fix: avoid changing class outside of GIL

732bf88d · Henry Fredrick Schreiner · Henry Schreiner · dff9b3b4 · 732bf88d
Commit 732bf88d authored Jan 26, 2021 by Henry Fredrick Schreiner Committed by Henry Schreiner Jan 26, 2021
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include/pybind11/iostream.h
+3 -1

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--- a/include/pybind11/iostream.h
+++ b/include/pybind11/iostream.h
@@ -52,9 +52,11 @@ private:

                pywrite(line);
                pyflush();
+
+                // Placed inside gil_scoped_aquire as a mutex to avoid a race
+                setp(pbase(), epptr());
            }

-            setp(pbase(), epptr());
        }
        return 0;
    }