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"
18 #include "yaffs_fileem.h"
20 #include "yaffs_nandemul.h"
23 #include "yaffs_guts.h"
41 char *testStr = "this is a test string";
43 char *testStr2 = "abcdefghijklmnopqrstuvwxyz1234567890";
45 void TestTimexxx(yaffs_Device *dev)
54 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
61 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
66 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
71 void TestTimeasasas(yaffs_Device *dev)
84 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
91 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
96 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
100 for(i = 0; i < 10000; i+=20)
105 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
107 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
111 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
117 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
119 yaffs_ReadDataFromFile(f,data,1000,50);
122 printf("Read data is \"%s\"\n",data);
127 yaffs_ResizeFile(f,2000);
138 void TestTime(yaffs_Device *dev)
147 yaffs_Object *d, *df;
161 f = yaffs_FindObjectByName(yaffs_Root(dev),"Name1");
168 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
173 x = yaffs_RenameObject(yaffs_Root(dev),"Name1",NULL,"Rename");
175 for(i = 0; i < 100000; i+=20)
180 written = yaffs_WriteDataToFile(f,testStr,i,strlen(testStr));
182 written = yaffs_WriteDataToFile(f,testStr2,i,strlen(testStr2));
185 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
191 printf("File length is %d\n",yaffs_GetObjectFileLength(f));
193 sl = yaffs_MknodSymLink(yaffs_Root(dev),"sym-link",0,0,0,"/tmp/alias");
196 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
198 printf("\n\nsymlink alias is \"%s\"\n",alias = yaffs_GetSymlinkAlias(sl));
202 printf("Unlink symlink %d\n",yaffs_Unlink(yaffs_Root(dev),"sym-link"));
205 yaffs_ReadDataFromFile(f,data,1000,50);
208 printf("Read data is \"%s\"\n",data);
213 yaffs_ResizeFile(f,2000);
217 lnf = yaffs_FindObjectByName(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME);
224 printf("Unlink file: %d\n",yaffs_Unlink(yaffs_Root(dev),"Rename"));
226 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
228 // Create a directory and play with it
231 printf("Create directory and play with it\n");
233 d = yaffs_MknodDirectory(yaffs_Root(dev),"direct",0,0,0);
234 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
235 yaffs_ApplyToDirectoryChildren(d,yaffs_DumpObject);
237 printf("Make file in directory\n");
239 df = yaffs_MknodFile(d,"file-in-directory",0,0,0);
240 yaffs_ApplyToDirectoryChildren(d,yaffs_DumpObject);
243 // Do some stuff with hardlinks
245 // NB Deleting hardlinked objects can mess up pointers to hardlinks.
246 // The mechanism is as follows:
247 // * If you unlink a file,softlink or directory that has one or more hardlinks,
248 // then the object is renamed to one of the hardlinks and that hardlink is unlinked.
249 // This means that a pointer to a hardlink so deleted will point to an invalid address.
250 // Thus, make sure that pointers to hardlinks are immediately dereferenced.
253 printf("Hard link tests\n");
255 f = yaffs_MknodFile(yaffs_Root(dev),"Name1",0,0,0);
256 hl1 = yaffs_Link(yaffs_Root(dev),"HardLink 1",f);
257 hl2 = yaffs_Link(yaffs_Root(dev),"HardLink 2",f);
258 hl3 = yaffs_Link(yaffs_Root(dev),"HardLink 3",hl2);
260 printf("\n\nHard links created\n");
261 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
263 yaffs_Unlink(yaffs_Root(dev),"HardLink 1");
264 printf("\n\nHard link deleted\n");
265 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
267 yaffs_Unlink(yaffs_Root(dev),"Name1");
268 printf("\n\nHard linked file deleted\n");
269 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
271 yaffs_Unlink(yaffs_Root(dev),"HardLink 2");
272 printf("\n\nHard link 2 deleted\n");
273 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
275 yaffs_Unlink(yaffs_Root(dev),"HardLink 3");
277 printf("\n\nHard link 3 deleted\n");
278 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
280 // NB We don't allow unlinking or rename of the root or lost+found
281 // We allow setting attributes, but these must not be written to
282 // NAND since they are not real objects.
284 printf("Attempt to rename lost+found - should have failed\n");
285 x = yaffs_RenameObject(yaffs_Root(dev),YAFFS_LOSTNFOUND_NAME,NULL,"Renamed");
286 yaffs_ApplyToDirectoryChildren(yaffs_Root(dev),yaffs_DumpObject);
290 int main(int argc,char *argv[])
292 device.nBlocks = (2 * 1024 * 1024) / (YAFFS_CHUNKS_PER_BLOCK * YAFFS_BYTES_PER_CHUNK);
293 device.startBlock = 1; // Don't use block 0
294 device.endBlock = device.nBlocks - 1;
297 device.writeChunkToNAND = yaffs_FEWriteChunkToNAND;
298 device.readChunkFromNAND = yaffs_FEReadChunkFromNAND;
299 device.eraseBlockInNAND = yaffs_FEEraseBlockInNAND;
300 device.initialiseNAND = yaffs_FEInitialiseNAND;
302 printf("Testing on file emulation\n");
304 device.writeChunkToNAND = nandemul_WriteChunkToNAND;
305 device.readChunkFromNAND = nandemul_ReadChunkFromNAND;
306 device.eraseBlockInNAND = nandemul_EraseBlockInNAND;
307 device.initialiseNAND = nandemul_InitialiseNAND;
309 printf("Testing on RAM emulation\n");
312 yaffs_GutsInitialise(&device);