gnu/abc-shell/ksh_wait.h

   1 /* Wrapper around the ugly sys/wait includes/ifdefs */
   2 /* $Id$ */
   3
   4 /* Get rid of system macros (which probably use union wait) */
   5 #undef WIFCORED
   6 #undef WIFEXITED
   7 #undef WEXITSTATUS
   8 #undef WIFSIGNALED
   9 #undef WTERMSIG
  10 #undef WIFSTOPPED
  11 #undef WSTOPSIG
  12
  13 typedef int WAIT_T;
  14
  15 #define WIFCORED(s)     ((s) & 0x80)
  16 #define WSTATUS(s)      (s)
  17
  18 #define WIFEXITED(s)    (((s) & 0xff) == 0)
  19 #define WEXITSTATUS(s)  (((s) >> 8) & 0xff)
  20 #define WIFSIGNALED(s)  (((s) & 0xff) != 0 && ((s) & 0xff) != 0x7f)
  21 #define WTERMSIG(s)     ((s) & 0x7f)
  22 #define WIFSTOPPED(s)   (((s) & 0xff) == 0x7f)
  23 #define WSTOPSIG(s)     (((s) >> 8) & 0xff)
  24
  25 #define ksh_waitpid(p, s, o)    waitpid((p), (s), (o))