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Make readers and writers participate in garbage collection. 

Fix memory leak in dialect_init().
This commit is contained in:
Jeremy Hylton 2003-04-14 02:20:55 +00:00
parent ae323198e5
commit 42a8aedb29
1 changed files with 71 additions and 14 deletions
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85
Modules/_csv.c
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@ -323,9 +323,9 @@ dialect_init(DialectObj * self, PyObject * args, PyObject * kwargs)
/* If dialect is a string, look it up in our registry */
if (PyString_Check(dialect)
#ifdef Py_USING_UNICODE
|| PyUnicode_Check(dialect)
|| PyUnicode_Check(dialect)
#endif
) {
) {
PyObject * new_dia;
new_dia = get_dialect_from_registry(dialect);
Py_DECREF(dialect);
@ -333,7 +333,7 @@ dialect_init(DialectObj * self, PyObject * args, PyObject * kwargs)
return -1;
dialect = new_dia;
}
/* A class rather than an instance? Instanciate */
/* A class rather than an instance? Instantiate */
if (PyObject_TypeCheck(dialect, &PyClass_Type)) {
PyObject * new_dia;
new_dia = PyObject_CallFunction(dialect, "");
@ -363,7 +363,9 @@ dialect_init(DialectObj * self, PyObject * args, PyObject * kwargs)
if (value_obj) {
if (PyObject_SetAttr((PyObject *)self,
name_obj, value_obj)) {
Py_DECREF(value_obj);
Py_DECREF(dir_list);
Py_DECREF(dialect);
return -1;
}
Py_DECREF(value_obj);
@ -442,7 +444,7 @@ static PyTypeObject Dialect_Type = {
(initproc)dialect_init, /* tp_init */
PyType_GenericAlloc, /* tp_alloc */
dialect_new, /* tp_new */
0, /* tp_free */
0, /* tp_free */
};
static void
@ -737,7 +739,35 @@ Reader_dealloc(ReaderObj *self)
Py_XDECREF(self->dialect);
Py_XDECREF(self->input_iter);
Py_XDECREF(self->fields);
PyMem_DEL(self);
PyObject_GC_Del(self);
}
static int
Reader_traverse(ReaderObj *self, visitproc visit, void *arg)
{
int err;
#define VISIT(SLOT) \
if (SLOT) { \
err = visit((PyObject *)(SLOT), arg); \
if (err) \
return err; \
}
VISIT(self->dialect);
VISIT(self->input_iter);
VISIT(self->fields);
return 0;
}
static int
Reader_clear(ReaderObj *self)
{
Py_XDECREF(self->dialect);
Py_XDECREF(self->input_iter);
Py_XDECREF(self->fields);
self->dialect = NULL;
self->input_iter = NULL;
self->fields = NULL;
return 0;
}
PyDoc_STRVAR(Reader_Type_doc,
@ -773,10 +803,11 @@ static PyTypeObject Reader_Type = {
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
Py_TPFLAGS_HAVE_GC, /*tp_flags*/
Reader_Type_doc, /*tp_doc*/
0, /*tp_traverse*/
0, /*tp_clear*/
(traverseproc)Reader_traverse, /*tp_traverse*/
(inquiry)Reader_clear, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
(getiterfunc)Reader_getiter, /*tp_iter*/
@ -791,7 +822,7 @@ static PyObject *
csv_reader(PyObject *module, PyObject *args, PyObject *keyword_args)
{
PyObject * iterator, * dialect = NULL, *ctor_args;
ReaderObj * self = PyObject_NEW(ReaderObj, &Reader_Type);
ReaderObj * self = PyObject_GC_New(ReaderObj, &Reader_Type);
if (!self)
return NULL;
@ -1160,7 +1191,32 @@ Writer_dealloc(WriterObj *self)
{
Py_XDECREF(self->dialect);
Py_XDECREF(self->writeline);
PyMem_DEL(self);
PyObject_GC_Del(self);
}
static int
Writer_traverse(WriterObj *self, visitproc visit, void *arg)
{
int err;
#define VISIT(SLOT) \
if (SLOT) { \
err = visit((PyObject *)(SLOT), arg); \
if (err) \
return err; \
}
VISIT(self->dialect);
VISIT(self->writeline);
return 0;
}
static int
Writer_clear(WriterObj *self)
{
Py_XDECREF(self->dialect);
Py_XDECREF(self->writeline);
self->dialect = NULL;
self->writeline = NULL;
return 0;
}
PyDoc_STRVAR(Writer_Type_doc,
@ -1192,10 +1248,11 @@ static PyTypeObject Writer_Type = {
0, /*tp_getattro*/
0, /*tp_setattro*/
0, /*tp_as_buffer*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
Py_TPFLAGS_HAVE_GC, /*tp_flags*/
Writer_Type_doc,
0, /*tp_traverse*/
0, /*tp_clear*/
(traverseproc)Writer_traverse, /*tp_traverse*/
(inquiry)Writer_clear, /*tp_clear*/
0, /*tp_richcompare*/
0, /*tp_weaklistoffset*/
(getiterfunc)0, /*tp_iter*/
@ -1209,7 +1266,7 @@ static PyObject *
csv_writer(PyObject *module, PyObject *args, PyObject *keyword_args)
{
PyObject * output_file, * dialect = NULL, *ctor_args;
WriterObj * self = PyObject_NEW(WriterObj, &Writer_Type);
WriterObj * self = PyObject_GC_New(WriterObj, &Writer_Type);
if (!self)
return NULL;