Revision: 14235
Author: adrian.chadd
Date: Wed Jul 22 20:30:09 2009
Log: Edited wiki page through web user interface.
http://code.google.com/p/lusca-cache/source/detail?r=14235

Modified:
  /wiki/LuscaArchitectureStoreRebuilding.wiki

=======================================
--- /wiki/LuscaArchitectureStoreRebuilding.wiki Wed Jul 22 19:25:05 2009
+++ /wiki/LuscaArchitectureStoreRebuilding.wiki Wed Jul 22 20:30:09 2009
@@ -22,6 +22,16 @@

  This needs to be better documented. How the proxy stores or doesn't store  
content during rebuild, whether temporary disk files are still used  
anywhere, etc.

+= Swap metadata =
+
+Each swap file has a small binary TLV-encoded metadata header which  
contains information about the object - including size, URL, store key,  
refresh/expiry information and such.
+
+= Swap log entries =
+
+A swap log contains one header entry and zero or more swap log entries.  
The swap log header and support code attempts to support "small" (32-bit)  
and "large" (64-bit) swap log formats where the default system "off_t" is  
32 bits. This needs to be documented better (ie, the  
--enable-large-cache-files stuff.)
+
+The first entry is type SWAP_LOG_VERSION. This contains a version and  
record_size. The record size is compared against the size of the 32-bit and  
64-bit versions of the structure. It chooses the correct one and uses that  
for subsequent records.
+
  = Squid Rebuild Information =

  == AUFS ==

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