newlib/libc/include/sys/wait.h

   1 #ifndef _SYS_WAIT_H
   2 #define _SYS_WAIT_H
   3
   4 #ifdef __cplusplus
   5 extern "C" {
   6 #endif
   7
   8 #include <sys/types.h>
   9
  10 #define WNOHANG 1
  11 #define WUNTRACED 2
  12
  13 /* A status looks like:
  14       <1 byte info> <1 byte code>
  15
  16       <code> == 0, child has exited, info is the exit value
  17       <code> == 1..7e, child has exited, info is the signal number.
  18       <code> == 7f, child has stopped, info was the signal number.
  19       <code> == 80, there was a core dump.
  20 */
  21
  22 #define WIFEXITED(w)    (((w) & 0xff) == 0)
  23 #define WIFSIGNALED(w)  (((w) & 0x7f) > 0 && (((w) & 0x7f) < 0x7f))
  24 #define WIFSTOPPED(w)   (((w) & 0xff) == 0x7f)
  25 #define WEXITSTATUS(w)  (((w) >> 8) & 0xff)
  26 #define WTERMSIG(w)     ((w) & 0x7f)
  27 #define WSTOPSIG        WEXITSTATUS
  28
  29 pid_t wait (int *);
  30 pid_t waitpid (pid_t, int *, int);
  31
  32 #ifdef _LIBC
  33 pid_t _wait (int *);
  34 #endif
  35
  36 /* Provide prototypes for most of the _<systemcall> names that are
  37    provided in newlib for some compilers.  */
  38 pid_t _wait (int *);
  39
  40 #ifdef __cplusplus
  41 };
  42 #endif
  43
  44 #endif