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pcsx2/plugins/CDVDlinuz/Src/Win32/actualfile.c

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/* actualfile.c
* Copyright (C) 2002-2005 PCSX2 Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* PCSX2 members can be contacted through their website at www.pcsx2.net.
*/
#include <windows.h>
#include <stddef.h> // NULL
#include "logfile.h"
#include "actualfile.h"
int IsActualFile(const char *filename) {
DWORD retval;
if(filename == NULL) return(-1);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: IsActualFile(%s)", filename);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
retval = GetFileAttributes(filename);
if(retval == INVALID_FILE_ATTRIBUTES) return(-1); // Name doesn't exist.
if((retval & FILE_ATTRIBUTE_DIRECTORY) != 0) return(-2);
return(0); // Yep, that's a file.
} // END IsActualFile()
void ActualFileDelete(const char *filename) {
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileDelete(%s)", filename);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
DeleteFile(filename);
} // END ActualFileDelete()
void ActualFileRename(const char *origname, const char *newname) {
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileDelete(%s->%s)", origname, newname);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
MoveFile(origname, newname);
return;
} // END ActualFileRename()
ACTUALHANDLE ActualFileOpenForRead(const char *filename) {
HANDLE newhandle;
if(filename == NULL) return(NULL);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileOpenForRead(%s)", filename);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
newhandle = CreateFile(filename,
GENERIC_READ,
FILE_SHARE_READ,
NULL,
OPEN_EXISTING,
FILE_FLAG_RANDOM_ACCESS,
NULL);
if(newhandle == INVALID_HANDLE_VALUE) {
#ifdef VERBOSE_WARNING_ACTUALFILE
PrintLog("CDVDiso file: Error opening file %s", filename);
#endif /* VERBOSE_WARNING_ACTUALFILE */
return(NULL);
} // ENDIF- Error? Abort
return(newhandle);
} // END ActualFileOpenForRead()
off64_t ActualFileSize(ACTUALHANDLE handle) {
int retval;
BY_HANDLE_FILE_INFORMATION info;
off64_t retsize;
if(handle == NULL) return(-1);
if(handle == INVALID_HANDLE_VALUE) return(-1);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileSize()");
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
retval = GetFileInformationByHandle(handle, &info);
if(retval == 0) return(-1); // Handle doesn't exist...
retsize = info.nFileSizeHigh;
retsize *= 0x10000;
retsize *= 0x10000;
retsize += info.nFileSizeLow;
return(retsize);
} // END ActualFileSize()
int ActualFileSeek(ACTUALHANDLE handle, off64_t position) {
// int retval;
LARGE_INTEGER realpos;
DWORD errcode;
if(handle == NULL) return(-1);
if(handle == INVALID_HANDLE_VALUE) return(-1);
if(position < 0) return(-1);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileSeek(%llu)", position);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
realpos.QuadPart = position;
////// WinXP code for seek
// retval = SetFilePointerEx(handle,
// realpos,
// NULL,
// FILE_BEGIN);
// if(retval == 0) {
////// Win98 code for seek
realpos.LowPart = SetFilePointer(handle,
realpos.LowPart,
&realpos.HighPart,
FILE_BEGIN);
errcode = GetLastError();
if((realpos.LowPart == 0xFFFFFFFF) && (errcode != NO_ERROR)) {
#ifdef VERBOSE_WARNING_ACTUALFILE
PrintLog("CDVDiso file: Error on seek (%llu)", position);
PrintError("CDVDiso file", errcode);
#endif /* VERBOSE_WARNING_ACTUALFILE */
return(-1);
} // ENDIF- Error? Abort
return(0);
} // END ActualFileSeek()
int ActualFileRead(ACTUALHANDLE handle, int bytes, char *buffer) {
int retval;
DWORD bytesread;
#ifdef VERBOSE_WARNING_ACTUALFILE
DWORD errcode;
#endif /* VERBOSE_WARNING_ACTUALFILE */
if(handle == NULL) return(-1);
if(handle == INVALID_HANDLE_VALUE) return(-1);
if(bytes < 1) return(-1);
if(buffer == NULL) return(-1);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileRead(%i)", bytes);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
retval = ReadFile(handle, buffer, bytes, &bytesread, NULL);
if(retval == 0) {
#ifdef VERBOSE_WARNING_ACTUALFILE
errcode = GetLastError();
PrintLog("CDVDiso file: Error reading from file");
PrintError("CDVDiso file", errcode);
#endif /* VERBOSE_WARNING_ACTUALFILE */
return(-1);
} // ENDIF- Error? Abort
if(bytesread < bytes) {
#ifdef VERBOSE_WARNING_ACTUALFILE
PrintLog("CDVDiso file: Short Block! Only read %i out of %i bytes", bytesread, bytes);
#endif /* VERBOSE_WARNING_ACTUALFILE */
} // ENDIF- Error? Abort
return(bytesread); // Send back how many bytes read
} // END ActualFileRead()
void ActualFileClose(ACTUALHANDLE handle) {
if(handle == NULL) return;
if(handle == INVALID_HANDLE_VALUE) return;
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileClose()");
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
CloseHandle(handle);
return;
} // END ActualFileClose()
ACTUALHANDLE ActualFileOpenForWrite(const char *filename) {
HANDLE newhandle;
if(filename == NULL) return(NULL);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileOpenForWrite(%s)", filename);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
newhandle = CreateFile(filename,
GENERIC_WRITE,
0,
NULL,
CREATE_ALWAYS,
FILE_FLAG_SEQUENTIAL_SCAN,
NULL);
if(newhandle == INVALID_HANDLE_VALUE) {
#ifdef VERBOSE_WARNING_ACTUALFILE
PrintLog("CDVDiso file: Error opening file %s", filename);
#endif /* VERBOSE_WARNING_ACTUALFILE */
return(NULL);
} // ENDIF- Error? Abort
return(newhandle);
} // END ActualFileOpenForWrite()
int ActualFileWrite(ACTUALHANDLE handle, int bytes, char *buffer) {
int retval;
DWORD byteswritten;
if(handle == NULL) return(-1);
if(handle == INVALID_HANDLE_VALUE) return(-1);
if(bytes < 1) return(-1);
if(buffer == NULL) return(-1);
#ifdef VERBOSE_FUNCTION_ACTUALFILE
PrintLog("CDVDiso file: ActualFileWrite(%i)", bytes);
#endif /* VERBOSE_FUNCTION_ACTUALFILE */
retval = WriteFile(handle, buffer, bytes, &byteswritten, NULL);
if(retval == 0) {
#ifdef VERBOSE_WARNING_ACTUALFILE
PrintLog("CDVDiso file: Error writing to file!");
#endif /* VERBOSE_WARNING_ACTUALFILE */
// return(-1);
} // ENDIF- Error? Abort
return(byteswritten); // Send back how many bytes written
} // END ActualFileWrite()
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