tests/sigcont_return.c

   1 #include <signal.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <unistd.h>
   5 #include <errno.h>
   6
   7 #include <darwintest.h>
   8
   9 T_DECL(sigcontreturn, "checks that a call to waitid() for a child that is stopped and then continued returns correctly")
  10 {
  11         pid_t           pid;
  12         siginfo_t       siginfo;
  13         pid = fork();
  14         T_QUIET; T_ASSERT_NE_INT(pid, -1, "fork() failed!");
  15
  16         if (pid == 0) {
  17                 while (1) {
  18                 }
  19         }
  20
  21         kill(pid, SIGSTOP);
  22         kill(pid, SIGCONT);
  23         sleep(1);
  24
  25         T_QUIET; T_ASSERT_POSIX_SUCCESS(waitid(P_PID, pid, &siginfo, WCONTINUED), "Calling waitid() failed for pid %d", pid);
  26
  27         T_ASSERT_EQ_INT(siginfo.si_status, SIGCONT, "A call to waitid() for stopped and continued child returns 0x%x, expected SIGCONT (0x%x)", siginfo.si_status, SIGCONT );
  28         kill(pid, SIGKILL);
  29 }