[Python-checkins] cpython (merge 3.5 -> default): Issue 24374: Plug refleak in set_coroutine_wrapper
yury.selivanov
python-checkins at python.org
Thu Jun 4 16:20:01 CEST 2015
https://hg.python.org/cpython/rev/68f40b6448b9
changeset: 96511:68f40b6448b9
parent: 96509:f24cd8bc5250
parent: 96510:3f2bf0ff262c
user: Yury Selivanov <yselivanov at sprymix.com>
date: Thu Jun 04 10:17:25 2015 -0400
summary:
Issue 24374: Plug refleak in set_coroutine_wrapper
(Merge 3.5)
files:
Lib/test/test_coroutines.py | 4 +-
Python/ceval.c | 50 +++++++++---------------
2 files changed, 21 insertions(+), 33 deletions(-)
diff --git a/Lib/test/test_coroutines.py b/Lib/test/test_coroutines.py
--- a/Lib/test/test_coroutines.py
+++ b/Lib/test/test_coroutines.py
@@ -1006,10 +1006,10 @@
sys.set_coroutine_wrapper(wrapper)
try:
- with self.assertRaisesRegex(
+ with silence_coro_gc(), self.assertRaisesRegex(
RuntimeError,
"coroutine wrapper.*\.wrapper at 0x.*attempted to "
- "recursively wrap <coroutine.*\.wrap"):
+ "recursively wrap .* wrap .*"):
foo()
finally:
diff --git a/Python/ceval.c b/Python/ceval.c
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -146,8 +146,6 @@
static PyObject * unicode_concatenate(PyObject *, PyObject *,
PyFrameObject *, unsigned char *);
static PyObject * special_lookup(PyObject *, _Py_Identifier *);
-static PyObject * apply_coroutine_wrapper(PyObject *);
-
#define NAME_ERROR_MSG \
"name '%.200s' is not defined"
@@ -3923,6 +3921,18 @@
if (co->co_flags & CO_GENERATOR) {
PyObject *gen;
+ PyObject *coro_wrapper = tstate->coroutine_wrapper;
+ int is_coro = co->co_flags & (CO_COROUTINE | CO_ITERABLE_COROUTINE);
+
+ if (is_coro && tstate->in_coroutine_wrapper) {
+ assert(coro_wrapper != NULL);
+ PyErr_Format(PyExc_RuntimeError,
+ "coroutine wrapper %.200R attempted "
+ "to recursively wrap %.200R",
+ coro_wrapper,
+ co);
+ goto fail;
+ }
/* Don't need to keep the reference to f_back, it will be set
* when the generator is resumed. */
@@ -3936,8 +3946,13 @@
if (gen == NULL)
return NULL;
- if (co->co_flags & (CO_COROUTINE | CO_ITERABLE_COROUTINE))
- return apply_coroutine_wrapper(gen);
+ if (is_coro && coro_wrapper != NULL) {
+ PyObject *wrapped;
+ tstate->in_coroutine_wrapper = 1;
+ wrapped = PyObject_CallFunction(coro_wrapper, "N", gen);
+ tstate->in_coroutine_wrapper = 0;
+ return wrapped;
+ }
return gen;
}
@@ -5232,33 +5247,6 @@
return res;
}
-static PyObject *
-apply_coroutine_wrapper(PyObject *gen)
-{
- PyObject *wrapped;
- PyThreadState *tstate = PyThreadState_GET();
- PyObject *wrapper = tstate->coroutine_wrapper;
-
- if (tstate->in_coroutine_wrapper) {
- assert(wrapper != NULL);
- PyErr_Format(PyExc_RuntimeError,
- "coroutine wrapper %.200R attempted "
- "to recursively wrap %.200R",
- wrapper,
- gen);
- return NULL;
- }
-
- if (wrapper == NULL) {
- return gen;
- }
-
- tstate->in_coroutine_wrapper = 1;
- wrapped = PyObject_CallFunction(wrapper, "N", gen);
- tstate->in_coroutine_wrapper = 0;
- return wrapped;
-}
-
#ifdef DYNAMIC_EXECUTION_PROFILE
static PyObject *
--
Repository URL: https://hg.python.org/cpython
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