def getattr(self, path, fh=None):
if syscalls.exists(path):
return syscalls.getattr(path)
resp = one_time_message(self.bootstrap, method='find', path=path)
if 'errno' in resp:
raise FuseOSError(resp['errno'])
resp = one_time_message(tuple(resp['addr']),
method='getattr',
path=path)
return resp['ret']
def write(self, path, data, offset, fh):
if syscalls.exists(path):
return syscalls.write(path, data, offset)
resp = one_time_message(self.bootstrap, method='find', path=path)
if 'errno' in resp:
raise FuseOSError(resp['errno'])
resp = one_time_message(tuple(resp['addr']),
method='write',
path=path,
data=data.decode(),
offset=offset)
return resp['ret']
def read(self, path, size, offset, fh):
if syscalls.exists(path):
return syscalls.read(path, size, offset)
resp = one_time_message(self.bootstrap, method='find', path=path)
if 'errno' in resp:
raise FuseOSError(resp['errno'])
resp = one_time_message(tuple(resp['addr']),
method='read',
path=path,
size=size,
offset=offset)
return resp['ret'].encode()
def open(self, path, flags):
if syscalls.exists(path):
try:
return syscalls.open(path, flags)
except OSError as e:
raise FuseOSError(e.errno)
resp = one_time_message(self.bootstrap, method='find', path=path)
if 'errno' in resp:
raise FuseOSError(resp['errno'])
resp = one_time_message(tuple(resp['addr']),
method='open',
path=path,
flags=flags)
return resp['ret']
def __init__(self, mountpoint, bootstrap, host_port):
os.system("mkdir -p %s" % syscalls.LOCALSTORAGE_DIR)
sock = listening_socket(host_port)
response = one_time_message(bootstrap, method='join', port=host_port)
filesystem = Filesystem(bootstrap)
thread = Thread(target=listen, args=(sock, ))
thread.daemon = True
thread.start()
atexit.register(shutdown, bootstrap)
fuse = FUSE(filesystem, mountpoint, foreground=True)
def unlink(self, path):
if syscalls.exists(path):
resp = one_time_message(self.bootstrap, method='unlink', path=path)
if 'errno' in resp:
raise FuseOSError(resp['errno'])
syscalls.unlink(path)
return
resp = one_time_message(self.bootstrap, method='find', path=path)
if 'errno' in resp:
raise FuseOSError(resp['errno'])
one_time_message(tuple(resp['addr']), method='unlink', path=path)
one_time_message(self.bootstrap, method='unlink', path=path)
def readdir(self, path, fh):
resp = one_time_message(self.bootstrap, method='readdir')
return resp['ret']
def create(self, path, mode):
resp = one_time_message(self.bootstrap, method='create', path=path)
if 'errno' in resp:
return 0
syscalls.create(path, mode)
return 0
def shutdown(bootstrap):
one_time_message(bootstrap, method='leave')
os.system("rm -rf %s" % syscalls.LOCALSTORAGE_DIR)