5.12

1 files changed, 13 insertions, 9 deletions

diff --git a/process_callback.h b/process_callback.h
index 0f540df6..036ad79a 100644
--- a/process_callback.h
+++ b/process_callback.h
@@ -34,16 +34,20 @@ struct ProcessCallback
 
     //note: this one must NOT throw in order to properly allow undoing setting of statistics!
     //it is in general paired with a call to requestUiRefresh() to compensate!
-    virtual void updateProcessedData(int objectsDelta, zen::Int64 dataDelta) = 0; //throw()!!
+    virtual void updateProcessedData(int objectsDelta, zen::Int64 dataDelta) = 0; //noexcept!!
     virtual void updateTotalData    (int objectsDelta, zen::Int64 dataDelta) = 0; //
-    /*the estimated total may change *during* sync:
-    		1. move file -> fallback to copy + delete
-    		2. file copy, actual size changed after comparison or file contains significant ADS data
-            3. auto-resolution for failed create operations due to missing source
-    		4. directory deletion: may contain more items than scanned by FFS: excluded by filter
-    		5. delete directory to recycler or move to user-defined dir on same volume: no matter how many sub-elements exist, this is only 1 object to process!
-    		6. user-defined deletion directory on different volume: full file copy required (instead of move)
-            7. Copy sparse files */
+    /*the estimated and actual total workload may change *during* sync:
+    		1. detected file can be moved -> fallback to copy + delete
+    		2. file copy, actual size changed after comparison
+    		3. file contains significant ADS data, is sparse or compressed
+            4. auto-resolution for failed create operations due to missing source
+    		5. directory deletion: may contain more items than scanned by FFS (excluded by filter) or less (contains followed symlinks)
+    		6. delete directory to recycler: no matter how many child-elements exist, this is only 1 item to process!
+    		7. file/directory already deleted externally: nothing to do, 0 logical operations and data
+    		8. user-defined deletion directory on different volume: full file copy required (instead of move)
+    		9. Binary file comparison: if files differ at the first few bytes, the result is already known
+    		10. Error during file copy, retry: bytes were copied => increases total workload!
+    */
 
     //opportunity to abort must be implemented in a frequently executed method like requestUiRefresh()
     virtual void requestUiRefresh() = 0; //throw ?