Improve return type for insert function

server/texture-sync-server/src/persistency/mod.rs

@@ -75,7 +75,7 @@ impl DataStore {
         &mut self,
         tex: Texture,
         data: Option<Arc<Vec<u8>>>,
-    ) -> io::Result<ReplaceTextureStatus> {
+    ) -> ProtocolResult<ReplaceTextureStatus> {
         use io::Write;
 
         // Check for collisions
@@ -86,7 +86,9 @@ impl DataStore {
             .is_some()
         {
             // Name or id already in use
-            Ok(ReplaceTextureStatus::Conflict)
+            Err(ProtocolError::Conflict(
+                "Name or id is already in use.".to_string(),
+            ))
         } else {
             // Insert it
             if self.has_hash(&tex.texture_hash)? {