| 1 | /* ScummVM - Scumm Interpreter |
| 2 | * Copyright (C) 2002-2005 The ScummVM project |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version 2 |
| 7 | * of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | * |
| 18 | * $Header$ |
| 19 | */ |
| 20 | |
| 21 | #if defined(__amigaos4__) |
| 22 | #ifdef __USE_INLINE__ |
| 23 | #undef __USE_INLINE__ |
| 24 | #endif |
| 25 | |
| 26 | #include <proto/exec.h> |
| 27 | #include <proto/dos.h> |
| 28 | #include <stdio.h> |
| 29 | |
| 30 | #ifndef USE_NEWLIB |
| 31 | #include <strings.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <stdafx.h> |
| 35 | |
| 36 | #include "util.h" |
| 37 | |
| 38 | #include "base/engine.h" |
| 39 | #include "../fs.h" |
| 40 | |
| 41 | #define ENTER() /* debug(6, "Enter\n") */ |
| 42 | #define LEAVE() /* debug(6, "Leave\n") */ |
| 43 | |
| 44 | |
| 45 | const uint32 ExAllBufferSize = 40960; |
| 46 | |
| 47 | class AmigaOSFilesystemNode : public AbstractFilesystemNode { |
| 48 | protected: |
| 49 | BPTR _pFileLock; |
| 50 | String _sDisplayName; |
| 51 | bool _bIsDirectory; |
| 52 | bool _bIsValid; |
| 53 | String _sPath; |
| 54 | |
| 55 | public: |
| 56 | AmigaOSFilesystemNode(); |
| 57 | AmigaOSFilesystemNode(const AmigaOSFilesystemNode *pNode); |
| 58 | AmigaOSFilesystemNode(BPTR pLock, const char *pDisplayName = 0); |
| 59 | AmigaOSFilesystemNode(const String &p); |
| 60 | |
| 61 | ~AmigaOSFilesystemNode(); |
| 62 | |
| 63 | virtual String displayName() const { return _sDisplayName; }; |
| 64 | virtual bool isValid() const { return _bIsValid; }; |
| 65 | virtual bool isDirectory() const { return _bIsDirectory; }; |
| 66 | virtual String path() const { return _sPath; }; |
| 67 | |
| 68 | virtual FSList listDir(ListMode mode = kListDirectoriesOnly) const; |
| 69 | virtual FSList listVolumes(void) const; |
| 70 | virtual AbstractFilesystemNode *parent() const; |
| 71 | virtual AbstractFilesystemNode *clone() const { return new AmigaOSFilesystemNode(this); }; |
| 72 | }; |
| 73 | |
| 74 | AbstractFilesystemNode *FilesystemNode::getRoot() { |
| 75 | return new AmigaOSFilesystemNode(); |
| 76 | } |
| 77 | |
| 78 | AbstractFilesystemNode *FilesystemNode::getNodeForPath(const String &path) { |
| 79 | return new AmigaOSFilesystemNode(path); |
| 80 | } |
| 81 | |
| 82 | AmigaOSFilesystemNode::AmigaOSFilesystemNode() { |
| 83 | ENTER(); |
| 84 | _sDisplayName = "Available Disks"; |
| 85 | _bIsValid = true; |
| 86 | _bIsDirectory = true; |
| 87 | _sPath = ""; |
| 88 | _pFileLock = 0; |
| 89 | LEAVE(); |
| 90 | } |
| 91 | |
| 92 | |
| 93 | AmigaOSFilesystemNode::AmigaOSFilesystemNode(const String &p) { |
| 94 | ENTER(); |
| 95 | |
| 96 | int len = 0, offset = p.size(); |
| 97 | |
| 98 | assert(offset > 0); |
| 99 | |
| 100 | _sPath = p; |
| 101 | |
| 102 | // Extract last component from path |
| 103 | const char *str = p.c_str(); |
| 104 | |
| 105 | while (offset > 0 && (str[offset-1] == '/' || str[offset-1] == ':')) |
| 106 | offset--; |
| 107 | |
| 108 | while (offset > 0 && (str[offset-1] != '/' && str[offset-1] != ':')) { |
| 109 | len++; |
| 110 | offset--; |
| 111 | } |
| 112 | |
| 113 | _sDisplayName = String(str + offset, len); |
| 114 | |
| 115 | // Check whether it is a directory, and whether the file actually exists |
| 116 | |
| 117 | struct FileInfoBlock *fib = (struct FileInfoBlock *)IDOS->AllocDosObject(DOS_FIB, NULL); |
| 118 | if (!fib) { |
| 119 | debug(6, "fib == 0\n"); |
| 120 | LEAVE(); |
| 121 | return; |
| 122 | } |
| 123 | |
| 124 | BPTR pLock = IDOS->Lock( (char *)_sPath.c_str(), SHARED_LOCK); |
| 125 | if (pLock) { |
| 126 | if (IDOS->Examine(pLock, fib) != DOSFALSE) { |
| 127 | if (fib->fib_EntryType > 0) |
| 128 | _bIsDirectory = true; |
| 129 | else |
| 130 | _bIsDirectory = false; |
| 131 | |
| 132 | if (_bIsDirectory) { |
| 133 | if (fib->fib_EntryType != ST_ROOT) |
| 134 | _sPath += "/"; |
| 135 | |
| 136 | _pFileLock = IDOS->DupLock(pLock); |
| 137 | _bIsValid = (_pFileLock != 0); |
| 138 | } |
| 139 | else _bIsValid = true; |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | IDOS->FreeDosObject(DOS_FIB, fib); |
| 144 | LEAVE(); |
| 145 | } |
| 146 | |
| 147 | AmigaOSFilesystemNode::AmigaOSFilesystemNode(BPTR pLock, const char *pDisplayName) { |
| 148 | ENTER(); |
| 149 | int bufsize = 256; |
| 150 | _pFileLock = 0; |
| 151 | |
| 152 | while (1) { |
| 153 | char *name = new char[bufsize]; |
| 154 | if (IDOS->NameFromLock(pLock, name, bufsize) != DOSFALSE) { |
| 155 | _sPath = name; |
| 156 | _sDisplayName = pDisplayName ? pDisplayName : IDOS->FilePart(name); |
| 157 | delete name; |
| 158 | break; |
| 159 | } |
| 160 | |
| 161 | if (IDOS->IoErr() != ERROR_LINE_TOO_LONG) { |
| 162 | _bIsValid = false; |
| 163 | debug(6, "Error\n"); |
| 164 | LEAVE(); |
| 165 | delete name; |
| 166 | return; |
| 167 | } |
| 168 | bufsize *= 2; |
| 169 | delete name; |
| 170 | } |
| 171 | |
| 172 | _bIsValid = false; |
| 173 | |
| 174 | struct FileInfoBlock *fib = (struct FileInfoBlock *)IDOS->AllocDosObject(DOS_FIB, NULL); |
| 175 | if (!fib) { |
| 176 | debug(6, "fib == 0\n"); |
| 177 | LEAVE(); |
| 178 | return; |
| 179 | } |
| 180 | |
| 181 | if (IDOS->Examine(pLock, fib) != DOSFALSE) { |
| 182 | if (fib->fib_EntryType > 0) |
| 183 | _bIsDirectory = true; |
| 184 | else |
| 185 | _bIsDirectory = false; |
| 186 | |
| 187 | if (_bIsDirectory) { |
| 188 | if (fib->fib_EntryType != ST_ROOT) |
| 189 | _sPath += "/"; |
| 190 | |
| 191 | _pFileLock = IDOS->DupLock(pLock); |
| 192 | _bIsValid = (_pFileLock != 0); |
| 193 | } |
| 194 | else _bIsValid = true; |
| 195 | } |
| 196 | |
| 197 | IDOS->FreeDosObject(DOS_FIB, fib); |
| 198 | LEAVE(); |
| 199 | } |
| 200 | |
| 201 | AmigaOSFilesystemNode::AmigaOSFilesystemNode(const AmigaOSFilesystemNode *node) { |
| 202 | ENTER(); |
| 203 | _sDisplayName = node->_sDisplayName; |
| 204 | _bIsValid = node->_bIsValid; |
| 205 | _bIsDirectory = node->_bIsDirectory; |
| 206 | _sPath = node->_sPath; |
| 207 | _pFileLock = IDOS->DupLock(node->_pFileLock); |
| 208 | LEAVE(); |
| 209 | } |
| 210 | |
| 211 | AmigaOSFilesystemNode::~AmigaOSFilesystemNode() { |
| 212 | ENTER(); |
| 213 | if (_pFileLock) |
| 214 | IDOS->UnLock(_pFileLock); |
| 215 | LEAVE(); |
| 216 | } |
| 217 | |
| 218 | FSList AmigaOSFilesystemNode::listDir(ListMode mode) const { |
| 219 | ENTER(); |
| 220 | |
| 221 | if (!_bIsValid) { |
| 222 | debug(6, "Invalid node\n"); |
| 223 | LEAVE(); |
| 224 | //return 0; |
| 225 | } |
| 226 | |
| 227 | if (!_bIsDirectory) { |
| 228 | debug(6, "Not a directory\n"); |
| 229 | LEAVE(); |
| 230 | //return 0; |
| 231 | } |
| 232 | |
| 233 | if (_pFileLock == 0) { |
| 234 | debug(6, "Root node\n"); |
| 235 | LEAVE(); |
| 236 | return listVolumes(); |
| 237 | } |
| 238 | |
| 239 | //FSList *myList = new FSList(); |
| 240 | FSList myList; |
| 241 | |
| 242 | struct ExAllControl *eac; |
| 243 | struct ExAllData *data, *ead; |
| 244 | BOOL bExMore; |
| 245 | |
| 246 | eac = (struct ExAllControl *)IDOS->AllocDosObject(DOS_EXALLCONTROL, 0); |
| 247 | if (eac) { |
| 248 | data = (struct ExAllData *)IExec->AllocVec(ExAllBufferSize, MEMF_ANY); |
| 249 | if (data) { |
| 250 | eac->eac_LastKey = 0; |
| 251 | do { |
| 252 | bExMore = IDOS->ExAll(_pFileLock, data, ExAllBufferSize, |
| 253 | ED_TYPE, eac); |
| 254 | |
| 255 | LONG error = IDOS->IoErr(); |
| 256 | if (!bExMore && error != ERROR_NO_MORE_ENTRIES) |
| 257 | break; |
| 258 | |
| 259 | if (eac->eac_Entries == 0) |
| 260 | continue; |
| 261 | |
| 262 | ead = data; |
| 263 | do { |
| 264 | AmigaOSFilesystemNode *entry; |
| 265 | String full_path; |
| 266 | BPTR lock; |
| 267 | |
| 268 | if ((ead->ed_Type > 0 && (mode & kListDirectoriesOnly)) || |
| 269 | (ead->ed_Type < 0 && (mode & kListFilesOnly))) { |
| 270 | full_path = _sPath; |
| 271 | full_path += (char*)ead->ed_Name; |
| 272 | lock = IDOS->Lock((char *)full_path.c_str(), SHARED_LOCK); |
| 273 | if (lock) { |
| 274 | entry = new AmigaOSFilesystemNode(lock, (char *)ead->ed_Name); |
| 275 | if (entry) { |
| 276 | if (entry->isValid()) |
| 277 | myList.push_back(wrap(entry)); |
| 278 | else |
| 279 | delete entry; |
| 280 | } |
| 281 | IDOS->UnLock(lock); |
| 282 | } |
| 283 | } |
| 284 | ead = ead->ed_Next; |
| 285 | } while (ead); |
| 286 | } while (bExMore); |
| 287 | |
| 288 | IExec->FreeVec(data); |
| 289 | } |
| 290 | |
| 291 | IDOS->FreeDosObject(DOS_EXALLCONTROL, eac); |
| 292 | } |
| 293 | LEAVE(); |
| 294 | return myList; |
| 295 | } |
| 296 | |
| 297 | AbstractFilesystemNode *AmigaOSFilesystemNode::parent() const { |
| 298 | ENTER(); |
| 299 | AmigaOSFilesystemNode *node; |
| 300 | |
| 301 | if (!_bIsDirectory) { |
| 302 | debug(6, "No directory\n"); |
| 303 | LEAVE(); |
| 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | if (_pFileLock == 0) { |
| 308 | debug(6, "Root node\n"); |
| 309 | LEAVE(); |
| 310 | return clone(); |
| 311 | } |
| 312 | |
| 313 | BPTR parent = IDOS->ParentDir(_pFileLock); |
| 314 | if (parent) { |
| 315 | node = new AmigaOSFilesystemNode(parent); |
| 316 | IDOS->UnLock(parent); |
| 317 | } |
| 318 | else |
| 319 | node = new AmigaOSFilesystemNode(); |
| 320 | |
| 321 | LEAVE(); |
| 322 | return node; |
| 323 | } |
| 324 | |
| 325 | FSList AmigaOSFilesystemNode::listVolumes(void) const { |
| 326 | ENTER(); |
| 327 | //FSList *myList = new FSList(); |
| 328 | FSList myList; |
| 329 | |
| 330 | struct DosList *dosList; |
| 331 | |
| 332 | const uint32 lockFlags = LDF_READ | LDF_VOLUMES; |
| 333 | char name[256]; |
| 334 | |
| 335 | dosList = IDOS->LockDosList(lockFlags); |
| 336 | if (!dosList) { |
| 337 | debug(6, "Cannot lock dos list\n"); |
| 338 | LEAVE(); |
| 339 | return myList; |
| 340 | } |
| 341 | |
| 342 | |
| 343 | dosList = IDOS->NextDosEntry(dosList, LDF_VOLUMES); |
| 344 | while (dosList) { |
| 345 | if (dosList->dol_Type == DLT_VOLUME && |
| 346 | dosList->dol_Name && |
| 347 | dosList->dol_Task) { |
| 348 | AmigaOSFilesystemNode *entry; |
| 349 | const char *volname = (const char *)BADDR(dosList->dol_Name)+1; |
| 350 | const char *devname = (const char *)((struct Task *)dosList->dol_Task->mp_SigTask)->tc_Node.ln_Name; |
| 351 | |
| 352 | strcpy(name, volname); |
| 353 | strcat(name, ":"); |
| 354 | |
| 355 | BPTR volume_lock = IDOS->Lock(name, SHARED_LOCK); |
| 356 | if (volume_lock) { |
| 357 | sprintf(name, "%s (%s)", volname, devname); |
| 358 | entry = new AmigaOSFilesystemNode(volume_lock, name); |
| 359 | if (entry) { |
| 360 | if (entry->isValid()) |
| 361 | myList.push_back(wrap(entry)); |
| 362 | else |
| 363 | delete entry; |
| 364 | } |
| 365 | IDOS->UnLock(volume_lock); |
| 366 | } |
| 367 | } |
| 368 | dosList = IDOS->NextDosEntry(dosList, LDF_VOLUMES); |
| 369 | } |
| 370 | |
| 371 | IDOS->UnLockDosList(lockFlags); |
| 372 | |
| 373 | LEAVE(); |
| 374 | return myList; |
| 375 | } |
| 376 | |
| 377 | #endif |