Hi experts: In Xvfb implementation, the frame buffer is allocated with IPC_PRIVATE if uses SHM. Given that IPC_PRIVATE is just useful to parent/child process, and given X is a single process, I don't realize what is the use. Why not add a param which allows user pass a string to produce IPC key, and create share memory with the key, then other process will really access to the frame buffer. I think this will benefit many softwares, e.g. VNC, there is no need to write an individual X server, just do an extension hooks on Xvfb is OK.
Does anyone know the reason? is it for security? thank you. Wing
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