add user-modifiable recursion_limit
ceval.c:
define recurion_limit (static), default value is 2500
define Py_GetRecursionLimit and Py_SetRecursionLimit
raise RuntimeError if limit is exceeded
PC/config.h:
remove plat-specific definition
sysmodule.c:
add sys.(get|set)recursionlimit
diff --git a/Python/ceval.c b/Python/ceval.c
index b399b63..7e11250 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -298,6 +298,20 @@
}
+/* The interpreter's recursion limit */
+
+static int recursion_limit = 2500;
+
+int Py_GetRecursionLimit(void)
+{
+ return recursion_limit;
+}
+
+void Py_SetRecursionLimit(int new_limit)
+{
+ recursion_limit = new_limit;
+}
+
/* Status code for main loop (reason for stack unwind) */
enum why_code {
@@ -326,10 +340,6 @@
/* Interpreter main loop */
-#ifndef MAX_RECURSION_DEPTH
-#define MAX_RECURSION_DEPTH 10000
-#endif
-
static PyObject *
eval_code2(PyCodeObject *co, PyObject *globals, PyObject *locals,
PyObject **args, int argcount, PyObject **kws, int kwcount,
@@ -565,7 +575,7 @@
}
}
- if (++tstate->recursion_depth > MAX_RECURSION_DEPTH) {
+ if (++tstate->recursion_depth > recursion_limit) {
--tstate->recursion_depth;
PyErr_SetString(PyExc_RuntimeError,
"Maximum recursion depth exceeded");