bin/ksh/ksh_wait.h

   1 /*      $NetBSD: ksh_wait.h,v 1.2 1997/01/12 19:12:03 tls Exp $ */
   2
   3 /* Wrapper around the ugly sys/wait includes/ifdefs */
   4 /* $NetBSD: ksh_wait.h,v 1.2 1997/01/12 19:12:03 tls Exp $ */
   5
   6 #ifdef HAVE_SYS_WAIT_H
   7 # include <sys/wait.h>
   8 #endif
   9
  10 #ifndef POSIX_SYS_WAIT
  11 /* Get rid of system macros (which probably use union wait) */
  12 # undef WIFCORED
  13 # undef WIFEXITED
  14 # undef WEXITSTATUS
  15 # undef WIFSIGNALED
  16 # undef WTERMSIG
  17 # undef WIFSTOPPED
  18 # undef WSTOPSIG
  19 #endif /* POSIX_SYS_WAIT */
  20
  21 typedef int WAIT_T;
  22
  23 #ifndef WIFCORED
  24 # define WIFCORED(s)    ((s) & 0x80)
  25 #endif
  26 #define WSTATUS(s)      (s)
  27
  28 #ifndef WIFEXITED
  29 # define WIFEXITED(s)   (((s) & 0xff) == 0)
  30 #endif
  31 #ifndef WEXITSTATUS
  32 # define WEXITSTATUS(s) (((s) >> 8) & 0xff)
  33 #endif
  34 #ifndef WIFSIGNALED
  35 # define WIFSIGNALED(s) (((s) & 0xff) != 0 && ((s) & 0xff) != 0x7f)
  36 #endif
  37 #ifndef WTERMSIG
  38 # define WTERMSIG(s)    ((s) & 0x7f)
  39 #endif
  40 #ifndef WIFSTOPPED
  41 # define WIFSTOPPED(s)  (((s) & 0xff) == 0x7f)
  42 #endif
  43 #ifndef WSTOPSIG
  44 # define WSTOPSIG(s)    (((s) >> 8) & 0xff)
  45 #endif
  46
  47 #if !defined(HAVE_WAITPID) && defined(HAVE_WAIT3)
  48   /* always used with p == -1 */
  49 # define ksh_waitpid(p, s, o)   wait3((s), (o), (struct rusage *) 0)
  50 #else /* !HAVE_WAITPID && HAVE_WAIT3 */
  51 # define ksh_waitpid(p, s, o)   waitpid((p), (s), (o))
  52 #endif /* !HAVE_WAITPID && HAVE_WAIT3 */