def link ( self, targetPath, linkPath ):
nodetok = linkpath.split('/')
lname = nodetok[len(nodetok)-1]
nodetok.remove(lname)
dir = ""
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.FSData.findNode(dir)
if dirnode == None:
return -errno.ENOENT
tnode = self.FSData.findNode(targetPath)
if tnode == None:
return -errno.ENOENT
lnode = KeyLayoutElement(lname)
lnode.runtimeSetup()
ndnode.stat.st_mode = S_IFLNK | 0777
lnode.target_path = targetPath
dirnode.addChild(lnode)
return 0
def link(self, targetPath, linkPath):
nodetok = linkpath.split('/')
lname = nodetok[len(nodetok) - 1]
nodetok.remove(lname)
dir = ""
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.FSData.findNode(dir)
if dirnode == None:
return -errno.ENOENT
tnode = self.FSData.findNode(targetPath)
if tnode == None:
return -errno.ENOENT
lnode = KeyLayoutElement(lname)
lnode.runtimeSetup()
ndnode.stat.st_mode = S_IFLNK | 0777
lnode.target_path = targetPath
dirnode.addChild(lnode)
return 0
def rename(self, oldPath, newPath):
oldnode = self.FSData.findNode(oldPath)
if oldnode == None:
return -errno.ENOENT
newnode = self.FSData.findNode(newPath)
if newnode != None:
return -errno.EEXIST
newntok = newPath.split('/')
newname = newntok[len(newntok) - 1]
newntok.remove(newname)
dir = ""
for i in newntok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
newdirnode = self.FSData.findNode(dir)
if newdirnode == None:
return -errno.ENOENT
newnode = KeyLayoutElement(newname)
newnode.runtimeSetup()
newnode.stat = oldnode.stat
newdirnode.addChild(newnode)
newfile = newnode.open(self, os.O_RDWR | os.O_CREAT)
oldfile = oldnode.open(self, os.O_RDWR)
newnode.iolock.acquire()
oldnode.iolock.acquire()
shutil.copyfileobj(oldfile, newfile)
newnode.dirty = True
newnode.iolock.release()
oldnode.iolock.release()
newnode.close(self)
oldnode.close(self)
oldnode.delete(self)
return 0
class MetaData:
def __init__(self):
self.version = 2
self.size_unlimited = True
self.root = KeyLayoutElement('/')
self.root.runtimeSetup()
def findNode(self, name):
if name == "/":
return self.root
tokens = name.split("/")
return self.root.pathWalk(tokens)
def cloneForSave(self):
clone = MetaData()
clone.root = None
clone.version = self.version
clone.size_unlimited = self.size_unlimited
clone.root = self.root.cloneSubtree()
return clone
def mkdir ( self, path, mode ):
nodetok = path.split('/')
newdir = nodetok[len(nodetok)-1]
nodetok.remove(newdir)
dir = ""
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.FSData.findNode(dir)
if dirnode == None:
return -errno.ENOENT
ndnode = KeyLayoutElement(newdir)
ndnode.runtimeSetup()
ndnode.stat.st_mode = stat.S_IFDIR | mode
dirnode.addChild(ndnode)
return 0
def mkdir(self, path, mode):
nodetok = path.split('/')
newdir = nodetok[len(nodetok) - 1]
nodetok.remove(newdir)
dir = ""
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.FSData.findNode(dir)
if dirnode == None:
return -errno.ENOENT
ndnode = KeyLayoutElement(newdir)
ndnode.runtimeSetup()
ndnode.stat.st_mode = stat.S_IFDIR | mode
dirnode.addChild(ndnode)
return 0
def __init__(self, path, flags, *mode):
self.file = None
self.direct_io = True
self.keep_cache = "no"
self.node = None
node = self.myFS.FSData.findNode(path)
nodetok = path.split('/')
dir=""
filename = nodetok[len(nodetok)-1]
nodetok.remove(filename)
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.myFS.FSData.findNode(dir)
if dirnode == None:
return None
if node == None:
#Check to see if we are supposed to be creating a file
if (flags & os.O_CREAT) == os.O_CREAT:
node = KeyLayoutElement(filename)
node.runtimeSetup()
node.stat.st_mode = stat.S_IFREG | 0755
node.sha_sum = ''
dirnode.addChild(node)
else:
return None
else:
if (flags & os.O_EXCL) == os.O_EXCL:
return None
self.file = node.open(self.myFS, flags)
self.fd = self.file.fileno()
self.node = node
return None
def mknod ( self, path, mode, dev ):
node = self.FSData.findNode(path)
if node != None:
return -errno.EEXIST
nodetok = path.split('/')
dir=""
filename = nodetok[len(nodetok)-1]
nodetok.remove(filename)
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.FSData.findNode(dir)
file = KeyLayoutElement(filename)
file.runtimeSetup()
file.stat.st_mode = mode
dirnode.addChild(file)
node = self.FSData.findNode(path)
fd = file.open(self)
fd.close()
return 0
def mknod(self, path, mode, dev):
node = self.FSData.findNode(path)
if node != None:
return -errno.EEXIST
nodetok = path.split('/')
dir = ""
filename = nodetok[len(nodetok) - 1]
nodetok.remove(filename)
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.FSData.findNode(dir)
file = KeyLayoutElement(filename)
file.runtimeSetup()
file.stat.st_mode = mode
dirnode.addChild(file)
node = self.FSData.findNode(path)
fd = file.open(self)
fd.close()
return 0
def rename ( self, oldPath, newPath ):
oldnode = self.FSData.findNode(oldPath)
if oldnode == None:
return -errno.ENOENT
newnode = self.FSData.findNode(newPath)
if newnode != None:
return -errno.EEXIST
newntok = newPath.split('/')
newname = newntok[len(newntok)-1]
newntok.remove(newname)
dir = ""
for i in newntok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
newdirnode = self.FSData.findNode(dir)
if newdirnode == None:
return -errno.ENOENT
newnode = KeyLayoutElement(newname)
newnode.runtimeSetup()
newnode.stat = oldnode.stat
newdirnode.addChild(newnode)
newfile = newnode.open(self, os.O_RDWR|os.O_CREAT)
oldfile = oldnode.open(self, os.O_RDWR)
newnode.iolock.acquire()
oldnode.iolock.acquire()
shutil.copyfileobj(oldfile,newfile)
newnode.dirty = True
newnode.iolock.release()
oldnode.iolock.release()
newnode.close(self)
oldnode.close(self)
oldnode.delete(self)
return 0
def __init__(self, path, flags, *mode):
self.file = None
self.direct_io = True
self.keep_cache = "no"
self.node = None
node = self.myFS.FSData.findNode(path)
nodetok = path.split('/')
dir = ""
filename = nodetok[len(nodetok) - 1]
nodetok.remove(filename)
for i in nodetok:
if i != '':
dir = dir + "/" + i
if dir == "":
dir = "/"
dirnode = self.myFS.FSData.findNode(dir)
if dirnode == None:
return None
if node == None:
#Check to see if we are supposed to be creating a file
if (flags & os.O_CREAT) == os.O_CREAT:
node = KeyLayoutElement(filename)
node.runtimeSetup()
node.stat.st_mode = stat.S_IFREG | 0755
node.sha_sum = ''
dirnode.addChild(node)
else:
return None
else:
if (flags & os.O_EXCL) == os.O_EXCL:
return None
self.file = node.open(self.myFS, flags)
self.fd = self.file.fileno()
self.node = node
return None
def __init__(self):
self.version = 2
self.size_unlimited = True
self.root = KeyLayoutElement('/')
self.root.runtimeSetup()