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DragonFly kernel List (threaded) for 2003-12
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Re: LibC status and others...

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 12 Dec 2003 15:45:39 -0800 (PST)

:ibotty wrote:
:> as i reworked getpwent.c quite a bit, i found, that writing this
:> out-of-process, with a persistent buffer, is way easier.
:> besides being easier, access control is very much easier.
:> even /etc/passwd could be 0400 (or 0440, owned by root with group of the
:> daemon).
:Hooray for Unix philosophy.
:Is the daemon going to be listening on a Unix domain socket?

    No.  The idea is to use an IPC mechanism for that.  The problem with
    UNIX domain sockets is that it takes a lot of system calls to properly
    multi-thread requests coming in from multiple processes.  With a 
    dedicated IPC mechanism it becomes a lot easier because the kernel can
    aggregate all the requests and deal with security and other issues all
    at once.

					Matthew Dillon 

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