2 * YAFFS: Yet another FFS. A NAND-flash specific file system.
5 * Copyright (C) 2002 Aleph One Ltd.
6 * for Toby Churchill Ltd and Brightstar Engineering
8 * Created by Charles Manning <charles@aleph1.co.uk>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
16 #include "yaffsinterface.h"
20 #include "yaffs_fileem.h"
22 #include "yaffs_nandemul.h"
25 #include "yaffs_guts.h"
35 char *testStr = "this is a test string";
37 char *testStr2 = "abcdefghijklmnopqrstuvwxyz1234567890";
39 void TestTimexxx(yaffs_Device *dev)
48 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
55 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
60 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
65 void TestTimeasasas(yaffs_Device *dev)
78 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
85 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
90 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
94 for(i = 0; i < 10000; i+=20)
99 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
101 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
105 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
111 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
113 yaffs_ReadDataFromFile(f,data,1000,50);
116 printf("Read data is \"%s\"\n",data);
120 printf("Resize to 3000\n");
121 yaffs_ResizeFile(f,3000);
122 printf("Resize to 2048\n");
123 yaffs_ResizeFile(f,2048);
134 void TestTime(yaffs_Device *dev)
143 yaffs_Object *d, *df;
154 printf("Exisiting objects\n");
155 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
156 printf("Exisiting objects in lost+found\n");
157 lnf = yaffs_FindObjectByName(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME);
158 yaffs_ApplyToDirectoryChildren(lnf,yaffs_DumpObject);
163 // Test the problem of:
166 // Create file with same name
167 // Delete file <== crash
169 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
176 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
179 yaffs_Unlink(yaffs_Root(dev),"Name1");
182 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
189 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
192 yaffs_Unlink(yaffs_Root(dev),"Name1");
198 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
205 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
210 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
212 for(i = 0; i < 100000; i+=20)
217 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
219 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
222 yaffs_ReadDataFromFile(f,data,1000,50);
225 printf("Read data is \"%s\"\n",data);
227 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
228 yaffs_ReadDataFromFile(f,data,1000,50);
231 printf("Read data is \"%s\"\n",data);
236 yaffs_ReadDataFromFile(f,data,1000,50);
239 printf("Read data is \"%s\"\n",data);
241 printf("File length is %d\n",yaffs_GetObjectFileLength(f));
243 sl = yaffs_MknodSymLink(yaffs_Root(dev),"sym-link",0,0,0,"/tmp/alias");
244 yaffs_ReadDataFromFile(f,data,1000,50);
247 printf("Read data is \"%s\"\n",data);
250 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
252 printf("\n\nsymlink alias is \"%s\"\n",alias = yaffs_GetSymlinkAlias(sl));
256 printf("Unlink symlink %d\n",yaffs_Unlink(yaffs_Root(dev),"sym-link"));
259 yaffs_ReadDataFromFile(f,data,1000,50);
262 printf("Read data is \"%s\"\n",data);
266 printf("Resize 3000\n");
267 yaffs_ResizeFile(f,3000);
269 printf("Resize 2050\n");
270 yaffs_ResizeFile(f,2050);
271 printf("Resize 2049\n");
272 yaffs_ResizeFile(f,2049);
273 printf("Resize 2048\n");
274 yaffs_ResizeFile(f,2048);
277 printf("Resize 2000\n");
278 yaffs_ResizeFile(f,2000);
282 lnf = yaffs_FindObjectByName(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME);
289 printf("Unlink file: %d\n",yaffs_Unlink(yaffs_Root(dev),"Rename"));
291 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
293 // Create a directory and play with it
296 printf("Find or Create directory and play with it\n");
297 d = yaffs_FindObjectByName(yaffs_Root(dev),"direct");
300 d = yaffs_MknodDirectory(yaffs_Root(dev),"direct",0,0,0);
302 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
303 yaffs_ApplyToDirectoryChildren(d,yaffs_DumpObject);
305 printf("Make file in directory\n");
307 df = yaffs_MknodFile(d,"file-in-directory",0,0,0);
308 yaffs_ApplyToDirectoryChildren(d,yaffs_DumpObject);
311 // Do some stuff with hardlinks
313 // NB Deleting hardlinked objects can mess up pointers to hardlinks.
314 // The mechanism is as follows:
315 // * If you unlink a file,softlink or directory that has one or more hardlinks,
316 // then the object is renamed to one of the hardlinks and that hardlink is unlinked.
317 // This means that a pointer to a hardlink so deleted will point to an invalid address.
318 // Thus, make sure that pointers to hardlinks are immediately dereferenced.
321 printf("Hard link tests\n");
323 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
324 hl1 = yaffs_Link(yaffs_Root(dev),"HardLink 1",f);
325 hl2 = yaffs_Link(yaffs_Root(dev),"HardLink 2",f);
326 hl3 = yaffs_Link(yaffs_Root(dev),"HardLink 3",hl2);
328 printf("\n\nHard links created\n");
329 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
331 yaffs_Unlink(yaffs_Root(dev),"HardLink 1");
332 printf("\n\nHard link deleted\n");
333 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
335 yaffs_Unlink(yaffs_Root(dev),"Name1");
336 printf("\n\nHard linked file deleted\n");
337 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
339 yaffs_Unlink(yaffs_Root(dev),"HardLink 2");
340 printf("\n\nHard link 2 deleted\n");
341 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
343 yaffs_Unlink(yaffs_Root(dev),"HardLink 3");
345 printf("\n\nHard link 3 deleted\n");
346 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
348 // NB We don't allow unlinking or rename of the root or lost+found
349 // We allow setting attributes, but these must not be written to
350 // NAND since they are not real objects.
352 printf("Attempt to rename lost+found - should have failed\n");
353 x = yaffs_RenameObject(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME,NULL,"Renamed");
354 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
356 f = yaffs_MknodFile(yaffs_Root(dev),"pfile",0,0,0);
357 yaffs_WriteDataToFile(f,testStr,0,strlen(testStr));
359 yaffs_Link(yaffs_Root(dev),"phl4",f);
362 void TestTimeDeleteFocussed(yaffs_Device *dev)
374 printf("Exisiting objects\n");
375 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
376 printf("Exisiting objects in lost+found\n");
377 lnf = yaffs_FindObjectByName(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME);
378 yaffs_ApplyToDirectoryChildren(lnf,yaffs_DumpObject);
385 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
392 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
397 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
399 for(i = 0; i < 100000; i+=20)
404 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
406 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
414 printf("Unlink file: %d\n",yaffs_Unlink(yaffs_Root(dev),"Rename"));
416 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
420 void TestTimeTnodeFocussed(yaffs_Device *dev)
432 printf("Exisiting objects\n");
433 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
434 printf("Exisiting objects in lost+found\n");
435 lnf = yaffs_FindObjectByName(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME);
436 yaffs_ApplyToDirectoryChildren(lnf,yaffs_DumpObject);
443 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
450 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
455 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
457 for(i = 0; i < 10000; i+=20)
462 written = yaffs_WriteDataToFile(f,testStr,0,strlen(testStr));
464 written = yaffs_WriteDataToFile(f,testStr2,0,strlen(testStr2));
469 int main(int argc,char *argv[])
473 device.nBlocks = (64 * 1024 * 1024) / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
474 device.writeChunkToNAND = yaffs_FEWriteChunkToNAND;
475 device.readChunkFromNAND = yaffs_FEReadChunkFromNAND;
476 device.eraseBlockInNAND = yaffs_FEEraseBlockInNAND;
477 device.initialiseNAND = yaffs_FEInitialiseNAND;
479 printf("Testing on file emulation\n");
481 device.nBlocks = (2 * 1024 * 1024) / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
482 device.writeChunkToNAND = nandemul_WriteChunkToNAND;
483 device.readChunkFromNAND = nandemul_ReadChunkFromNAND;
484 device.eraseBlockInNAND = nandemul_EraseBlockInNAND;
485 device.initialiseNAND = nandemul_InitialiseNAND;
487 printf("Testing on RAM emulation\n");
490 device.startBlock = 1; // Don't use block 0
491 device.endBlock = device.nBlocks - 1;
493 yaffs_GutsInitialise(&device);