Ref T367, do not read again when info/setup was just read (age)

src/blackcore/setupreader.cpp

@@ -221,6 +221,14 @@ namespace BlackCore
             return msgs;
         }
 
+        if (m_setup.lastUpdatedAge() < 5000)
+        {
+            const CStatusMessage m(this, CStatusMessage::SeverityInfo, "Update info just updated, skip read");
+            CStatusMessageList msgs(m);
+            this->setLastSetupReadErrorMessages(msgs);
+            return msgs;
+        }
+
         // trigger two reads, the file size is small
         const CUrlList randomUrls = m_bootstrapUrls.randomElements(2);
         CUrl url = randomUrls.front();
@@ -252,11 +260,17 @@ namespace BlackCore
         const CUrlList randomUrls = m_updateInfoUrls.randomElements(2);
         if (randomUrls.isEmpty())
         {
-            CStatusMessage(this).warning("Cannot read update info, no URLs");
+            CLogMessage(this).warning("Cannot read update info, no URLs");
             this->manageUpdateInfoAvailability(false);
             return;
         }
 
+        if (m_updateInfo.lastUpdatedAge() < 5000)
+        {
+            CLogMessage(this).info("Update info just updated, skip read");
+            return;
+        }
+
         if (!sApp || m_shutdown) { return; }
         CUrl url = randomUrls.front();
         const CStatusMessage m1(this, CStatusMessage::SeverityInfo, "Start reading update info 1st URL: " + url.toQString());

src/blackmisc/valuecache.h

@@ -418,6 +418,13 @@ namespace BlackMisc
         //! \threadsafe with tiny risk of mismatch of value and timestamp
         QDateTime getTimestamp() const { return QDateTime::fromMSecsSinceEpoch(m_page->getTimestamp(*m_element)); }
 
+        //! Return the time when this value was updated.
+        //! \threadsafe with tiny risk of mismatch of value and timestamp
+        qint64 getTimestampMsSinceEpoch() const { return this->getTimestamp().toMSecsSinceEpoch(); }
+
+        //! How old is that cache (ms)?
+        qint64 lastUpdatedAge() const { return QDateTime::currentMSecsSinceEpoch() - this->getTimestampMsSinceEpoch(); }
+
         //! Return true if this value was already saved.
         bool isSaved() const { return m_page->isSaved(*m_element); }