nptl/tst-getpid1.c

   1 #include <sched.h>
   2 #include <signal.h>
   3 #include <string.h>
   4 #include <stdio.h>
   5 #include <unistd.h>
   6 #include <sys/types.h>
   7 #include <sys/wait.h>
   8
   9 #ifndef TEST_CLONE_FLAGS
  10 #define TEST_CLONE_FLAGS 0
  11 #endif
  12
  13 static int sig;
  14
  15 static int
  16 f (void *a)
  17 {
  18   puts ("in f");
  19   union sigval sival;
  20   sival.sival_int = getpid ();
  21   printf ("pid = %d\n", sival.sival_int);
  22   if (sigqueue (getppid (), sig, sival) != 0)
  23     return 1;
  24   return 0;
  25 }
  26
  27
  28 static int
  29 do_test (void)
  30 {
  31   int mypid = getpid ();
  32
  33   sig = SIGRTMIN;
  34   sigset_t ss;
  35   sigemptyset (&ss);
  36   sigaddset (&ss, sig);
  37   if (sigprocmask (SIG_BLOCK, &ss, NULL) != 0)
  38     {
  39       printf ("sigprocmask failed: %m\n");
  40       return 1;
  41     }
  42
  43 #ifdef __ia64__
  44   extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
  45                        size_t __child_stack_size, int __flags,
  46                        void *__arg, ...);
  47   char st[256 * 1024];
  48   pid_t p = __clone2 (f, st, sizeof (st), TEST_CLONE_FLAGS, 0);
  49 #else
  50   char st[128 * 1024];
  51   pid_t p = clone (f, st + sizeof (st), TEST_CLONE_FLAGS, 0);
  52 #endif
  53   if (p == -1)
  54     {
  55       printf("clone failed: %m\n");
  56       return 1;
  57     }
  58   printf ("new thread: %d\n", (int) p);
  59
  60   siginfo_t si;
  61   do
  62     if (sigwaitinfo (&ss, &si) < 0)
  63       {
  64         printf("sigwaitinfo failed: %m\n");
  65         kill (p, SIGKILL);
  66         return 1;
  67       }
  68   while  (si.si_signo != sig || si.si_code != SI_QUEUE);
  69
  70   int e;
  71   if (waitpid (p, &e, __WCLONE) != p)
  72     {
  73       puts ("waitpid failed");
  74       kill (p, SIGKILL);
  75       return 1;
  76     }
  77   if (!WIFEXITED (e))
  78     {
  79       if (WIFSIGNALED (e))
  80         printf ("died from signal %s\n", strsignal (WTERMSIG (e)));
  81       else
  82         puts ("did not terminate correctly");
  83       return 1;
  84     }
  85   if (WEXITSTATUS (e) != 0)
  86     {
  87       printf ("exit code %d\n", WEXITSTATUS (e));
  88       return 1;
  89     }
  90
  91   if (si.si_int != (int) p)
  92     {
  93       printf ("expected PID %d, got si_int %d\n", (int) p, si.si_int);
  94       kill (p, SIGKILL);
  95       return 1;
  96     }
  97
  98   if (si.si_pid != p)
  99     {
 100       printf ("expected PID %d, got si_pid %d\n", (int) p, (int) si.si_pid);
 101       kill (p, SIGKILL);
 102       return 1;
 103     }
 104
 105   if (getpid () != mypid)
 106     {
 107       puts ("my PID changed");
 108       return 1;
 109     }
 110
 111   return 0;
 112 }
 113
 114 #define TEST_FUNCTION do_test ()
 115 #include "../test-skeleton.c"