Flush at exit

[vopl]

Flushing all buffered data during the static deinitialization phase.

[rm5248]

Shouldn't LogManager::shutdown do the proper flushing of data? Or does that not work under certain situations?

[vopl]

Shouldn't LogManager::shutdown do the proper flushing of data? Or does that not work under certain situations?

LogManager::shutdown terminates logger functionality, but this case about events-at-exit, in which all logger functionality should continue to work

[swebb2066]

Perhaps you also could include SocketOutputStream and ODBCAppender?

[vopl]

I can't support SocketOutputStream, it doesn't have enough internal infrastructure for flushing, in particular, there is no apr-Pool instance, which is placed in more derived types. (It's not actually used for flushing, but I don't able to make a second layer of stubs)

[swebb2066]

I can't support SocketOutputStream

OK, but as XMLSocketAppender calls flush() in each append(), I suggest the change XMLSocketAppender is not required.