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authorMax BĂ©langer <aeromax@gmail.com>2018-09-11 16:14:00 -0700
committerBenjamin Peterson <benjamin@python.org>2018-09-11 16:14:00 -0700
commit4859ba0d2ce4506fddc3f55f90f8dce031b3804f (patch)
treeae9ce3fc1f6308038166e017df148db9621c697f
parentec014a101a7f6243b95dfc08acfe1542b9fa5d39 (diff)
downloadcpython-git-4859ba0d2ce4506fddc3f55f90f8dce031b3804f.tar.gz
closes bpo-31903: Release the GIL when calling into SystemConfiguration (GH-4178)
-rw-r--r--Misc/NEWS.d/next/macOS/2017-11-01-16-53-12.bpo-31903.K6jCVG.rst2
-rw-r--r--Modules/_scproxy.c6
2 files changed, 8 insertions, 0 deletions
diff --git a/Misc/NEWS.d/next/macOS/2017-11-01-16-53-12.bpo-31903.K6jCVG.rst b/Misc/NEWS.d/next/macOS/2017-11-01-16-53-12.bpo-31903.K6jCVG.rst
new file mode 100644
index 0000000000..3788112cd7
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2017-11-01-16-53-12.bpo-31903.K6jCVG.rst
@@ -0,0 +1,2 @@
+In :mod:`_scproxy`, drop the GIL when calling into ``SystemConfiguration`` to avoid
+deadlocks.
diff --git a/Modules/_scproxy.c b/Modules/_scproxy.c
index 8861dc456d..dbee3f7367 100644
--- a/Modules/_scproxy.c
+++ b/Modules/_scproxy.c
@@ -62,7 +62,10 @@ get_proxy_settings(PyObject* Py_UNUSED(mod), PyObject *Py_UNUSED(ignored))
PyObject* v;
int r;
+ Py_BEGIN_ALLOW_THREADS
proxyDict = SCDynamicStoreCopyProxies(NULL);
+ Py_END_ALLOW_THREADS
+
if (!proxyDict) {
Py_RETURN_NONE;
}
@@ -172,7 +175,10 @@ get_proxies(PyObject* Py_UNUSED(mod), PyObject *Py_UNUSED(ignored))
int r;
CFDictionaryRef proxyDict = NULL;
+ Py_BEGIN_ALLOW_THREADS
proxyDict = SCDynamicStoreCopyProxies(NULL);
+ Py_END_ALLOW_THREADS
+
if (proxyDict == NULL) {
return PyDict_New();
}