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/*
* SCCS: @(#)wait3.c 1.10 (97/07/21)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1992 X/Open Company Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieval system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/************************************************************************
SCCS: @(#)wait3.c 1.10 97/07/21 TETware release 3.3
NAME: wait3.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: April 1992
DESCRIPTION:
function to wait for child process to terminate, possibly without
blocking
note that this function is not required or implemented on WIN32
MODIFICATIONS:
Andrew Dingwall, UniSoft Ltd., November 1992
Made call to waitpid() the default.
************************************************************************/
#include <stdio.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "dtmac.h"
#include "dtetlib.h"
/*
** tet_dowait3() - call wait3() or waitpid()
**
** return pid of waited-for process,
** 0 if options indicates a non-blocking wait and there are no
** un-waited-for children
** -1 on error
**
** if successful, the exit status of the child process is returned
** indirectly through *statp
*/
int tet_dowait3(statp, options)
int *statp, options;
{
#if defined(SVR2) || defined(BSD42) || defined(BSD43)
register int rc;
union wait status;
if ((rc = wait3(&status, options, 0)) > 0)
*statp = status.w_status;
return(rc);
#else /* POSIX-conforming systems */
return(waitpid((pid_t) -1, statp, options));
#endif
}
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