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 static void (*oldsegv)(int);
  27
  28 int main(int argc, char **argv) {
  29   initseed();
  30   inithooks();
  31   inithandlers();
  32   initschedule();
  33
  34   init_logfile();
  35
  36   initsstring();
  37
  38   if (argc>1) {
  39     initconfig(argv[1]);
  40   } else {
  41     initconfig("newserv.conf");
  42   }
  43
  44   /* Loading the modules will bring in the bulk of the code */
  45   initmodules();
  46   signal(SIGINT, siginthandler);
  47   signal(SIGUSR1, sigusr1handler);
  48   oldsegv = signal(SIGSEGV, sigsegvhandler);
  49
  50   /* Main loop */
  51   for(;;) {
  52     handleevents(10);
  53     doscheduledevents(time(NULL));
  54     if (newserv_shutdown_pending) {
  55       newserv_shutdown();
  56       break;
  57     }
  58
  59     if (newserv_sigusr1_pending) {
  60       signal(SIGUSR1, sigusr1handler);
  61       triggerhook(HOOK_CORE_SIGUSR1, NULL);
  62       newserv_sigusr1_pending=0;
  63     }
  64   }
  65
  66   freeconfig();
  67   finisstring();
  68
  69   nsexit();
  70 }
  71
  72 /*
  73  * seed the pseudo-random number generator, rand()
  74  */
  75 void initseed() {
  76   struct timeval t;
  77
  78   gettimeofday(&t, NULL);
  79   srand(t.tv_usec);
  80 }
  81
  82 void siginthandler(int sig) {
  83   newserv_shutdown_pending = 1;
  84 }
  85
  86 void sigusr1handler(int sig) {
  87   newserv_sigusr1_pending = 1;
  88 }
  89
  90 void sigsegvhandler(int sig) {
  91   handlecore();
  92
  93   oldsegv(sig);
  94 }
  95