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gbeauche |
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/*
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* util_windows.cpp - Miscellaneous utilities for Win32
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*
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* Basilisk II (C) 1997-2004 Christian Bauer
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*
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* Windows platform specific code copyright (C) Lauri Pesonen
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "sysdeps.h"
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#include "util_windows.h"
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BOOL exists( const char *path )
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{
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HFILE h;
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bool ret = false;
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h = _lopen( path, OF_READ );
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if(h != HFILE_ERROR) {
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ret = true;
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_lclose(h);
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}
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return(ret);
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}
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BOOL create_file( const char *path, DWORD size )
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{
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HANDLE h;
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bool ok = false;
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h = CreateFile( path,
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GENERIC_READ | GENERIC_WRITE,
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0, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL
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);
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if(h != INVALID_HANDLE_VALUE) {
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if(size == 0) {
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ok = true;
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} else if(SetFilePointer( h, size, NULL, FILE_BEGIN) != 0xFFFFFFFF) {
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if(SetEndOfFile(h)) {
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ok = true;
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if(SetFilePointer( h, 0, NULL, FILE_BEGIN) != 0xFFFFFFFF) {
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DWORD written, zeroed_size = min(1024*1024,size);
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char *b = (char *)malloc(zeroed_size);
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if(b) {
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memset( b, 0, zeroed_size );
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WriteFile( h, b, zeroed_size, &written, NULL );
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free(b);
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}
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}
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}
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}
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CloseHandle(h);
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}
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if(!ok) DeleteFile(path);
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return(ok);
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}
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int32 get_file_size( const char *path )
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{
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HANDLE h;
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DWORD size = 0;
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h = CreateFile( path,
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GENERIC_READ,
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0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL
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);
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if(h != INVALID_HANDLE_VALUE) {
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size = GetFileSize( h, NULL );
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CloseHandle(h);
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}
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return(size);
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}
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