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- /*
- * $Id: uwait.h,v 5.1 89/11/17 18:22:37 jsp Exp Locker: jsp $
- *
- * Copyright (c) 1989 Jan-Simon Pendry
- * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Jan-Simon Pendry at Imperial College, London.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by Imperial College of Science, Technology and Medicine, London, UK.
- * The names of the College and University may not be used to endorse
- * or promote products derived from this software without specific
- * prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * %W% (Berkeley) %G%
- */
-
- #if defined(mc68k) || defined(mc68000) || defined(mc68020) || defined(sparc) || defined(hp9000s300)
- #define BITS_BIGENDIAN
- #endif
- #if defined(vax) || defined(i386)
- #define BITS_LITTLENDIAN
- #endif
- #if !defined BITS_BIGENDIAN && !defined BITS_LITTLENDIAN
- #error Do not know my byte ordering
- #endif
-
- /*
- * Structure of the information in the first word returned by both
- * wait and wait3. If w_stopval==WSTOPPED, then the second structure
- * describes the information returned, else the first. See WUNTRACED below.
- */
- union wait {
- int w_status; /* used in syscall */
- /*
- * Terminated process status.
- */
- struct {
- #ifdef BITS_LITTLENDIAN
- unsigned short w_Termsig:7; /* termination signal */
- unsigned short w_Coredump:1; /* core dump indicator */
- unsigned short w_Retcode:8; /* exit code if w_termsig==0 */
- #endif
- #ifdef BITS_BIGENDIAN
- unsigned short w_Fill1:16; /* high 16 bits unused */
- unsigned short w_Retcode:8; /* exit code if w_termsig==0 */
- unsigned short w_Coredump:1; /* core dump indicator */
- unsigned short w_Termsig:7; /* termination signal */
- #endif
- } w_U;
- };
- #define w_termsig w_U.w_Termsig
- #define w_coredump w_U.w_Coredump
- #define w_retcode w_U.w_Retcode
-
- #define WIFSIGNALED(x) ((x).w_termsig != 0)
- #define WIFEXITED(x) ((x).w_termsig == 0)
-