2 * YAFFS: Yet another FFS. A NAND-flash specific file system.
4 * Copyright (C) 2002-2018 Aleph One Ltd.
6 * Created by Timothy Manning <timothy@yaffs.net>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
14 * yaffs_tester.c designed to stress test yaffs2 direct.
18 #include "yaffs_tester.h"
23 int simulate_power_failure = 0;
26 buffer message_buffer; /*create message_buffer */
28 char yaffs_test_dir[] ="/yaffs2/test_dir"; /*the path to the directory where all of the testing will take place*/
29 char yaffs_mount_dir[]="/yaffs2/"; /*the path to the mount point which yaffs will mount*/
32 int main(int argc, char *argv[]){
35 init(yaffs_test_dir,yaffs_mount_dir,argc,argv);
37 yaffs_unmount(yaffs_mount_dir);
43 void init(char *yaffs_test_dir,char *yaffs_mount_dir,int argc, char *argv[]){
48 /*these variables are already set to zero, but it is better not to take chances*/
49 message_buffer.head=0;
50 message_buffer.tail=0;
53 log_handle=fopen(LOG_FILE,"w");
54 if (log_handle!=NULL){
55 fputs("log file for yaffs tester\n",log_handle);
58 add_to_buffer(&message_buffer,"welcome to the yaffs tester",MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
60 yaffs_mount(yaffs_mount_dir);
62 // add_to_buffer(&message_buffer,"argv ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
63 // add_to_buffer(&message_buffer,argv[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
64 if (strcmp("-seed",argv[x])==0){ /*warning only compares the length of the strings, quick fix*/
65 seed= atoi(argv[x+1]);
66 /*add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
67 append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
68 append_to_buffer(&message_buffer,"\n",MESSAGE_LEVEL_BASIC_TASKS,PRINT);*/
78 add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
79 append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
81 if (yaffs_access(yaffs_test_dir,0)) /* if the test folder does not exist then create it */
83 add_to_buffer(&message_buffer,"creating dir: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
84 append_to_buffer(&message_buffer,yaffs_test_dir,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
85 output=yaffs_mkdir(yaffs_test_dir,S_IREAD | S_IWRITE);
86 yaffs_check_for_errors(output, &message_buffer,"could not create dir","created dir\n\n");
92 yaffs_unmount(yaffs_mount_dir);
95 void join_paths(char *path1,char *path2,char *new_path ){
97 /* printf("strlen path1:%d\n",strlen(path1));
98 printf("strlen path2:%d\n",strlen(path2));
99 printf("path1; %s\n",path1);
101 add_to_buffer(&message_buffer, "joining paths:",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
102 append_to_buffer(&message_buffer,path1,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
103 append_to_buffer(&message_buffer, " and ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
104 append_to_buffer(&message_buffer, path2,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
105 if ( (path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]!='/') {
106 /*paths are compatiable. concatanate them. note -2 is because of \0*/
107 strcat(new_path,path1);
108 strcat(new_path,path2);
109 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
110 //strcpy(new_path,strcat(path1,path2));
113 else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]=='/') {
114 /*paths are compatiable. concatanate them*/
115 strcat(new_path,path1);
116 strcat(new_path,path2);
117 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
118 //strcpy(new_path,strcat(path1,path2));
121 else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]!='/') {
122 /*need to add a "/". */
123 strcat(new_path,path1);
124 strcat(new_path,"/");
125 strcat(new_path,path2);
126 //strcpy(new_path,strcat(path1,strcat("/\0",path2)));
129 copy_array(path1,new_path,0,0);
130 copy_array('\0',new_path,0,(sizeof(path1)/sizeof(char)));
131 copy_array(path2,new_path,0,(sizeof(path1)/sizeof(char))+1);
132 old method now trying to use copy_array
133 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))+1];
134 for (x=0;x<=(sizeof(path1)/sizeof(char))-1;x++){
135 new_path[x]=path1[x];
138 for (x=(sizeof(path1)/sizeof(char)) ,i=0 ;i<=(sizeof(path2)/sizeof(char));x++,i++){
139 new_path[x]=path2[i];
145 else if ((path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]=='/') {
146 /*need to remove a "/". */
147 /*yaffs does not mind the extra slash. */
148 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))-1];
150 strcat(new_path,path1);
151 strcat(new_path,path2);
152 //strcpy(new_path,strcat(path1,strncat("",path2,(sizeof(path1)/sizeof(char))-1)));
161 void open_random_file(char *yaffs_test_dir, handle_regster *P_open_handles_array){
164 char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
165 char path[MAX_FILE_NAME_SIZE+strlen(yaffs_test_dir)];
166 path[0]='\0';// this should clear the path
167 add_to_buffer(&message_buffer,"\n\number of opened handles: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
168 append_int_to_buffer(&message_buffer,P_open_handles_array->number_of_open_handles,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
169 if (P_open_handles_array->number_of_open_handles<MAX_NUMBER_OF_OPENED_HANDLES)
171 generate_random_string(name,MAX_FILE_NAME_SIZE);
172 printf("before %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
173 join_paths(yaffs_test_dir,name,path);
174 printf("after %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
175 add_to_buffer(&message_buffer,"trying to open file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
176 append_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
177 if (yaffs_access(path,0)==0){
181 add_to_buffer(&message_buffer,"file does not exists, creating file",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
184 output=yaffs_open(path,O_CREAT | O_TRUNC| O_RDWR, S_IREAD | S_IWRITE);
186 for (x=0;P_open_handles_array->handle[x]!=-3 && x<MAX_NUMBER_OF_OPENED_HANDLES;x++){} /*find an empty handle*/
188 add_to_buffer(&message_buffer,"handle array id ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
189 append_int_to_buffer(&message_buffer,x,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
191 //for (x=0;handle_pointers[x]!=NULL;x++){}
192 P_open_handles_array->handle[x]=output;
193 P_open_handles_array->path[x][0]='\0';
194 strcat(P_open_handles_array->path[x],path);
195 add_to_buffer(&message_buffer,"yaffs handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
196 append_int_to_buffer(&message_buffer,output,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
197 add_to_buffer(&message_buffer,"stored handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
199 //yaffs_open will return a null pointer if it cannot open a file. check for errors will not work.
200 yaffs_check_for_errors(output, &message_buffer,"failed to open file","opened file");
202 P_open_handles_array->number_of_open_handles++;
204 else close_random_file(P_open_handles_array);
208 void write_to_random_file(handle_regster *P_open_handles_array){
209 int number_of_lines_of_text=0;
216 if (P_open_handles_array->number_of_open_handles>0){
218 while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
219 x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
221 add_to_buffer(&message_buffer,"\n\ntrying to write to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
222 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
224 stat_file(P_open_handles_array->path[x]);
225 number_of_lines_of_text=rand() %1000;
226 add_to_buffer(&message_buffer,"writing ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
227 append_int_to_buffer(&message_buffer,number_of_lines_of_text,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
228 append_to_buffer(&message_buffer," lines of text",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
231 for (;number_of_lines_of_text>0;number_of_lines_of_text--)
233 generate_random_string(text,length);
235 add_to_buffer(&message_buffer,"trying to seek to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
236 append_int_to_buffer(&message_buffer,seek,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
237 output=yaffs_lseek(P_open_handles_array->handle[x],seek,SEEK_SET);
238 yaffs_check_for_errors(output, &message_buffer,"failed to seek","seeked file");
239 add_to_buffer(&message_buffer,"trying to write to file",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
240 output=yaffs_write(P_open_handles_array->handle[x], text, strlen(text));
241 yaffs_check_for_errors(output, &message_buffer,"failed to write text","wrote text");
247 void truncate_random_file(handle_regster *P_open_handles_array){
252 if (P_open_handles_array->number_of_open_handles>0){
253 add_to_buffer(&message_buffer,"\n\ntruncate function ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
254 while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
255 x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
257 add_to_buffer(&message_buffer,"trying to truncate ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
258 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
260 stat_file(P_open_handles_array->path[x]);
261 truncate_size=rand() %10000;
262 output=yaffs_ftruncate(P_open_handles_array->handle[x], truncate_size);
263 yaffs_check_for_errors(output, &message_buffer,"failed to truncate file","truncated file");
267 void close_random_file(handle_regster *P_open_handles_array){
268 /*run out of space on the handle pointer array*/
273 printf("trying to clear handle");
274 if (P_open_handles_array->number_of_open_handles>0){
275 start=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
277 for (x=start;(x+1>start ||x<start);){
279 if (x>MAX_NUMBER_OF_OPENED_HANDLES-1) x=0;
280 if (P_open_handles_array->handle[x] !=-3 ){
281 //the handle is open, so try to close it.
286 if (P_open_handles_array->handle[x]!=-3)
288 add_to_buffer(&message_buffer,"\n\ntrying to close file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
289 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
290 add_to_buffer(&message_buffer,"file handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
291 append_int_to_buffer(&message_buffer,P_open_handles_array->handle[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
293 stat_file(P_open_handles_array->path[x]);
294 output=yaffs_close(P_open_handles_array->handle[x]);
296 if (output==-1) yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
298 yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
299 P_open_handles_array->handle[x]=-3;
300 P_open_handles_array->path[x][0]='\0';
301 P_open_handles_array->number_of_open_handles--;
305 add_to_buffer(&message_buffer,"\n\ntried to close file but could not find a open file ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
310 void stat_file(char *path){
312 struct yaffs_stat stat;
313 if (yaffs_access(path,0)==0){
314 add_to_buffer(&message_buffer,"file exists, trying to stat: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
315 add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
316 output=yaffs_lstat(path,&stat);
317 yaffs_check_for_errors(output, &message_buffer,"failed to stat file","statted file");
318 //stat.st_ino,(int)stat.st_size,stat.st_mode
319 add_to_buffer(&message_buffer,"yaffs inode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
320 append_int_to_buffer(&message_buffer,stat.st_ino,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
321 append_to_buffer(&message_buffer," file size: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
322 append_int_to_buffer(&message_buffer,(int)stat.st_size,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
323 append_to_buffer(&message_buffer," file mode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
324 append_int_to_buffer(&message_buffer,stat.st_mode,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
327 add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
328 append_to_buffer(&message_buffer," does not exist,could not stat",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
332 void test(char*yaffs_test_dir){
333 struct yaffs_stat stat;
335 //char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
336 //char path[MAX_FILE_NAME_SIZE];
337 handle_regster open_handles_array;
338 //int handle_pointers[MAX_NUMBER_OF_OPENED_HANDLES];
339 //int number_of_opened_handles=0;
343 open_handles_array.number_of_open_handles=0;
344 for (x=0;x<MAX_NUMBER_OF_OPENED_HANDLES;x++){
345 open_handles_array.handle[x]=-3;
346 open_handles_array.path[x][0]='\0';
354 printf("running test: %d",x);
356 case 0 :open_random_file(yaffs_test_dir,&open_handles_array);break;
357 case 3 :write_to_random_file(&open_handles_array);break;
358 // case 1 :close_random_file(&open_handles_array);break;
359 case 2 :truncate_random_file(&open_handles_array);break;
363 void generate_random_string(char *ptr,int length_of_str){
365 unsigned int length=((rand() %length_of_str)+1); /*creates a int with the number of charecters been between 1 and 51*/
368 //printf("generating string\n");
369 //printf("string length is %d\n",length);
370 for (x=0; x <= (length-2) &&length>2 ; x++)
372 //printf("x=%d\n",x);
373 /* keep generating a charecter until the charecter is legal*/
374 while((letter=='\0' )||(letter=='/')||(letter=='\\')){
375 letter=(rand() % 126-32)+32; /*generate a number between 32 and 126 and uses it as a charecter (letter) */
378 //printf("charecter generated is %c\n",ptr[x]);
380 ptr[x+1]='\0'; /*adds NULL charecter to turn it into a string*/