[Samba] What's the difference between source3 and source4 in samba? How to use an asynchronous file system?

[withlog at yahoo.com]

 Hi, list,     I recently begin to study samba source code. Now I have some questions to ask. Can you give me some help?     The first question is what the relationship between samba versions(such as 3.x.x , 4.x.x) and samba3/samba4. In samba source code, I find two directories, souce3 and soure4. Do they mean  samba3 and samba4?  Actually, almost all docs in samba are about samba3, where to find docs about samba4?     The second question is how to use an asynchronous file system interface in samba? Actually we develop a new file system. But in our system, synchronous interfaces worked poorly, so we begin to use  asynchronous  interfaces. I only find this case in source4. Is that right?  Someone said source4 will be deprecated. Is this true?
thanks!Best regards!
11th,July

Sent from Yahoo Mail. Get the app