1 files changed, 39 insertions, 0 deletions
diff --git a/lib/backupstore/BackgroundTask.h b/lib/backupstore/BackgroundTask.h
new file mode 100644
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+++ b/lib/backupstore/BackgroundTask.h
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+// --------------------------------------------------------------------------
+//
+// File
+//		Name:    BackgroundTask.h
+//		Purpose: Declares the BackgroundTask interface.
+//		Created: 2014/04/07
+//
+// --------------------------------------------------------------------------
+
+#ifndef BACKGROUNDTASK__H
+#define BACKGROUNDTASK__H
+
+// --------------------------------------------------------------------------
+//
+// Class
+//		Name:    BackgroundTask
+//		Purpose: Provides a RunBackgroundTask() method which allows
+//			 background tasks such as polling the command socket
+//			 to happen while a file is being uploaded. If it
+//			 returns false, the current task should be aborted.
+//		Created: 2014/04/07
+//
+// --------------------------------------------------------------------------
+class BackgroundTask
+{
+	public:
+	enum State {
+		Unknown = 0,
+		Scanning_Dirs,
+		Searching_Blocks,
+		Uploading_Full,
+		Uploading_Patch,
+	};
+	virtual ~BackgroundTask() { }
+	virtual bool RunBackgroundTask(State state, uint64_t progress,
+		uint64_t maximum) = 0;
+};
+
+#endif // BACKGROUNDTASK__H