Sigcause ) {
        case sig_overflow: printf("[stack overflow]\r\n"); break;
        case sig_interrupt: printf("[interrupt]\r\n"); break;
        default: printf("[signal error!]\r\n"); break;
      }
      Sigcause = sig_none;

      signal(SIGINT, SIG_DFL);
      stackoverflow_deinstall_handler();

      //  Print the trace, do a GC, etc.
      //
      //  This is half-assed at present, so we exit.
      //
      u2_lo_sway(0, u2k(u2_wire_tax(u2_Wire)));

      u2_lo_bail(u2_Host.arv_u);

      exit(1);
    }
#if 1
    if ( -1 == stackoverflow_install_handler
        (overflow_handler, Sigstk, SIGSTKSZ) )
    {
      fprintf(stderr, "overflow_handler: install failed\n");
      exit(1);
    }
    signal(SIGINT, interrupt_handler);
    signal(SIGIO, SIG_IGN);
#endif
  }

  u2_lo_grab("main", u2_none);

  // booted in admin mode: do a task, then exit
  // booted in user mode: do command loop

  if (u2_Host.ops_u.adm_c != 0) {
    if      (strcmp(u2_Host.ops_u.adm_c, "edmp") ==0) { u2_egz_admin_dump_egz(); }
    else if (strcmp(u2_Host.ops_u.adm_c, "etok") ==0) { u2_kafka_admin_egz_to_kafka(); }
    else if (strcmp(u2_Host.ops_u.adm_c, "ktoe") ==0) { u2_kafka_admin_kafka_to_egz(); }
    else if (strcmp(u2_Host.ops_u.adm_c, "kcnf") ==0) { u2_lo_loop(); } // do it in the app
    else                                              { fprintf(stderr, "unsupported admin mode command %s\n", u2_Host.ops_u.adm_c); exit(1); }
  } else {
    u2_lo_loop();
  }

  return 0;
}