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| -rw-r--r-- | Include/object.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Include/object.h b/Include/object.h index 4987e12..19460fe 100644 --- a/Include/object.h +++ b/Include/object.h @@ -706,6 +706,11 @@ mytype_dealloc(mytype *p) Py_TRASHCAN_SAFE_END(p) } +CAUTION: Never return from the middle of the body! If the body needs to +"get out early", put a label immediately before the Py_TRASHCAN_SAFE_END +call, and goto it. Else the call-depth counter (see below) will stay +above 0 forever, and the trashcan will never get emptied. + How it works: The BEGIN macro increments a call-depth counter. So long as this counter is small, the body of the deallocator is run directly without further ado. But if the counter gets large, it instead adds p to a list of |