+/*
+ * YAFFS: Yet another FFS. A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2010 Aleph One Ltd.
+ * for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Timothy Manning <timothy@yaffs.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * yaffs_tester.c designed to stress test yaffs2 direct.
+ */
+
+
+#include "yaffs_tester.h"
+
+
+
+int random_seed;
+int simulate_power_failure = 0;
+
+
+buffer message_buffer; /*create message_buffer */
+
+char yaffs_test_dir[] ="/yaffs2/test_dir"; /*the path to the directory where all of the testing will take place*/
+char yaffs_mount_dir[]="/yaffs2/"; /*the path to the mount point which yaffs will mount*/
+
+
+int main(int argc, char *argv[]){
+
+
+ init(yaffs_test_dir,yaffs_mount_dir,argc,argv);
+ test(yaffs_test_dir);
+ yaffs_unmount(yaffs_mount_dir);
+ return 0;
+}
+
+
+
+void init(char *yaffs_test_dir,char *yaffs_mount_dir,int argc, char *argv[]){
+ char output=0;
+ int x=0;
+ int seed=-1;
+ FILE *log_handle;
+ /*these variables are already set to zero, but it is better not to take chances*/
+ message_buffer.head=0;
+ message_buffer.tail=0;
+
+
+ log_handle=fopen(LOG_FILE,"w");
+ if (log_handle!=NULL){
+ fputs("log file for yaffs tester\n",log_handle);
+ fclose(log_handle);
+ }
+ add_to_buffer(&message_buffer,"welcome to the yaffs tester",MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
+ yaffs_start_up();
+ yaffs_mount(yaffs_mount_dir);
+ for (x=0;x<argc;x++){
+// add_to_buffer(&message_buffer,"argv ",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+// add_to_buffer(&message_buffer,argv[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ if (strcmp("-seed",argv[x])==0){ /*warning only compares the length of the strings, quick fix*/
+ seed= atoi(argv[x+1]);
+ /*add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer,"\n",MESSAGE_LEVEL_BASIC_TASKS,PRINT);*/
+ }
+ }
+ if (seed==-1){
+ seed=time(NULL);
+ srand(seed);
+ }
+ else {
+ srand(seed);
+ }
+ add_to_buffer(&message_buffer,"setting seed to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,seed,MESSAGE_LEVEL_BASIC_TASKS,PRINT);/* print boot up message*/
+
+ if (yaffs_access(yaffs_test_dir,0)) /* if the test folder does not exist then create it */
+ {
+ add_to_buffer(&message_buffer,"creating dir: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer,yaffs_test_dir,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ output=yaffs_mkdir(yaffs_test_dir,S_IREAD | S_IWRITE);
+ yaffs_check_for_errors(output, &message_buffer,"could not create dir","created dir\n\n");
+ }
+
+}
+
+void quit_program(){
+ yaffs_unmount(yaffs_mount_dir);
+ exit(1);
+}
+void join_paths(char *path1,char *path2,char *new_path ){
+
+/* printf("strlen path1:%d\n",strlen(path1));
+ printf("strlen path2:%d\n",strlen(path2));
+ printf("path1; %s\n",path1);
+*/
+ add_to_buffer(&message_buffer, "joining paths:",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer,path1,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer, " and ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer, path2,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ if ( (path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]!='/') {
+ /*paths are compatiable. concatanate them. note -2 is because of \0*/
+ strcat(new_path,path1);
+ strcat(new_path,path2);
+ //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
+ //strcpy(new_path,strcat(path1,path2));
+ //return new_path;
+ }
+ else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]=='/') {
+ /*paths are compatiable. concatanate them*/
+ strcat(new_path,path1);
+ strcat(new_path,path2);
+ //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))];
+ //strcpy(new_path,strcat(path1,path2));
+ //return new_path;
+ }
+ else if ((path1[(sizeof(path1)/sizeof(char))-2]!='/') && path2[0]!='/') {
+ /*need to add a "/". */
+ strcat(new_path,path1);
+ strcat(new_path,"/");
+ strcat(new_path,path2);
+ //strcpy(new_path,strcat(path1,strcat("/\0",path2)));
+
+#if 0
+ copy_array(path1,new_path,0,0);
+ copy_array('\0',new_path,0,(sizeof(path1)/sizeof(char)));
+ copy_array(path2,new_path,0,(sizeof(path1)/sizeof(char))+1);
+ old method now trying to use copy_array
+ //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))+1];
+ for (x=0;x<=(sizeof(path1)/sizeof(char))-1;x++){
+ new_path[x]=path1[x];
+ }
+ new_path[x+1]='/';
+ for (x=(sizeof(path1)/sizeof(char)) ,i=0 ;i<=(sizeof(path2)/sizeof(char));x++,i++){
+ new_path[x]=path2[i];
+ }
+#endif
+
+ //return new_path;
+ }
+ else if ((path1[(sizeof(path1)/sizeof(char))-2]=='/') && path2[0]=='/') {
+ /*need to remove a "/". */
+ /*yaffs does not mind the extra slash. */
+ //char new_path[(sizeof(path1)/sizeof(char))+(sizeof(path2)/sizeof(char))-1];
+
+ strcat(new_path,path1);
+ strcat(new_path,path2);
+ //strcpy(new_path,strcat(path1,strncat("",path2,(sizeof(path1)/sizeof(char))-1)));
+ //return new_path;
+ }
+ else{
+ //error
+ //return -1;
+ }
+}
+
+void open_random_file(char *yaffs_test_dir, handle_regster *P_open_handles_array){
+ int output=0;
+ int x=0;
+ char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
+ char path[MAX_FILE_NAME_SIZE+strlen(yaffs_test_dir)];
+ path[0]='\0';// this should clear the path
+ add_to_buffer(&message_buffer,"\n\number of opened handles: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,P_open_handles_array->number_of_open_handles,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ if (P_open_handles_array->number_of_open_handles<MAX_NUMBER_OF_OPENED_HANDLES)
+ {
+ generate_random_string(name,MAX_FILE_NAME_SIZE);
+ printf("before %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
+ join_paths(yaffs_test_dir,name,path);//bug###################### here
+ printf("after %d %d %d\n",strlen(yaffs_test_dir),strlen(name),strlen(path));
+ add_to_buffer(&message_buffer,"trying to open file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ if (yaffs_access(path,0)==0){
+ stat_file(path);
+ }
+ else {
+ add_to_buffer(&message_buffer,"file does not exists, creating file",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ }
+
+ output=yaffs_open(path,O_CREAT | O_TRUNC| O_RDWR, S_IREAD | S_IWRITE);
+ x=0;
+ for (x=0;P_open_handles_array->handle[x]!=-3 && x<MAX_NUMBER_OF_OPENED_HANDLES;x++){} /*find an empty handle*/
+
+ add_to_buffer(&message_buffer,"handle array id ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,x,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+
+ //for (x=0;handle_pointers[x]!=NULL;x++){}
+ P_open_handles_array->handle[x]=output;
+ P_open_handles_array->path[x][0]='\0';
+ strcat(P_open_handles_array->path[x],path);
+ add_to_buffer(&message_buffer,"yaffs handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,output,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ add_to_buffer(&message_buffer,"stored handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+
+ //yaffs_open will return a null pointer if it cannot open a file. check for errors will not work.
+ yaffs_check_for_errors(output, &message_buffer,"failed to open file","opened file");
+
+ P_open_handles_array->number_of_open_handles++;
+ }
+ else close_random_file(P_open_handles_array);
+
+}
+
+void write_to_random_file(handle_regster *P_open_handles_array){
+ int number_of_lines_of_text=0;
+ int length=100;
+ char text[length+1];
+ text[0]='\0';
+ int seek=0;
+ int x=0;
+ int output=0;
+ if (P_open_handles_array->number_of_open_handles>0){
+
+ while (P_open_handles_array->handle[x]==-3){ /*find a random open handle*/
+ x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
+ }
+ add_to_buffer(&message_buffer,"\n\ntrying to write to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+
+ stat_file(P_open_handles_array->path[x]);
+ number_of_lines_of_text=rand() %1000;
+ add_to_buffer(&message_buffer,"writing ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,number_of_lines_of_text,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer," lines of text",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+
+
+ for (;number_of_lines_of_text>0;number_of_lines_of_text--)
+ {
+ generate_random_string(text,length);
+ seek=rand()%1000;
+ add_to_buffer(&message_buffer,"trying to seek to ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,seek,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ output=yaffs_lseek(P_open_handles_array->handle[x],seek,SEEK_SET);
+ yaffs_check_for_errors(output, &message_buffer,"failed to seek","seeked file");
+ add_to_buffer(&message_buffer,"trying to write to file",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ output=yaffs_write(P_open_handles_array->handle[x], text, strlen(text));
+ yaffs_check_for_errors(output, &message_buffer,"failed to write text","wrote text");
+
+ }
+ }
+}
+
+void close_random_file(handle_regster *P_open_handles_array){
+ /*run out of space on the handle pointer array*/
+ /*make space*/
+ int x=0;
+ int output=0;
+ while (P_open_handles_array->handle[x]==-3){
+ x=rand() % (MAX_NUMBER_OF_OPENED_HANDLES-1);
+ }
+ add_to_buffer(&message_buffer,"\n\ntrying to close file: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer,P_open_handles_array->path[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ add_to_buffer(&message_buffer,"file handle: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,P_open_handles_array->handle[x],MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+
+ stat_file(P_open_handles_array->path[x]);
+ output=yaffs_close(P_open_handles_array->handle[x]);
+
+ if (output==-1) yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
+ else {
+ yaffs_check_for_errors(output, &message_buffer,"failed to close file","closed file");
+ P_open_handles_array->handle[x]=-3;
+ P_open_handles_array->path[x][0]='\0';
+ P_open_handles_array->number_of_open_handles--;
+ }
+}
+
+void stat_file(char *path){
+ int output=0;
+ struct yaffs_stat stat;
+ if (yaffs_access(path,0)==0){
+ add_to_buffer(&message_buffer,"file exists, trying to stat: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ output=yaffs_lstat(path,&stat);
+ yaffs_check_for_errors(output, &message_buffer,"failed to stat file","statted file");
+ //stat.st_ino,(int)stat.st_size,stat.st_mode
+ add_to_buffer(&message_buffer,"yaffs inode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,stat.st_ino,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer," file size: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,(int)stat.st_size,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer," file mode: ",MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_int_to_buffer(&message_buffer,stat.st_mode,MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ }
+ else{
+ add_to_buffer(&message_buffer,path,MESSAGE_LEVEL_BASIC_TASKS,NPRINT);
+ append_to_buffer(&message_buffer," does not exist,could not stat",MESSAGE_LEVEL_BASIC_TASKS,PRINT);
+ }
+}
+
+void test(char*yaffs_test_dir){
+ struct yaffs_stat stat;
+ int output=0;
+ //char name[MAX_FILE_NAME_SIZE+3 ]="apple\0";
+ //char path[MAX_FILE_NAME_SIZE];
+ handle_regster open_handles_array;
+ //int handle_pointers[MAX_NUMBER_OF_OPENED_HANDLES];
+ //int number_of_opened_handles=0;
+ int x=0;
+
+
+ open_handles_array.number_of_open_handles=0;
+ for (x=0;x<MAX_NUMBER_OF_OPENED_HANDLES;x++){
+ open_handles_array.handle[x]=-3;
+ open_handles_array.path[x][0]='\0';
+
+ }
+ while(1)
+ {
+ x=rand() % 2;
+ switch(x){
+ case 0 :open_random_file(yaffs_test_dir,&open_handles_array);break;
+ case 1 :write_to_random_file(&open_handles_array);break;
+ case 2 :close_random_file(&open_handles_array);break;
+ }
+ }
+}
+void generate_random_string(char *ptr,int length_of_str){
+ unsigned int x;
+ unsigned int length=((rand() %length_of_str)+1); /*creates a int with the number of charecters been between 1 and 51*/
+ char letter='\0';
+
+ //printf("generating string\n");
+ //printf("string length is %d\n",length);
+ for (x=0; x <= (length-2) &&length>2 ; x++)
+ {
+ //printf("x=%d\n",x);
+ /* keep generating a charecter until the charecter is legal*/
+ while((letter=='\0' )||(letter=='/')||(letter=='\\')){
+ letter=(rand() % 126-32)+32; /*generate a number between 32 and 126 and uses it as a charecter (letter) */
+ }
+ ptr[x]=letter;
+ //printf("charecter generated is %c\n",ptr[x]);
+ }
+ ptr[x+1]='\0'; /*adds NULL charecter to turn it into a string*/
+
+}
+
projects / yaffs2.git / commitdiff