none/tests/pth_term_signal.c

   1 #include <stdio.h>
   2 #include <unistd.h>
   3 #include <signal.h>
   4 #include <pthread.h>
   5 #include <assert.h>
   6
   7 #include <sys/wait.h>
   8
   9 void *
  10 slavethread(void *arg)
  11 {
  12     sigset_t sigmask;
  13
  14     if (sigfillset(&sigmask))
  15     {
  16         fprintf(stderr, "Error line %u\n", __LINE__);
  17         _exit(255);
  18     }
  19
  20     if (pthread_sigmask(SIG_UNBLOCK, &sigmask, 0))
  21     {
  22         fprintf(stderr, "Error line %u\n", __LINE__);
  23         _exit(255);
  24     }
  25
  26     while (1)
  27         sleep(1);
  28 }
  29
  30 void
  31 childprocess()
  32 {
  33     pthread_t slave;
  34
  35     if (pthread_create(&slave, 0, &slavethread, 0))
  36     {
  37         fprintf(stderr, "Error line %u\n", __LINE__);
  38         _exit(255);
  39     }
  40
  41     while (1)
  42         sleep(1);
  43 }
  44
  45 int main(int argc, char **argv)
  46 {
  47     sigset_t sigmask;
  48
  49     if (sigfillset(&sigmask))
  50     {
  51         fprintf(stderr, "Error line %u\n", __LINE__);
  52         return 255;
  53     }
  54
  55     if (pthread_sigmask(SIG_BLOCK, &sigmask, 0))
  56     {
  57         fprintf(stderr, "Error line %u\n", __LINE__);
  58         return 255;
  59     }
  60
  61     int childpid = fork();
  62
  63     if (-1 == childpid)
  64     {
  65         fprintf(stderr, "Error line %u\n", __LINE__);
  66         return 255;
  67     }
  68
  69     if ( ! childpid)
  70         childprocess();
  71
  72     if (kill(childpid, SIGTERM))
  73     {
  74         fprintf(stderr, "Error line %u\n", __LINE__);
  75         return 255;
  76     }
  77
  78     int status;
  79     if (childpid != waitpid(childpid, &status, 0))
  80     {
  81         fprintf(stderr, "Error line %u\n", __LINE__);
  82         return 255;
  83     }
  84
  85     assert(WIFSIGNALED(status));
  86
  87     fprintf(stderr, "Signal %d\n", WTERMSIG(status));
  88     assert(WTERMSIG(status) == SIGTERM);
  89
  90     return 0;
  91 }