def sync(self):
(serialized, imap_num) = inodemap.inodemap.save_inode_map(get_max_inode())
special_inode = Inode()
special_inode.write(0, serialized)
imap_loc = inodemap.inodemap.lookup(special_inode.id)
segment.segman.update_imap_postion(imap_loc, imap_num)
segment.segman.flush()
def sync(self):
(serialized,
imap_num) = inodemap.inodemap.save_inode_map(get_max_inode())
special_inode = Inode()
special_inode.write(0, serialized)
imap_loc = inodemap.inodemap.lookup(special_inode.id)
segment.segman.update_imap_postion(imap_loc, imap_num)
segment.segman.flush()
def unlink(self, path):
filename = find_filename(path)
parent_inode_no = self.search_dir(find_parent(path))
parent_inode_block = inodemap.inodemap.lookup(parent_inode_no)
parent_inode = Inode(data=segment.segman.block_read(parent_inode_block))
parent_old_size = parent_inode.filesize
parent_dir = Directory(parent_inode_no)
found_entry = False
entries = []
for (name, inode) in parent_dir.enumerate():
if found_entry:
entries.append((name, inode))
if name == filename:
fount = True
position = parent_dir.position - (FILENAMELEN + 4)
for (name, inode) in entries:
parent_inode.write(position, struct.pack("%dsI" % FILENAMELEN, name, inode))
position += FILENAMELEN + 4
parent_inode.filesize = parent_old_size - (FILENAMELEN + 4)
inodemap.inodemap.update_inode(parent_inode_no, parent_inode.serialize())
def unlink(self, path):
filename = find_filename(path)
parent_inode_no = self.search_dir(find_parent(path))
parent_inode_block = inodemap.inodemap.lookup(parent_inode_no)
parent_inode = Inode(
data=segment.segman.block_read(parent_inode_block))
parent_old_size = parent_inode.filesize
parent_dir = Directory(parent_inode_no)
found_entry = False
entries = []
for (name, inode) in parent_dir.enumerate():
if found_entry:
entries.append((name, inode))
if name == filename:
fount = True
position = parent_dir.position - (FILENAMELEN + 4)
for (name, inode) in entries:
parent_inode.write(position,
struct.pack("%dsI" % FILENAMELEN, name, inode))
position += (FILENAMELEN + 4)
parent_inode.filesize = parent_old_size - (FILENAMELEN + 4)
inodemap.inodemap.update_inode(parent_inode_no,
parent_inode.serialize())
