Add functions pointers into VirtFile.

From VirtFs call if possible pointer from VirtFile.

1 files changed, 50 insertions, 0 deletions

diff --git a/src/fs/virtfsfuncs.h b/src/fs/virtfsfuncs.h
new file mode 100644
index 000000000..1b17ac5db
--- /dev/null
+++ b/src/fs/virtfsfuncs.h
@@ -0,0 +1,50 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2013-2017  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  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; either version 2 of the License, or
+ *  any later version.
+ *
+ *  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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef UTILS_VIRTFSFUNCS_H
+#define UTILS_VIRTFSFUNCS_H
+
+#include "enums/simpletypes/append.h"
+
+#include "localconsts.h"
+
+#include <string>
+
+struct VirtFile;
+
+struct VirtFsFuncs
+{
+    int (*close) (VirtFile *restrict const file);
+    int64_t (*read) (VirtFile *restrict const file,
+                     void *restrict const buffer,
+                     const uint32_t objSize,
+                     const uint32_t objCount);
+    int64_t (*write) (VirtFile *restrict const file,
+                      const void *restrict const buffer,
+                      const uint32_t objSize,
+                      const uint32_t objCount);
+    int64_t (*fileLength) (VirtFile *restrict const file);
+    int64_t (*tell) (VirtFile *restrict const file);
+    int (*seek) (VirtFile *restrict const file,
+                 const uint64_t pos);
+    int (*eof) (VirtFile *restrict const file);
+};
+
+#endif  // UTILS_VIRTFSFUNCS_H