347 lines
7.8 KiB
C
347 lines
7.8 KiB
C
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $TOG: SmError.c /main/5 1998/10/26 17:20:29 mgreess $ */
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/* *
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* (c) Copyright 1993, 1994 Hewlett-Packard Company *
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* (c) Copyright 1993, 1994 International Business Machines Corp. *
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* (c) Copyright 1993, 1994 Sun Microsystems, Inc. *
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* (c) Copyright 1993, 1994 Novell, Inc. *
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*/
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/*************************************<+>*************************************
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*****************************************************************************
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**
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** File: SmError.c
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**
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** Project: HP DT Session Manager (dtsession)
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**
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** Description:
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** -----------
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** This file contains all session manager error functions. The session
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** manager traps all errors from the toolkit and server, and takes action
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** depending on the type of the error.
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**
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**
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**
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*******************************************************************
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** (c) Copyright Hewlett-Packard Company, 1990. All rights are
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** reserved. Copying or other reproduction of this program
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** except for archival purposes is prohibited without prior
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** written consent of Hewlett-Packard Company.
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********************************************************************
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**
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**
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**
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*****************************************************************************
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*************************************<+>*************************************/
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#include <stdio.h>
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#ifdef _SUN_OS
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#include <string.h>
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#endif
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#include <X11/Intrinsic.h>
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#include <Dt/UserMsg.h>
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#include "Sm.h"
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#include "SmError.h"
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#include "SmGlobals.h"
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/*
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* Global variables
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*/
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NlsStrings smNLS;
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/*
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* Local functions
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*/
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static int LibError( Display *, XErrorEvent *) ;
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static int LibIOError( void ) ;
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static void ToolkitWarning( char *) ;
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static void ToolkitError( char *) __attribute__((noreturn)) ;
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/*************************************<->*************************************
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*
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* InitErrorHandler ()
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*
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*
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* Description:
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* -----------
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* Initialize all error handlers for use with the session manager
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* session manager should only exit on real severe conditions.
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* it should try to gracefully recover on the rest.
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*
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*
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* Inputs:
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* ------
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*
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*
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* Outputs:
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* -------
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*
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*
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* Comments:
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* --------
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*
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*************************************<->***********************************/
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void
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InitErrorHandler( void )
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{
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XSetErrorHandler(LibError);
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XSetIOErrorHandler( (IOErrorHandlerProc) LibIOError);
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XtSetWarningHandler(ToolkitWarning);
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XtSetErrorHandler(ToolkitError);
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}
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/*************************************<->*************************************
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*
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* LibError (display, errorEvent)
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*
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*
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* Description:
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* -----------
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* X error handler. Takes care of X errors so that the server will
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* not terminate the session manager on any error.
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*
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*
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* Inputs:
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* ------
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* errorEvent = pointer to error event returned by the server.
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*
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*
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* Outputs:
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* -------
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*
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* Comments:
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* --------
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*
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*************************************<->***********************************/
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static int
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LibError(
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Display *display,
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XErrorEvent *errorEvent )
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{
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#ifdef DEBUG
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switch (errorEvent->error_code)
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{
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case Success:
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break;
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case BadAccess:
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PrintError(DtError, BAD_ACCESS);
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break;
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case BadAtom:
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PrintError(DtError, BAD_ATOM);
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break;
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case BadDrawable:
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PrintError(DtError, BAD_DRAWABLE);
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break;
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case BadMatch:
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PrintError(DtError, BAD_MATCH);
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break;
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case BadValue:
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PrintError(DtError, BAD_VALUE);
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break;
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case BadWindow:
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PrintError(DtError, BAD_WINDOW);
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break;
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default:
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PrintError(DtError, DEFAULT_ERROR);
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break;
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}
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#endif /*DEBUG*/
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return 0;
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}
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/*************************************<->*************************************
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*
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* LibIOError ()
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*
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*
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* Description:
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* -----------
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* IO error handler. In charge of handling IO events from the
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* X server
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*
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*
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* Inputs:
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* ------
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*
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*
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* Outputs:
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* -------
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*
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* Comments:
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* --------
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*
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*************************************<->***********************************/
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static int
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LibIOError( void )
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{
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PrintError(DtError, GETMESSAGE(8, 1, "Connection to server lost - exiting."));
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SM_EXIT(-1);
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return 0;
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}
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/*************************************<->*************************************
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*
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* ToolkitWarning (message)
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*
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*
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* Description:
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* -----------
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* Handles all toolkit warnings
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*
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*
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* Inputs:
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* ------
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* message = error message sent by toolkit
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*
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*
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* Outputs:
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* -------
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*
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* Comments:
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* --------
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*
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*************************************<->***********************************/
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static void
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ToolkitWarning(
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char *message )
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{
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#ifdef DEBUG
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PrintError(DtError, message);
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#endif /*DEBUG*/
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}
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/*************************************<->*************************************
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*
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* ToolkitError (message)
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*
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*
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* Description:
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* -----------
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* Handles all toolkit errors
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*
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*
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* Inputs:
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* ------
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* message = error message sent by toolkit
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*
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*
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* Outputs:
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* -------
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*
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* Comments:
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* --------
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*
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* Xt assumes the client will exit when an XtError is generated
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* so we must exit since the state will be undefined if we
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* continue
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*
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*
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*************************************<->***********************************/
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static void
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ToolkitError(
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char *message )
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{
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PrintError(DtError, message);
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SM_EXIT(-1);
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}
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/*************************************<->*************************************
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*
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* PrintError (severity, help)
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*
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*
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* Description:
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* -----------
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* Handles the printing of all session manager errors using the dt API
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* These are simple errors that don't set errno
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*
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*
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* Inputs:
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* ------
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* severity = severity of the error
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* help = help message to user (what type of error)
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*
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*
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* Outputs:
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* -------
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*
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* Comments:
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* --------
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* WARNING: Currently the va_alist parameter is not used in the
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* DtSimpleError is not used
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*
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*************************************<->***********************************/
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void
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PrintError(
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DtSeverity severity,
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char *help )
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{
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_DtSimpleError(DtProgName, severity, NULL, "%.2000s", help);
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}
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/*************************************<->*************************************
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*
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* PrintErrnoError (severity, help)
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*
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*
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* Description:
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* -----------
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* Handles the printing of all session manager errors using the dt API
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* These are simple errors that set errno
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*
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*
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* Inputs:
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* ------
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* severity = severity of the error
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* help = help message to user (what type of error)
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*
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*
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* Outputs:
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* -------
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*
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* Comments:
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* --------
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* WARNING: Currently the va_alist parameter is not used in the
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* DtSimpleErrnoError is not used
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*
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*************************************<->***********************************/
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void
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PrintErrnoError(
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DtSeverity severity,
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char *help )
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{
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_DtSimpleErrnoError(DtProgName, severity, NULL, "%s", help);
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}
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