mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-12 09:26:31 +00:00
9615c23d15
Namely, sync, start_sync, and wait_sync. Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
# Copyright (C) 2018 Facebook
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#
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# This file is part of libbtrfsutil.
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#
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# libbtrfsutil is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# libbtrfsutil is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
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import os
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import time
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import btrfsutil
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from tests import BtrfsTestCase, HAVE_PATH_LIKE
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def touch(path):
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now = time.time()
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os.utime(path, (now, now))
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class TestSubvolume(BtrfsTestCase):
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def super_generation(self):
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with open(self.image, 'rb') as f:
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# csum is 32 bytes, fsid is 16 bytes, bytenr is 8 bytes, flags is 8
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# bytes
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f.seek(65536 + 32 + 16 + 8 + 8)
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self.assertEqual(f.read(8), b'_BHRfS_M')
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return int.from_bytes(f.read(8), 'little')
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def test_sync(self):
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old_generation = self.super_generation()
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for arg in self.path_or_fd(self.mountpoint):
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with self.subTest(type=type(arg)):
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touch(arg)
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btrfsutil.sync(arg)
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new_generation = self.super_generation()
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self.assertGreater(new_generation, old_generation)
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old_generation = new_generation
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def test_start_sync(self):
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old_generation = self.super_generation()
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for arg in self.path_or_fd(self.mountpoint):
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with self.subTest(type=type(arg)):
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touch(arg)
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transid = btrfsutil.start_sync(arg)
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self.assertGreater(transid, old_generation)
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def test_wait_sync(self):
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old_generation = self.super_generation()
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for arg in self.path_or_fd(self.mountpoint):
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with self.subTest(type=type(arg)):
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touch(arg)
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transid = btrfsutil.start_sync(arg)
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btrfsutil.wait_sync(arg, transid)
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new_generation = self.super_generation()
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self.assertGreater(new_generation, old_generation)
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old_generation = new_generation
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touch(arg)
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btrfsutil.start_sync(arg)
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btrfsutil.wait_sync(arg)
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new_generation = self.super_generation()
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self.assertGreater(new_generation, old_generation)
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old_generation = new_generation
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