From 1f20565471ec038d636af2774e103b1ff45c27be Mon Sep 17 00:00:00 2001
From: Fellippe Heitor <fellippeheitor@gmail.com>
Date: Thu, 1 Jun 2023 00:30:34 -0300
Subject: [PATCH] Allows CLOSE to be called without parameters

CLOSE should invalidate all open handles when called with no parameters;
---
 qb.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/qb.js b/qb.js
index eceac3a..eab093e 100644
--- a/qb.js
+++ b/qb.js
@@ -1064,6 +1064,12 @@ var QB = new function() {
     };
 
     this.sub_Close = function(fh) {
+        if (!fh) {
+            for (const key in _fileHandles) {
+                delete _fileHandles[key];
+            }
+            return;
+        }
         if (!_fileHandles[fh]) {
             throw new Error("Invalid file handle");
         }