def mkdir(filename, directory):
inum = inode_number.get_free_inode()
i = inode_number.inode_number_to_inode(inum)
i.inode_type = FileType.directory
i.add_block()
d_inode = inode_number.inode_number_to_inode(directory)
d_block = inode_number.inode_number_to_block((d_inode.size - 1) * blockLayer._block_size, directory)
data = filename + "|" + str(inum) + ","
d_block.write(d_block.size, data, 0, len(data))
b_string = [""] * d_block.size
b_string = d_block.read(0, b_string, 0, d_block.size)
def ls():
b = inode_number.inode_number_to_block((inode_number.inode_number_to_inode(path_name_layer._wd)).size, path_name_layer._wd)
buf = [''] * b.size
buf = b.read(0, buf, 0, b.size - 1)
d = "".join(buf)
if(0 != b.size):
dic = file_name_layer.createDict(d)
for key in dic.keys():
print "- ", key
else:
print "Empty Directory"
def lookup(filename, directory):
if(valid_filename(filename) == 0):
i = inode_number.inode_number_to_inode(directory)
if (i.inode_type != FileType.directory):
raise Exception ("Not a directory.")
offset = 0
while (offset < i.size):
b = inode_number.inode_number_to_block(offset, directory)
if (string_match(filename, b)):
return inode_num(filename, b) # may need to be returned as an int
offset = offset + blockLayer._block_size
return 0
else:
raise Exception("The filename %s is not a valid name." % filename)
