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"
17 #include "yaffs_nandemul.h"
18 #include "yaffs_guts.h"
36 char *testStr = "this is a test string";
38 char *testStr2 = "abcdefghijklmnopqrstuvwxyz1234567890";
40 void TestTimexxx(yaffs_Device *dev)
49 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
56 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
61 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
66 void TestTimeasasas(yaffs_Device *dev)
79 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
86 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
91 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
95 for(i = 0; i < 10000; i+=20)
100 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
102 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
106 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
112 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
114 yaffs_ReadDataFromFile(f,data,1000,50);
117 printf("Read data is \"%s\"\n",data);
122 yaffs_ResizeFile(f,2000);
133 void TestTime(yaffs_Device *dev)
142 yaffs_Object *d, *df;
156 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
163 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
168 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
170 for(i = 0; i < 100000; i+=20)
175 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
177 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
180 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
186 printf("File length is %d\n",yaffs_GetObjectFileLength(f));
188 sl = yaffs_MknodSymLink(yaffs_Root(dev),"sym-link",0,0,0,"/tmp/alias");
191 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
193 printf("\n\nsymlink alias is \"%s\"\n",alias = yaffs_GetSymlinkAlias(sl));
197 printf("Unlink symlink %d\n",yaffs_Unlink(yaffs_Root(dev),"sym-link"));
200 yaffs_ReadDataFromFile(f,data,1000,50);
203 printf("Read data is \"%s\"\n",data);
208 yaffs_ResizeFile(f,2000);
212 lnf = yaffs_FindObjectByName(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME);
219 printf("Unlink file: %d\n",yaffs_Unlink(yaffs_Root(dev),"Rename"));
221 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
223 // Create a directory and play with it
226 printf("Create directory and play with it\n");
228 d = yaffs_MknodDirectory(yaffs_Root(dev),"direct",0,0,0);
229 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
230 yaffs_ApplyToDirectoryChildren(d,yaffs_DumpObject);
232 printf("Make file in directory\n");
234 df = yaffs_MknodFile(d,"file-in-directory",0,0,0);
235 yaffs_ApplyToDirectoryChildren(d,yaffs_DumpObject);
238 // Do some stuff with hardlinks
240 // NB Deleting hardlinked objects can mess up pointers to hardlinks.
241 // The mechanism is as follows:
242 // * If you unlink a file,softlink or directory that has one or more hardlinks,
243 // then the object is renamed to one of the hardlinks and that hardlink is unlinked.
244 // This means that a pointer to a hardlink so deleted will point to an invalid address.
245 // Thus, make sure that pointers to hardlinks are immediately dereferenced.
248 printf("Hard link tests\n");
250 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
251 hl1 = yaffs_Link(yaffs_Root(dev),"HardLink 1",f);
252 hl2 = yaffs_Link(yaffs_Root(dev),"HardLink 2",f);
253 hl3 = yaffs_Link(yaffs_Root(dev),"HardLink 3",hl2);
255 printf("\n\nHard links created\n");
256 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
258 yaffs_Unlink(yaffs_Root(dev),"HardLink 1");
259 printf("\n\nHard link deleted\n");
260 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
262 yaffs_Unlink(yaffs_Root(dev),"Name1");
263 printf("\n\nHard linked file deleted\n");
264 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
266 yaffs_Unlink(yaffs_Root(dev),"HardLink 2");
267 printf("\n\nHard link 2 deleted\n");
268 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
270 yaffs_Unlink(yaffs_Root(dev),"HardLink 3");
272 printf("\n\nHard link 3 deleted\n");
273 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
275 // NB We don't allow unlinking or rename of the root or lost+found
276 // We allow setting attributes, but these must not be written to
277 // NAND since they are not real objects.
279 printf("Attempt to rename lost+found - should have failed\n");
280 x = yaffs_RenameObject(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME,NULL,"Renamed");
281 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
285 int main(int argc,char *argv[])
287 device.nBlocks = (2 * 1024 * 1024) / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
288 device.startBlock = 1; // Don't use block 0
289 device.endBlock = device.nBlocks - 1;
291 device.writeChunkToNAND = nandemul_WriteChunkToNAND;
292 device.readChunkFromNAND = nandemul_ReadChunkFromNAND;
293 device.eraseBlockInNAND = nandemul_EraseBlockInNAND;
294 device.initialiseNAND = nandemul_InitialiseNAND;
296 yaffs_GutsInitialise(&device);