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"
24 int simulate_power_failure = 0;
27 buffer message_buffer; /*create message_buffer */
30 int main(int argc, char *argv[]){
33 init(YAFFS_TEST_DIR, YAFFS_MOUNT_DIR, argc, argv);
35 yaffs_unmount(YAFFS_MOUNT_DIR);
41 void init(char *yaffs_test_dir,char *yaffs_mount_dir,int argc, char *argv[]){
46 /*these variables are already set to zero, but it is better not to take chances*/
47 message_buffer.head=0;
48 message_buffer.tail=0;
51 log_handle=fopen(LOG_FILE,"w");
52 if (log_handle!=NULL){
53 fputs("log file for yaffs tester\n",log_handle);
56 add_to_buffer(&message_buffer,"welcome to the yaffs tester",MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
58 yaffs_mount(yaffs_mount_dir);
60 // add_to_buffer(&message_buffer,"argv ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
61 // add_to_buffer(&message_buffer,argv[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
62 if (strcmp("-seed",argv[x])==0){ /*warning only compares the length of the strings, quick fix*/
63 seed= atoi(argv[x+1]);
64 /*add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
65 append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
66 append_to_buffer(&message_buffer,"\n",MESSAGE_LEVEL_BASIC_TASKS,PRINT);*/
76 add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
77 append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
79 if (yaffs_access(yaffs_test_dir,0)) /* if the test folder does not exist then create it */
81 add_to_buffer(&message_buffer,"creating dir: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
82 append_to_buffer(&message_buffer,yaffs_test_dir,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
83 output=yaffs_mkdir(yaffs_test_dir,S_IREAD | S_IWRITE);
84 yaffs_check_for_errors(output, &message_buffer,"could not create dir","created dir\n\n");
91 void join_paths(char *path1,char *path2,char *new_path ){
93 /* printf("strlen path1:%d\n",strlen(path1));
94 printf("strlen path2:%d\n",strlen(path2));
95 printf("path1; %s\n",path1);
97 add_to_buffer(&message_buffer, "joining paths:",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
98 append_to_buffer(&message_buffer,path1,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
99 append_to_buffer(&message_buffer, " and ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
100 append_to_buffer(&message_buffer, path2,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
101 if ( (path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]!='/') {
102 /*paths are compatiable. concatanate them. note -2 is because of \0*/
103 strcat(new_path,path1);
104 strcat(new_path,path2);
105 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
106 //strcpy(new_path,strcat(path1,path2));
109 else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]=='/') {
110 /*paths are compatiable. concatanate them*/
111 strcat(new_path,path1);
112 strcat(new_path,path2);
113 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
114 //strcpy(new_path,strcat(path1,path2));
117 else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]!='/') {
118 /*need to add a "/". */
119 strcat(new_path,path1);
120 strcat(new_path,"/");
121 strcat(new_path,path2);
122 //strcpy(new_path,strcat(path1,strcat("/\0",path2)));
125 copy_array(path1,new_path,0,0);
126 copy_array('\0',new_path,0,(sizeof(path1)/sizeof(char)));
127 copy_array(path2,new_path,0,(sizeof(path1)/sizeof(char))+1);
128 old method now trying to use copy_array
129 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))+1];
130 for (x=0;x<=(sizeof(path1)/sizeof(char))-1;x++){
131 new_path[x]=path1[x];
134 for (x=(sizeof(path1)/sizeof(char)) ,i=0 ;i<=(sizeof(path2)/sizeof(char));x++,i++){
135 new_path[x]=path2[i];
141 else if ((path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]=='/') {
142 /*need to remove a "/". */
143 /*yaffs does not mind the extra slash. */
144 //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))-1];
146 strcat(new_path,path1);
147 strcat(new_path,path2);
148 //strcpy(new_path,strcat(path1,strncat("",path2,(sizeof(path1)/sizeof(char))-1)));
157 void open_random_file(char *yaffs_test_dir, handle_regster *P_open_handles_array){
160 char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
161 char path[MAX_FILE_NAME_SIZE+strlen(yaffs_test_dir)];
162 path[0]='\0';// this should clear the path
163 add_to_buffer(&message_buffer,"\n\number of opened handles: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
164 append_int_to_buffer(&message_buffer,P_open_handles_array->number_of_open_handles,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
165 if (P_open_handles_array->number_of_open_handles<MAX_NUMBER_OF_OPENED_HANDLES)
167 generate_random_string(name,MAX_FILE_NAME_SIZE);
168 //printf("before %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
169 join_paths(yaffs_test_dir,name,path);
170 //printf("after %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
171 add_to_buffer(&message_buffer,"trying to open file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
172 append_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
173 if (yaffs_access(path,0)==0){
177 add_to_buffer(&message_buffer,"file does not exists, creating file",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
180 output=yaffs_open(path,O_CREAT | O_TRUNC| O_RDWR, S_IREAD | S_IWRITE);
182 for (x=0;P_open_handles_array->handle[x]!=-3 && x<MAX_NUMBER_OF_OPENED_HANDLES;x++){} /*find an empty handle*/
184 add_to_buffer(&message_buffer,"handle array id ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
185 append_int_to_buffer(&message_buffer,x,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
187 //for (x=0;handle_pointers[x]!=NULL;x++){}
188 P_open_handles_array->handle[x]=output;
189 P_open_handles_array->path[x][0]='\0';
190 strcat(P_open_handles_array->path[x],path);
191 add_to_buffer(&message_buffer,"yaffs handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
192 append_int_to_buffer(&message_buffer,output,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
193 add_to_buffer(&message_buffer,"stored handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
195 //yaffs_open will return a null pointer if it cannot open a file. check for errors will not work.
196 yaffs_check_for_errors(output, &message_buffer,"failed to open file","opened file");
198 P_open_handles_array->number_of_open_handles++;
200 else close_random_file(P_open_handles_array);
204 void write_to_random_file(handle_regster *P_open_handles_array){
205 int number_of_lines_of_text=0;
212 if (P_open_handles_array->number_of_open_handles>0){
214 while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
215 x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
217 add_to_buffer(&message_buffer,"\n\ntrying to write to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
218 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
220 stat_file(P_open_handles_array->path[x]);
221 number_of_lines_of_text=rand() %1000;
222 add_to_buffer(&message_buffer,"writing ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
223 append_int_to_buffer(&message_buffer,number_of_lines_of_text,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
224 append_to_buffer(&message_buffer," lines of text",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
227 for (;number_of_lines_of_text>0;number_of_lines_of_text--)
229 generate_random_string(text,length);
231 add_to_buffer(&message_buffer,"trying to seek to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
232 append_int_to_buffer(&message_buffer,seek,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
233 output=yaffs_lseek(P_open_handles_array->handle[x],seek,SEEK_SET);
234 yaffs_check_for_errors(output, &message_buffer,"failed to seek","seeked file");
235 add_to_buffer(&message_buffer,"trying to write to file",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
236 output=yaffs_write(P_open_handles_array->handle[x], text, strlen(text));
237 yaffs_check_for_errors(output, &message_buffer,"failed to write text","wrote text");
243 void truncate_random_file(handle_regster *P_open_handles_array){
248 if (P_open_handles_array->number_of_open_handles>0){
249 add_to_buffer(&message_buffer,"\n\ntruncate function ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
250 while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
251 x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
253 add_to_buffer(&message_buffer,"trying to truncate ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
254 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
256 stat_file(P_open_handles_array->path[x]);
257 truncate_size=rand() %10000;
258 output=yaffs_ftruncate(P_open_handles_array->handle[x], truncate_size);
259 yaffs_check_for_errors(output, &message_buffer,"failed to truncate file","truncated file");
263 void close_random_file(handle_regster *P_open_handles_array){
264 /*run out of space on the handle pointer array*/
269 printf("trying to clear handle");
270 if (P_open_handles_array->number_of_open_handles>0){
271 start=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
273 for (x=start;(x+1>start ||x<start);){
275 if (x>MAX_NUMBER_OF_OPENED_HANDLES-1) x=0;
276 if (P_open_handles_array->handle[x] !=-3 ){
277 //the handle is open, so try to close it.
282 if (P_open_handles_array->handle[x]!=-3)
284 add_to_buffer(&message_buffer,"\n\ntrying to close file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
285 append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
286 add_to_buffer(&message_buffer,"file handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
287 append_int_to_buffer(&message_buffer,P_open_handles_array->handle[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
289 stat_file(P_open_handles_array->path[x]);
290 output=yaffs_close(P_open_handles_array->handle[x]);
292 if (output==-1) yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
294 yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
295 P_open_handles_array->handle[x]=-3;
296 P_open_handles_array->path[x][0]='\0';
297 P_open_handles_array->number_of_open_handles--;
301 add_to_buffer(&message_buffer,"\n\ntried to close file but could not find a open file ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
306 void stat_file(char *path){
308 struct yaffs_stat stat;
309 if (yaffs_access(path,0)==0){
310 add_to_buffer(&message_buffer,"file exists, trying to stat: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
311 add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
312 output=yaffs_lstat(path,&stat);
313 yaffs_check_for_errors(output, &message_buffer,"failed to stat file","statted file");
314 //stat.st_ino,(int)stat.st_size,stat.st_mode
315 add_to_buffer(&message_buffer,"yaffs inode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
316 append_int_to_buffer(&message_buffer,stat.st_ino,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
317 append_to_buffer(&message_buffer," file size: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
318 append_int_to_buffer(&message_buffer,(int)stat.st_size,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
319 append_to_buffer(&message_buffer," file mode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
320 append_int_to_buffer(&message_buffer,stat.st_mode,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
323 add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
324 append_to_buffer(&message_buffer," does not exist,could not stat",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
328 void test(char*yaffs_test_dir){
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';
349 printf("running test: %d",x);
351 case 0 :open_random_file(yaffs_test_dir,&open_handles_array);break;
352 case 3 :write_to_random_file(&open_handles_array);break;
353 // case 1 :close_random_file(&open_handles_array);break;
354 case 2 :truncate_random_file(&open_handles_array);break;
358 void generate_random_string(char *ptr,int length_of_str){
360 unsigned int length=((rand() %length_of_str)+1); /*creates a int with the number of charecters been between 1 and 51*/
363 //printf("generating string\n");
364 //printf("string length is %d\n",length);
365 for (x=0; x <= (length-2) &&length>2 ; x++)
367 //printf("x=%d\n",x);
368 /* keep generating a charecter until the charecter is legal*/
369 while((letter=='\0' )||(letter=='/')||(letter=='\\')){
370 letter=(rand() % 126-32)+32; /*generate a number between 32 and 126 and uses it as a charecter (letter) */
373 //printf("charecter generated is %c\n",ptr[x]);
375 ptr[x+1]='\0'; /*adds NULL charecter to turn it into a string*/