+ Added file-extension based mime type guessing

+ Added sniffer rule based mime type guessing
+ Added get_device_icon()
+ Added complete (synchronous, asynchronous; recursive,
  non-recursive; forcing, non-forcing; you name it we got it :-)
  update_mime_info() implementation.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1152 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/storage/mime/database_access.h

@@ -4,7 +4,7 @@
 //---------------------------------------------------------------------
 /*!
 	\file database_access.h
-	Mime database atomic read function declarations
+	Mime database atomic read functions and miscellany declarations
 */
 
 #ifndef _MIME_DATABASE_ACCESS_H
@@ -39,6 +39,22 @@ bool is_installed(const char *type);
 // to be shipped off to SetIcon*() and written to the database
 status_t get_icon_data(const BBitmap *icon, icon_size size, void **data, int32 *dataSize);
 
+// Common struct used to manage ansynchronous update threads
+struct async_thread_data {
+public:		
+	async_thread_data(thread_id id = -1);
+	bool should_exit() const;
+	void post_exit_notification();
+
+	thread_id id;
+private:
+	bool _should_exit;
+};		
+
+// Called by directly (synchronous calls) and indirectly (asynchronous calls)
+// by update_mime_info()
+int update_mime_info(entry_ref *ref, bool recursive, bool force, async_thread_data *data = NULL);
+
 } // namespace Mime
 } // namespace Storage
 } // namespace BPrivate