def __init__(self, *args, **kw):
self.dirtree = CBFSDirtree()
if not ('unittest' in kw and kw['unittest']):
Fuse.__init__(self, *args, **kw)
#print "args: " + str(sys.argv)
#if '-c' in sys.argv:
#i = sys.argv.index('-c')
#if i>=len(sys.argv)-1:
#raise Exception("Configuration file not specified!")
#config = sys.argv[i+1]
#else:
#raise Exception("Configuration file not specified!")
config = "cbfs.conf"
self.chunkstore = ChunkStoreManager(self.dirtree, config)
# passes complete dirtree to other classes (e.g. CBFSFilehandle)
global dirtree
dirtree = self.dirtree
class CBFS(Fuse):
dirtree = None
chunkstore = None
def __init__(self, *args, **kw):
self.dirtree = CBFSDirtree()
if not ('unittest' in kw and kw['unittest']):
Fuse.__init__(self, *args, **kw)
#print "args: " + str(sys.argv)
#if '-c' in sys.argv:
#i = sys.argv.index('-c')
#if i>=len(sys.argv)-1:
#raise Exception("Configuration file not specified!")
#config = sys.argv[i+1]
#else:
#raise Exception("Configuration file not specified!")
config = "cbfs.conf"
self.chunkstore = ChunkStoreManager(self.dirtree, config)
# passes complete dirtree to other classes (e.g. CBFSFilehandle)
global dirtree
dirtree = self.dirtree
def getattr(self, path):
print "getattr(%s)" % path
try:
print "returning path:"
s = self.dirtree.getnode(path).st
s.printme()
return s
except:
print "getattr: node not found"
traceback.print_exc()
return -errno.ENOENT
def readdir(self, path, offset):
print "readdir(%s, %s)" % (path, offset)
try:
dir = self.dirtree.getnode(path)
except:
print "dir not found"
traceback.print_exc()
yield -errno.ENOENT
return
if not isinstance(dir, CBFSDirectory):
print "dir not a directory"
yield -errno.ENOENT
return
yield fuse.Direntry(".")
yield fuse.Direntry("..")
for e in dir.entries:
print "readdir: yielding %s" % dir.entries[e].name
yield dir.entries[e]
def readlink(self, path):
print "readlink(%s)" % path
try:
dir = self.dirtree.getnode(path)
except:
traceback.print_exc()
return -errno.ENOENT
if not isinstance(dir, CBFSSymlink):
return -errno.EACCES
return dir.dest
def unlink(self, path):
print "unlink(%s)" % path
try:
dir = self.dirtree.getnode(path)
if isinstance(dir, CBFSDirectory):
return -errno.EACCES
parent = dir.parent
del(parent.entries[dir.name])
except:
traceback.print_exc()
return -errno.ENOENT
def rmdir(self, path):
print "rmdir(%s)" % path
try:
dir = self.dirtree.getnode(path)
except:
traceback.print_exc()
return -errno.ENOENT
if (not isinstance(dir, CBFSDirectory)) or len(dir.entries)>0:
return -errno.EACCES
parent = dir.parent
print "parent: %s" % parent.name
del(parent.entries[dir.name])
def symlink(self, target, name):
print "symlink(%s, %s)" % (target, name)
(dirname, sep, symname) = name.rpartition("/")
try:
dir = self.dirtree.getnode(dirname)
if not isinstance(dir, CBFSDirectory):
return -errno.EACCES
dir.entries[symname] = CBFSSymlink(symname, dir, target)
except:
traceback.print_exc()
return -errno.ENOENT
def rename(self, path, path1):
print "rename(%s, %s)" % (path, path1)
(dirname1, sep, name1) = path.rpartition("/")
(dirname2, sep, name2) = path1.rpartition("/")
try:
dir1 = self.dirtree.getnode(dirname1)
dir2 = self.dirtree.getnode(dirname2)
entry1 = dir1.entries[name1]
except:
traceback.print_exc()
return -errno.ENOENT
if name2 in dir2.entries:
return -errno.EEXIST
dir2.entries[name2] = entry1
entry1.name = name2;
del(dir1.entries[name1])
#def link(self, path, path1):
def chmod(self, path, mode):
print "chmod(%s, %s)" % (path, mode)
try:
dir = self.dirtree.getnode(path)
except:
traceback.print_exc()
return -errno.ENOENT
dir.st.st_mode = mode
def chown(self, path, user, group):
print "chown(%s, %s, %s)" % (path, user, group)
try:
dir = self.dirtree.getnode(path)
except:
traceback.print_exc()
return -errno.ENOENT
if user>=0: dir.st.st_uid = user
if group>=0: dir.st.st_gid = group
def truncate(self, path, len):
print "truncate(%s, %s)" % (path, len)
fh = CBFSFilehandle(path, None)
fh.truncate(len)
def mknod(self, path, mode, dev):
print "mknod(%s, %s, %s)" % (path, mode, dev)
if not mode&stat.S_IFREG:
return -errno.EOPNOTSUPP
(dirname, sep, newfilename) = path.rpartition("/")
try:
dir = self.dirtree.getnode(dirname)
except:
traceback.print_exc()
return -errno.ENOENT
dir.entries[newfilename] = CBFSFile(newfilename, dir)
def mkdir(self, path, mode):
print "mkdir(%s, %s)" % (path, mode)
(dirname, sep, newdirname) = path.rpartition("/")
try:
dir = self.dirtree.getnode(dirname)
except:
traceback.print_exc()
return -errno.ENOENT
if newdirname in dir.entries:
return -errno.EEXIST
dir.entries[newdirname] = CBFSDirectory(newdirname, dir)
def utime(self, path, times):
print "utime(%s, %s)" % (path, times)
try:
st = self.dirtree.getnode(path).st
st.st_atime = times[0]
st.st_mtime = times[1]
except:
print "utime: node not found (%s)!" % sys.exc_info()[0]
traceback.print_exc()
return -errno.ENOENT
def access(self, path, mode):
print "access(%s, %s): ******** not implemented!" % (path, mode)
return
def setattr(self, path, st):
print "setattr(%s, %s): ******** not implemented!" % (path, st)
print
def statfs(self):
print "statfs()"
csstat = self.chunkstore.getSpaceStat()
stat = fuse.StatVfs()
stat.f_bsize = 1
stat.f_frsize = stat.f_bsize
stat.f_blocks = csstat[1]
stat.f_bfree = csstat[1]-csstat[0]
stat.f_bavail = stat.f_bfree
stat.f_files = csstat[0]
stat.f_ffree = stat.f_bfree
stat.f_favail = stat.f_bfree
return stat
def fsinit(self):
print "fsinit()"
global chunkstore
chunkstore = self.chunkstore
self.dirtree.chunkstore = self.chunkstore
try:
self.dirtree.load()
except Exception, e:
traceback.print_exc()
