Author :
Azat Khuzhin
Date :
2014-11-21 09:00:12
Hash :f133b869 Message :be async: avoid double close()
In case when between this two close (close(F), close(F)) some open()
will be executed, than we will close newly opened fd.
Reported-by: xujiezhige@163.com
Azat Khuzhin