Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtsession/SmError.c

@@ -0,0 +1,324 @@
+/* $TOG: SmError.c /main/5 1998/10/26 17:20:29 mgreess $ */
+/*                                                                      *
+ * (c) Copyright 1993, 1994 Hewlett-Packard Company                     *
+ * (c) Copyright 1993, 1994 International Business Machines Corp.       *
+ * (c) Copyright 1993, 1994 Sun Microsystems, Inc.                      *
+ * (c) Copyright 1993, 1994 Novell, Inc.                                *
+ */
+/*************************************<+>*************************************
+ *****************************************************************************
+ **
+ **  File:        SmError.c
+ **
+ **  Project:     HP DT Session Manager (dtsession)
+ **
+ **  Description:
+ **  -----------
+ **  This file contains all session manager error functions.  The session
+ **  manager traps all errors from the toolkit and server, and takes action
+ **  depending on the type of the error.
+ **
+ **
+ **
+ *******************************************************************
+ **  (c) Copyright Hewlett-Packard Company, 1990.  All rights are  
+ **  reserved.  Copying or other reproduction of this program      
+ **  except for archival purposes is prohibited without prior      
+ **  written consent of Hewlett-Packard Company.		     
+ ********************************************************************
+ **
+ **
+ **
+ *****************************************************************************
+ *************************************<+>*************************************/
+
+#include <stdio.h>
+#ifdef _SUN_OS
+#include <string.h>
+#endif
+#include <X11/Intrinsic.h>
+#include <Dt/UserMsg.h>
+#include "Sm.h"
+#include "SmError.h"
+#include "SmGlobals.h"
+
+
+/*
+ * Global variables
+ */
+NlsStrings   		smNLS;
+
+/*
+ * Local functions
+ */
+
+static int LibError( Display *, XErrorEvent *) ;
+static int LibIOError( void ) ;
+static void ToolkitWarning( char *) ;
+static void ToolkitError( char *) ;
+
+
+
+/*************************************<->*************************************
+ *
+ *  InitErrorHandler ()
+ *
+ *
+ *  Description:
+ *  -----------
+ *  Initialize all error handlers for use with the session manager
+ *  session manager should only exit on real severe conditions.
+ *  it should try to gracefully recover on the rest.
+ *
+ *
+ *  Inputs:
+ *  ------
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *
+ *  Comments:
+ *  --------
+ * 
+ *************************************<->***********************************/
+void 
+InitErrorHandler( void )
+{
+    XSetErrorHandler(LibError);
+    XSetIOErrorHandler( (IOErrorHandlerProc) LibIOError);
+    XtSetWarningHandler(ToolkitWarning);
+    XtSetErrorHandler(ToolkitError);
+}
+
+
+/*************************************<->*************************************
+ *
+ *  LibError (display, errorEvent)
+ *
+ *
+ *  Description:
+ *  -----------
+ *  X error handler.  Takes care of X errors so that the server will
+ *  not terminate the session manager on any error.
+ *
+ *
+ *  Inputs:
+ *  ------
+ *  errorEvent = pointer to error event returned by the server.
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *  Comments:
+ *  --------
+ * 
+ *************************************<->***********************************/
+static int 
+LibError(
+        Display *display,
+        XErrorEvent *errorEvent )
+{
+#ifdef DEBUG
+    switch (errorEvent->error_code)
+    {
+      case Success:
+	break;
+      case BadAccess:
+	PrintError(DtError, BAD_ACCESS);
+	break;
+      case BadAtom:
+	PrintError(DtError, BAD_ATOM);	
+	break;
+      case BadDrawable:
+	PrintError(DtError, BAD_DRAWABLE);
+	break;
+      case BadMatch:
+	PrintError(DtError, BAD_MATCH);
+	break;
+      case BadValue:
+	PrintError(DtError, BAD_VALUE);
+	break;
+      case BadWindow:
+	PrintError(DtError, BAD_WINDOW);
+	break;
+      default:
+	PrintError(DtError, DEFAULT_ERROR);
+	break;
+    }
+#endif /*DEBUG*/
+    return 0;
+}
+
+
+/*************************************<->*************************************
+ *
+ *  LibIOError ()
+ *
+ *
+ *  Description:
+ *  -----------
+ *  IO error handler.  In charge of handling IO events from the
+ *  X server
+ *
+ *
+ *  Inputs:
+ *  ------
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *  Comments:
+ *  --------
+ * 
+ *************************************<->***********************************/
+static int 
+LibIOError( void )
+{
+    PrintError(DtError, GETMESSAGE(8, 1, "Connection to server lost - exiting."));
+    SM_EXIT(-1);
+    return 0;
+}
+
+
+/*************************************<->*************************************
+ *
+ *  ToolkitWarning (message)
+ *
+ *
+ *  Description:
+ *  -----------
+ *  Handles all toolkit warnings
+ *
+ *
+ *  Inputs:
+ *  ------
+ *  message = error message sent by toolkit
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *  Comments:
+ *  --------
+ * 
+ *************************************<->***********************************/
+static void 
+ToolkitWarning(
+        char *message )
+{
+#ifdef DEBUG
+    PrintError(DtError, message);
+#endif /*DEBUG*/    
+}
+
+
+
+/*************************************<->*************************************
+ *
+ *  ToolkitError (message)
+ *
+ *
+ *  Description:
+ *  -----------
+ *  Handles all toolkit errors
+ *
+ *
+ *  Inputs:
+ *  ------
+ *  message = error message sent by toolkit
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *  Comments:
+ *  --------
+ * 
+ *  Xt assumes the client will exit when an XtError is generated
+ *  so we must exit since the state will be undefined if we
+ *  continue
+ * 
+ * 
+ *************************************<->***********************************/
+static void 
+ToolkitError(
+        char *message )
+{
+
+    PrintError(DtError, message);
+    SM_EXIT(-1);
+}
+
+
+/*************************************<->*************************************
+ *
+ *  PrintError (severity, help)
+ *
+ *
+ *  Description:
+ *  -----------
+ *  Handles the printing of all session manager errors using the dt API
+ *  These are simple errors that don't set errno
+ *
+ *
+ *  Inputs:
+ *  ------
+ *  severity = severity of the error
+ *  help = help message to user (what type of error)
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *  Comments:
+ *  --------
+ *  WARNING: Currently the va_alist parameter is not used in the
+ *  DtSimpleError is not used
+ * 
+ *************************************<->***********************************/
+void 
+PrintError(
+        DtSeverity severity,
+        char *help )
+{
+    _DtSimpleError(DtProgName, severity, NULL, "%.2000s", help);
+}
+
+
+/*************************************<->*************************************
+ *
+ *  PrintErrnoError (severity, help)
+ *
+ *
+ *  Description:
+ *  -----------
+ *  Handles the printing of all session manager errors using the dt API
+ *  These are simple errors that set errno
+ *
+ *
+ *  Inputs:
+ *  ------
+ *  severity = severity of the error
+ *  help = help message to user (what type of error)
+ *
+ * 
+ *  Outputs:
+ *  -------
+ *
+ *  Comments:
+ *  --------
+ *  WARNING: Currently the va_alist parameter is not used in the
+ *  DtSimpleErrnoError is not used
+ * 
+ *************************************<->***********************************/
+void 
+PrintErrnoError(
+        DtSeverity severity,
+        char *help )
+{
+    _DtSimpleErrnoError(DtProgName, severity, NULL, "%s", help);
+}