regenerate.c

   1 #include <unistd.h>
   2 #include "files.h"
   3 #include "log.h"
   4 #include "maps.h"
   5 #include "net.h"
   6 #include "params.h"
   7 #include "random.h"
   8 #include "shm.h"
   9 #include "trinity.h"
  10
  11 #if 0
  12 static void do_sso_sockets(void)
  13 {
  14         struct sockopt so = { 0, 0, 0, 0 };
  15         unsigned int i;
  16
  17         for (i = 0; i < nr_sockets; i++) {
  18                 int fd;
  19
  20                 fd = shm->sockets[i].fd;
  21                 sso_socket(&shm->sockets[i].triplet, &so, fd);
  22         }
  23 }
  24 #endif
  25
  26 void regenerate(void)
  27 {
  28         if (no_files == TRUE)   /* We don't regenerate sockets */
  29                 return;
  30
  31         /* we're about to exit. */
  32         if (shm->spawn_no_more)
  33                 return;
  34
  35         shm->regenerating = TRUE;
  36
  37         sleep(1);       /* give children time to finish with fds. */
  38
  39         shm->regenerate = 0;
  40
  41         output(0, "Regenerating random pages, fd's etc.\n");
  42
  43         regenerate_fds();
  44
  45         /* Do random setsockopts on all network sockets. */
  46         /* FIXME: Disabled for now.
  47          *
  48          * There's a problem if we have a child doing a read on a socket that blocks
  49          * (like some weirdo ax25 socket for eg). The setsockopt will block on it.
  50          *
  51          * I'm not sure what to do about this problem yet.
  52          * Maybe try waiting for nr_children to drop to zero when need_regenerate == 1 ?
  53          */
  54         //do_sso_sockets();
  55
  56         destroy_shared_mappings();
  57         setup_shared_mappings();
  58
  59         generate_random_page(page_rand);
  60
  61         shm->regenerating = FALSE;
  62 }