dtest.c

yaffs2

	
	a = yaffs_open("/boot/trunctest", O_CREAT | O_TRUNC | O_RDWR,  S_IREAD | S_IWRITE);
	
	yaffs_write(a,"abcdefghijklmnopqrstuvwzyz",26);
	
	yaffs_truncate(a,3);
	l= yaffs_lseek(a,0,SEEK_END);
	
	printf("truncated length is %d\n",l);

	yaffs_lseek(a,5,SEEK_SET);
	yaffs_write(a,"1",1);

	yaffs_lseek(a,0,SEEK_SET);
	
	r = yaffs_read(a,y,10);

	printf("read %d bytes:",r);

	for(i = 0; i < r; i++) printf("[%02X]",y[i]);

	printf("\n");

	return 0;

}





void fill_disk_test(const char *mountpt)
{
	int i;
	yaffs_StartUp();
	
	for(i = 0; i < 5; i++)
	{
		yaffs_mount(mountpt);
		fill_disk_and_delete(mountpt,100,i+1);
		yaffs_unmount(mountpt);
	}
	
}



void lookup_test(const char *mountpt)
{
	int i;
	int h;
	char a[100];
	char b[100];
	

	yaffs_DIR *d;
	yaffs_dirent *de;
	struct yaffs_stat s;
	char str[100];

	yaffs_StartUp();
	
	yaffs_mount(mountpt);
				
	d = yaffs_opendir(mountpt);
	
	if(!d)
	{
		printf("opendir failed\n");
	}
	else
	{
		
		for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
		{
			printf("unlinking %s\n",de->d_name);
			yaffs_unlink(de->d_name);
		}
		
		printf("%d files deleted\n",i);
	}
	
	
	for(i = 0; i < 2000; i++){
	sprintf(a,"%s/%d",mountpt,i);
		h =  yaffs_open(a,O_CREAT | O_TRUNC | O_RDWR, 0);
		yaffs_close(h);
	}

	yaffs_rewinddir(d);
	for(i = 0; (de = yaffs_readdir(d)) != NULL; i++)
	{
		printf("%d  %s\n",i,de->d_name);
	}	
	
	printf("%d files listed\n\n\n",i);
	
	yaffs_rewinddir(d);
	yaffs_readdir(d);
	yaffs_readdir(d);
	yaffs_readdir(d);
	
	for(i = 0; i < 2000; i++){
		sprintf(a,"%s/%d",mountpt,i);
		yaffs_unlink(a);
	}
	
		
	yaffs_unmount(mountpt);
	
}

void link_test(const char *mountpt)
{
	int i;
	int h;
	char a[100];
	char b[100];
	char c[100];
	
	int  f0;
	int f1;
	int f2;
	int f3;
	sprintf(a,"%s/aaa",mountpt);
	sprintf(b,"%s/bbb",mountpt);
	sprintf(c,"%s/ccc",mountpt);
	
	yaffs_StartUp();
	
	yaffs_mount(mountpt);
	
	
	h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
	for(i = 0; i < 100; i++)
		yaffs_write(h,a,100);
	
	yaffs_close(h);
	
	yaffs_unlink(b);
	yaffs_unlink(c);
	yaffs_link(a,b);
	yaffs_link(a,c);
	yaffs_unlink(b);
	yaffs_unlink(c);
	yaffs_unlink(a);
	
	
	yaffs_unmount(mountpt);
	yaffs_mount(mountpt);
	
	printf("link test done\n");	
	
}

void freespace_test(const char *mountpt)
{
	int i;
	int h;
	char a[100];
	char b[100];
	
	int  f0;
	int f1;
	int f2;
	int f3;
	sprintf(a,"%s/aaa",mountpt);
	
	yaffs_StartUp();
	
	yaffs_mount(mountpt);
	
	f0 = yaffs_freespace(mountpt);
	
	h = yaffs_open(a, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
	
	for(i = 0; i < 100; i++)
		yaffs_write(h,a,100);
	
	yaffs_close(h);
	
	f1 = yaffs_freespace(mountpt);
	
	yaffs_unlink(a);
	
	f2 = yaffs_freespace(mountpt);
	
		
	yaffs_unmount(mountpt);
	yaffs_mount(mountpt);
	
	f3 = yaffs_freespace(mountpt);
	
	printf("%d\n%d\n%d\n%d\n",f0, f1,f2,f3);
	
	
}

void simple_rw_test(const char *mountpt)
{
	int i;
	int h;
	char a[100];
	
	int x;
	int result;

	sprintf(a,"%s/aaa",mountpt);
	
	yaffs_StartUp();
	
	yaffs_mount(mountpt);
	
	yaffs_unlink(a);
	
	h = yaffs_open(a,O_CREAT| O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
	
	for(i = 100000;i < 200000; i++){
		result = yaffs_write(h,&i,sizeof(i));
		
		if(result != 4)
		{
			printf("write error\n");
			exit(1);
		}
	}
	
	//yaffs_close(h);
	
	// h = yaffs_open(a,O_RDWR, S_IREAD | S_IWRITE);
	
	
	yaffs_lseek(h,0,SEEK_SET);
	
	for(i = 100000; i < 200000; i++){
		result = yaffs_read(h,&x,sizeof(x));
		
		if(result != 4 || x != i){
			printf("read error %d %x %x\n",i,result,x);
		}
	}
	
	printf("Simple rw test passed\n");
	
	
	
}


void scan_deleted_files_test(const char *mountpt)
{
	char fn[100];
	char sub[100];
	
	const char *p;
	
	int i;
	int j;
	int k;
	int h;
	
	sprintf(sub,"%s/sdir",mountpt);
	yaffs_StartUp();
	
	for(j = 0; j < 10; j++)
	{
		printf("\n\n>>>>>>> Run %d <<<<<<<<<<<<<\n\n",j);
		yaffs_mount(mountpt);
		yaffs_mkdir(sub,0);
		
		
		p = (j & 0) ? mountpt: sub;
	
		for(i = 0; i < 100; i++)
		{
		  sprintf(fn,"%s/%d",p,i);  
		  
		  if(i & 1)
		  {
			  h = yaffs_open(fn,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
			  for(k = 0; k < 1000; k++)
				  yaffs_write(h,fn,100);
			  yaffs_close(h);
		  }
		  else
		    	yaffs_mkdir(fn,0);
		}
		
		for(i = 0; i < 10; i++)
		{
		  sprintf(fn,"%s/%d",p,i);  
		  if(i & 1) 
		  	yaffs_unlink(fn);
		  else
		  	yaffs_rmdir(fn);
		  
		}
				
		yaffs_unmount(mountpt);
	}
	
	
	

}


void write_10k(int h)
{
   int i;
   const char *s="0123456789";
   for(i = 0; i < 1000; i++)
     yaffs_write(h,s,10);

}
void write_200k_file(const char *fn, const char *fdel, const char *fdel1)
{
   int h1;
   int i;
   int offs;
   
   h1 = yaffs_open(fn, O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
   
   for(i = 0; i < 100000; i+= 10000)
   {
   	write_10k(h1);
   }
   
   offs = yaffs_lseek(h1,0,SEEK_CUR);
   if( offs != 100000)
   {
   	printf("Could not write file\n");
   }
   
   yaffs_unlink(fdel);
   for(i = 0; i < 100000; i+= 10000)
   {
   	write_10k(h1);
   }
   
   offs = yaffs_lseek(h1,0,SEEK_CUR);
   if( offs != 200000)
   {
   	printf("Could not write file\n");
   }
   
   yaffs_close(h1);
   yaffs_unlink(fdel1);
   
}


void verify_200k_file(const char *fn)
{
   int h1;
   int i;
   char x[11];
   const char *s="0123456789";
   int errCount = 0;
   
   h1 = yaffs_open(fn, O_RDONLY, 0);
   
   for(i = 0; i < 200000 && errCount < 10; i+= 10)
   {
   	yaffs_read(h1,x,10);
	if(strncmp(x,s,10) != 0)
	{
		printf("File %s verification failed at %d\n",fn,i);
		errCount++;
	}
   }
   if(errCount >= 10)
   	printf("Too many errors... aborted\n");
      
   yaffs_close(h1);	   
	
}


void check_resize_gc_bug(const char *mountpt)
{

	char a[30];
	char b[30];
	char c[30];
	
	int i;
	
	sprintf(a,"%s/a",mountpt);
	sprintf(b,"%s/b",mountpt);
	sprintf(c,"%s/c",mountpt);
	

	
	
	yaffs_StartUp();
	yaffs_mount(mountpt);
	yaffs_unlink(a);
	yaffs_unlink(b);
	
	for(i = 0; i < 50; i++)
	{  
	   printf("A\n");write_200k_file(a,"",c);
	   printf("B\n");verify_200k_file(a);
	   printf("C\n");write_200k_file(b,a,c);
	   printf("D\n");verify_200k_file(b);
	   yaffs_unmount(mountpt);
	   yaffs_mount(mountpt);
	   printf("E\n");verify_200k_file(a);
	   printf("F\n");verify_200k_file(b);
	}
		
}


void multi_mount_test(const char *mountpt,int nmounts)
{

	char a[30];
	char b[30];
	char c[30];
	
	int i;
	int j;
	
	sprintf(a,"%s/a",mountpt);
	

	
	
	yaffs_StartUp();
	
	for(i = 0; i < nmounts; i++){
		printf("############### Iteration %d   Start\n",i);
		yaffs_mount(mountpt);
		dump_directory_tree(mountpt);
		yaffs_mkdir(a,0);
		for(j = 0; j < i; j++){
			sprintf(b,"%s/%d",a,j);
			verify_200k_file(b);
		}
		sprintf(b,"%s/%d",a,i);

		write_200k_file(b,"","");
		
		printf("######## Iteration %d   End\n",i);
		dump_directory_tree(mountpt);
		
		yaffs_unmount(mountpt);
	}
}


void yaffs_touch(const char *fn)
{
	yaffs_chmod(fn, S_IREAD | S_IWRITE);
}

void checkpoint_fill_test(const char *mountpt,int nmounts)
{

	char a[50];
	char b[50];
	char c[50];
	
	int i;
	int j;
	int h;
	
	sprintf(a,"%s/a",mountpt);
	

	
	
	yaffs_StartUp();
	
	for(i = 0; i < nmounts; i++){
		printf("############### Iteration %d   Start\n",i);
		yaffs_mount(mountpt);
		dump_directory_tree(mountpt);
		yaffs_mkdir(a,0);
		
		sprintf(b,"%s/zz",a);
		
		h = yaffs_open(b,O_CREAT | O_RDWR,S_IREAD |S_IWRITE);
		
		
		while(yaffs_write(h,c,50) == 50){}
		
		yaffs_close(h);
		
		for(j = 0; j < 2; j++){
			printf("touch %d\n",j);
			yaffs_touch(b);
			yaffs_unmount(mountpt);
			yaffs_mount(mountpt);
		}

		dump_directory_tree(mountpt);		
		yaffs_unmount(mountpt);
	}
}


int make_file2(const char *name1, const char *name2,int syz)
{

	char xx[2500];
	int i;
	int h1=-1,h2=-1;
	int n = 1;


	if(name1)
		h1 = yaffs_open(name1,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
	if(name2)
		h2 = yaffs_open(name2,O_CREAT | O_TRUNC | O_RDWR, S_IREAD | S_IWRITE);
	
	while(syz > 0 && n > 0){
		i = (syz > 2500) ? 2500 : syz;
		n = yaffs_write(h1,xx,i);
		n = yaffs_write(h2,xx,i);
		syz -= 500;
	}
	yaffs_close(h1);
	yaffs_close(h2);
	
}


extern void SetCheckpointReservedBlocks(int n);

void checkpoint_upgrade_test(const char *mountpt,int nmounts)
{

	char a[50];
	char b[50];
	char c[50];
	char d[50];
	
	int i;
	int j;
	int h;
	
	sprintf(a,"%s/a",mountpt);
	

	
	
	printf("Create start condition\n");
	yaffs_StartUp();
	SetCheckpointReservedBlocks(0);
	yaffs_mount(mountpt);
	yaffs_mkdir(a,0);
	sprintf(b,"%s/zz",a);
	sprintf(c,"%s/xx",a);
	make_file2(b,c,2000000);
	sprintf(d,"%s/aa",a);
	make_file2(d,NULL,500000000);
	dump_directory_tree(mountpt);
	
	printf("Umount/mount attempt full\n");
	yaffs_unmount(mountpt);
	
	SetCheckpointReservedBlocks(10);
	yaffs_mount(mountpt);
	
	printf("unlink small file\n");
	yaffs_unlink(c);
	dump_directory_tree(mountpt);
		
	printf("Umount/mount attempt\n");
	yaffs_unmount(mountpt);
	yaffs_mount(mountpt);
	
	for(j = 0; j < 500; j++){
		printf("***** touch %d\n",j);
		dump_directory_tree(mountpt);
		yaffs_touch(b);
		yaffs_unmount(mountpt);
		yaffs_mount(mountpt);
	}

	for(j = 0; j < 500; j++){
		printf("***** touch %d\n",j);
		dump_directory_tree(mountpt);
		yaffs_touch(b);
		yaffs_unmount(mountpt);
		yaffs_mount(mountpt);
	}
}
	


int main(int argc, char *argv[])
{
	//return long_test(argc,argv);
	
	//return cache_read_test();
	
	//resize_stress_test_no_grow("/flash",20);
	
	//huge_directory_test_on_path("/ram2k");
	
	 //yaffs_backward_scan_test("/flash/flash");
	// yaffs_device_flush_test("/flash/flash");

	 
	 //scan_pattern_test("/flash",10000,10);
	//short_scan_test("/flash/flash",40000,200);
	 //multi_mount_test("/flash/flash",20);
	 //checkpoint_fill_test("/flash/flash",20);
	 checkpoint_upgrade_test("/flash/flash",20);


	
	//long_test_on_path("/ram2k");
	// long_test_on_path("/flash");
	//simple_rw_test("/flash/flash");
	//fill_disk_test("/flash/flash");
	// rename_over_test("/flash");
	//lookup_test("/flash");
	//freespace_test("/flash/flash");
	
	//link_test("/flash/flash");
	
	
	
	
	// cache_bypass_bug_test();
	
	 //free_space_check();
	 
	 //check_resize_gc_bug("/flash");
	 
	 return 0;
	
}