New upstream version 8.1.0

storage/source/components/chunkfetcher/ChunkFetcherSlave.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include <common/app/log/LogContext.h>
+#include <common/components/ComponentInitException.h>
+#include <common/fsck/FsckChunk.h>
+#include <common/threading/PThread.h>
+
+#include <mutex>
+
+class ChunkFetcher; //forward decl.
+
+/**
+ * This component runs over all chunks of one target and gathers information suitable for fsck
+ *
+ * This component is not auto-started when the app starts. It is started and stopped by the
+ * ChunkFetcher.
+ */
+class ChunkFetcherSlave : public PThread
+{
+   friend class ChunkFetcher; // (to grant access to internal mutex)
+
+   public:
+   ChunkFetcherSlave(uint16_t targetID);
+   virtual ~ChunkFetcherSlave();
+
+   private:
+      LogContext log;
+
+      Mutex statusMutex; // protects isRunning
+      Condition isRunningChangeCond;
+
+      bool isRunning; // true if an instance of this component is currently running
+
+      uint16_t targetID;
+
+      virtual void run();
+
+   public:
+      // getters & setters
+      bool getIsRunning(bool isRunning)
+      {
+         const std::lock_guard<Mutex> lock(statusMutex);
+
+         return this->isRunning;
+      }
+
+   private:
+      void walkAllChunks();
+
+      bool walkChunkPath(const std::string& path, uint16_t buddyGroupID, unsigned basePathLen);
+
+      // getters & setters
+
+      void setIsRunning(bool isRunning)
+      {
+         const std::lock_guard<Mutex> lock(statusMutex);
+
+         this->isRunning = isRunning;
+         isRunningChangeCond.broadcast();
+      }
+};
+