Re: Fast access git-rev-list output: some OS knowledge required

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On 12/7/06, Andreas Ericsson <ae@xxxxxx> wrote:
Shawn Pearce wrote:
>
> Perhaps there is some fast IPC API supported by Qt that you could
> use to run the revision listing outside of the main UI process,
> to eliminate the bottlenecks you are seeing and remove the problems
> noted above?  One that doesn't involve reading from a pipe I mean...
>

Why not just fork() + exec() and read from the filedescriptor? You can
up the output buffer of the forked program to something suitable, which
means the OS will cache it for you until you copy it to a buffer in qgit
(i.e., read from the descriptor).


Please, what do you mean with "something suitable"? How can I redirect
the output to a memory buffer or to a file that the OS will cache
*until* I've copied it?

If I redirect to a 'normal' file, this will be flushed by OS after
some time, normally few seconds.

Could you please post links with examples/docs about this kind of
implementation?


Thanks
Marco
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