file_fat.cpp revision 1.4.2.2
1 1.4.2.2 uwe /* $NetBSD: file_fat.cpp,v 1.4.2.2 2006/03/05 04:05:40 uwe Exp $ */ 2 1.4.2.2 uwe 3 1.4.2.2 uwe /*- 4 1.4.2.2 uwe * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. 5 1.4.2.2 uwe * All rights reserved. 6 1.4.2.2 uwe * 7 1.4.2.2 uwe * This code is derived from software contributed to The NetBSD Foundation 8 1.4.2.2 uwe * by UCHIYAMA Yasushi. 9 1.4.2.2 uwe * 10 1.4.2.2 uwe * Redistribution and use in source and binary forms, with or without 11 1.4.2.2 uwe * modification, are permitted provided that the following conditions 12 1.4.2.2 uwe * are met: 13 1.4.2.2 uwe * 1. Redistributions of source code must retain the above copyright 14 1.4.2.2 uwe * notice, this list of conditions and the following disclaimer. 15 1.4.2.2 uwe * 2. Redistributions in binary form must reproduce the above copyright 16 1.4.2.2 uwe * notice, this list of conditions and the following disclaimer in the 17 1.4.2.2 uwe * documentation and/or other materials provided with the distribution. 18 1.4.2.2 uwe * 3. All advertising materials mentioning features or use of this software 19 1.4.2.2 uwe * must display the following acknowledgement: 20 1.4.2.2 uwe * This product includes software developed by the NetBSD 21 1.4.2.2 uwe * Foundation, Inc. and its contributors. 22 1.4.2.2 uwe * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.4.2.2 uwe * contributors may be used to endorse or promote products derived 24 1.4.2.2 uwe * from this software without specific prior written permission. 25 1.4.2.2 uwe * 26 1.4.2.2 uwe * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.4.2.2 uwe * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.4.2.2 uwe * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.4.2.2 uwe * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.4.2.2 uwe * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.4.2.2 uwe * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.4.2.2 uwe * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.4.2.2 uwe * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.4.2.2 uwe * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.4.2.2 uwe * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.4.2.2 uwe * POSSIBILITY OF SUCH DAMAGE. 37 1.4.2.2 uwe */ 38 1.4.2.2 uwe 39 1.4.2.2 uwe #include <file.h> 40 1.4.2.2 uwe #include <file_fat.h> 41 1.4.2.2 uwe #include <console.h> 42 1.4.2.2 uwe 43 1.4.2.2 uwe FatFile::FatFile(Console *&cons) 44 1.4.2.2 uwe : File(cons) 45 1.4.2.2 uwe { 46 1.4.2.2 uwe 47 1.4.2.2 uwe _debug = TRUE; 48 1.4.2.2 uwe DPRINTF((TEXT("FileManager: FAT\n"))); 49 1.4.2.2 uwe } 50 1.4.2.2 uwe 51 1.4.2.2 uwe FatFile::~FatFile(void) 52 1.4.2.2 uwe { 53 1.4.2.2 uwe 54 1.4.2.2 uwe } 55 1.4.2.2 uwe 56 1.4.2.2 uwe BOOL 57 1.4.2.2 uwe FatFile::setRoot(TCHAR *drive) 58 1.4.2.2 uwe { 59 1.4.2.2 uwe 60 1.4.2.2 uwe wcsncpy(_drive, drive, MAX_PATH); 61 1.4.2.2 uwe wcsncpy(_filename, drive, MAX_PATH); 62 1.4.2.2 uwe 63 1.4.2.2 uwe return TRUE; 64 1.4.2.2 uwe } 65 1.4.2.2 uwe 66 1.4.2.2 uwe BOOL 67 1.4.2.2 uwe FatFile::open(const TCHAR *name, uint32_t flags) 68 1.4.2.2 uwe { 69 1.4.2.2 uwe // drive + filename 70 1.4.2.2 uwe wsprintf(_filename, TEXT("%s%s"), _drive, name); 71 1.4.2.2 uwe 72 1.4.2.2 uwe // open it. 73 1.4.2.2 uwe _handle = CreateFile(_filename, GENERIC_READ, 0, 0, 74 1.4.2.2 uwe OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); 75 1.4.2.2 uwe if (_handle == INVALID_HANDLE_VALUE) { 76 1.4.2.2 uwe DPRINTF((TEXT("can't open \"%s\". cause = %d\n"), 77 1.4.2.2 uwe _filename, GetLastError())); 78 1.4.2.2 uwe return FALSE; 79 1.4.2.2 uwe } 80 1.4.2.2 uwe 81 1.4.2.2 uwe size_t sz = size(); 82 1.4.2.2 uwe if (sz == ~0) { 83 1.4.2.2 uwe DPRINTF((TEXT("can't get file size.\n"))); 84 1.4.2.2 uwe CloseHandle(_handle); 85 1.4.2.2 uwe return FALSE; 86 1.4.2.2 uwe } 87 1.4.2.2 uwe DPRINTF((TEXT("open file \"%s\"(%d byte).\n"), _filename, sz)); 88 1.4.2.2 uwe 89 1.4.2.2 uwe return TRUE; 90 1.4.2.2 uwe } 91 1.4.2.2 uwe 92 1.4.2.2 uwe size_t 93 1.4.2.2 uwe FatFile::read(void *buf, size_t bytes, off_t ofs) 94 1.4.2.2 uwe { 95 1.4.2.2 uwe unsigned long readed; 96 1.4.2.2 uwe 97 1.4.2.2 uwe if (ofs != -1) 98 1.4.2.2 uwe SetFilePointer(_handle, ofs, 0, FILE_BEGIN); 99 1.4.2.2 uwe ReadFile(_handle, buf, bytes, &readed, 0); 100 1.4.2.2 uwe 101 1.4.2.2 uwe return size_t(readed); 102 1.4.2.2 uwe } 103 1.4.2.2 uwe 104 1.4.2.2 uwe size_t 105 1.4.2.2 uwe FatFile::write(const void *buf, size_t bytes, off_t ofs) 106 1.4.2.2 uwe { 107 1.4.2.2 uwe unsigned long wrote; 108 1.4.2.2 uwe 109 1.4.2.2 uwe if (ofs != -1) 110 1.4.2.2 uwe SetFilePointer(_handle, ofs, 0, FILE_BEGIN); 111 1.4.2.2 uwe WriteFile(_handle, buf, bytes, &wrote, 0); 112 1.4.2.2 uwe 113 1.4.2.2 uwe return size_t(wrote); 114 1.4.2.2 uwe } 115 1.4.2.2 uwe 116 1.4.2.2 uwe BOOL 117 1.4.2.2 uwe FatFile::seek(off_t ofs) 118 1.4.2.2 uwe { 119 1.4.2.2 uwe 120 1.4.2.2 uwe SetFilePointer(_handle, ofs, 0, FILE_BEGIN); 121 1.4.2.2 uwe 122 1.4.2.2 uwe return TRUE; 123 1.4.2.2 uwe } 124
Indexes created Mon Sep 22 13:09:51 GMT 2025