#19395: Raise exception when pickling a (BZ2|LZMA)(Compressor|Decompressor).

The underlying C libraries provide no mechanism for serializing compressor and
decompressor objects, so actually pickling these classes is impractical.
Previously, these objects would be pickled without error, but attempting to use
a deserialized instance would segfault the interpreter.

1 files changed, 1 insertions, 1 deletions

diff --git a/Python/condvar.h b/Python/condvar.h
index bbb40ba18e..e022dc7938 100644
--- a/Python/condvar.h
+++ b/Python/condvar.h
@@ -241,7 +241,7 @@ _PyCOND_WAIT_MS(PyCOND_T *cv, PyMUTEX_T *cs, DWORD ms)
      * but we are safe because we are using a semaphore wich has an internal
      * count.
      */
-    wait = WaitForSingleObject(cv->sem, ms);
+    wait = WaitForSingleObjectEx(cv->sem, ms, FALSE);
     PyMUTEX_LOCK(cs);
     if (wait != WAIT_OBJECT_0)
         --cv->waiting;