Replace qrand with QRandomGenerator when using Qt 5.10 or higher

ext/libstrawberry-common/core/closure.cpp

@@ -19,6 +19,9 @@
 #include <QList>
 #include <QTimer>
 #include <QGenericArgument>
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+#  include <QRandomGenerator>
+#endif
 
 #include "closure.h"
 
@@ -72,6 +75,13 @@ void DoAfter(QObject *receiver, const char *slot, int msec) {
 }
 
 void DoInAMinuteOrSo(QObject *receiver, const char *slot) {
+
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+  int msec = (60 + QRandomGenerator::global()->bounded(1, 60)) * kMsecPerSec;
+#else
   int msec = (60 + (qrand() % 60)) * kMsecPerSec;
+#endif
+
   DoAfter(receiver, slot, msec);
+
 }

ext/libstrawberry-common/core/workerpool.h

@@ -33,6 +33,9 @@
 #include <QString>
 #include <QStringList>
 #include <QAtomicInt>
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+#  include <QRandomGenerator>
+#endif
 
 #include "core/logging.h"
 
@@ -264,7 +267,11 @@ void WorkerPool<HandlerType>::StartOneWorker(Worker *worker) {
 
   // Create a server, find an unused name and start listening
   forever {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+    const int unique_number = QRandomGenerator::global()->bounded((int)(quint64(this) & 0xFFFFFFFF));
+#else
     const int unique_number = qrand() ^ ((int)(quint64(this) & 0xFFFFFFFF));
+#endif
     const QString name = QString("%1_%2").arg(local_server_name_).arg(unique_number);
 
     if (worker->local_server_->listen(name)) {