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List:       intermezzo-cvs
Subject:    CVS: intermezzo/lento/Lento/Bulk Desc.pm,1.42,1.43
From:       Phil Schwan <pschwan () users ! sourceforge ! net>
Date:       2001-09-20 18:21:51
[Download RAW message or body]

Update of /cvsroot/intermezzo/intermezzo/lento/Lento/Bulk
In directory usw-pr-cvs1:/tmp/cvs-serv23877/Lento/Bulk

Modified Files:
	Desc.pm 
Log Message:
(cvs bailed without saving the commit message, so my incredibly detailed
one is gone.  sigh.  subversion is self-hosting, you know)

Summary:
Enable data-on-demand by adding something like ``data_on_demand="1"''
to a fileset configuration.  During reintegration instead of initiating a
backfetch, we just create a sparse file.  When a sparse file is opened in a
fileset doing DOD, presto does a file_open upcall, which takes care of the
fetch at that time.

(I apologize for some of the more spurious whitespace changes, mostly of
the tabs-to-spaces variety.  I blame emacs, but I applaud its results. :)

lento:
- changed version number to 1.0.5.3

Lento/Fileset.pm:
- added data_on_demand flag
- if enabled, tell Presto about it at startup
 
Lento/Fsetdb.pm:
- abort if DOD is enabled, but fetchtype isn't rsync

Lento/Psdev.pm:
- added FSET_DATA_ON_DEMAND flag, a-la linux/intermezzo_fs.h
- added functions to set that flat
 
Lento/Bulk/Desc.pm:
- made a debug message slightly more informative

Lento/Filter/Upcall.pm:
- handle the new arguments to the file open upcall

Lento/InterMezzo/ReqHandler.pm:
- _start: store the request type and session, if any, on the heap for use in
completion
- finish: send a completion event to the sesion that initiated the request, if
desired
- BackFetch: renamed inodeinfo to pathinfo; pathinfo can now be either a scalar
with a relative pathname (in the upcall case) or a hash with the inode data
(in the backfetch case)

Lento/InterMezzo/UpcallHandler.pm:
- when we get a file open upcall, create a session to handle the fetchfile and
complete the upcall.  There's a fair amount of code duplication here, and it
makes me sad, but I have faith that this whole tangled reintegration mess will
get cleaned up very soon as we move to DAFS packets.

Lento/KML/ReintLento.pm:
- reint_close: if this is a DOD fileset instead of downloading the new file,
truncate at least one block to create a sparse file that will be handled at
open() time


Index: Desc.pm
===================================================================
RCS file: /cvsroot/intermezzo/intermezzo/lento/Lento/Bulk/Desc.pm,v
retrieving revision 1.42
retrieving revision 1.43
diff -U2 -r1.42 -r1.43
--- Desc.pm	2001/08/18 23:28:43	1.42
+++ Desc.pm	2001/09/20 18:21:49	1.43
@@ -323,5 +323,5 @@
     my $str;
 
-    $str = "Bulk Descriptor:\n";
+    $str = "Desc Bulk Descriptor:\n";
 
     if ($desc->iam_sink()) {
@@ -377,2 +377,4 @@
     return $str;
 }
+
+1;


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