mecanism to free cache memory for memory intensive files that don't r…

…equire multiple read
roznet · Feb 22, 2021 · e93bdf6 · e93bdf6
1 parent d693f59
commit e93bdf6
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diff --git a/Sources/FitFileParser/FitFile.swift b/Sources/FitFileParser/FitFile.swift
@@ -329,4 +329,12 @@ public class FitFile {
         }
         return rv
     }
+
+    /// Clear all cached value when memory need to be reclaimed. All value will then be recalculated if needed
+    public func purgeCache() {
+        for message in self.messages {
+            message.purgeCache()
+        }
+    }
+
 }
diff --git a/Sources/FitFileParser/FitMessage.swift b/Sources/FitFileParser/FitMessage.swift
@@ -101,6 +101,11 @@ public class FitMessage : Codable {
         return interp[key]
     }
 
+    /// Clear all cached value when memory need to be reclaimed. All value will then be recalculated if needed
+    public func purgeCache() {
+        self.cacheInterpretation = [:]
+    }
+
     /// Returns the best swift interpreation of each of the field in the message
     /// Some of the interpration is generic or a function of knowledge on the field, for example times or coordinates
     /// the returned FitFieldValue