XSLTPUBFUN void* XSLTCALL xsltGetExtData	(	xsltTransformContextPtr	ctxt,
		const xmlChar *	URI
	)

xsltGetExtData: : an XSLT transformation context : the URI associated to the exension module

Retrieve the data associated to the extension module in this given transformation.

Returns the pointer or NULL if not present

Definition at line 862 of file extensions.c.

Referenced by xsltExtElementTest(), and xsltExtFunctionTest().

{
    xsltExtDataPtr data;

    if ((ctxt == NULL) || (URI == NULL))
        return (NULL);
    if (ctxt->extInfos == NULL) {
        ctxt->extInfos = xmlHashCreate(10);
        if (ctxt->extInfos == NULL)
            return (NULL);
        data = NULL;
    } else {
        data = (xsltExtDataPtr) xmlHashLookup(ctxt->extInfos, URI);
    }
    if (data == NULL) {
        void *extData;
        xsltExtModulePtr module;

        xmlMutexLock(xsltExtMutex);

        module = xmlHashLookup(xsltExtensionsHash, URI);

        xmlMutexUnlock(xsltExtMutex);

        if (module == NULL) {
#ifdef WITH_XSLT_DEBUG_EXTENSIONS
            xsltGenericDebug(xsltGenericDebugContext,
                             "Not registered extension module: %s\n", URI);
#endif
            return (NULL);
        } else {
            if (module->initFunc == NULL)
                return (NULL);

#ifdef WITH_XSLT_DEBUG_EXTENSIONS
            xsltGenericDebug(xsltGenericDebugContext,
                             "Initializing module: %s\n", URI);
#endif

            extData = module->initFunc(ctxt, URI);
            if (extData == NULL)
                return (NULL);

            data = xsltNewExtData(module, extData);
            if (data == NULL)
                return (NULL);
            if (xmlHashAddEntry(ctxt->extInfos, URI, (void *) data) < 0) {
                xsltTransformError(ctxt, NULL, NULL,
                                   "Failed to register module data: %s\n",
                                   URI);
                if (module->shutdownFunc)
                    module->shutdownFunc(ctxt, URI, extData);
                xsltFreeExtData(data);
                return (NULL);
            }
        }
    }
    return (data->extData);
}

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