Guard concurrent access of ProductBuildData::m_jsArtifactsMapUpToDate

This fixes a race condition where product.artifacts would contain
outdated information.

Change-Id: I17130a11fbce557314a0157da61c15dae2271189
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/lib/corelib/buildgraph/productbuilddata.cpp b/src/lib/corelib/buildgraph/productbuilddata.cpp
index bb1a8d6af..7445c93cb 100644
--- a/src/lib/corelib/buildgraph/productbuilddata.cpp
+++ b/src/lib/corelib/buildgraph/productbuilddata.cpp
@@ -143,6 +143,16 @@ void ProductBuildData::addRescuableArtifactData(const QString &filePath,
     m_rescuableArtifactData.insert(filePath, rad);
 }
 
+bool ProductBuildData::checkAndSetJsArtifactsMapUpToDateFlag()
+{
+    std::lock_guard<std::mutex> l(m_artifactsMapMutex);
+    if (!m_jsArtifactsMapUpToDate) {
+        m_jsArtifactsMapUpToDate = true;
+        return false;
+    }
+    return true;
+}
+
 void ProductBuildData::removeArtifactFromSet(Artifact *artifact)
 {
     for (const FileTag &t : artifact->fileTags())