psycopg/psycopg2
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* psycopg/cursor_type.c (cursor_setup): incref before setting

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attributes, to make things GC-safe.

	* psycopg/cursor_int.c (curs_reset): make clearing of description
	and casts attributes GC-safe.
This commit is contained in:
James Henstridge 2008-05-28 17:45:37 +08:00
parent bbd101bb7e
commit 26693621ef
3 changed files with 15 additions and 5 deletions
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6
ChangeLog
View File

@ -1,5 +1,11 @@
2008-05-28 James Henstridge <james@jamesh.id.au>
* psycopg/cursor_type.c (cursor_setup): incref before setting
attributes, to make things GC-safe.
* psycopg/cursor_int.c (curs_reset): make clearing of description
and casts attributes GC-safe.
* psycopg/typecast.c (typecast_traverse): implement cyclic GC
traversal for typecasters.

8
psycopg/cursor_int.c
View File

@ -34,15 +34,19 @@
void
curs_reset(cursorObject *self)
{
PyObject *tmp;
/* initialize some variables to default values */
self->notuples = 1;
self->rowcount = -1;
self->row = 0;
Py_XDECREF(self->description);
tmp = self->description;
Py_INCREF(Py_None);
self->description = Py_None;
Py_XDECREF(tmp);
Py_XDECREF(self->casts);
tmp = self->casts;
self->casts = NULL;
Py_XDECREF(tmp);
}

6
psycopg/cursor_type.c
View File

@ -1590,8 +1590,8 @@ cursor_setup(cursorObject *self, connectionObject *conn, const char *name)
"argument 1 must be subclass of psycopg2._psycopg.connection");
return 1;
} */
Py_INCREF(conn);
self->conn = conn;
Py_INCREF((PyObject*)self->conn);
self->closed = 0;
self->mark = conn->mark;
@ -1607,6 +1607,7 @@ cursor_setup(cursorObject *self, connectionObject *conn, const char *name)
self->string_types = NULL;
self->binary_types = NULL;
Py_INCREF(Py_None);
self->description = Py_None;
Py_INCREF(Py_None);
self->pgstatus = Py_None;
@ -1614,11 +1615,10 @@ cursor_setup(cursorObject *self, connectionObject *conn, const char *name)
self->tuple_factory = Py_None;
Py_INCREF(Py_None);
self->query = Py_None;
Py_INCREF(Py_None);
/* default tzinfo factory */
Py_INCREF(pyPsycopgTzFixedOffsetTimezone);
self->tzinfo_factory = pyPsycopgTzFixedOffsetTimezone;
Py_INCREF(self->tzinfo_factory);
Dprintf("cursor_setup: good cursor object at %p, refcnt = "
FORMAT_CODE_PY_SSIZE_T,