1 files changed, 43 insertions, 0 deletions
diff --git a/storage/csv/transparent_file.h b/storage/csv/transparent_file.h
new file mode 100644
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--- /dev/null
+++ b/storage/csv/transparent_file.h
@@ -0,0 +1,43 @@
+/* Copyright (c) 2003, 2007 MySQL AB, 2009 Sun Microsystems, Inc.
+   Use is subject to license terms.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <my_dir.h>
+
+extern PSI_memory_key csv_key_memory_Transparent_file;
+
+class Transparent_file
+{
+  File filedes;
+  uchar *buff;  /* in-memory window to the file or mmaped area */
+  /* current window sizes */
+  my_off_t lower_bound;
+  my_off_t upper_bound;
+  uint buff_size;
+
+public:
+
+  Transparent_file();
+  ~Transparent_file();
+
+  void init_buff(File filedes_arg);
+  uchar *ptr();
+  my_off_t start();
+  my_off_t end();
+  char get_value (my_off_t offset);
+  my_off_t read_next();
+};