2 import arvados_fuse as fuse
18 logger = logging.getLogger('arvados.arv-mount')
20 class MountTestBase(unittest.TestCase):
21 def setUp(self, api=None, local_store=True):
22 # The underlying C implementation of open() makes a fstat() syscall
23 # with the GIL still held. When the GETATTR message comes back to
24 # llfuse (which in these tests is in the same interpreter process) it
25 # can't acquire the GIL, so it can't service the fstat() call, so it
26 # deadlocks. The workaround is to run some of our test code in a
27 # separate process. Forturnately the multiprocessing module makes this
29 self.pool = multiprocessing.Pool(1)
32 self.keeptmp = tempfile.mkdtemp()
33 os.environ['KEEP_LOCAL_STORE'] = self.keeptmp
36 self.mounttmp = tempfile.mkdtemp()
38 run_test_server.authorize_with("admin")
39 self.api = api if api else arvados.safeapi.ThreadSafeApiCache(arvados.config.settings())
40 self.llfuse_thread = None
42 # This is a copy of Mount's method. TODO: Refactor MountTestBase
43 # to use a Mount instead of copying its code.
44 def _llfuse_main(self):
48 llfuse.close(unmount=False)
52 def make_mount(self, root_class, **root_kwargs):
53 self.operations = fuse.Operations(
54 os.getuid(), os.getgid(),
57 self.operations.inodes.add_entry(root_class(
58 llfuse.ROOT_INODE, self.operations.inodes, self.api, 0, **root_kwargs))
59 llfuse.init(self.operations, self.mounttmp, [])
60 self.llfuse_thread = threading.Thread(None, lambda: self._llfuse_main())
61 self.llfuse_thread.daemon = True
62 self.llfuse_thread.start()
63 # wait until the driver is finished initializing
64 self.operations.initlock.wait()
65 return self.operations.inodes[llfuse.ROOT_INODE]
68 if self.llfuse_thread:
69 subprocess.call(["fusermount", "-u", "-z", self.mounttmp])
70 self.llfuse_thread.join(timeout=1)
71 if self.llfuse_thread.is_alive():
72 logger.warning("MountTestBase.tearDown():"
73 " llfuse thread still alive 1s after umount"
74 " -- waiting another 10s")
75 self.llfuse_thread.join(timeout=10)
76 if self.llfuse_thread.is_alive():
77 logger.warning("MountTestBase.tearDown():"
78 " llfuse thread still alive 10s after umount"
79 " -- exiting with SIGKILL")
80 os.kill(os.getpid(), signal.SIGKILL)
82 os.rmdir(self.mounttmp)
84 shutil.rmtree(self.keeptmp)
85 os.environ.pop('KEEP_LOCAL_STORE')
86 run_test_server.reset()
90 def assertDirContents(self, subdir, expect_content):
93 path = os.path.join(path, subdir)
94 self.assertEqual(sorted(expect_content), sorted(llfuse.listdir(path)))