Destructor close #3278
Destructor close #3278
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… is called when the engine has not been shut down stafely with Close()
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Addresses Issue #3274 by providing a place, DestructorClose(), where engines can place warnings or other shutdown activity in the event that the engine destructor gets called while the engine is still open. The engines modified here specifically do not generally call Close() in the engine destructor because that can be a heavy-weight call. Rather they're printing warnings or doing lighter-weight things that are less likely to cause problems. For some of the engines, like file reader BP3/4/5 file readers, DestructorClose() does nothing because the destructor cleans up pretty much everything on its own. Other engines were already calling their own Close() functions in the destructor. This PR doesn't change that if so. Some engines haven't been fully investigated, so DestructorClose() is simply an empty function which can be filled in when an appropriate action is determined. |
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