file_fat.cpp revision 1.2.8.2
1 1.2.8.2 nathanw /* $NetBSD: file_fat.cpp,v 1.2.8.2 2002/02/28 04:09:44 nathanw Exp $ */ 2 1.2.8.2 nathanw 3 1.2.8.2 nathanw /*- 4 1.2.8.2 nathanw * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc. 5 1.2.8.2 nathanw * All rights reserved. 6 1.2.8.2 nathanw * 7 1.2.8.2 nathanw * This code is derived from software contributed to The NetBSD Foundation 8 1.2.8.2 nathanw * by UCHIYAMA Yasushi. 9 1.2.8.2 nathanw * 10 1.2.8.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.2.8.2 nathanw * modification, are permitted provided that the following conditions 12 1.2.8.2 nathanw * are met: 13 1.2.8.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.2.8.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.2.8.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.8.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.2.8.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.2.8.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.2.8.2 nathanw * must display the following acknowledgement: 20 1.2.8.2 nathanw * This product includes software developed by the NetBSD 21 1.2.8.2 nathanw * Foundation, Inc. and its contributors. 22 1.2.8.2 nathanw * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.8.2 nathanw * contributors may be used to endorse or promote products derived 24 1.2.8.2 nathanw * from this software without specific prior written permission. 25 1.2.8.2 nathanw * 26 1.2.8.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.8.2 nathanw * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.8.2 nathanw * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.8.2 nathanw * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.8.2 nathanw * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.8.2 nathanw * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.8.2 nathanw * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.8.2 nathanw * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.8.2 nathanw * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.8.2 nathanw * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.8.2 nathanw * POSSIBILITY OF SUCH DAMAGE. 37 1.2.8.2 nathanw */ 38 1.2.8.2 nathanw 39 1.2.8.2 nathanw #include <file.h> 40 1.2.8.2 nathanw #include <file_fat.h> 41 1.2.8.2 nathanw #include <console.h> 42 1.2.8.2 nathanw 43 1.2.8.2 nathanw FatFile::FatFile(Console *&cons) 44 1.2.8.2 nathanw : File(cons) 45 1.2.8.2 nathanw { 46 1.2.8.2 nathanw 47 1.2.8.2 nathanw _debug = TRUE; 48 1.2.8.2 nathanw DPRINTF((TEXT("FileManager: FAT\n"))); 49 1.2.8.2 nathanw } 50 1.2.8.2 nathanw 51 1.2.8.2 nathanw FatFile::~FatFile(void) 52 1.2.8.2 nathanw { 53 1.2.8.2 nathanw 54 1.2.8.2 nathanw } 55 1.2.8.2 nathanw 56 1.2.8.2 nathanw BOOL 57 1.2.8.2 nathanw FatFile::setRoot(TCHAR *drive) 58 1.2.8.2 nathanw { 59 1.2.8.2 nathanw 60 1.2.8.2 nathanw wcsncpy(_drive, drive, MAX_PATH); 61 1.2.8.2 nathanw wcsncpy(_filename, drive, MAX_PATH); 62 1.2.8.2 nathanw 63 1.2.8.2 nathanw return TRUE; 64 1.2.8.2 nathanw } 65 1.2.8.2 nathanw 66 1.2.8.2 nathanw BOOL 67 1.2.8.2 nathanw FatFile::open(const TCHAR *name, u_int32_t flags) 68 1.2.8.2 nathanw { 69 1.2.8.2 nathanw // drive + filename 70 1.2.8.2 nathanw wsprintf(_filename, TEXT("%s%s"), _drive, name); 71 1.2.8.2 nathanw 72 1.2.8.2 nathanw // open it. 73 1.2.8.2 nathanw _handle = CreateFile(_filename, GENERIC_READ, 0, 0, 74 1.2.8.2 nathanw OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); 75 1.2.8.2 nathanw if (_handle == INVALID_HANDLE_VALUE) { 76 1.2.8.2 nathanw DPRINTF((TEXT("can't open \"%s\". cause = %d\n"), 77 1.2.8.2 nathanw _filename, GetLastError())); 78 1.2.8.2 nathanw return FALSE; 79 1.2.8.2 nathanw } 80 1.2.8.2 nathanw 81 1.2.8.2 nathanw size_t sz = size(); 82 1.2.8.2 nathanw if (sz == ~0) { 83 1.2.8.2 nathanw DPRINTF((TEXT("can't get file size.\n"))); 84 1.2.8.2 nathanw CloseHandle(_handle); 85 1.2.8.2 nathanw return FALSE; 86 1.2.8.2 nathanw } 87 1.2.8.2 nathanw DPRINTF((TEXT("open file \"%s\"(%d byte).\n"), _filename, sz)); 88 1.2.8.2 nathanw 89 1.2.8.2 nathanw return TRUE; 90 1.2.8.2 nathanw } 91 1.2.8.2 nathanw 92 1.2.8.2 nathanw size_t 93 1.2.8.2 nathanw FatFile::read(void *buf, size_t bytes, off_t ofs) 94 1.2.8.2 nathanw { 95 1.2.8.2 nathanw unsigned long readed; 96 1.2.8.2 nathanw 97 1.2.8.2 nathanw if (ofs != -1) 98 1.2.8.2 nathanw SetFilePointer(_handle, ofs, 0, FILE_BEGIN); 99 1.2.8.2 nathanw ReadFile(_handle, buf, bytes, &readed, 0); 100 1.2.8.2 nathanw 101 1.2.8.2 nathanw return size_t(readed); 102 1.2.8.2 nathanw } 103 1.2.8.2 nathanw 104 1.2.8.2 nathanw size_t 105 1.2.8.2 nathanw FatFile::write(const void *buf, size_t bytes, off_t ofs) 106 1.2.8.2 nathanw { 107 1.2.8.2 nathanw unsigned long wrote; 108 1.2.8.2 nathanw 109 1.2.8.2 nathanw if (ofs != -1) 110 1.2.8.2 nathanw SetFilePointer(_handle, ofs, 0, FILE_BEGIN); 111 1.2.8.2 nathanw WriteFile(_handle, buf, bytes, &wrote, 0); 112 1.2.8.2 nathanw 113 1.2.8.2 nathanw return size_t(wrote); 114 1.2.8.2 nathanw } 115 1.2.8.2 nathanw 116 1.2.8.2 nathanw BOOL 117 1.2.8.2 nathanw FatFile::seek(off_t ofs) 118 1.2.8.2 nathanw { 119 1.2.8.2 nathanw 120 1.2.8.2 nathanw SetFilePointer(_handle, ofs, 0, FILE_BEGIN); 121 1.2.8.2 nathanw 122 1.2.8.2 nathanw return TRUE; 123 1.2.8.2 nathanw } 124
Indexes created Thu Sep 25 08:09:54 GMT 2025