On 7/13/21 6:32 PM, Dimitry Sibiryakov wrote:
Hello All.
Is doClean() supposed to be guaranteed to be called before plugin
library unloading process?
For Firebird 4 (current snapshot) in embedded I see that it is
called after some global variables of the library are already
destructed, i.e. it is either called from DLLMain or we have thread
races and shutdown thread is calling functions of already unloaded DLL.
excuse me if I'm missing something - many time has passed since I used
to work with this particular code
doClean() may be called for 2 reasons:
- Plugin Manager is going to unload your module, in this case all
globals should be OK
- your process called exit() and due to it plugin is going to be
unloaded, this fact is detected by dtor of UnloadDetectorHelper, which
also calls doClean, but in this case some globals may be already
destroyed, you need to manually control order of destruction in your
plugin to avoid this
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