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/*
* SCCS: @(#)exit.c 1.14 (98/08/28)
*
* 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: @(#)exit.c 1.14 98/08/28 TETware release 3.3
NAME: exit.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: May 1992
SYNOPSIS:
#include "tet_api.h"
void tet_exit(int status);
void tet_logoff();
DESCRIPTION:
DTET API functions
Clean up and exit from a process linked with mtcm.o, stcm.o or
tcmrem.o.
tet_exit() calls tet_logoff(), then calls exit() to cause the calling
process to terminate.
tet_exit() should be called instead of exit() by a TCM process.
tet_logoff() logs off all servers to which the calling process is
logged on.
tet_logoff() should be called directly by a process linked with
tcmrem.o which no longer wishes to use DTET servers
eg: if the parent process is about to exec another process.
If a client process exits without logging off a server accessed via a
connection-based transport, the server will emit a diagnostic but
should otherwise proceed as if the logoff had been performed.
However, if the server is accessed via a conectionless transport,
it will not be aware that the client has exited; the results are
rather less predictable in this case.
MODIFICATIONS:
Denis McConalogue, UniSoft Limited, September 1993
added tet_disconnect() function - disconnect from all connected
servers without sending OP_LOGOFF request message.
Andrew Dingwall, UniSoft Ltd., December 1993
moved disconnect stuff to a separate file
changed dapi.h to dtet2/tet_api.h
Geoff Clare, UniSoft Ltd., August 1996
Changes for TETWare.
Geoff Clare, UniSoft Ltd., Sept 1996
Make calls to tet_ti_talk(), etc. signal safe.
Changes for TETWare-Lite.
Andrew Dingwall, UniSoft Ltd., July 1998
Added support for shared API libraries.
Aaron Plattner, April 2010
Fixed warnings when compiled with GCC's -Wall option.
************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include "dtmac.h"
#include "tet_api.h"
#include "dtmsg.h"
#include "dtthr.h"
#include "ptab.h"
#include "servlib.h"
#include "tslib.h"
#include "dtetlib.h"
#include "sigsafe.h"
/*
** tet_exit() - log off all servers and exit
*/
TET_IMPORT TET_NORETURN void tet_exit(int status)
{
tet_logoff();
exit(status);
}
/*
** tet_logoff() - log off all servers and close their connections
*/
TET_IMPORT void tet_logoff()
{
#ifndef TET_LITE /* -START-LITE-CUT- */
register struct ptab *pp;
extern struct ptab *tet_ptab;
TET_SIGSAFE_DEF
API_LOCK;
while (tet_ptab) {
pp = tet_ptab;
TET_SIGSAFE_START;
tet_ti_logoff(pp, 0);
tet_ptrm(pp);
tet_ptfree(pp);
TET_SIGSAFE_END;
}
tet_sdlogoff(0);
tet_xdlogoff();
tet_ts_cleanup();
API_UNLOCK;
#endif /* -END-LITE-CUT- */
}
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