PageRenderTime 57ms CodeModel.GetById 48ms app.highlight 6ms RepoModel.GetById 1ms app.codeStats 0ms

/contrib/tcsh/tc.wait.h

https://bitbucket.org/freebsd/freebsd-head/
C++ Header | 155 lines | 104 code | 11 blank | 40 comment | 22 complexity | 686539fb4147e9cfcdf6a42f09ba5431 MD5 | raw file
  1/* $Header: /p/tcsh/cvsroot/tcsh/tc.wait.h,v 3.15 2011/02/04 18:00:26 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. Neither the name of the University nor the names of its contributors
 19 *    may be used to endorse or promote products derived from this software
 20 *    without specific prior written permission.
 21 *
 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 32 * SUCH DAMAGE.
 33 */
 34#ifndef _h_tc_wait
 35#define _h_tc_wait
 36
 37/*
 38 * a little complicated #include <sys/wait.h>! :-(
 39 * We try to use the system's wait.h when we can...
 40 */
 41
 42#if SYSVREL > 0 && !defined(__linux__) && !defined(__GNU__) && !defined(__GLIBC__)
 43# ifdef hpux
 44#  ifndef __hpux
 45#   define NEEDwait
 46#  else
 47#   ifndef POSIX
 48#    define _BSD
 49#   endif
 50#   ifndef _CLASSIC_POSIX_TYPES
 51#    define _CLASSIC_POSIX_TYPES
 52#   endif
 53#   include <sys/wait.h> /* 7.0 fixed it again */
 54#  endif /* __hpux */
 55# else /* hpux */
 56#  if (defined(OREO) || defined(IRIS4D) || defined(POSIX)) && !defined(_VMS_POSIX)
 57#   include <sys/wait.h>
 58#  else	/* OREO || IRIS4D || POSIX */
 59#   define NEEDwait
 60#  endif /* OREO || IRIS4D || POSIX */
 61# endif	/* hpux */
 62#else /* SYSVREL == 0 || glibc */
 63# ifdef _MINIX
 64#  undef NEEDwait
 65#  include "mi.wait.h"
 66# else
 67#  ifndef WINNT_NATIVE
 68#   include <sys/wait.h>
 69#  endif /* WINNT_NATIVE */
 70# endif /* _MINIX */
 71#endif /* SYSVREL == 0 || glibc */
 72
 73#ifdef NEEDwait
 74/*
 75 *	This wait is for big-endians and little endians
 76 */
 77union wait {
 78    int     w_status;
 79# ifdef _SEQUENT_
 80    struct {
 81	unsigned short w_Termsig:7;
 82	unsigned short w_Coredump:1;
 83	unsigned short w_Retcode:8;
 84    }       w_T;
 85    struct {
 86	unsigned short w_Stopval:8;
 87	unsigned short w_Stopsig:8;
 88    }       w_S;
 89};
 90
 91#  define w_termsig     w_T.w_Termsig
 92#  define w_coredump    w_T.w_Coredump
 93#  define w_retcode     w_T.w_Retcode
 94#  define w_stopval     w_S.w_Stopval
 95#  define w_stopsig     w_S.w_Stopsig
 96# else /* _SEQUENT_ */
 97#  if defined(vax) || defined(__vax__) || defined(i386) || defined(_I386) || defined(__i386__)
 98    union {
 99	struct {
100	    unsigned int w_Termsig:7;
101	    unsigned int w_Coredump:1;
102	    unsigned int w_Retcode:8;
103	    unsigned int w_Dummy:16;
104	}       w_T;
105	struct {
106	    unsigned int w_Stopval:8;
107	    unsigned int w_Stopsig:8;
108	    unsigned int w_Dummy:16;
109	}       w_S;
110    }       w_P;
111#  else /* mc68000 || sparc || ??? */
112#    if defined(_CRAY) || defined(ANY_OTHER_64BIT_MACHINE)
113#      define DUMMY_BITS	48
114#    else /* _CRAY */
115#      define DUMMY_BITS	16
116#    endif /* _CRAY */
117    union {
118	struct {
119	    unsigned int w_Dummy:DUMMY_BITS;
120	    unsigned int w_Retcode:8;
121	    unsigned int w_Coredump:1;
122	    unsigned int w_Termsig:7;
123	}       w_T;
124	struct {
125	    unsigned int w_Dummy:DUMMY_BITS;
126	    unsigned int w_Stopsig:8;
127	    unsigned int w_Stopval:8;
128	}       w_S;
129    }       w_P;
130#  endif /* vax || __vax__ || i386 || _I386 || __i386__ */
131};
132
133#  define w_termsig	w_P.w_T.w_Termsig
134#  define w_coredump	w_P.w_T.w_Coredump
135#  define w_retcode	w_P.w_T.w_Retcode
136#  define w_stopval	w_P.w_S.w_Stopval
137#  define w_stopsig	w_P.w_S.w_Stopsig
138# endif /* _SEQUENT_ */
139
140
141# ifndef WNOHANG
142#  define WNOHANG	1	/* dont hang in wait */
143# endif
144
145# ifndef WUNTRACED
146#  define WUNTRACED	2	/* tell about stopped, untraced children */
147# endif
148
149# define WSTOPPED 0177
150# define WIFSTOPPED(x)	((x).w_stopval == WSTOPPED)
151# define WIFSIGNALED(x)	(((x).w_stopval != WSTOPPED) && ((x).w_termsig != 0))
152
153#endif /* NEEDwait */
154
155#endif /* _h_tc_wait */