1 files changed, 9 insertions, 4 deletions

diff --git a/src/stable/myriad.h b/src/stable/myriad.h
index 6d99ee4..7cf6041 100644
--- a/src/stable/myriad.h
+++ b/src/stable/myriad.h
@@ -40,8 +40,8 @@ namespace Bu
             Write       = 0x02, ///< Open file for writing
             Create      = 0x04, ///< Create file if it doesn't exist
             Truncate    = 0x08, ///< Truncate file if it does exist
-            Append      = 0x10, ///< Always append on every write
-            NonBlock    = 0x20, ///< Open file in non-blocking mode
+            Append      = 0x10, ///< Start writing at end of file
+            //NonBlock    = 0x20, ///< Open file in non-blocking mode
             Exclusive   = 0x44, ///< Create file, if it exists then fail
 
             // Helpful mixes
@@ -80,8 +80,12 @@ namespace Bu
     private:
         bool loadMyriad();
         void createMyriad( int32_t iBlockSize, int32_t iPreallocateBlocks );
+        void writeHeader();
+        int32_t __calcHeaderSize();
         int32_t allocateBlock();
+        int32_t __allocateBlock();
         void releaseBlock( int32_t iBlockId, bool bBlank=true );
+        void __releaseBlock( int32_t iBlockId, bool bBlank=true );
         void blankBlock( int32_t iBlockId );
 
         void openStream( StreamId id );
@@ -124,6 +128,7 @@ namespace Bu
             int32_t read( int32_t iStart, void *pTarget, int32_t iSize );
             int32_t write( int32_t iStart, const void *pTarget, int32_t iSize );
             Bu::String getLocation() const;
+            Bu::Array<int32_t> getBlockList() const;
 
             /**
              * Doesn't actually open, just increments the open counter.
@@ -150,9 +155,7 @@ namespace Bu
         };
 
     private:
-
         typedef Bu::Hash<StreamId, Stream *> StreamHash;
-
         typedef Bu::List<int32_t> IndexList;
         mutable Bu::Mutex mAccess;
         mutable Bu::Mutex mBacking;
@@ -160,8 +163,10 @@ namespace Bu
         int32_t iBlockSize;
         int32_t iBlockCount;
         bool bIsNewStream;
+        bool bStructureChanged;
         StreamHash hStream;
         IndexList lFreeBlocks;
+        StreamId iLastUsedIndex;
     };
 };