static void romident(const char *filename, romident_status *status)
{
osd_directory *directory;
/* reset the status */
memset(status, 0, sizeof(*status));
/* first try to open as a directory */
directory = osd_opendir(filename);
if (directory != NULL)
{
const osd_directory_entry *entry;
/* iterate over all files in the directory */
while ((entry = osd_readdir(directory)) != NULL)
if (entry->type == ENTTYPE_FILE)
{
astring *curfile = astring_assemble_3(astring_alloc(), filename, PATH_SEPARATOR, entry->name);
identify_file(astring_c(curfile), status);
astring_free(curfile);
}
osd_closedir(directory);
}
/* if that failed, and the filename ends with .zip, identify as a ZIP file */
else if (core_filename_ends_with(filename, ".zip"))
{
/* first attempt to examine it as a valid ZIP file */
zip_file *zip = NULL;
zip_error ziperr = zip_file_open(filename, &zip);
if (ziperr == ZIPERR_NONE && zip != NULL)
{
const zip_file_header *entry;
/* loop over entries in the ZIP, skipping empty files and directories */
for (entry = zip_file_first_file(zip); entry; entry = zip_file_next_file(zip))
if (entry->uncompressed_length != 0)
{
UINT8 *data = (UINT8 *)malloc(entry->uncompressed_length);
if (data != NULL)
{
/* decompress data into RAM and identify it */
ziperr = zip_file_decompress(zip, data, entry->uncompressed_length);
if (ziperr == ZIPERR_NONE)
identify_data(entry->filename, data, entry->uncompressed_length, status);
free(data);
}
}
/* close up */
zip_file_close(zip);
}
}
/* otherwise, identify as a raw file */
else
identify_file(filename, status);
}
struct image *gfx_load( char *filename, int *error, Tag tags, ... )
{
FILE *fp=NULL;
struct image *image=NULL;
struct imageio *io=NULL;
int err;
if( !ios )
{
if( error ) *error=ERR_UNKNOWNFORMAT;
return( NULL );
}
if( !( fp=fopen( filename, "rb" ) ) )
{
if( error ) *error=ERR_FILE;
return( NULL );
}
io=identify_file( fp, filename, error );
/* We have a possitive ID on the file */
if( io )
{
if( !io->io_load )
{
fclose( fp );
if( error ) *error=ERR_LOADNOTPOSSIBLE;
return( NULL );
}
if( !( image=gfx_new0( struct image, 1 ) ) )
{
fclose( fp );
if( error ) *error=ERR_MEM;
return( NULL );
}
err=io->io_load( fp, image, (struct TagItem *)&tags );
if( err )
{
free( image );
fclose( fp );
if( error ) *error=err;
return( FALSE );
}
}
else
{
if( error ) *error=ERR_UNKNOWNFORMAT;
/*main*/
void HariMain(void){
fs_pid=get_pid();
while(identify_hd()==FALSE);
while(identify_fs()==FALSE);//读取superBlock
/*如果硬盘上不存在文件系统，则新建一个。注：约定tinyOS文件系统的superBlock前5字节为字符串“TINY”*/
if(strcmp(superBlock.sign,"TINY")==FALSE)
{
create_fs();
identify_fs();/*因为之前读取的可能无效，当文件系统不存在时*/
}
read_hd_bmp ();
read_fat();
while(1)
{
receive(&msg_recv,STATUS_RECV_ANY,0,fs_pid);
u_int32 recv_type=msg_recv.type;
u_int32 send_pid =msg_recv.send_pid;
switch(recv_type)
{
case FILE_MSG_TYPE:
{
struct FILE_MSG *msg =&msg_recv.u.msg_file;
u_int32 file_msg_type=msg->type ;
int8*file_name =msg->file_name ;
void*buf =msg->buf ;
u_int32 buf_len =msg->buf_len ;
u_int32 handle =msg->handle ;
u_int32 result ;
struct I_NODE*inode =msg->inode ;
switch(file_msg_type)
{
case FILE_IDENTIFY:
if(identify_file(handle,inode,send_pid)==TRUE )
awake(send_pid,TRUE );
else
awake(send_pid,FALSE );
break;
case FILE_OPEN :
handle=open_file(file_name,send_pid);
awake(send_pid,handle);
break;
case FILE_READ :
if((result=read_file(handle,buf_len,buf,send_pid))!=FALSE)
awake(send_pid,result );
else
awake(send_pid,FALSE );
break;
case FILE_WRITE :
if(write_file(handle,buf_len,buf,send_pid)==TRUE )
awake(send_pid,TRUE );
else
awake(send_pid,FALSE);
break;
case FILE_CREATE :
if(create_file(file_name,send_pid)==TRUE )
awake(send_pid,TRUE );
else
awake(send_pid,FALSE);
break;
case FILE_DELETE :
if(delete_file(handle,send_pid)==TRUE )
awake(send_pid,TRUE );
else
awake(send_pid,FALSE );
break;
case POWER_OFF :
write_back( );
awake(send_pid,TRUE );
break;
default:
awake(send_pid,FALSE );
break;
}
break;
}
default:
break;
}
}
}
