Merge util_windows.cpp (exists, get_file_size, create_file) from original

Basilisk II for Windows
This commit is contained in:
gbeauche 2004-12-03 22:01:47 +00:00
parent 0e52edfbd0
commit 3094372e34
2 changed files with 115 additions and 0 deletions

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/*
* util_windows.cpp - Miscellaneous utilities for Win32
*
* Basilisk II (C) 1997-2004 Christian Bauer
*
* Windows platform specific code copyright (C) Lauri Pesonen
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "sysdeps.h"
#include "util_windows.h"
BOOL exists( const char *path )
{
HFILE h;
bool ret = false;
h = _lopen( path, OF_READ );
if(h != HFILE_ERROR) {
ret = true;
_lclose(h);
}
return(ret);
}
BOOL create_file( const char *path, DWORD size )
{
HANDLE h;
bool ok = false;
h = CreateFile( path,
GENERIC_READ | GENERIC_WRITE,
0, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL
);
if(h != INVALID_HANDLE_VALUE) {
if(size == 0) {
ok = true;
} else if(SetFilePointer( h, size, NULL, FILE_BEGIN) != 0xFFFFFFFF) {
if(SetEndOfFile(h)) {
ok = true;
if(SetFilePointer( h, 0, NULL, FILE_BEGIN) != 0xFFFFFFFF) {
DWORD written, zeroed_size = min(1024*1024,size);
char *b = (char *)malloc(zeroed_size);
if(b) {
memset( b, 0, zeroed_size );
WriteFile( h, b, zeroed_size, &written, NULL );
free(b);
}
}
}
}
CloseHandle(h);
}
if(!ok) DeleteFile(path);
return(ok);
}
int32 get_file_size( const char *path )
{
HANDLE h;
DWORD size = 0;
h = CreateFile( path,
GENERIC_READ,
0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL
);
if(h != INVALID_HANDLE_VALUE) {
size = GetFileSize( h, NULL );
CloseHandle(h);
}
return(size);
}

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/*
* util_windows.h - Miscellaneous utilities for Win32
*
* Basilisk II (C) 1997-2004 Christian Bauer
*
* Windows platform specific code copyright (C) Lauri Pesonen
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _UTIL_WINDOWS_H
#define _UTIL_WINDOWS_H
BOOL exists( const char *path );
int32 get_file_size( const char *path );
BOOL create_file( const char *path, DWORD size );
#endif // _UTIL_WINDOWS_H