Home | History | Annotate | Download | only in call-restarts 
      1 #include <unistd.h>
      2 #include <stdio.h>
      3 #include <signal.h>
      4 
      5 static int sigchld_no;
      6 static int nosig_no;
      7 static int weird_value;
      8 
      9 void
     10 sigchld_handler (int signo)
     11 {
     12   sigchld_no++;
     13   printf ("Got sigchld %d.\n", sigchld_no);
     14 }
     15 
     16 int
     17 call_me (int some_value)
     18 {
     19   int ret_val = 0;
     20   int i;
     21   for (i = 0; i < some_value; i++)
     22     {
     23       int result = 0;
     24       if (i%2 == 0)
     25           result = kill (getpid(), SIGCHLD);
     26       else
     27         sigchld_no++;
     28 
     29       usleep(1000);
     30       if (result == 0)
     31         ret_val++;
     32     }
     33   usleep (10000);
     34   return ret_val;
     35 }
     36 
     37 int
     38 call_me_nosig (int some_value)
     39 {
     40   int ret_val = 0;
     41   int i;
     42   for (i = 0; i < some_value; i++)
     43     weird_value += i % 4;
     44 
     45   nosig_no += some_value;
     46   return some_value;
     47 }
     48 
     49 int
     50 main ()
     51 {
     52   int ret_val;
     53   signal (SIGCHLD, sigchld_handler);
     54 
     55   ret_val = call_me (2);  // Stop here in main.
     56 
     57   ret_val = call_me_nosig (10);
     58 
     59   return 0;
     60 
     61 }
     62