1 files changed, 23 insertions, 1 deletions

diff --git a/src/stable/myriad.h b/src/stable/myriad.h
index 58f700a..c3f682d 100644
--- a/src/stable/myriad.h
+++ b/src/stable/myriad.h
@@ -32,7 +32,7 @@ namespace Bu
     {
     public:
         typedef int32_t StreamId;
-        enum Mode {
+        enum Mode : int32_t {
             None        = 0x00,
 
             // Flags
@@ -75,6 +75,8 @@ namespace Bu
         MyriadStream open( StreamId iStream, Mode eMode );
         void erase( StreamId iStream );
         void setSize( StreamId iStream, int32_t iNewSize );
+        int32_t getSize( StreamId iStream ) const;
+        bool exists( StreamId iStream ) const;
         Bu::String getLocation() const;
         int32_t getBlockSize() const;
         int32_t getTotalBlocks() const;
@@ -84,6 +86,12 @@ namespace Bu
         int32_t getTotalUsedBytes() const;
         int32_t getTotalUnusedBytes( int32_t iAssumeBlockSize=-1 ) const;
 
+        /**
+         * Flush all caches to the backing stream, write all structural and
+         * header changes.
+         */
+        void sync();
+
     private:
         bool loadMyriad();
         void createMyriad( int32_t iBlockSize, int32_t iPreallocateBlocks );
@@ -175,6 +183,20 @@ namespace Bu
         IndexList lFreeBlocks;
         StreamId iLastUsedIndex;
     };
+    constexpr Myriad::Mode operator&( Myriad::Mode a, Myriad::Mode b )
+    {
+        return static_cast<Myriad::Mode>(
+            static_cast<std::underlying_type<Myriad::Mode>::type>(a) &
+            static_cast<std::underlying_type<Myriad::Mode>::type>(b)
+            );
+    }
+    constexpr Myriad::Mode operator|( Myriad::Mode a, Myriad::Mode b )
+    {
+        return static_cast<Myriad::Mode>(
+            static_cast<std::underlying_type<Myriad::Mode>::type>(a) |
+            static_cast<std::underlying_type<Myriad::Mode>::type>(b)
+            );
+    }
 };
 
 #endif