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- /* $Header: /home/hyperion/mu/christos/src/sys/tcsh-6.00/RCS/tc.wait.h,v 3.0 1991/07/04 21:49:28 christos Exp $ */
- /*
- * tc.wait.h: Wait.h for machines that don't have it or have it and
- * is incorrect.
- */
- /*-
- * Copyright (c) 1980, 1991 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- #ifndef _h_tc_wait
- #define _h_tc_wait
-
- /*
- * This wait is for big-endians and little endians
- */
- union wait {
- int w_status;
- # ifdef _SEQUENT_
- struct {
- unsigned short w_Termsig:7;
- unsigned short w_Coredump:1;
- unsigned short w_Retcode:8;
- } w_T;
- struct {
- unsigned short w_Stopval:8;
- unsigned short w_Stopsig:8;
- } w_S;
- };
-
- # define w_termsig w_T.w_Termsig
- # define w_coredump w_T.w_Coredump
- # define w_retcode w_T.w_Retcode
- # define w_stopval w_S.w_Stopval
- # define w_stopsig w_S.w_Stopsig
- #else /* _SEQUENT_ */
- # if defined(vax) || defined(i386)
- union {
- struct {
- unsigned int w_Termsig:7;
- unsigned int w_Coredump:1;
- unsigned int w_Retcode:8;
- unsigned int w_Dummy:16;
- } w_T;
- struct {
- unsigned int w_Stopval:8;
- unsigned int w_Stopsig:8;
- unsigned int w_Dummy:16;
- } w_S;
- } w_P;
- # else /* mc68000 || sparc || ??? */
- union {
- struct {
- unsigned int w_Dummy:16;
- unsigned int w_Retcode:8;
- unsigned int w_Coredump:1;
- unsigned int w_Termsig:7;
- } w_T;
- struct {
- unsigned int w_Dummy:16;
- unsigned int w_Stopsig:8;
- unsigned int w_Stopval:8;
- } w_S;
- } w_P;
- # endif /* vax || i386 */
- };
-
- # define w_termsig w_P.w_T.w_Termsig
- # define w_coredump w_P.w_T.w_Coredump
- # define w_retcode w_P.w_T.w_Retcode
- # define w_stopval w_P.w_S.w_Stopval
- # define w_stopsig w_P.w_S.w_Stopsig
- #endif /* _SEQUENT_ */
-
-
- #ifndef WNOHANG
- # define WNOHANG 1 /* dont hang in wait */
- #endif
- # ifndef WUNTRACED
- # define WUNTRACED 2 /* tell about stopped, untraced children */
- # endif
- # define WSTOPPED 0177
- # define WIFSTOPPED(x) ((x).w_stopval == WSTOPPED)
- # define WIFSIGNALED(x) (((x).w_stopval != WSTOPPED) && ((x).w_termsig != 0))
- #endif /* _h_tc_wait */
-