core/main.c

   1 #include "../lib/sstring.h"
   2 #include "events.h"
   3 #include "schedule.h"
   4 #include "hooks.h"
   5 #include "modules.h"
   6 #include "config.h"
   7 #include "error.h"
   8 #include "nsmalloc.h"
   9
  10 #include <stdlib.h>
  11 #include <stdio.h>
  12 #include <time.h>
  13 #include <sys/time.h>
  14 #include <signal.h>
  15
  16 int newserv_shutdown_pending;
  17 int newserv_sigusr1_pending;
  18
  19 void initseed();
  20 void init_logfile();
  21 void siginthandler(int sig);
  22 void sigusr1handler(int sig);
  23 void sigsegvhandler(int sig);
  24 void handlecore(void);
  25
  26 int main(int argc, char **argv) {
  27   initseed();
  28   inithooks();
  29   inithandlers();
  30   initschedule();
  31
  32   init_logfile();
  33
  34   initsstring();
  35
  36   if (argc>1) {
  37     initconfig(argv[1]);
  38   } else {
  39     initconfig("newserv.conf");
  40   }
  41
  42   /* Loading the modules will bring in the bulk of the code */
  43   initmodules();
  44   signal(SIGINT, siginthandler);
  45   signal(SIGUSR1, sigusr1handler);
  46   signal(SIGSEGV, sigsegvhandler);
  47
  48   /* Main loop */
  49   for(;;) {
  50     handleevents(10);
  51     doscheduledevents(time(NULL));
  52     if (newserv_shutdown_pending) {
  53       newserv_shutdown();
  54       break;
  55     }
  56
  57     if (newserv_sigusr1_pending) {
  58       signal(SIGUSR1, sigusr1handler);
  59       triggerhook(HOOK_CORE_SIGUSR1, NULL);
  60       newserv_sigusr1_pending=0;
  61     }
  62   }
  63
  64   nsexit();
  65
  66   freeconfig();
  67   finisstring();
  68 }
  69
  70 /*
  71  * seed the pseudo-random number generator, rand()
  72  */
  73 void initseed() {
  74   struct timeval t;
  75
  76   gettimeofday(&t, NULL);
  77   srand(t.tv_usec);
  78 }
  79
  80 void siginthandler(int sig) {
  81   newserv_shutdown_pending = 1;
  82 }
  83
  84 void sigusr1handler(int sig) {
  85   newserv_sigusr1_pending = 1;
  86 }
  87
  88 void sigsegvhandler(int sig) {
  89   handlecore();
  90 }
  91