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fixing bug #101602 for extension modules init and shutdown callbacks,

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* libxslt/extensions.c libxslt/transform.c: fixing bug #101602
  for extension modules init and shutdown callbacks, check that
  they are now called when needed.
* python/libxsl.py python/libxslt-python-api.xml python/libxslt.c:
  started adding the extension module support at the Python level.
  Still a strange bug to hunt down left.
Daniel
This commit is contained in:
Daniel Veillard
2003-01-13 22:28:34 +00:00
parent 21df755925
commit d932aafe73
7 changed files with 280 additions and 13 deletions
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197
python/libxslt.c
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@ -24,9 +24,10 @@
#endif
/* #define DEBUG */
/* #define DEBUG_XPATH */
#define DEBUG_XPATH */
/* #define DEBUG_ERROR */
/* #define DEBUG_MEMORY */
#define DEBUG_EXTENSIONS */
void initlibxsltmod(void);
@ -131,7 +132,7 @@ libxslt_xsltRegisterExtModuleFunction(PyObject *self ATTRIBUTE_UNUSED,
xmlChar *ns_uri;
PyObject *pyobj_f;
if (!PyArg_ParseTuple(args, (char *)"szO:registerXPathFunction",
if (!PyArg_ParseTuple(args, (char *)"szO:registerExtModuleFunction",
&name, &ns_uri, &pyobj_f))
return(NULL);
@ -409,6 +410,195 @@ libxslt_xsltRegisterErrorHandler(ATTRIBUTE_UNUSED PyObject * self,
return (py_retval);
}
/************************************************************************
* *
* Extension classes *
* *
************************************************************************/
static xmlHashTablePtr libxslt_extModuleClasses = NULL;
static void *
libxslt_xsltPythonExtModuleStyleInit(xsltStylesheetPtr style,
const xmlChar * URI) {
PyObject *result;
PyObject *class = NULL;
#ifdef DEBUG_EXTENSIONS
printf("libxslt_xsltPythonExtModuleStyleInit(%p, %s) called\n",
style, URI);
#endif
if ((style == NULL) || (URI == NULL))
return(NULL);
/*
* Find the function, it should be there it was there at lookup
*/
class = xmlHashLookup(libxslt_extModuleClasses, URI);
if (class == NULL) {
fprintf(stderr, "libxslt_xsltPythonExtModuleStyleInit: internal error %s not found !\n", URI);
return(NULL);
}
if (PyObject_HasAttrString(class, (char *) "_styleInit")) {
result = PyObject_CallMethod(class, (char *) "_styleInit",
(char *) "Os", libxslt_xsltStylesheetPtrWrap(style), URI);
}
return((void *)result);
}
static void
libxslt_xsltPythonExtModuleStyleShutdown(xsltStylesheetPtr style,
const xmlChar * URI, void *data) {
PyObject *class = NULL;
PyObject *result;
#ifdef DEBUG_EXTENSIONS
printf("libxslt_xsltPythonExtModuleStyleShutdown(%p, %s, %p) called\n",
style, URI, data);
#endif
if ((style == NULL) || (URI == NULL))
return;
/*
* Find the function, it should be there it was there at lookup
*/
class = xmlHashLookup(libxslt_extModuleClasses, URI);
if (class == NULL) {
fprintf(stderr, "libxslt_xsltPythonExtModuleStyleShutdown: internal error %s not found !\n", URI);
return(NULL);
}
if (PyObject_HasAttrString(class, (char *) "_styleShutdown")) {
result = PyObject_CallMethod(class, (char *) "_styleShutdown",
(char *) "OsO", libxslt_xsltStylesheetPtrWrap(style),
URI, (PyObject *) data);
Py_XDECREF(result);
Py_XDECREF((PyObject *)data);
}
}
static void *
libxslt_xsltPythonExtModuleCtxtInit(xsltTransformContextPtr ctxt,
const xmlChar * URI) {
PyObject *result;
PyObject *class = NULL;
#ifdef DEBUG_EXTENSIONS
printf("libxslt_xsltPythonExtModuleCtxtInit(%p, %s) called\n",
ctxt, URI);
#endif
if ((ctxt == NULL) || (URI == NULL))
return(NULL);
/*
* Find the function, it should be there it was there at lookup
*/
class = xmlHashLookup(libxslt_extModuleClasses, URI);
if (class == NULL) {
fprintf(stderr, "libxslt_xsltPythonExtModuleCtxtInit: internal error %s not found !\n", URI);
return(NULL);
}
if (PyObject_HasAttrString(class, (char *) "_ctxtInit")) {
result = PyObject_CallMethod(class, (char *) "_ctxtInit",
(char *) "Os", libxslt_xsltTransformContextPtrWrap(ctxt),
URI);
}
return((void *)result);
}
static void
libxslt_xsltPythonExtModuleCtxtShutdown(xsltTransformContextPtr ctxt,
const xmlChar * URI, void *data) {
PyObject *class = NULL;
PyObject *result;
#ifdef DEBUG_EXTENSIONS
printf("libxslt_xsltPythonExtModuleCtxtShutdown(%p, %s, %p) called\n",
ctxt, URI, data);
#endif
if ((ctxt == NULL) || (URI == NULL))
return;
/*
* Find the function, it should be there it was there at lookup
*/
class = xmlHashLookup(libxslt_extModuleClasses, URI);
if (class == NULL) {
fprintf(stderr, "libxslt_xsltPythonExtModuleCtxtShutdown: internal error %s not found !\n", URI);
return(NULL);
}
if (PyObject_HasAttrString(class, (char *) "_ctxtShutdown")) {
result = PyObject_CallMethod(class, (char *) "_ctxtShutdown",
(char *) "OsO", libxslt_xsltTransformContextPtrWrap(ctxt),
URI, (PyObject *) data);
Py_XDECREF(result);
Py_XDECREF((PyObject *)data);
}
}
PyObject *
libxslt_xsltRegisterExtensionClass(PyObject *self ATTRIBUTE_UNUSED,
PyObject *args) {
PyObject *py_retval;
int ret = 0;
xmlChar *name;
xmlChar *ns_uri;
PyObject *pyobj_c;
if (!PyArg_ParseTuple(args, (char *)"zO:registerExtensionClass",
&ns_uri, &pyobj_c))
return(NULL);
if ((ns_uri == NULL) || (pyobj_c == NULL)) {
py_retval = libxml_intWrap(-1);
return(py_retval);
}
#ifdef DEBUG_EXTENSIONS
printf("libxslt_xsltRegisterExtensionClass(%s) called\n", ns_uri);
#endif
if (libxslt_extModuleClasses == NULL)
libxslt_extModuleClasses = xmlHashCreate(10);
if (libxslt_extModuleClasses == NULL) {
py_retval = libxml_intWrap(-1);
return(py_retval);
}
ret = xmlHashAddEntry(libxslt_extModuleClasses, ns_uri, pyobj_c);
if (ret != 0) {
py_retval = libxml_intWrap(-1);
return(py_retval);
}
Py_XINCREF(pyobj_c);
ret = xsltRegisterExtModuleFull(ns_uri,
(xsltExtInitFunction) libxslt_xsltPythonExtModuleCtxtInit,
(xsltExtShutdownFunction) libxslt_xsltPythonExtModuleCtxtShutdown,
(xsltStyleExtInitFunction) libxslt_xsltPythonExtModuleStyleInit,
(xsltStyleExtShutdownFunction) libxslt_xsltPythonExtModuleStyleShutdown);
py_retval = libxml_intWrap((int) ret);
if (ret < 0) {
Py_XDECREF(pyobj_c);
}
return(py_retval);
}
static void
deallocateClasse(void *payload, xmlChar *name ATTRIBUTE_UNUSED) {
PyObject *class = (PyObject *) payload;
#ifdef DEBUG_EXTENSIONS
printf("deallocateClasse(%s) called\n", name);
#endif
Py_XDECREF(class);
}
/************************************************************************
* *
* Integrated cleanup *
@ -422,6 +612,9 @@ libxslt_xsltCleanup(PyObject *self ATTRIBUTE_UNUSED,
if (libxslt_extModuleFunctions != NULL) {
xmlHashFree(libxslt_extModuleFunctions, deallocateCallback);
}
if (libxslt_extModuleClasses != NULL) {
xmlHashFree(libxslt_extModuleClasses, deallocateClasse);
}
xsltCleanupGlobals();
xmlCleanupParser();
Py_INCREF(Py_None);