1 files changed, 0 insertions, 291 deletions
diff --git a/tk8.6/generic/tkError.c b/tk8.6/generic/tkError.c
deleted file mode 100644
index fc223e6..0000000
--- a/tk8.6/generic/tkError.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * tkError.c --
- *
- *	This file provides a high-performance mechanism for selectively
- *	dealing with errors that occur in talking to the X server. This is
- *	useful, for example, when communicating with a window that may not
- *	exist.
- *
- * Copyright (c) 1990-1994 The Regents of the University of California.
- * Copyright (c) 1994-1995 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution of
- * this file, and for a DISCLAIMER OF ALL WARRANTIES.
- */
-
-#include "tkInt.h"
-
-/*
- * The default X error handler gets saved here, so that it can be invoked if
- * an error occurs that we can't handle.
- */
-
-typedef int (*TkXErrorHandler)(Display *display, XErrorEvent *eventPtr);
-static TkXErrorHandler	defaultHandler = NULL;
-
-/*
- * Forward references to procedures declared later in this file:
- */
-
-static int	ErrorProc(Display *display, XErrorEvent *errEventPtr);
-
-/*
- *--------------------------------------------------------------
- *
- * Tk_CreateErrorHandler --
- *
- *	Arrange for all a given procedure to be invoked whenever certain
- *	errors occur.
- *
- * Results:
- *	The return value is a token identifying the handler; it must be passed
- *	to Tk_DeleteErrorHandler to delete the handler.
- *
- * Side effects:
- *	If an X error occurs that matches the error, request, and minor
- *	arguments, then errorProc will be invoked. ErrorProc should have the
- *	following structure:
- *
- *	int
- *	errorProc(caddr_t clientData, XErrorEvent *errorEventPtr) {
- *	}
- *
- *	The clientData argument will be the same as the clientData argument to
- *	this procedure, and errorEvent will describe the error. If errorProc
- *	returns 0, it means that it completely "handled" the error: no further
- *	processing should be done. If errorProc returns 1, it means that it
- *	didn't know how to deal with the error, so we should look for other
- *	error handlers, or invoke the default error handler if no other
- *	handler returns zero. Handlers are invoked in order of age: youngest
- *	handler first.
- *
- *	Note: errorProc will only be called for errors associated with X
- *	requests made AFTER this call, but BEFORE the handler is deleted by
- *	calling Tk_DeleteErrorHandler.
- *
- *--------------------------------------------------------------
- */
-
-Tk_ErrorHandler
-Tk_CreateErrorHandler(
-    Display *display,		/* Display for which to handle errors. */
-    int error,			/* Consider only errors with this error_code
-				 * (-1 means consider all errors). */
-    int request,		/* Consider only errors with this major
-				 * request code (-1 means consider all major
-				 * codes). */
-    int minorCode,		/* Consider only errors with this minor
-				 * request code (-1 means consider all minor
-				 * codes). */
-    Tk_ErrorProc *errorProc,	/* Procedure to invoke when a matching error
-				 * occurs. NULL means just ignore matching
-				 * errors. */
-    ClientData clientData)	/* Arbitrary value to pass to errorProc. */
-{
-    register TkErrorHandler *errorPtr;
-    register TkDisplay *dispPtr;
-
-    /*
-     * Find the display. If Tk doesn't know about this display then it's an
-     * error: panic.
-     */
-
-    dispPtr = TkGetDisplay(display);
-    if (dispPtr == NULL) {
-	Tcl_Panic("Unknown display passed to Tk_CreateErrorHandler");
-    }
-
-    /*
-     * Make sure that X calls us whenever errors occur.
-     */
-
-    if (defaultHandler == NULL) {
-	defaultHandler = XSetErrorHandler(ErrorProc);
-    }
-
-    /*
-     * Create the handler record.
-     */
-
-    errorPtr = ckalloc(sizeof(TkErrorHandler));
-    errorPtr->dispPtr = dispPtr;
-    errorPtr->firstRequest = NextRequest(display);
-    errorPtr->lastRequest = (unsigned) -1;
-    errorPtr->error = error;
-    errorPtr->request = request;
-    errorPtr->minorCode = minorCode;
-    errorPtr->errorProc = errorProc;
-    errorPtr->clientData = clientData;
-    errorPtr->nextPtr = dispPtr->errorPtr;
-    dispPtr->errorPtr = errorPtr;
-
-    return (Tk_ErrorHandler) errorPtr;
-}
-
-/*
- *--------------------------------------------------------------
- *
- * Tk_DeleteErrorHandler --
- *
- *	Do not use an error handler anymore.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	The handler denoted by the "handler" argument will not be invoked for
- *	any X errors associated with requests made after this call. However,
- *	if errors arrive later for requests made BEFORE this call, then the
- *	handler will still be invoked. Call XSync if you want to be sure that
- *	all outstanding errors have been received and processed.
- *
- *--------------------------------------------------------------
- */
-
-void
-Tk_DeleteErrorHandler(
-    Tk_ErrorHandler handler)	/* Token for handler to delete; was previous
-				 * return value from Tk_CreateErrorHandler. */
-{
-    register TkErrorHandler *errorPtr = (TkErrorHandler *) handler;
-    register TkDisplay *dispPtr = errorPtr->dispPtr;
-
-    errorPtr->lastRequest = NextRequest(dispPtr->display) - 1;
-
-    /*
-     * Every once-in-a-while, cleanup handlers that are no longer active. We
-     * probably won't be able to free the handler that was just deleted (need
-     * to wait for any outstanding requests to be processed by server), but
-     * there may be previously-deleted handlers that are now ready for garbage
-     * collection. To reduce the cost of the cleanup, let a few dead handlers
-     * pile up, then clean them all at once. This adds a bit of overhead to
-     * errors that might occur while the dead handlers are hanging around, but
-     * reduces the overhead of scanning the list to clean up (particularly if
-     * there are many handlers that stay around forever).
-     */
-
-    dispPtr->deleteCount += 1;
-    if (dispPtr->deleteCount >= 10) {
-	register TkErrorHandler *prevPtr;
-	TkErrorHandler *nextPtr;
-	int lastSerial;
-
-	dispPtr->deleteCount = 0;
-	lastSerial = LastKnownRequestProcessed(dispPtr->display);
-	errorPtr = dispPtr->errorPtr;
-	for (prevPtr = NULL; errorPtr != NULL; errorPtr = nextPtr) {
-	    nextPtr = errorPtr->nextPtr;
-	    if ((errorPtr->lastRequest != (unsigned long) -1)
-		    && (errorPtr->lastRequest <= (unsigned long) lastSerial)) {
-		if (prevPtr == NULL) {
-		    dispPtr->errorPtr = nextPtr;
-		} else {
-		    prevPtr->nextPtr = nextPtr;
-		}
-		ckfree(errorPtr);
-		continue;
-	    }
-	    prevPtr = errorPtr;
-	}
-    }
-}
-
-/*
- *--------------------------------------------------------------
- *
- * ErrorProc --
- *
- *	This procedure is invoked by the X system when error events arrive.
- *
- * Results:
- *	If it returns, the return value is zero. However, it is possible that
- *	one of the error handlers may just exit.
- *
- * Side effects:
- *	This procedure does two things. First, it uses the serial # in the
- *	error event to eliminate handlers whose expiration serials are now in
- *	the past. Second, it invokes any handlers that want to deal with the
- *	error.
- *
- *--------------------------------------------------------------
- */
-
-static int
-ErrorProc(
-    Display *display,		/* Display for which error occurred. */
-    register XErrorEvent *errEventPtr)
-				/* Information about error. */
-{
-    register TkDisplay *dispPtr;
-    register TkErrorHandler *errorPtr;
-
-    /*
-     * See if we know anything about the display. If not, then invoke the
-     * default error handler.
-     */
-
-    dispPtr = TkGetDisplay(display);
-    if (dispPtr == NULL) {
-	goto couldntHandle;
-    }
-
-    /*
-     * Otherwise invoke any relevant handlers for the error, in order.
-     */
-
-    for (errorPtr = dispPtr->errorPtr; errorPtr != NULL;
-	    errorPtr = errorPtr->nextPtr) {
-	if ((errorPtr->firstRequest > errEventPtr->serial)
-		|| ((errorPtr->error != -1)
-		    && (errorPtr->error != errEventPtr->error_code))
-		|| ((errorPtr->request != -1)
-		    && (errorPtr->request != errEventPtr->request_code))
-		|| ((errorPtr->minorCode != -1)
-		    && (errorPtr->minorCode != errEventPtr->minor_code))
-		|| ((errorPtr->lastRequest != (unsigned long) -1)
-		    && (errorPtr->lastRequest < errEventPtr->serial))) {
-	    continue;
-	}
-	if (errorPtr->errorProc == NULL ||
-		errorPtr->errorProc(errorPtr->clientData, errEventPtr) == 0) {
-	    return 0;
-	}
-    }
-
-    /*
-     * See if the error is a BadWindow error. If so, and it refers to a window
-     * that still exists in our window table, then ignore the error. Errors
-     * like this can occur if a window owned by us is deleted by someone
-     * externally, like a window manager. We'll ignore the errors at least
-     * long enough to clean up internally and remove the entry from the window
-     * table.
-     *
-     * NOTE: For embedding, we must also check whether the window was recently
-     * deleted. If so, it may be that Tk generated operations on windows that
-     * were deleted by the container. Now we are getting the errors
-     * (BadWindow) after Tk already deleted the window itself.
-     */
-
-    if (errEventPtr->error_code == BadWindow) {
-	Window w = (Window) errEventPtr->resourceid;
-
-	if (Tk_IdToWindow(display, w) != NULL) {
-	    return 0;
-	}
-    }
-
-    /*
-     * We couldn't handle the error. Use the default handler.
-     */
-
-  couldntHandle:
-    return defaultHandler(display, errEventPtr);
-}
-
-/*
- * Local Variables:
- * mode: c
- * c-basic-offset: 4
- * fill-column: 78
- * End:
- */