gdb/wait.h

   1
   2 /* Define how to access the structure that the wait system call stores.
   3    On many systems, there is a structure defined for this.
   4    But on vanilla-ish USG systems there is not.  */
   5
   6 #ifndef HAVE_WAIT_STRUCT
   7 #define WAITTYPE int
   8 #define WIFSTOPPED(w) (((w)&0377) == 0177)
   9 #define WIFSIGNALED(w) (((w)&0377) != 0177 && ((w)&~0377) == 0)
  10 #define WIFEXITED(w) (((w)&0377) == 0)
  11 #define WRETCODE(w) ((w) >> 8)
  12 #define WSTOPSIG(w) ((w) >> 8)
  13 #define WCOREDUMP(w) (((w)&0200) != 0)
  14 #define WTERMSIG(w) ((w) & 0177)
  15 #define WSETEXIT(w, status) ((w) = (status))
  16 #define WSETSTOP(w,sig)  ((w) = (0177 | ((sig) << 8)))
  17 #else
  18 #include <sys/wait.h>
  19 #define WAITTYPE union wait
  20 #define WRETCODE(w) (w).w_retcode
  21 #define WSTOPSIG(w) (w).w_stopsig
  22 #define WCOREDUMP(w) (w).w_coredump
  23 #define WTERMSIG(w) (w).w_termsig
  24 #define WSETEXIT(w, status) ((w).w_status = (status))
  25 #define WSETSTOP(w,sig)  \
  26   ((w).w_stopsig = (sig), (w).w_coredump = 0, (w).w_termsig = 0177)
  27 #endif