none/tests/threaded-fork.c

   1 #include <stdlib.h>
   2 #include <sys/wait.h>
   3 #include <pthread.h>
   4 #include <sys/types.h>
   5 #include <unistd.h>
   6 #include <stdio.h>
   7 #include <signal.h>
   8
   9 static void *threadmain( void *dummy )
  10 {
  11         sleep( (unsigned long)dummy );
  12         return NULL;
  13 }
  14
  15 int main( int argc, char **argv )
  16 {
  17         int ctr;
  18         pid_t childpid;
  19         pthread_t childthread;
  20         void *res;
  21         int status;
  22
  23         pthread_create( &childthread, NULL, threadmain, (void *)2 );
  24
  25         childpid = fork();
  26         switch( childpid ) {
  27         case 0:
  28                 pthread_create( &childthread, NULL, threadmain, 0 );
  29                 pthread_join( childthread, &res );
  30                 exit(0);
  31                 break;
  32         case -1:
  33                 perror( "FAILED: fork failed\n" );
  34                 break;
  35         default:
  36                 break;
  37         }
  38
  39         pthread_join( childthread, &res );
  40         ctr = 0;
  41         while(waitpid(childpid, &status, 0) != childpid) {
  42                 sleep(1);
  43                 ctr++;
  44                 if (ctr >= 10) {
  45                   printf("FAILED - timeout waiting for child\n");
  46                   return 0;
  47                 }
  48         }
  49
  50         printf("PASS\n");
  51
  52         return 0;
  53 }
  54
  55