Mercurial > cpython-lru_cache-weakref

diff Objects/stringobject.c @ 71:ac4522e99ca9 legacy-trunk

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Fixed resizestring() to work if reference tracing is turned on. The realloc() call would move the list head without fixing the pointers to in the the chain of allocated objects...
author Guido van Rossum <guido@python.org>
date Sun, 18 Nov 1990 17:30:23 +0000
parents 82c7bab78bb1
children 554ac659b2cb
line wrap: on
line diff
--- a/Objects/stringobject.c	Sun Nov 18 17:28:24 1990 +0000
+++ b/Objects/stringobject.c	Sun Nov 18 17:30:23 1990 +0000
@@ -296,24 +296,31 @@
 	object **pv;
 	int newsize;
 {
-	register stringobject *v;
-	v = (stringobject *) *pv;
+	register object *v;
+	register stringobject *sv;
+	v = *pv;
 	if (!is_stringobject(v) || v->ob_refcnt != 1) {
 		*pv = 0;
 		DECREF(v);
 		err_badcall();
 		return -1;
 	}
+	/* XXX UNREF/NEWREF interface should be more symmetrical */
+#ifdef TRACE_REFS
+	--ref_total;
+#endif
+	UNREF(v);
 	*pv = (object *)
 		realloc((char *)v,
 			sizeof(stringobject) + newsize * sizeof(char));
 	if (*pv == NULL) {
-		DECREF(v);
+		DEL(v);
 		err_nomem();
 		return -1;
 	}
-	v = (stringobject *) *pv;
-	v->ob_size = newsize;
-	v->ob_sval[newsize] = '\0';
+	NEWREF(*pv);
+	sv = (stringobject *) *pv;
+	sv->ob_size = newsize;
+	sv->ob_sval[newsize] = '\0';
 	return 0;
 }