def readdir(self, path, offset):
print "readdir", path
yield fuse.Direntry('.')
yield fuse.Direntry('..')
FSobj = FileSystem()
all_files = FSobj.ls()
print "Rest of the files in root dir"
for i in all_files:
if str(i) == path:
continue
if (len(i.split(path))==2):
print "%s" %i
strpath = i.split(path)
strpath = strpath[1]
if path == '/':
yield fuse.Direntry(str(i[1:]))
elif (len(strpath.split('/')) > 2):
continue
else:
size=len(path) + 1
yield fuse.Direntry(str(i[size:]))
def access(self, path, flag):
print "access path=%s" %path
FSobj = FileSystem()
if FSobj.search(path) is True:
print "In access, found the file %s" %path
return 0
else:
print "Could not find the file %s" %path
return -errno.EACCES
def read(self, path, size, offset): try: print "In read %s %d %d" %(path, size, offset) FSobj = FileSystem() return_value = FSobj.read(path) print "read(): %s" %(return_value[:-1]) fbuf = StringIO() fbuf.write(str(return_value[:-1])) return fbuf.getvalue() except Exception, e: print "read failed" return e
def release(self, path, flags): print "In release" if self.is_dirty is True: print "Flushing buffer" print self.buf.read() FSobj = FileSystem() return_value = FSobj.write(path, self.buf.read()) print self.buf.read() #self.buf.close() #del self.buf self.is_dirty = False print return_value return 0
def getattr(self, path):
FSobj = FileSystem()
st = fuse.Stat()
c = fuse.FuseGetContext()
return_value = FSobj.search(path)
print "Already present =", return_value
if return_value is True:
st.st_ino = int(FSobj.getinode(path))
st.st_uid, st.st_gid = (c['uid'], c['gid'])
st.st_mode = FSobj.getmode(path)
st.st_nlink = FSobj.getlinkcount(path)
if FSobj.getlength(path) is not None:
st.st_size = int(FSobj.getlength(path))
else:
st.st_size = 0
tup = FSobj.getutime(path)
st.st_mtime = int(tup[0].strip().split('.')[0])
st.st_ctime = int(tup[1].strip().split('.')[0])
st.st_atime = int(tup[2].strip().split('.')[0])
print "inode numder = %d" %st.st_ino
return st
else:
return - errno.ENOENT
def write(self, path, data, offset): print "In write path=%s" %path length = len(data) print "The data is %s len=%d offset=%d" %(str(data), length, offset) FSobj = FileSystem() prev = FSobj.read(path) data = prev + data return_value = FSobj.write(path, data) current_time = int(time.time()) return_value = FSobj.set_writetime(path, current_time) return length
def create(self, path, mode, flags): FSobj = FileSystem() return_value = self.open(path, flags) if return_value == -errno.ENOENT: return_value = FSobj.open(path) print "Creating the file %s" %path current_time = int(time.time()) new_time = (current_time, current_time, current_time) return_value = FSobj.utime(path, new_time) self.fd = len(FSobj.ls()) print "In create:fd = %d" %(self.fd) FSobj.setinode(path, self.fd) st = fuse.Stat() if path == '/': st.st_nlink = 2 st.st_mode = stat.S_IFDIR | 0755 if flags == 1: st.st_nlink = 2 st.st_mode = stat.S_IFDIR | 0755 else: st.st_mode = stat.S_IFREG | 0777 st.st_nlink = 1 FSobj.set_id(path, self.gid, self.uid,st.st_mode,st.st_nlink) else: print "The file %s exists!!" %path return 0
def __init__(self, *args, **kw):
fuse.Fuse.__init__(self, *args, **kw)
self.flags = 0
self.multithreaded = 0
self.fd = 0
self.gid = os.getgid()
self.uid = os.geteuid()
self.FSobj = FileSystem()
self.FSobj.open('/')
return_value = self.FSobj.search('/')
if return_value is False:
print "Created root with %s" %return_value
self.FSobj.write('/', "Root")
times = int(time.time())
mytime = (times, times, times)
return_value = self.FSobj.utime('/', mytime)
self.FSobj.setinode('/', 1)
self.FSobj.setmode('/', stat.S_IFDIR | 0755)
self.FSobj.setlinkcount('/', 2)
self.is_dirty = False
''' def getdir(self, path):
class MyFS(fuse.Fuse):
def __init__(self, *args, **kw):
fuse.Fuse.__init__(self, *args, **kw)
self.flags = 0
self.multithreaded = 0
self.fd = 0
self.gid = os.getgid()
self.uid = os.geteuid()
self.FSobj = FileSystem()
self.FSobj.open('/')
return_value = self.FSobj.search('/')
if return_value is False:
print "Created root with %s" %return_value
self.FSobj.write('/', "Root")
times = int(time.time())
mytime = (times, times, times)
return_value = self.FSobj.utime('/', mytime)
self.FSobj.setinode('/', 1)
self.FSobj.setmode('/', stat.S_IFDIR | 0755)
self.FSobj.setlinkcount('/', 2)
self.is_dirty = False
''' def getdir(self, path):
print "in getdir"
'''
def getattr(self, path):
FSobj = FileSystem()
st = fuse.Stat()
c = fuse.FuseGetContext()
return_value = FSobj.search(path)
print "Already present =", return_value
if return_value is True:
st.st_ino = int(FSobj.getinode(path))
st.st_uid, st.st_gid = (c['uid'], c['gid'])
st.st_mode = FSobj.getmode(path)
st.st_nlink = FSobj.getlinkcount(path)
if FSobj.getlength(path) is not None:
st.st_size = int(FSobj.getlength(path))
else:
st.st_size = 0
tup = FSobj.getutime(path)
st.st_mtime = int(tup[0].strip().split('.')[0])
st.st_ctime = int(tup[1].strip().split('.')[0])
st.st_atime = int(tup[2].strip().split('.')[0])
print "inode numder = %d" %st.st_ino
return st
else:
return - errno.ENOENT
#----------------executable----------------------------------
def readdir(self, path, offset):
print "readdir", path
yield fuse.Direntry('.')
yield fuse.Direntry('..')
FSobj = FileSystem()
all_files = FSobj.ls()
print "Rest of the files in root dir"
for i in all_files:
if str(i) == path:
continue
if (len(i.split(path))==2):
print "%s" %i
strpath = i.split(path)
strpath = strpath[1]
if path == '/':
yield fuse.Direntry(str(i[1:]))
elif (len(strpath.split('/')) > 2):
continue
else:
size=len(path) + 1
yield fuse.Direntry(str(i[size:]))
def open(self, path, flags):
FSobj = FileSystem()
return_value = FSobj.search(path)
if return_value is True:
return 0
return -errno.ENOENT
#----------------executable----------------------------------
def mkdir(self, path, mode):
flags = 1
self.create(path, mode| stat.S_IFDIR,flags)
return 0
#----------------executable----------------------------------
def rmdir(self, path):
print "In rmDir"
FSobj = FileSystem()
return_value = FSobj.remove(path)
return 0
def create(self, path, mode, flags):
FSobj = FileSystem()
return_value = self.open(path, flags)
if return_value == -errno.ENOENT:
return_value = FSobj.open(path)
print "Creating the file %s" %path
current_time = int(time.time())
new_time = (current_time, current_time, current_time)
return_value = FSobj.utime(path, new_time)
self.fd = len(FSobj.ls())
print "In create:fd = %d" %(self.fd)
FSobj.setinode(path, self.fd)
st = fuse.Stat()
if path == '/':
st.st_nlink = 2
st.st_mode = stat.S_IFDIR | 0755
if flags == 1:
st.st_nlink = 2
st.st_mode = stat.S_IFDIR | 0755
else:
st.st_mode = stat.S_IFREG | 0777
st.st_nlink = 1
FSobj.set_id(path, self.gid, self.uid,st.st_mode,st.st_nlink)
else:
print "The file %s exists!!" %path
return 0
def write(self, path, data, offset):
print "In write path=%s" %path
length = len(data)
print "The data is %s len=%d offset=%d" %(str(data), length, offset)
FSobj = FileSystem()
prev = FSobj.read(path)
data = prev + data
return_value = FSobj.write(path, data)
current_time = int(time.time())
return_value = FSobj.set_writetime(path, current_time)
return length
def release(self, path, flags):
print "In release"
if self.is_dirty is True:
print "Flushing buffer"
print self.buf.read()
FSobj = FileSystem()
return_value = FSobj.write(path, self.buf.read())
print self.buf.read()
#self.buf.close()
#del self.buf
self.is_dirty = False
print return_value
return 0
def access(self, path, flag):
print "access path=%s" %path
FSobj = FileSystem()
if FSobj.search(path) is True:
print "In access, found the file %s" %path
return 0
else:
print "Could not find the file %s" %path
return -errno.EACCES
def read(self, path, size, offset):
try:
print "In read %s %d %d" %(path, size, offset)
FSobj = FileSystem()
return_value = FSobj.read(path)
print "read(): %s" %(return_value[:-1])
fbuf = StringIO()
fbuf.write(str(return_value[:-1]))
return fbuf.getvalue()
except Exception, e:
print "read failed"
return e
def unlink(self,path): print "In unlink path %s" %path FSobj = FileSystem() return_value = FSobj.remove(path) return
def utime(self, path, times=None): atime, mtime = times FSobj = FileSystem() return_value = FSobj.utime(path, (atime, mtime, atime)) return 0
def rmdir(self, path): print "In rmDir" FSobj = FileSystem() return_value = FSobj.remove(path) return 0
def open(self, path, flags): FSobj = FileSystem() return_value = FSobj.search(path) if return_value is True: return 0 return -errno.ENOENT
