[cfe-dev] What is the status of clang-based service architecture?

[Kosztka Imre Dávid]

Is this all information we have now
https://github.com/chandlerc/llvm-designs/blob/master/ClangService.rst?
Or are there other places where we can find more info?

I'm just trying to figure out where can I help.



2012/12/8 Douglas Gregor <dgregor at apple.com>

>
> On Dec 7, 2012, at 2:07 PM, Sean Silva <silvas at purdue.edu> wrote:
>
> >> Right. We need a virtual file system that can be shared among the
> various
> >> Clang instances executing within the service. All of Clang's filesystem
> >> operations should go through that virtual file system, which (obviously)
> >> needs to provide thread-safe access.
> >
> > Out of curiosity, is it feasible for clangd to just shepherd separate
> > processes for each instance that needs a different view of the
> > filesystem? Implementing a whole VFS just to run independent instances
> > inside the same process doesn't seem to make sense. I mean, the
> > separate instances aren't communicating, right?
>
>
> It's feasible, but it's necessarily useful. We want all of the
> compilation/syntax checking/etc. jobs to go into the same clangd server
> process so that we can start sharing resources, e.g., the underlying
> buffers for header files that are read by many different translation units.
> And we want to know when those buffers no longer reflect what's in disk or
> in the user's IDE, which may invalidate certain results that are cached in
> the service.
>
> clangd isn't about compiling a bunch of different translation units to
> object code through a server rather than separate processes, it's about
> having a stateful server that can answer questions like "what code
> completions are valid at foo.cpp:55:4?" efficiently from relatively dumb
> clients.
>
>         - Doug
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-- 
Name : Kosztka Imre Dávid
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