2d39d3e54a
This project was upgraded with external_updater. Usage: tools/external_updater/updater.sh update gptfdisk For more info, check https://cs.android.com/android/platform/superproject/+/master:tools/external_updater/README.md Test: TreeHugger Change-Id: Ie0d104dec8963b4a0c698f97843fdbf76d0d6fda
93 lines
2.3 KiB
C++
93 lines
2.3 KiB
C++
//
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// C++ Interface: diskio
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//
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// Description: Class to handle low-level disk I/O for GPT fdisk
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//
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//
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// Author: Rod Smith <rodsmith@rodsbooks.com>, (C) 2009
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//
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// Copyright: See COPYING file that comes with this distribution
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//
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//
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// This program is copyright (c) 2009 by Roderick W. Smith. It is distributed
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// under the terms of the GNU GPL version 2, as detailed in the COPYING file.
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#ifndef __DISKIO_H
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#define __DISKIO_H
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#include <string>
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#include <stdint.h>
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#include <sys/types.h>
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#ifdef _WIN32
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#include <windows.h>
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#include <winioctl.h>
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#else
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#include <sys/ioctl.h>
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#endif
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#ifdef __sun__
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#include <sys/dkio.h>
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#endif
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#if defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined (__APPLE__)
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#define fstat64 fstat
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#define stat64 stat
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#endif
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#include "support.h"
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//#include "parttypes.h"
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/***************************************
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* *
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* DiskIO class and related structures *
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* *
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***************************************/
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class DiskIO {
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protected:
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std::string userFilename;
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std::string realFilename;
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std::string modelName;
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int isOpen;
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int openForWrite;
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#ifdef _WIN32
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HANDLE fd;
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#else
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int fd;
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#endif
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#ifdef ENABLE_HEAP_DISKIO
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const unsigned char* data;
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size_t size;
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off_t off;
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#endif
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public:
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DiskIO(void);
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~DiskIO(void);
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void MakeRealName(void);
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#ifdef ENABLE_HEAP_DISKIO
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int OpenForRead(const unsigned char* data, size_t size);
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#endif
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int OpenForRead(const std::string & filename);
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int OpenForRead(void);
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int OpenForWrite(const std::string & filename);
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int OpenForWrite(void);
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void Close();
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int Seek(uint64_t sector);
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int Read(void* buffer, int numBytes);
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int Write(void* buffer, int numBytes);
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int DiskSync(void); // resync disk caches to use new partitions
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int GetBlockSize(void);
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int GetPhysBlockSize(void);
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std::string GetModel(void) {return modelName;}
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uint32_t GetNumHeads(void);
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uint32_t GetNumSecsPerTrack(void);
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int IsOpen(void) {return isOpen;}
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int IsOpenForWrite(void) {return openForWrite;}
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std::string GetName(void) const {return realFilename;}
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uint64_t DiskSize(int* err);
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}; // class DiskIO
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#endif
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