server/main.c

   1 /*
   2  * Server main function
   3  *
   4  * Copyright (C) 1998 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include <ctype.h>
   9 #include <fcntl.h>
  10 #include <signal.h>
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <sys/time.h>
  14 #include <unistd.h>
  15
  16 #include "object.h"
  17 #include "thread.h"
  18 #include "request.h"
  19
  20 /* command-line options */
  21 int debug_level = 0;
  22 int persistent_server = 0;
  23
  24 /* parse-line args */
  25 /* FIXME: should probably use getopt, and add a help option */
  26 static void parse_args( int argc, char *argv[] )
  27 {
  28     int i;
  29     for (i = 1; i < argc; i++)
  30     {
  31         if (argv[i][0] == '-')
  32         {
  33             switch(argv[i][1])
  34             {
  35             case 'd':
  36                 if (isdigit(argv[i][2])) debug_level = atoi( argv[i] + 2 );
  37                 else debug_level++;
  38                 break;
  39             case 'p':
  40                 persistent_server = 1;
  41                 break;
  42             default:
  43                 fprintf( stderr, "Unknown option '%s'\n", argv[i] );
  44                 exit(1);
  45             }
  46         }
  47         else
  48         {
  49             fprintf( stderr, "Unknown argument '%s'\n", argv[i] );
  50             exit(1);
  51         }
  52     }
  53 }
  54
  55 static void sigterm_handler()
  56 {
  57     exit(1);  /* make sure atexit functions get called */
  58 }
  59
  60 /* initialize signal handling */
  61 static void signal_init(void)
  62 {
  63     if (!debug_level)
  64     {
  65         switch(fork())
  66         {
  67         case -1:
  68             break;
  69         case 0:
  70             setsid();
  71             break;
  72         default:
  73             exit(0);
  74         }
  75     }
  76     signal( SIGPIPE, SIG_IGN );
  77     signal( SIGHUP, sigterm_handler );
  78     signal( SIGINT, sigterm_handler );
  79     signal( SIGQUIT, sigterm_handler );
  80     signal( SIGTERM, sigterm_handler );
  81     signal( SIGABRT, sigterm_handler );
  82 }
  83
  84 int main( int argc, char *argv[] )
  85 {
  86     parse_args( argc, argv );
  87     signal_init();
  88     open_master_socket();
  89
  90     if (debug_level) fprintf( stderr, "Server: starting (pid=%ld)\n", (long) getpid() );
  91     select_loop();
  92     if (debug_level) fprintf( stderr, "Server: exiting (pid=%ld)\n", (long) getpid() );
  93
  94 #ifdef DEBUG_OBJECTS
  95     close_registry();
  96     close_atom_table();
  97     dump_objects();  /* dump any remaining objects */
  98 #endif
  99     exit(0);
 100 }