Hi, I'm not sure, what you want to know exactly about these classes. This is a file lock, so there can only exist one lock per file. Please formulate a more detailed question. Maybe I can help then.
Greetings Martin P.S: Is '二毛' your name? Am Dienstag, 14. November 2017, 16:57:44 CET schrieb 二毛: > I just read these two file's code, It seems there can only be a single lock > for each file.can someone explain this ?
