Simplified advanced detector file sys scanning code

svn-id: r33455

1 files changed, 18 insertions, 1 deletions

diff --git a/common/system.h b/common/system.h
index b895a5cfba..501d0802fd 100644
--- a/common/system.h
+++ b/common/system.h
@@ -44,6 +44,8 @@ namespace Common {
 	class EventManager;
 	class SaveFileManager;
 	class TimerManager;
+	class SeekableReadStream;
+	class WriteStream;
 }
 
 class FilesystemFactory;
@@ -900,10 +902,25 @@ public:
 	/**
 	 * Returns the FilesystemFactory object, depending on the current architecture.
 	 *
-	 * @return FilesystemFactory* The specific factory for the current architecture.
+	 * @return the FSNode factory for the current architecture
 	 */
 	virtual FilesystemFactory *getFilesystemFactory() = 0;
 
+	/**
+	 * Open the default config file for reading, by returning a suitable
+	 * ReadStream instance. It is the callers responsiblity to delete
+	 * the stream after use.
+	 */
+	virtual Common::SeekableReadStream *openConfigFileForReading();
+
+	/**
+	 * Open the default config file for writing, by returning a suitable
+	 * WriteStream instance. It is the callers responsiblity to delete
+	 * the stream after use.
+	 *
+	 * May return 0 to indicate that writing to config file is not possible.
+	 */
+	virtual Common::WriteStream *openConfigFileForWriting();
 
 	/**
 	 * Return String which is used for backend-specific addition to theme