Increase logging

Author: sfomuseumbot

Sources/SwifterProtomaps/SwifterProtomaps.swift

@@ -118,13 +118,17 @@ public func ServeProtomapsTiles(_ opts: ServeProtomapsOptions) -> ((HttpRequest)
             return .raw(400, "Bad Request", rsp_headers, {_ in })
         }
 
+        opts.Logger?.debug("Read data from \(path) start: \(start) stop: \(stop)")
+        
         let next = stop + 1
 
         let body: Data!
         // file.seek(toFileOffset: start)
 
         do {
 
+            opts.Logger?.debug("Seek \(path) to \(start)")
+            
             if opts.UseFileDescriptor {
                 try fd?.seek(offset: Int64(start), from: FileDescriptor.SeekOrigin.start)
             } else {
@@ -137,6 +141,8 @@ public func ServeProtomapsTiles(_ opts: ServeProtomapsOptions) -> ((HttpRequest)
             return .raw(500, "Internal Server Error", rsp_headers, {_ in })
         }
 
+        opts.Logger?.debug("Read data from \(path) to \(next)")
+        
         if opts.UseFileDescriptor {
 
             guard let data = readData(from: fd!.rawValue, length: next) else {