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Annotation of 43BSDReno/usr.sbin/amd/include/uwait.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * $Id: uwait.h,v 5.2 90/06/23 22:20:31 jsp Rel $
                      3:  *
                      4:  * Copyright (c) 1989 Jan-Simon Pendry
                      5:  * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
                      6:  * Copyright (c) 1989 The Regents of the University of California.
                      7:  * All rights reserved.
                      8:  *
                      9:  * This code is derived from software contributed to Berkeley by
                     10:  * Jan-Simon Pendry at Imperial College, London.
                     11:  *
                     12:  * Redistribution and use in source and binary forms are permitted provided
                     13:  * that: (1) source distributions retain this entire copyright notice and
                     14:  * comment, and (2) distributions including binaries display the following
                     15:  * acknowledgement:  ``This product includes software developed by the
                     16:  * University of California, Berkeley and its contributors'' in the
                     17:  * documentation or other materials provided with the distribution and in
                     18:  * all advertising materials mentioning features or use of this software.
                     19:  * Neither the name of the University nor the names of its contributors may
                     20:  * be used to endorse or promote products derived from this software without
                     21:  * specific prior written permission.
                     22:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     23:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     24:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     25:  *
                     26:  *     @(#)uwait.h     5.1 (Berkeley) 7/19/90
                     27:  */
                     28: 
                     29: #if defined(mc68k) || defined(mc68000) || defined(mc68020) || defined(sparc) || defined(hp9000s300)
                     30: #define BITS_BIGENDIAN
                     31: #endif
                     32: #if defined(vax) || defined(i386)
                     33: #define BITS_LITTLENDIAN
                     34: #endif
                     35: #if !defined BITS_BIGENDIAN && !defined BITS_LITTLENDIAN
                     36:  #error Do not know my byte ordering
                     37: #endif
                     38: 
                     39: /*
                     40:  * Structure of the information in the first word returned by both
                     41:  * wait and wait3.  If w_stopval==WSTOPPED, then the second structure
                     42:  * describes the information returned, else the first.  See WUNTRACED below.
                     43:  */
                     44: union wait     {
                     45:        int     w_status;               /* used in syscall */
                     46:        /*
                     47:         * Terminated process status.
                     48:         */
                     49:        struct {
                     50: #ifdef BITS_LITTLENDIAN
                     51:                unsigned short  w_Termsig:7;    /* termination signal */
                     52:                unsigned short  w_Coredump:1;   /* core dump indicator */
                     53:                unsigned short  w_Retcode:8;    /* exit code if w_termsig==0 */
                     54: #endif
                     55: #ifdef BITS_BIGENDIAN
                     56:                unsigned short  w_Fill1:16;     /* high 16 bits unused */
                     57:                unsigned short  w_Retcode:8;    /* exit code if w_termsig==0 */
                     58:                unsigned short  w_Coredump:1;   /* core dump indicator */
                     59:                unsigned short  w_Termsig:7;    /* termination signal */
                     60: #endif
                     61:        } w_U;
                     62: };
                     63: #define        w_termsig       w_U.w_Termsig
                     64: #define w_coredump     w_U.w_Coredump
                     65: #define w_retcode      w_U.w_Retcode
                     66: 
                     67: #define WIFSIGNALED(x) ((x).w_termsig != 0)
                     68: #define WIFEXITED(x)   ((x).w_termsig == 0)

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