2 * YAFFS: Yet another FFS. A NAND-flash specific file system.
4 * Copyright (C) 2002-2010 Aleph One Ltd.
5 * for Toby Churchill Ltd and Brightstar Engineering
7 * Created by Timothy Manning <timothy@yaffs.net>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
15 * yaffs_tester.c designed to stress test yaffs2 direct.
19 #include "yaffs_tester.h"
24 int simulate_power_failure = 0;
27 buffer message_buffer; /*create message_buffer */
29 char yaffs_test_dir[] ="/yaffs2/test_dir"; /*the path to the directory where all of the testing will take place*/
30 char yaffs_mount_dir[]="/yaffs2/"; /*the path to the mount point which yaffs will mount*/
33 int main(int argc, char *argv[]){
36 init(yaffs_test_dir,yaffs_mount_dir,argc,argv);
38 yaffs_unmount(yaffs_mount_dir);
44 void init(char *yaffs_test_dir,char *yaffs_mount_dir,int argc, char *argv[]){
49 /*these variables are already set to zero, but it is better not to take chances*/
50 message_buffer.head=0;
51 message_buffer.tail=0;
54 log_handle=fopen(LOG_FILE,"w");
55 if (log_handle!=NULL){
56 fputs("log file for yaffs tester\n",log_handle);
59 add_to_buffer(&message_buffer,"welcome to the yaffs tester",MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
61 yaffs_mount(yaffs_mount_dir);
63 // add_to_buffer(&message_buffer,"argv ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
64 // add_to_buffer(&message_buffer,argv[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
65 if (strcmp("-seed",argv[x])==0){ /*warning only compares the length of the strings, quick fix*/
66 seed= atoi(argv[x+1]);
67 /*add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
68 append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
69 append_to_buffer(&message_buffer,"\n",MESSAGE_LEVEL_BASIC_TASKS,PRINT);*/
79 add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
80 append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
82 if (yaffs_access(yaffs_test_dir,0)) /* if the test folder does not exist then create it */
84 add_to_buffer(&message_buffer,"creating dir: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
85 append_to_buffer(&message_buffer,yaffs_test_dir,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
86 output=yaffs_mkdir(yaffs_test_dir,S_IREAD | S_IWRITE);
87 yaffs_check_for_errors(output, &message_buffer,"could not create dir","created dir\n\n");
93 yaffs_unmount(yaffs_mount_dir);
96 void join_paths(char *path1,char *path2,char *new_path ){
98 /* printf("strlen path1:%d\n",strlen(path1));
99 printf("strlen path2:%d\n",strlen(path2));
100 printf("path1; %s\n",path1);
102 add_to_buffer(&message_buffer, "joining paths:",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
103 append_to_buffer(&message_buffer,path1,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
104 append_to_buffer(&message_buffer, " and ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
105 append_to_buffer(&message_buffer, path2,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
106 if ( (path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]!='/') {
107 /*paths are compatiable. concatanate them. note -2 is because of \0*/
108 strcat(new_path,path1);
109 strcat(new_path,path2);
110 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
111 //strcpy(new_path,strcat(path1,path2));
114 else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]=='/') {
115 /*paths are compatiable. concatanate them*/
116 strcat(new_path,path1);
117 strcat(new_path,path2);
118 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
119 //strcpy(new_path,strcat(path1,path2));
122 else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]!='/') {
123 /*need to add a "/". */
124 strcat(new_path,path1);
125 strcat(new_path,"/");
126 strcat(new_path,path2);
127 //strcpy(new_path,strcat(path1,strcat("/\0",path2)));
130 copy_array(path1,new_path,0,0);
131 copy_array('\0',new_path,0,(sizeof(path1)/sizeof(char)));
132 copy_array(path2,new_path,0,(sizeof(path1)/sizeof(char))+1);
133 old method now trying to use copy_array
134 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))+1];
135 for (x=0;x<=(sizeof(path1)/sizeof(char))-1;x++){
136 new_path[x]=path1[x];
139 for (x=(sizeof(path1)/sizeof(char)) ,i=0 ;i<=(sizeof(path2)/sizeof(char));x++,i++){
140 new_path[x]=path2[i];
146 else if ((path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]=='/') {
147 /*need to remove a "/". */
148 /*yaffs does not mind the extra slash. */
149 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))-1];
151 strcat(new_path,path1);
152 strcat(new_path,path2);
153 //strcpy(new_path,strcat(path1,strncat("",path2,(sizeof(path1)/sizeof(char))-1)));
162 void open_random_file(char *yaffs_test_dir, handle_regster *P_open_handles_array){
165 char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
166 char path[MAX_FILE_NAME_SIZE+strlen(yaffs_test_dir)];
167 path[0]='\0';// this should clear the path
168 add_to_buffer(&message_buffer,"\n\number of opened handles: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
169 append_int_to_buffer(&message_buffer,P_open_handles_array->number_of_open_handles,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
170 if (P_open_handles_array->number_of_open_handles<MAX_NUMBER_OF_OPENED_HANDLES)
172 generate_random_string(name,MAX_FILE_NAME_SIZE);
173 printf("before %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
174 join_paths(yaffs_test_dir,name,path);//bug###################### here
175 printf("after %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
176 add_to_buffer(&message_buffer,"trying to open file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
177 append_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
178 if (yaffs_access(path,0)==0){
182 add_to_buffer(&message_buffer,"file does not exists, creating file",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
185 output=yaffs_open(path,O_CREAT | O_TRUNC| O_RDWR, S_IREAD | S_IWRITE);
187 for (x=0;P_open_handles_array->handle[x]!=-3 && x<MAX_NUMBER_OF_OPENED_HANDLES;x++){} /*find an empty handle*/
189 add_to_buffer(&message_buffer,"handle array id ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
190 append_int_to_buffer(&message_buffer,x,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
192 //for (x=0;handle_pointers[x]!=NULL;x++){}
193 P_open_handles_array->handle[x]=output;
194 P_open_handles_array->path[x][0]='\0';
195 strcat(P_open_handles_array->path[x],path);
196 add_to_buffer(&message_buffer,"yaffs handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
197 append_int_to_buffer(&message_buffer,output,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
198 add_to_buffer(&message_buffer,"stored handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
200 //yaffs_open will return a null pointer if it cannot open a file. check for errors will not work.
201 yaffs_check_for_errors(output, &message_buffer,"failed to open file","opened file");
203 P_open_handles_array->number_of_open_handles++;
205 else close_random_file(P_open_handles_array);
209 void write_to_random_file(handle_regster *P_open_handles_array){
210 int number_of_lines_of_text=0;
217 if (P_open_handles_array->number_of_open_handles>0){
219 while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
220 x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
222 add_to_buffer(&message_buffer,"\n\ntrying to write to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
223 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
225 stat_file(P_open_handles_array->path[x]);
226 number_of_lines_of_text=rand() %1000;
227 add_to_buffer(&message_buffer,"writing ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
228 append_int_to_buffer(&message_buffer,number_of_lines_of_text,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
229 append_to_buffer(&message_buffer," lines of text",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
232 for (;number_of_lines_of_text>0;number_of_lines_of_text--)
234 generate_random_string(text,length);
236 add_to_buffer(&message_buffer,"trying to seek to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
237 append_int_to_buffer(&message_buffer,seek,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
238 output=yaffs_lseek(P_open_handles_array->handle[x],seek,SEEK_SET);
239 yaffs_check_for_errors(output, &message_buffer,"failed to seek","seeked file");
240 add_to_buffer(&message_buffer,"trying to write to file",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
241 output=yaffs_write(P_open_handles_array->handle[x], text, strlen(text));
242 yaffs_check_for_errors(output, &message_buffer,"failed to write text","wrote text");
248 void truncate_random_file(handle_regster *P_open_handles_array){
253 if (P_open_handles_array->number_of_open_handles>0){
254 add_to_buffer(&message_buffer,"\n\ntruncate function ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
255 while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
256 x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
258 add_to_buffer(&message_buffer,"trying to truncate ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
259 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
261 stat_file(P_open_handles_array->path[x]);
262 truncate_size=rand() %10000;
263 output=yaffs_ftruncate(P_open_handles_array->handle[x], truncate_size);
264 yaffs_check_for_errors(output, &message_buffer,"failed to truncate file","truncated file");
268 void close_random_file(handle_regster *P_open_handles_array){
269 /*run out of space on the handle pointer array*/
274 if (P_open_handles_array->number_of_open_handles>0){
275 start=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
276 for (x=start;P_open_handles_array->handle[x] !=-3 &&(x+1>start ||x<start);){
278 if (x>MAX_NUMBER_OF_OPENED_HANDLES-1) x=0;
281 if (P_open_handles_array->handle[x]!=-3)
283 add_to_buffer(&message_buffer,"\n\ntrying to close file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
284 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
285 add_to_buffer(&message_buffer,"file handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
286 append_int_to_buffer(&message_buffer,P_open_handles_array->handle[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
288 stat_file(P_open_handles_array->path[x]);
289 output=yaffs_close(P_open_handles_array->handle[x]);
291 if (output==-1) yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
293 yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
294 P_open_handles_array->handle[x]=-3;
295 P_open_handles_array->path[x][0]='\0';
296 P_open_handles_array->number_of_open_handles--;
300 add_to_buffer(&message_buffer,"\n\ntried to close file but could not find a open file ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
305 void stat_file(char *path){
307 struct yaffs_stat stat;
308 if (yaffs_access(path,0)==0){
309 add_to_buffer(&message_buffer,"file exists, trying to stat: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
310 add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
311 output=yaffs_lstat(path,&stat);
312 yaffs_check_for_errors(output, &message_buffer,"failed to stat file","statted file");
313 //stat.st_ino,(int)stat.st_size,stat.st_mode
314 add_to_buffer(&message_buffer,"yaffs inode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
315 append_int_to_buffer(&message_buffer,stat.st_ino,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
316 append_to_buffer(&message_buffer," file size: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
317 append_int_to_buffer(&message_buffer,(int)stat.st_size,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
318 append_to_buffer(&message_buffer," file mode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
319 append_int_to_buffer(&message_buffer,stat.st_mode,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
322 add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
323 append_to_buffer(&message_buffer," does not exist,could not stat",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
327 void test(char*yaffs_test_dir){
328 struct yaffs_stat stat;
330 //char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
331 //char path[MAX_FILE_NAME_SIZE];
332 handle_regster open_handles_array;
333 //int handle_pointers[MAX_NUMBER_OF_OPENED_HANDLES];
334 //int number_of_opened_handles=0;
338 open_handles_array.number_of_open_handles=0;
339 for (x=0;x<MAX_NUMBER_OF_OPENED_HANDLES;x++){
340 open_handles_array.handle[x]=-3;
341 open_handles_array.path[x][0]='\0';
348 case 0 :open_random_file(yaffs_test_dir,&open_handles_array);break;
349 //case 1 :write_to_random_file(&open_handles_array);break;
350 case 2 :close_random_file(&open_handles_array);break;
351 case 3 :truncate_random_file(&open_handles_array);break;
355 void generate_random_string(char *ptr,int length_of_str){
357 unsigned int length=((rand() %length_of_str)+1); /*creates a int with the number of charecters been between 1 and 51*/
360 //printf("generating string\n");
361 //printf("string length is %d\n",length);
362 for (x=0; x <= (length-2) &&length>2 ; x++)
364 //printf("x=%d\n",x);
365 /* keep generating a charecter until the charecter is legal*/
366 while((letter=='\0' )||(letter=='/')||(letter=='\\')){
367 letter=(rand() % 126-32)+32; /*generate a number between 32 and 126 and uses it as a charecter (letter) */
370 //printf("charecter generated is %c\n",ptr[x]);
372 ptr[x+1]='\0'; /*adds NULL charecter to turn it into a string*/