36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
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// Copyright 2014 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FXCRT_FILEACCESS_IFACE_H_
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#define CORE_FXCRT_FILEACCESS_IFACE_H_
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#include <memory>
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#include "core/fxcrt/fx_string.h"
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class FileAccessIface {
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public:
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static std::unique_ptr<FileAccessIface> Create();
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virtual ~FileAccessIface() = default;
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// Opens in read-only mode. `fileName` is UTF-8 on all platforms.
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virtual bool Open(ByteStringView fileName) = 0;
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virtual void Close() = 0;
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virtual FX_FILESIZE GetSize() const = 0;
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virtual FX_FILESIZE GetPosition() const = 0;
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virtual FX_FILESIZE SetPosition(FX_FILESIZE pos) = 0;
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virtual size_t Read(void* pBuffer, size_t szBuffer) = 0;
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virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
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virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
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virtual size_t WritePos(const void* pBuffer,
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size_t szBuffer,
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FX_FILESIZE pos) = 0;
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virtual bool Flush() = 0;
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virtual bool Truncate(FX_FILESIZE szFile) = 0;
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};
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#endif // CORE_FXCRT_FILEACCESS_IFACE_H_
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