Re: using sendfile on MMAP'd buckets

[William A. Rowe, Jr.]

From: "Justin Erenkrantz" <[EMAIL PROTECTED]>
>
> My $.02 - with Solaris's sendfilev, it can take in a -1 (FD_SELF or
> something like that) for the file descriptor which means that you 
> should read starting at the offset location from your memory space.  
> I have comments in the Solaris-specific code in APR about this.

This is badness.  Combine sendfile, caching, and other opimizations such
as reading segments of typemap files or byteranges, and we blow up by
attempting to use the same fd across threads.