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/*
* SCCS: @(#)remwait.c 1.11 (97/07/23)
*
* 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: @(#)remwait.c 1.11 97/07/23 TETware release 3.3
NAME: remwait.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: April 1992
SYNOPSIS:
#include "tet_api.h"
int tet_remwait(int remoteid, int waittime, int *statloc);
DESCRIPTION:
DTET API function
wait for process started by tet_remexec()
return 0 if successful or -1 on error
if successful, the exit status of the remote process is returned
indirectly through *statloc
MODIFICATIONS:
Andrew Dingwall, UniSoft Ltd., December 1993
changed dapi.h to dtet2/tet_api.h
Geoff Clare, UniSoft Ltd., July 1996
Changes for TETWare.
Geoff Clare, UniSoft Ltd., Sept 1996
Make rtab updates signal safe.
Changes for TETWare-Lite.
************************************************************************/
#ifndef TET_LITE /* -START-LITE-CUT- */
#include <stdio.h>
#include <errno.h>
#include <signal.h>
#include "dtmac.h"
#include "tet_api.h"
#include "dtmsg.h"
#include "ptab.h"
#include "rtab.h"
#include "valmsg.h"
#include "servlib.h"
#include "dtetlib.h"
#include "sigsafe.h"
int tet_remwait(remoteid, waittime, statloc)
int remoteid, waittime, *statloc;
{
register struct rtab *rp;
register int rc;
TET_SIGSAFE_DEF
/* see if the process was started by tet_remexec() */
if ((rp = tet_rtfind(remoteid)) == (struct rtab *) 0) {
errno = EINVAL;
tet_errno = TET_ER_INVAL;
return(-1);
}
/* see if the process has already been waited for */
if (rp->rt_pid < 0L) {
errno = ECHILD;
tet_errno = TET_ER_PID;
return(-1);
}
/* do the remote wait operation and handle the reply code */
TET_SIGSAFE_START;
if (tet_tcwait(rp->rt_sysid, rp->rt_pid, waittime, statloc) < 0)
{
rc = -1;
tet_errno = -tet_tcerrno;
switch (tet_tcerrno) {
case ER_WAIT:
case ER_TIMEDOUT:
errno = EAGAIN;
break;
case ER_EINTR:
errno = EINTR;
break;
case ER_PID:
errno = ECHILD;
/* show the process as no longer running */
rp->rt_pid = -1L;
break;
default:
errno = EIO;
/* show the process as no longer running */
rp->rt_pid = -1L;
break;
}
}
else
{
rc = 0;
/* show the process as no longer running */
rp->rt_pid = -1L;
}
TET_SIGSAFE_END;
return(rc);
}
#else /* -END-LITE-CUT- */
/* avoid "empty" file */
int tet_remwait_not_supported;
#endif /* -LITE-CUT-LINE- */
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