1 // 2 // C++ Interface: diskio 3 // 4 // Description: Class to handle low-level disk I/O for GPT fdisk 5 // 6 // 7 // Author: Rod Smith <rodsmith (at) rodsbooks.com>, (C) 2009 8 // 9 // Copyright: See COPYING file that comes with this distribution 10 // 11 // 12 // This program is copyright (c) 2009 by Roderick W. Smith. It is distributed 13 // under the terms of the GNU GPL version 2, as detailed in the COPYING file. 14 15 #ifndef __DISKIO_H 16 #define __DISKIO_H 17 18 #include <string> 19 #include <stdint.h> 20 #include <sys/types.h> 21 #ifdef _WIN32 22 #include <windows.h> 23 #include <winioctl.h> 24 #else 25 #include <sys/ioctl.h> 26 #endif 27 28 #ifdef __sun__ 29 #include <sys/dkio.h> 30 #endif 31 32 #if defined (__FreeBSD__) || defined (__FreeBSD_kernel__) || defined (__APPLE__) 33 #define fstat64 fstat 34 #define stat64 stat 35 #endif 36 37 #include "support.h" 38 //#include "parttypes.h" 39 40 using namespace std; 41 42 /*************************************** 43 * * 44 * DiskIO class and related structures * 45 * * 46 ***************************************/ 47 48 class DiskIO { 49 protected: 50 string userFilename; 51 string realFilename; 52 int isOpen; 53 int openForWrite; 54 #ifdef _WIN32 55 HANDLE fd; 56 #else 57 int fd; 58 #endif 59 public: 60 DiskIO(void); 61 ~DiskIO(void); 62 63 void MakeRealName(void); 64 int OpenForRead(const string & filename); 65 int OpenForRead(void); 66 int OpenForWrite(const string & filename); 67 int OpenForWrite(void); 68 void Close(); 69 int Seek(uint64_t sector); 70 int Read(void* buffer, int numBytes); 71 int Write(void* buffer, int numBytes); 72 int DiskSync(void); // resync disk caches to use new partitions 73 int GetBlockSize(void); 74 uint32_t GetNumHeads(void); 75 uint32_t GetNumSecsPerTrack(void); 76 int IsOpen(void) {return isOpen;} 77 int IsOpenForWrite(void) {return openForWrite;} 78 string GetName(void) const {return realFilename;} 79 80 uint64_t DiskSize(int* err); 81 }; // class DiskIO 82 83 #endif 84
