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-rw-r--r--core/fxcrt/ifx_fileaccess.h38
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diff --git a/core/fxcrt/ifx_fileaccess.h b/core/fxcrt/ifx_fileaccess.h
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+// 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_IFX_FILEACCESS_H_
+#define CORE_FXCRT_IFX_FILEACCESS_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 IFX_FileAccess {
+ public:
+ static std::unique_ptr<IFX_FileAccess> Create();
+ virtual ~IFX_FileAccess() {}
+
+ virtual bool Open(const CFX_ByteStringC& fileName, uint32_t dwMode) = 0;
+ virtual bool Open(const CFX_WideStringC& 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_IFX_FILEACCESS_H_