From d3978980d2e5b866e6f8b37ed1f69972e7bd6b9a Mon Sep 17 00:00:00 2001
From: Jonathan White <support@dmapps.us>
Date: Sat, 9 Nov 2019 08:02:34 -0500
Subject: Perform file hash checks asynchronously (#3815)

---
 src/core/FileWatcher.cpp | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

(limited to 'src/core/FileWatcher.cpp')

diff --git a/src/core/FileWatcher.cpp b/src/core/FileWatcher.cpp
index 82328832f..0d1def31a 100644
--- a/src/core/FileWatcher.cpp
+++ b/src/core/FileWatcher.cpp
@@ -18,7 +18,9 @@
 
 #include "FileWatcher.h"
 
+#include "core/AsyncTask.h"
 #include "core/Clock.h"
+
 #include <QCryptographicHash>
 #include <QFileInfo>
 
@@ -134,17 +136,19 @@ void FileWatcher::checkFileChecksum()
 
 QByteArray FileWatcher::calculateChecksum()
 {
-    QFile file(m_filePath);
-    if (file.open(QFile::ReadOnly)) {
-        QCryptographicHash hash(QCryptographicHash::Sha256);
-        if (m_fileChecksumSizeBytes > 0) {
-            hash.addData(file.read(m_fileChecksumSizeBytes));
-        } else {
-            hash.addData(&file);
+    return AsyncTask::runAndWaitForFuture([this]() -> QByteArray {
+        QFile file(m_filePath);
+        if (file.open(QFile::ReadOnly)) {
+            QCryptographicHash hash(QCryptographicHash::Sha256);
+            if (m_fileChecksumSizeBytes > 0) {
+                hash.addData(file.read(m_fileChecksumSizeBytes));
+            } else {
+                hash.addData(&file);
+            }
+            return hash.result();
         }
-        return hash.result();
-    }
-    return {};
+        return {};
+    });
 }
 
 BulkFileWatcher::BulkFileWatcher(QObject* parent)
-- 
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