Author: Armin Rigo <ar...@tunes.org>
Branch: static-callback
Changeset: r2405:18f25e188dd4
Date: 2015-11-15 12:28 +0100
http://bitbucket.org/cffi/cffi/changeset/18f25e188dd4/

Log:    Must setup the threads also when using ffi.call_python(), not just
        ffi.callback().

diff --git a/c/_cffi_backend.c b/c/_cffi_backend.c
--- a/c/_cffi_backend.c
+++ b/c/_cffi_backend.c
@@ -5155,6 +5155,13 @@
     }
     infotuple = Py_BuildValue("OOOO", ct, ob, py_rawerr, onerror_ob);
     Py_DECREF(py_rawerr);
+
+#ifdef WITH_THREAD
+    /* We must setup the GIL here, in case the callback is invoked in
+       some other non-Pythonic thread.  This is the same as ctypes. */
+    PyEval_InitThreads();
+#endif
+
     return infotuple;
 }
 
@@ -5200,9 +5207,6 @@
         goto error;
     }
     assert(closure->user_data == infotuple);
-#ifdef WITH_THREAD
-    PyEval_InitThreads();
-#endif
     return (PyObject *)cd;
 
  error:
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