From 5c1dfe87cb4021c905529451e5ff7718c6c94b2f Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Thu, 17 Feb 2011 09:50:30 +0000
Subject: Made some great progress on the MyriadFs spec...it's interesting, a
 few more decisions to make and we're set.

---
 src/myriadfs.cpp | 14 +++++++-------
 src/myriadfs.h   | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 37 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/myriadfs.cpp b/src/myriadfs.cpp
index 9f68253..c8d23b6 100644
--- a/src/myriadfs.cpp
+++ b/src/myriadfs.cpp
@@ -61,15 +61,15 @@ Bu::MyriadFs::MyriadFs( Bu::Stream &rStore, int iBlockSize ) :
 #endif
 			int32_t iTmp32 = 0;
 			int16_t iTmp16 = 0;
-			ms.write( &iUser, 4 );
-			ms.write( &iGroup, 4 );
-			ms.write( &iTmp16, 2 );
-			ms.write( &iTmp16, 2 );
+			ms.write( &iUser, 4 );		// User
+			ms.write( &iGroup, 4 );		// Group
+			ms.write( &iTmp16, 2 );		// Meta?  I...don't remember this
+			ms.write( &iTmp16, 2 );		// Permissions/types
 			iTmp32 = 3;
-			ms.write( &iTmp32, 4 );
+			ms.write( &iTmp32, 4 );		// Stream index
 			iTmp32 = 0;
-			ms.write( &iTmp32, 4 );
-			ms.write( &iTmp16, 2 );	
+			ms.write( &iTmp32, 4 );		// Parent inode
+			ms.write( &iTmp16, 2 );		// Name size
 		}
 
 		// Create inode 0's storage stream.
diff --git a/src/myriadfs.h b/src/myriadfs.h
index edbdaf5..856137c 100644
--- a/src/myriadfs.h
+++ b/src/myriadfs.h
@@ -19,6 +19,8 @@ namespace Bu
 	/**
 	 * A POSIX compliant, node based filesystem built on top of Myriad.
 	 *
+	 * Think about putting this all in one stream, on block boundaries.
+	 *
 	 * A header is placed into stream 1.
 	 * Header format:
 	 *   int32_t iMagicHeader  (A7188B39)
@@ -39,10 +41,13 @@ namespace Bu
 	 * Basic node header format:
 	 *   int32_t iUser
 	 *   int32_t iGroup
-	 *   int16_t iMeta
 	 *   int16_t iPerms
+	 *   int16_t iLinks
 	 *   int32_t iStreamIndex
 	 *   int32_t iParentNode
+	 *   int64_t iATime
+	 *   int64_t iMTime
+	 *   int64_t iCTime
 	 *   int16_t iNameSize
 	 *   char[iNameSize] sName
 	 */
@@ -52,6 +57,30 @@ namespace Bu
 		MyriadFs( Bu::Stream &rStore, int iBlockSize=512 );
 		virtual ~MyriadFs();
 
+		enum
+		{
+			permOthX	= 0000001,
+			permOthW	= 0000002,
+			permOthR	= 0000004,
+			permGrpX	= 0000010,
+			permGrpW	= 0000020,
+			permGrpR	= 0000040,
+			permUsrX	= 0000100,
+			permUsrW	= 0000200,
+			permUsrR	= 0000400,
+			permSticky	= 0001000,
+			permSetGid	= 0002000,
+			permSetUid	= 0004000,
+			typeFifo	= 0010000,
+			typeChrDev	= 0020000,
+			typeDir		= 0040000,
+			typeBlkDev	= 0060000,
+			typeRegFile	= 0100000,
+			typeSymLink	= 0120000,
+			typeSocket	= 0140000,
+			typeMask	= 0170000
+		}
+
 	private:
 		Bu::Stream &rStore;
 		Bu::Myriad mStore;
-- 
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