RE: [DotGNU]Compressed IL binary support in pnet

[Thong (Tum) Nguyen]

Wow coolness >:D.  This would also be good for loading assemblies from
the net.

^Tum


> -----Original Message-----
> From: Rhys Weatherley [mailto:address@hidden
> Sent: Thursday, 28 August 2003 7:16 p.m.
> To: address@hidden
> Subject: [DotGNU]Compressed IL binary support in pnet
> 
> Hi all,
> 
> I've added code to the CVS version of pnet to support gzip-compressed
IL
> binaries.  The "zlib" library is used to decompress binaries on the
fly when
> they are loaded.  Compression is easy: just run "gzip" over your
binaries or
> pnetlib library assemblies.  On my system, it reduces the size of the
pnetlib
> libraries between a factor of 2 and 3 in size.
> 
> This feature is primarily intended for embedded systems, which
typically have
> constraints on the amount of flash that can be devoted to storing IL
> libraries such as "mscorlib.dll", "System.dll", "Xsharp.dll", etc.
But it
> could also be used with DGEE to compress the web service binaries.
> 
> There is an additional time and memory penalty involved in loading
compressed
> IL binaries, so this isn't recommended for desktop and server
libraries.  The
> mmap-based file loader in pnet is a lot more efficient, and should be
used if
> disk space isn't at a premium.
> 
> The library path lookup mechanism has been altered slightly to
accomodate
> gzip-compressed libraries.  It will first look for "foo.dll", and then
> "foo.dll.gz", in each directory along the usual search path.
> 
> You will need the development version of "zlib" installed on your
system, and
> will also need to re-run "./auto_gen.sh" before rebuilding pnet.  You
can get
> "zlib" from "http://www.gzip.org/zlib/"; or your favourite package
provider.
> 
> Cheers,
> 
> Rhys.
> 
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