use process.hrtime instead of Date.now (#1160)

import-js · Sep 9, 2018 · 0764acd · 0764acd
1 parent 6815513
commit 0764acd
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/utils/ModuleCache.js b/utils/ModuleCache.js
@@ -14,7 +14,7 @@ class ModuleCache {
    * @param {[type]} result   [description]
    */
   set(cacheKey, result) {
-    this.map.set(cacheKey, { result, lastSeen: Date.now() })
+    this.map.set(cacheKey, { result, lastSeen: process.hrtime() })
     log('setting entry for', cacheKey)
     return result
   }
@@ -23,7 +23,7 @@ class ModuleCache {
     if (this.map.has(cacheKey)) {
       const f = this.map.get(cacheKey)
       // check fresness
-      if (Date.now() - f.lastSeen < (settings.lifetime * 1000)) return f.result
+      if (process.hrtime(f.lastSeen)[0] < settings.lifetime) return f.result
     } else log('cache miss for', cacheKey)
     // cache miss
     return undefined