1/* 2 * tc.wait.h: <sys/wait.h> for machines that don't have it or have it and 3 * is incorrect. 4 */ 5/*- 6 * Copyright (c) 1980, 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33#ifndef _h_tc_wait 34#define _h_tc_wait 35 36/* 37 * a little complicated #include <sys/wait.h>! :-( 38 * We try to use the system's wait.h when we can... 39 */ 40 41#if SYSVREL > 0 && !defined(__linux__) && !defined(__GNU__) && !defined(__GLIBC__) 42# ifdef hpux 43# ifndef __hpux 44# define NEEDwait 45# else 46# ifndef POSIX 47# define _BSD 48# endif 49# ifndef _CLASSIC_POSIX_TYPES 50# define _CLASSIC_POSIX_TYPES 51# endif 52# include <sys/wait.h> /* 7.0 fixed it again */ 53# endif /* __hpux */ 54# else /* hpux */ 55# if (defined(OREO) || defined(IRIS4D) || defined(POSIX)) && !defined(_VMS_POSIX) 56# include <sys/wait.h> 57# else /* OREO || IRIS4D || POSIX */ 58# define NEEDwait 59# endif /* OREO || IRIS4D || POSIX */ 60# endif /* hpux */ 61#else /* SYSVREL == 0 || glibc */ 62# ifdef _MINIX 63# undef NEEDwait 64# include "mi.wait.h" 65# else 66# ifndef WINNT_NATIVE 67# include <sys/wait.h> 68# endif /* WINNT_NATIVE */ 69# endif /* _MINIX */ 70#endif /* SYSVREL == 0 || glibc */ 71 72#ifdef NEEDwait 73/* 74 * This wait is for big-endians and little endians 75 */ 76union wait { 77 int w_status; 78# ifdef _SEQUENT_ 79 struct { 80 unsigned short w_Termsig:7; 81 unsigned short w_Coredump:1; 82 unsigned short w_Retcode:8; 83 } w_T; 84 struct { 85 unsigned short w_Stopval:8; 86 unsigned short w_Stopsig:8; 87 } w_S; 88}; 89 90# define w_termsig w_T.w_Termsig 91# define w_coredump w_T.w_Coredump 92# define w_retcode w_T.w_Retcode 93# define w_stopval w_S.w_Stopval 94# define w_stopsig w_S.w_Stopsig 95# else /* _SEQUENT_ */ 96# if defined(vax) || defined(__vax__) || defined(i386) || defined(_I386) || defined(__i386__) 97 union { 98 struct { 99 unsigned int w_Termsig:7; 100 unsigned int w_Coredump:1; 101 unsigned int w_Retcode:8; 102 unsigned int w_Dummy:16; 103 } w_T; 104 struct { 105 unsigned int w_Stopval:8; 106 unsigned int w_Stopsig:8; 107 unsigned int w_Dummy:16; 108 } w_S; 109 } w_P; 110# else /* mc68000 || sparc || ??? */ 111# if defined(_CRAY) || defined(ANY_OTHER_64BIT_MACHINE) 112# define DUMMY_BITS 48 113# else /* _CRAY */ 114# define DUMMY_BITS 16 115# endif /* _CRAY */ 116 union { 117 struct { 118 unsigned int w_Dummy:DUMMY_BITS; 119 unsigned int w_Retcode:8; 120 unsigned int w_Coredump:1; 121 unsigned int w_Termsig:7; 122 } w_T; 123 struct { 124 unsigned int w_Dummy:DUMMY_BITS; 125 unsigned int w_Stopsig:8; 126 unsigned int w_Stopval:8; 127 } w_S; 128 } w_P; 129# endif /* vax || __vax__ || i386 || _I386 || __i386__ */ 130}; 131 132# define w_termsig w_P.w_T.w_Termsig 133# define w_coredump w_P.w_T.w_Coredump 134# define w_retcode w_P.w_T.w_Retcode 135# define w_stopval w_P.w_S.w_Stopval 136# define w_stopsig w_P.w_S.w_Stopsig 137# endif /* _SEQUENT_ */ 138 139 140# ifndef WNOHANG 141# define WNOHANG 1 /* dont hang in wait */ 142# endif 143 144# ifndef WUNTRACED 145# define WUNTRACED 2 /* tell about stopped, untraced children */ 146# endif 147 148# define WSTOPPED 0177 149# define WIFSTOPPED(x) ((x).w_stopval == WSTOPPED) 150# define WIFSIGNALED(x) (((x).w_stopval != WSTOPPED) && ((x).w_termsig != 0)) 151 152#endif /* NEEDwait */ 153 154#endif /* _h_tc_wait */ 155