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_GLOBAL_META(T_META_RUN_CONCURRENTLY(true));
  10
  11 T_DECL(sigcontreturn, "checks that a call to waitid() for a child that is stopped and then continued returns correctly")
  12 {
  13         pid_t           pid;
  14         siginfo_t       siginfo;
  15         pid = fork();
  16         T_QUIET; T_ASSERT_NE_INT(pid, -1, "fork() failed!");
  17
  18         if (pid == 0) {
  19                 while (1) {
  20                 }
  21         }
  22
  23         kill(pid, SIGSTOP);
  24         kill(pid, SIGCONT);
  25         sleep(1);
  26
  27         T_QUIET; T_ASSERT_POSIX_SUCCESS(waitid(P_PID, pid, &siginfo, WCONTINUED), "Calling waitid() failed for pid %d", pid);
  28
  29         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 );
  30         kill(pid, SIGKILL);
  31 }