--- /dev/null
+# Copyright (c) 2008 Giorgos Verigakis <verigak@gmail.com>
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+from __future__ import division
+
+from ctypes import *
+from ctypes.util import find_library
+from errno import *
+from functools import partial
+from os import strerror
+from platform import machine, system
+from stat import S_IFDIR
+from traceback import print_exc
+
+
+class c_timespec(Structure):
+ _fields_ = [('tv_sec', c_long), ('tv_nsec', c_long)]
+
+class c_utimbuf(Structure):
+ _fields_ = [('actime', c_timespec), ('modtime', c_timespec)]
+
+class c_stat(Structure):
+ pass # Platform dependent
+
+_system = system()
+if _system in ('Darwin', 'FreeBSD'):
+ _libiconv = CDLL(find_library("iconv"), RTLD_GLOBAL) # libfuse dependency
+ ENOTSUP = 45
+ c_dev_t = c_int32
+ c_fsblkcnt_t = c_ulong
+ c_fsfilcnt_t = c_ulong
+ c_gid_t = c_uint32
+ c_mode_t = c_uint16
+ c_off_t = c_int64
+ c_pid_t = c_int32
+ c_uid_t = c_uint32
+ setxattr_t = CFUNCTYPE(c_int, c_char_p, c_char_p, POINTER(c_byte),
+ c_size_t, c_int, c_uint32)
+ getxattr_t = CFUNCTYPE(c_int, c_char_p, c_char_p, POINTER(c_byte),
+ c_size_t, c_uint32)
+ c_stat._fields_ = [
+ ('st_dev', c_dev_t),
+ ('st_ino', c_uint32),
+ ('st_mode', c_mode_t),
+ ('st_nlink', c_uint16),
+ ('st_uid', c_uid_t),
+ ('st_gid', c_gid_t),
+ ('st_rdev', c_dev_t),
+ ('st_atimespec', c_timespec),
+ ('st_mtimespec', c_timespec),
+ ('st_ctimespec', c_timespec),
+ ('st_size', c_off_t),
+ ('st_blocks', c_int64),
+ ('st_blksize', c_int32)]
+elif _system == 'Linux':
+ ENOTSUP = 95
+ c_dev_t = c_ulonglong
+ c_fsblkcnt_t = c_ulonglong
+ c_fsfilcnt_t = c_ulonglong
+ c_gid_t = c_uint
+ c_mode_t = c_uint
+ c_off_t = c_longlong
+ c_pid_t = c_int
+ c_uid_t = c_uint
+ setxattr_t = CFUNCTYPE(c_int, c_char_p, c_char_p, POINTER(c_byte), c_size_t, c_int)
+ getxattr_t = CFUNCTYPE(c_int, c_char_p, c_char_p, POINTER(c_byte), c_size_t)
+
+ _machine = machine()
+ if _machine == 'x86_64':
+ c_stat._fields_ = [
+ ('st_dev', c_dev_t),
+ ('st_ino', c_ulong),
+ ('st_nlink', c_ulong),
+ ('st_mode', c_mode_t),
+ ('st_uid', c_uid_t),
+ ('st_gid', c_gid_t),
+ ('__pad0', c_int),
+ ('st_rdev', c_dev_t),
+ ('st_size', c_off_t),
+ ('st_blksize', c_long),
+ ('st_blocks', c_long),
+ ('st_atimespec', c_timespec),
+ ('st_mtimespec', c_timespec),
+ ('st_ctimespec', c_timespec)]
+ elif _machine == 'ppc':
+ c_stat._fields_ = [
+ ('st_dev', c_dev_t),
+ ('st_ino', c_ulonglong),
+ ('st_mode', c_mode_t),
+ ('st_nlink', c_uint),
+ ('st_uid', c_uid_t),
+ ('st_gid', c_gid_t),
+ ('st_rdev', c_dev_t),
+ ('__pad2', c_ushort),
+ ('st_size', c_off_t),
+ ('st_blksize', c_long),
+ ('st_blocks', c_longlong),
+ ('st_atimespec', c_timespec),
+ ('st_mtimespec', c_timespec),
+ ('st_ctimespec', c_timespec)]
+ else:
+ # i686, use as fallback for everything else
+ c_stat._fields_ = [
+ ('st_dev', c_dev_t),
+ ('__pad1', c_ushort),
+ ('__st_ino', c_ulong),
+ ('st_mode', c_mode_t),
+ ('st_nlink', c_uint),
+ ('st_uid', c_uid_t),
+ ('st_gid', c_gid_t),
+ ('st_rdev', c_dev_t),
+ ('__pad2', c_ushort),
+ ('st_size', c_off_t),
+ ('st_blksize', c_long),
+ ('st_blocks', c_longlong),
+ ('st_atimespec', c_timespec),
+ ('st_mtimespec', c_timespec),
+ ('st_ctimespec', c_timespec),
+ ('st_ino', c_ulonglong)]
+else:
+ raise NotImplementedError('%s is not supported.' % _system)
+
+
+class c_statvfs(Structure):
+ _fields_ = [
+ ('f_bsize', c_ulong),
+ ('f_frsize', c_ulong),
+ ('f_blocks', c_fsblkcnt_t),
+ ('f_bfree', c_fsblkcnt_t),
+ ('f_bavail', c_fsblkcnt_t),
+ ('f_files', c_fsfilcnt_t),
+ ('f_ffree', c_fsfilcnt_t),
+ ('f_favail', c_fsfilcnt_t)]
+
+if _system == 'FreeBSD':
+ c_fsblkcnt_t = c_uint64
+ c_fsfilcnt_t = c_uint64
+ setxattr_t = CFUNCTYPE(c_int, c_char_p, c_char_p, POINTER(c_byte), c_size_t, c_int)
+ getxattr_t = CFUNCTYPE(c_int, c_char_p, c_char_p, POINTER(c_byte), c_size_t)
+ class c_statvfs(Structure):
+ _fields_ = [
+ ('f_bavail', c_fsblkcnt_t),
+ ('f_bfree', c_fsblkcnt_t),
+ ('f_blocks', c_fsblkcnt_t),
+ ('f_favail', c_fsfilcnt_t),
+ ('f_ffree', c_fsfilcnt_t),
+ ('f_files', c_fsfilcnt_t),
+ ('f_bsize', c_ulong),
+ ('f_flag', c_ulong),
+ ('f_frsize', c_ulong)]
+
+class fuse_file_info(Structure):
+ _fields_ = [
+ ('flags', c_int),
+ ('fh_old', c_ulong),
+ ('writepage', c_int),
+ ('direct_io', c_uint, 1),
+ ('keep_cache', c_uint, 1),
+ ('flush', c_uint, 1),
+ ('padding', c_uint, 29),
+ ('fh', c_uint64),
+ ('lock_owner', c_uint64)]
+
+class fuse_context(Structure):
+ _fields_ = [
+ ('fuse', c_voidp),
+ ('uid', c_uid_t),
+ ('gid', c_gid_t),
+ ('pid', c_pid_t),
+ ('private_data', c_voidp)]
+
+class fuse_operations(Structure):
+ _fields_ = [
+ ('getattr', CFUNCTYPE(c_int, c_char_p, POINTER(c_stat))),
+ ('readlink', CFUNCTYPE(c_int, c_char_p, POINTER(c_byte), c_size_t)),
+ ('getdir', c_voidp), # Deprecated, use readdir
+ ('mknod', CFUNCTYPE(c_int, c_char_p, c_mode_t, c_dev_t)),
+ ('mkdir', CFUNCTYPE(c_int, c_char_p, c_mode_t)),
+ ('unlink', CFUNCTYPE(c_int, c_char_p)),
+ ('rmdir', CFUNCTYPE(c_int, c_char_p)),
+ ('symlink', CFUNCTYPE(c_int, c_char_p, c_char_p)),
+ ('rename', CFUNCTYPE(c_int, c_char_p, c_char_p)),
+ ('link', CFUNCTYPE(c_int, c_char_p, c_char_p)),
+ ('chmod', CFUNCTYPE(c_int, c_char_p, c_mode_t)),
+ ('chown', CFUNCTYPE(c_int, c_char_p, c_uid_t, c_gid_t)),
+ ('truncate', CFUNCTYPE(c_int, c_char_p, c_off_t)),
+ ('utime', c_voidp), # Deprecated, use utimens
+ ('open', CFUNCTYPE(c_int, c_char_p, POINTER(fuse_file_info))),
+ ('read', CFUNCTYPE(c_int, c_char_p, POINTER(c_byte), c_size_t, c_off_t,
+ POINTER(fuse_file_info))),
+ ('write', CFUNCTYPE(c_int, c_char_p, POINTER(c_byte), c_size_t, c_off_t,
+ POINTER(fuse_file_info))),
+ ('statfs', CFUNCTYPE(c_int, c_char_p, POINTER(c_statvfs))),
+ ('flush', CFUNCTYPE(c_int, c_char_p, POINTER(fuse_file_info))),
+ ('release', CFUNCTYPE(c_int, c_char_p, POINTER(fuse_file_info))),
+ ('fsync', CFUNCTYPE(c_int, c_char_p, c_int, POINTER(fuse_file_info))),
+ ('setxattr', setxattr_t),
+ ('getxattr', getxattr_t),
+ ('listxattr', CFUNCTYPE(c_int, c_char_p, POINTER(c_byte), c_size_t)),
+ ('removexattr', CFUNCTYPE(c_int, c_char_p, c_char_p)),
+ ('opendir', CFUNCTYPE(c_int, c_char_p, POINTER(fuse_file_info))),
+ ('readdir', CFUNCTYPE(c_int, c_char_p, c_voidp, CFUNCTYPE(c_int, c_voidp,
+ c_char_p, POINTER(c_stat), c_off_t), c_off_t, POINTER(fuse_file_info))),
+ ('releasedir', CFUNCTYPE(c_int, c_char_p, POINTER(fuse_file_info))),
+ ('fsyncdir', CFUNCTYPE(c_int, c_char_p, c_int, POINTER(fuse_file_info))),
+ ('init', CFUNCTYPE(c_voidp, c_voidp)),
+ ('destroy', CFUNCTYPE(c_voidp, c_voidp)),
+ ('access', CFUNCTYPE(c_int, c_char_p, c_int)),
+ ('create', CFUNCTYPE(c_int, c_char_p, c_mode_t, POINTER(fuse_file_info))),
+ ('ftruncate', CFUNCTYPE(c_int, c_char_p, c_off_t, POINTER(fuse_file_info))),
+ ('fgetattr', CFUNCTYPE(c_int, c_char_p, POINTER(c_stat),
+ POINTER(fuse_file_info))),
+ ('lock', CFUNCTYPE(c_int, c_char_p, POINTER(fuse_file_info), c_int, c_voidp)),
+ ('utimens', CFUNCTYPE(c_int, c_char_p, POINTER(c_utimbuf))),
+ ('bmap', CFUNCTYPE(c_int, c_char_p, c_size_t, POINTER(c_ulonglong)))]
+
+
+def time_of_timespec(ts):
+ return ts.tv_sec + ts.tv_nsec / 10 ** 9
+
+def set_st_attrs(st, attrs):
+ for key, val in attrs.items():
+ if key in ('st_atime', 'st_mtime', 'st_ctime'):
+ timespec = getattr(st, key + 'spec')
+ timespec.tv_sec = int(val)
+ timespec.tv_nsec = int((val - timespec.tv_sec) * 10 ** 9)
+ elif hasattr(st, key):
+ setattr(st, key, val)
+
+
+_libfuse_path = find_library('fuse')
+if not _libfuse_path:
+ raise EnvironmentError('Unable to find libfuse')
+_libfuse = CDLL(_libfuse_path)
+_libfuse.fuse_get_context.restype = POINTER(fuse_context)
+
+
+def fuse_get_context():
+ """Returns a (uid, gid, pid) tuple"""
+ ctxp = _libfuse.fuse_get_context()
+ ctx = ctxp.contents
+ return ctx.uid, ctx.gid, ctx.pid
+
+
+class FuseOSError(OSError):
+ def __init__(self, errno):
+ super(FuseOSError, self).__init__(errno, strerror(errno))
+
+
+class FUSE(object):
+ """This class is the lower level interface and should not be subclassed
+ under normal use. Its methods are called by fuse.
+ Assumes API version 2.6 or later."""
+
+ def __init__(self, operations, mountpoint, raw_fi=False, **kwargs):
+ """Setting raw_fi to True will cause FUSE to pass the fuse_file_info
+ class as is to Operations, instead of just the fh field.
+ This gives you access to direct_io, keep_cache, etc."""
+
+ self.operations = operations
+ self.raw_fi = raw_fi
+ args = ['fuse']
+ if kwargs.pop('foreground', False):
+ args.append('-f')
+ if kwargs.pop('debug', False):
+ args.append('-d')
+ if kwargs.pop('nothreads', False):
+ args.append('-s')
+ kwargs.setdefault('fsname', operations.__class__.__name__)
+ args.append('-o')
+ args.append(','.join(key if val == True else '%s=%s' % (key, val)
+ for key, val in kwargs.items()))
+ args.append(mountpoint)
+ argv = (c_char_p * len(args))(*args)
+
+ fuse_ops = fuse_operations()
+ for name, prototype in fuse_operations._fields_:
+ if prototype != c_voidp and getattr(operations, name, None):
+ op = partial(self._wrapper_, getattr(self, name))
+ setattr(fuse_ops, name, prototype(op))
+ err = _libfuse.fuse_main_real(len(args), argv, pointer(fuse_ops),
+ sizeof(fuse_ops), None)
+ del self.operations # Invoke the destructor
+ if err:
+ raise RuntimeError(err)
+
+ def _wrapper_(self, func, *args, **kwargs):
+ """Decorator for the methods that follow"""
+ try:
+ return func(*args, **kwargs) or 0
+ except OSError, e:
+ return -(e.errno or EFAULT)
+ except:
+ print_exc()
+ return -EFAULT
+
+ def getattr(self, path, buf):
+ return self.fgetattr(path, buf, None)
+
+ def readlink(self, path, buf, bufsize):
+ ret = self.operations('readlink', path)
+ data = create_string_buffer(ret[:bufsize - 1])
+ memmove(buf, data, len(data))
+ return 0
+
+ def mknod(self, path, mode, dev):
+ return self.operations('mknod', path, mode, dev)
+
+ def mkdir(self, path, mode):
+ return self.operations('mkdir', path, mode)
+
+ def unlink(self, path):
+ return self.operations('unlink', path)
+
+ def rmdir(self, path):
+ return self.operations('rmdir', path)
+
+ def symlink(self, source, target):
+ return self.operations('symlink', target, source)
+
+ def rename(self, old, new):
+ return self.operations('rename', old, new)
+
+ def link(self, source, target):
+ return self.operations('link', target, source)
+
+ def chmod(self, path, mode):
+ return self.operations('chmod', path, mode)
+
+ def chown(self, path, uid, gid):
+ # Check if any of the arguments is a -1 that has overflowed
+ if c_uid_t(uid + 1).value == 0:
+ uid = -1
+ if c_gid_t(gid + 1).value == 0:
+ gid = -1
+ return self.operations('chown', path, uid, gid)
+
+ def truncate(self, path, length):
+ return self.operations('truncate', path, length)
+
+ def open(self, path, fip):
+ fi = fip.contents
+ if self.raw_fi:
+ return self.operations('open', path, fi)
+ else:
+ fi.fh = self.operations('open', path, fi.flags)
+ return 0
+
+ def read(self, path, buf, size, offset, fip):
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ ret = self.operations('read', path, size, offset, fh)
+ if not ret:
+ return 0
+ data = create_string_buffer(ret[:size], size)
+ memmove(buf, data, size)
+ return size
+
+ def write(self, path, buf, size, offset, fip):
+ data = string_at(buf, size)
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ return self.operations('write', path, data, offset, fh)
+
+ def statfs(self, path, buf):
+ stv = buf.contents
+ attrs = self.operations('statfs', path)
+ for key, val in attrs.items():
+ if hasattr(stv, key):
+ setattr(stv, key, val)
+ return 0
+
+ def flush(self, path, fip):
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ return self.operations('flush', path, fh)
+
+ def release(self, path, fip):
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ return self.operations('release', path, fh)
+
+ def fsync(self, path, datasync, fip):
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ return self.operations('fsync', path, datasync, fh)
+
+ def setxattr(self, path, name, value, size, options, *args):
+ data = string_at(value, size)
+ return self.operations('setxattr', path, name, data, options, *args)
+
+ def getxattr(self, path, name, value, size, *args):
+ ret = self.operations('getxattr', path, name, *args)
+ retsize = len(ret)
+ buf = create_string_buffer(ret, retsize) # Does not add trailing 0
+ if bool(value):
+ if retsize > size:
+ return -ERANGE
+ memmove(value, buf, retsize)
+ return retsize
+
+ def listxattr(self, path, namebuf, size):
+ ret = self.operations('listxattr', path)
+ buf = create_string_buffer('\x00'.join(ret)) if ret else ''
+ bufsize = len(buf)
+ if bool(namebuf):
+ if bufsize > size:
+ return -ERANGE
+ memmove(namebuf, buf, bufsize)
+ return bufsize
+
+ def removexattr(self, path, name):
+ return self.operations('removexattr', path, name)
+
+ def opendir(self, path, fip):
+ # Ignore raw_fi
+ fip.contents.fh = self.operations('opendir', path)
+ return 0
+
+ def readdir(self, path, buf, filler, offset, fip):
+ # Ignore raw_fi
+ for item in self.operations('readdir', path, fip.contents.fh):
+ if isinstance(item, (str, unicode)):
+ name, st, offset = item, None, 0
+ else:
+ name, attrs, offset = item
+ if attrs:
+ st = c_stat()
+ set_st_attrs(st, attrs)
+ else:
+ st = None
+ if filler(buf, name, st, offset) != 0:
+ break
+ return 0
+
+ def releasedir(self, path, fip):
+ # Ignore raw_fi
+ return self.operations('releasedir', path, fip.contents.fh)
+
+ def fsyncdir(self, path, datasync, fip):
+ # Ignore raw_fi
+ return self.operations('fsyncdir', path, datasync, fip.contents.fh)
+
+ def init(self, conn):
+ return self.operations('init', '/')
+
+ def destroy(self, private_data):
+ return self.operations('destroy', '/')
+
+ def access(self, path, amode):
+ return self.operations('access', path, amode)
+
+ def create(self, path, mode, fip):
+ fi = fip.contents
+ if self.raw_fi:
+ return self.operations('create', path, mode, fi)
+ else:
+ fi.fh = self.operations('create', path, mode)
+ return 0
+
+ def ftruncate(self, path, length, fip):
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ return self.operations('truncate', path, length, fh)
+
+ def fgetattr(self, path, buf, fip):
+ memset(buf, 0, sizeof(c_stat))
+ st = buf.contents
+ fh = fip and (fip.contents if self.raw_fi else fip.contents.fh)
+ attrs = self.operations('getattr', path, fh)
+ set_st_attrs(st, attrs)
+ return 0
+
+ def lock(self, path, fip, cmd, lock):
+ fh = fip.contents if self.raw_fi else fip.contents.fh
+ return self.operations('lock', path, fh, cmd, lock)
+
+ def utimens(self, path, buf):
+ if buf:
+ atime = time_of_timespec(buf.contents.actime)
+ mtime = time_of_timespec(buf.contents.modtime)
+ times = (atime, mtime)
+ else:
+ times = None
+ return self.operations('utimens', path, times)
+
+ def bmap(self, path, blocksize, idx):
+ return self.operations('bmap', path, blocksize, idx)
+
+
+class Operations(object):
+ """This class should be subclassed and passed as an argument to FUSE on
+ initialization. All operations should raise a FuseOSError exception
+ on error.
+
+ When in doubt of what an operation should do, check the FUSE header
+ file or the corresponding system call man page."""
+
+ def __call__(self, op, *args):
+ if not hasattr(self, op):
+ raise FuseOSError(EFAULT)
+ return getattr(self, op)(*args)
+
+ def access(self, path, amode):
+ return 0
+
+ bmap = None
+
+ def chmod(self, path, mode):
+ raise FuseOSError(EROFS)
+
+ def chown(self, path, uid, gid):
+ raise FuseOSError(EROFS)
+
+ def create(self, path, mode, fi=None):
+ """When raw_fi is False (default case), fi is None and create should
+ return a numerical file handle.
+ When raw_fi is True the file handle should be set directly by create
+ and return 0."""
+ raise FuseOSError(EROFS)
+
+ def destroy(self, path):
+ """Called on filesystem destruction. Path is always /"""
+ pass
+
+ def flush(self, path, fh):
+ return 0
+
+ def fsync(self, path, datasync, fh):
+ return 0
+
+ def fsyncdir(self, path, datasync, fh):
+ return 0
+
+ def getattr(self, path, fh=None):
+ """Returns a dictionary with keys identical to the stat C structure
+ of stat(2).
+ st_atime, st_mtime and st_ctime should be floats.
+ NOTE: There is an incombatibility between Linux and Mac OS X concerning
+ st_nlink of directories. Mac OS X counts all files inside the directory,
+ while Linux counts only the subdirectories."""
+
+ if path != '/':
+ raise FuseOSError(ENOENT)
+ return dict(st_mode=(S_IFDIR | 0755), st_nlink=2)
+
+ def getxattr(self, path, name, position=0):
+ raise FuseOSError(ENOTSUP)
+
+ def init(self, path):
+ """Called on filesystem initialization. Path is always /
+ Use it instead of __init__ if you start threads on initialization."""
+ pass
+
+ def link(self, target, source):
+ raise FuseOSError(EROFS)
+
+ def listxattr(self, path):
+ return []
+
+ lock = None
+
+ def mkdir(self, path, mode):
+ raise FuseOSError(EROFS)
+
+ def mknod(self, path, mode, dev):
+ raise FuseOSError(EROFS)
+
+ def open(self, path, flags):
+ """When raw_fi is False (default case), open should return a numerical
+ file handle.
+ When raw_fi is True the signature of open becomes:
+ open(self, path, fi)
+ and the file handle should be set directly."""
+ return 0
+
+ def opendir(self, path):
+ """Returns a numerical file handle."""
+ return 0
+
+ def read(self, path, size, offset, fh):
+ """Returns a string containing the data requested."""
+ raise FuseOSError(EIO)
+
+ def readdir(self, path, fh):
+ """Can return either a list of names, or a list of (name, attrs, offset)
+ tuples. attrs is a dict as in getattr."""
+ return ['.', '..']
+
+ def readlink(self, path):
+ raise FuseOSError(ENOENT)
+
+ def release(self, path, fh):
+ return 0
+
+ def releasedir(self, path, fh):
+ return 0
+
+ def removexattr(self, path, name):
+ raise FuseOSError(ENOTSUP)
+
+ def rename(self, old, new):
+ raise FuseOSError(EROFS)
+
+ def rmdir(self, path):
+ raise FuseOSError(EROFS)
+
+ def setxattr(self, path, name, value, options, position=0):
+ raise FuseOSError(ENOTSUP)
+
+ def statfs(self, path):
+ """Returns a dictionary with keys identical to the statvfs C structure
+ of statvfs(3).
+ On Mac OS X f_bsize and f_frsize must be a power of 2 (minimum 512)."""
+ return {}
+
+ def symlink(self, target, source):
+ raise FuseOSError(EROFS)
+
+ def truncate(self, path, length, fh=None):
+ raise FuseOSError(EROFS)
+
+ def unlink(self, path):
+ raise FuseOSError(EROFS)
+
+ def utimens(self, path, times=None):
+ """Times is a (atime, mtime) tuple. If None use current time."""
+ return 0
+
+ def write(self, path, data, offset, fh):
+ raise FuseOSError(EROFS)
+
+
+class LoggingMixIn:
+ def __call__(self, op, path, *args):
+ print '->', op, path, repr(args)
+ ret = '[Unhandled Exception]'
+ try:
+ ret = getattr(self, op)(path, *args)
+ return ret
+ except OSError, e:
+ ret = str(e)
+ raise
+ finally:
+ print '<-', op, repr(ret)
projects / pithos / blobdiff