1 /* $Header: /src/pub/tcsh/tc.wait.h,v 3.11 2000/11/11 23:03:39 christos Exp $ */ 2 /* 3 * tc.wait.h: <sys/wait.h> for machines that don't have it or have it and 4 * is incorrect. 5 */ 6 /*- 7 * Copyright (c) 1980, 1991 The Regents of the University of California. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 */ 38 #ifndef _h_tc_wait 39 #define _h_tc_wait 40 41 /* 42 * a little complicated #include <sys/wait.h>! :-( 43 * We try to use the system's wait.h when we can... 44 */ 45 46 #if SYSVREL > 0 && !defined(linux) 47 # ifdef hpux 48 # ifndef __hpux 49 # define NEEDwait 50 # else 51 # ifndef POSIX 52 # define _BSD 53 # endif 54 # ifndef _CLASSIC_POSIX_TYPES 55 # define _CLASSIC_POSIX_TYPES 56 # endif 57 # include <sys/wait.h> /* 7.0 fixed it again */ 58 # endif /* __hpux */ 59 # else /* hpux */ 60 # if (defined(OREO) || defined(IRIS4D) || defined(POSIX)) && !defined(_VMS_POSIX) 61 # include <sys/wait.h> 62 # else /* OREO || IRIS4D || POSIX */ 63 # define NEEDwait 64 # endif /* OREO || IRIS4D || POSIX */ 65 # endif /* hpux */ 66 #else /* SYSVREL == 0 || linux */ 67 # ifdef _MINIX 68 # undef NEEDwait 69 # include "mi.wait.h" 70 # else 71 # ifndef WINNT_NATIVE 72 # include <sys/wait.h> 73 # endif /* WINNT_NATIVE */ 74 # endif /* _MINIX */ 75 #endif /* SYSVREL == 0 || linux */ 76 77 #ifdef NEEDwait 78 /* 79 * This wait is for big-endians and little endians 80 */ 81 union wait { 82 int w_status; 83 # ifdef _SEQUENT_ 84 struct { 85 unsigned short w_Termsig:7; 86 unsigned short w_Coredump:1; 87 unsigned short w_Retcode:8; 88 } w_T; 89 struct { 90 unsigned short w_Stopval:8; 91 unsigned short w_Stopsig:8; 92 } w_S; 93 }; 94 95 # define w_termsig w_T.w_Termsig 96 # define w_coredump w_T.w_Coredump 97 # define w_retcode w_T.w_Retcode 98 # define w_stopval w_S.w_Stopval 99 # define w_stopsig w_S.w_Stopsig 100 # else /* _SEQUENT_ */ 101 # if defined(vax) || defined(i386) || defined(_I386) 102 union { 103 struct { 104 unsigned int w_Termsig:7; 105 unsigned int w_Coredump:1; 106 unsigned int w_Retcode:8; 107 unsigned int w_Dummy:16; 108 } w_T; 109 struct { 110 unsigned int w_Stopval:8; 111 unsigned int w_Stopsig:8; 112 unsigned int w_Dummy:16; 113 } w_S; 114 } w_P; 115 # else /* mc68000 || sparc || ??? */ 116 # if defined(_CRAY) || defined(ANY_OTHER_64BIT_MACHINE) 117 # define DUMMY_BITS 48 118 # else /* _CRAY */ 119 # define DUMMY_BITS 16 120 # endif /* _CRAY */ 121 union { 122 struct { 123 unsigned int w_Dummy:DUMMY_BITS; 124 unsigned int w_Retcode:8; 125 unsigned int w_Coredump:1; 126 unsigned int w_Termsig:7; 127 } w_T; 128 struct { 129 unsigned int w_Dummy:DUMMY_BITS; 130 unsigned int w_Stopsig:8; 131 unsigned int w_Stopval:8; 132 } w_S; 133 } w_P; 134 # endif /* vax || i386 || _I386 */ 135 }; 136 137 # define w_termsig w_P.w_T.w_Termsig 138 # define w_coredump w_P.w_T.w_Coredump 139 # define w_retcode w_P.w_T.w_Retcode 140 # define w_stopval w_P.w_S.w_Stopval 141 # define w_stopsig w_P.w_S.w_Stopsig 142 # endif /* _SEQUENT_ */ 143 144 145 # ifndef WNOHANG 146 # define WNOHANG 1 /* dont hang in wait */ 147 # endif 148 149 # ifndef WUNTRACED 150 # define WUNTRACED 2 /* tell about stopped, untraced children */ 151 # endif 152 153 # define WSTOPPED 0177 154 # define WIFSTOPPED(x) ((x).w_stopval == WSTOPPED) 155 # define WIFSIGNALED(x) (((x).w_stopval != WSTOPPED) && ((x).w_termsig != 0)) 156 157 #endif /* NEEDwait */ 158 159 #endif /* _h_tc_wait */ 160