1 files changed, 38 insertions, 0 deletions
diff --git a/core/fxcrt/fileaccess_iface.h b/core/fxcrt/fileaccess_iface.h
new file mode 100644
index 0000000000..c438f9ec47
--- /dev/null
+++ b/core/fxcrt/fileaccess_iface.h
@@ -0,0 +1,38 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_FXCRT_FILEACCESS_IFACE_H_
+#define CORE_FXCRT_FILEACCESS_IFACE_H_
+
+#include <algorithm>
+#include <memory>
+
+#include "core/fxcrt/fx_safe_types.h"
+#include "core/fxcrt/fx_stream.h"
+#include "core/fxcrt/fx_string.h"
+
+class FileAccessIface {
+ public:
+  static std::unique_ptr<FileAccessIface> Create();
+  virtual ~FileAccessIface() {}
+
+  virtual bool Open(const ByteStringView& fileName, uint32_t dwMode) = 0;
+  virtual bool Open(const WideStringView& fileName, uint32_t dwMode) = 0;
+  virtual void Close() = 0;
+  virtual FX_FILESIZE GetSize() const = 0;
+  virtual FX_FILESIZE GetPosition() const = 0;
+  virtual FX_FILESIZE SetPosition(FX_FILESIZE pos) = 0;
+  virtual size_t Read(void* pBuffer, size_t szBuffer) = 0;
+  virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
+  virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
+  virtual size_t WritePos(const void* pBuffer,
+                          size_t szBuffer,
+                          FX_FILESIZE pos) = 0;
+  virtual bool Flush() = 0;
+  virtual bool Truncate(FX_FILESIZE szFile) = 0;
+};
+
+#endif  // CORE_FXCRT_FILEACCESS_IFACE_H_