84 lines
3.3 KiB
C
84 lines
3.3 KiB
C
/*
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* Copyright (c) 1989 Jan-Simon Pendry
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* Copyright (c) 1989 Imperial College of Science, Technology & Medicine
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry at Imperial College, London.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)uwait.h 8.1 (Berkeley) 6/6/93
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*
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* $Id$
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*
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*/
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#if defined(mc68k) || defined(mc68000) || defined(mc68020) || defined(sparc) || defined(hp9000s300) || defined(hp9000s800)
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#define BITS_BIGENDIAN
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#endif
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#if defined(vax) || defined(i386)
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#define BITS_LITTLENDIAN
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#endif
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#if !defined BITS_BIGENDIAN && !defined BITS_LITTLENDIAN
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#error Do not know my byte ordering
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#endif
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/*
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* Structure of the information in the first word returned by both
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* wait and wait3. If w_stopval==WSTOPPED, then the second structure
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* describes the information returned, else the first. See WUNTRACED below.
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*/
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union wait {
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int w_status; /* used in syscall */
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/*
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* Terminated process status.
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*/
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struct {
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#ifdef BITS_LITTLENDIAN
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unsigned short w_Termsig:7; /* termination signal */
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unsigned short w_Coredump:1; /* core dump indicator */
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unsigned short w_Retcode:8; /* exit code if w_termsig==0 */
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#endif
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#ifdef BITS_BIGENDIAN
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unsigned short w_Fill1:16; /* high 16 bits unused */
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unsigned short w_Retcode:8; /* exit code if w_termsig==0 */
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unsigned short w_Coredump:1; /* core dump indicator */
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unsigned short w_Termsig:7; /* termination signal */
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#endif
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} w_U;
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};
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#define w_termsig w_U.w_Termsig
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#define w_coredump w_U.w_Coredump
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#define w_retcode w_U.w_Retcode
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#define WIFSIGNALED(x) ((x).w_termsig != 0)
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#define WIFEXITED(x) ((x).w_termsig == 0)
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