def _run(self):
self.log.info("Merging subchain %s", self.subchain)
with guarded.context(self.subchain.locks):
self.subchain.validate()
with self.subchain.prepare(), self.subchain.volume_operation():
self.operation = qemuimg.commit(
self.subchain.top_vol.getVolumePath(),
topFormat=sc.fmt2str(self.subchain.top_vol.getFormat()),
base=self.subchain.base_vol.getVolumePath())
with utils.closing(self.operation):
self.operation.wait_for_completion()
def _run(self):
self.log.info("Merging subchain %s", self.subchain)
with guarded.context(self.subchain.locks):
self.subchain.validate()
with self.subchain.prepare(), self.subchain.volume_operation():
self.operation = qemuimg.commit(
self.subchain.top_vol.getVolumePath(),
topFormat=sc.fmt2str(self.subchain.top_vol.getFormat()),
base=self.subchain.base_vol.getVolumePath())
with utils.closing(self.operation):
self.operation.wait_for_completion()
def test_commit_progress(self):
with namedTemporaryDir() as tmpdir:
size = 1048576
base = os.path.join(tmpdir, "base.img")
make_image(base, size, qemuimg.FORMAT.RAW, 0, "1.1")
top = os.path.join(tmpdir, "top.img")
make_image(top, size, qemuimg.FORMAT.QCOW2, 1, "1.1", base)
op = qemuimg.commit(top, topFormat=qemuimg.FORMAT.QCOW2)
op.wait_for_completion()
self.assertEquals(100, op.progress)
def test_commit_progress(self):
with namedTemporaryDir() as tmpdir:
size = 1048576
base = os.path.join(tmpdir, "base.img")
make_image(base, size, qemuimg.FORMAT.RAW, 0, "1.1")
top = os.path.join(tmpdir, "top.img")
make_image(top, size, qemuimg.FORMAT.QCOW2, 1, "1.1", base)
op = qemuimg.commit(top, topFormat=qemuimg.FORMAT.QCOW2)
with utils.closing(op):
op.wait_for_completion()
self.assertEqual(100, op.progress)
def _run(self):
self.log.info("Merging subchain %s", self.subchain)
with guarded.context(self.subchain.locks):
self.subchain.validate()
# Base volume must be ILLEGAL. Otherwise, VM could be run while
# performing cold merge.
base_legality = self.subchain.base_vol.getLegality()
if base_legality == sc.LEGAL_VOL:
raise se.UnexpectedVolumeState(self.subchain.base_id,
sc.ILLEGAL_VOL,
base_legality)
with self.subchain.prepare(), self.subchain.volume_operation():
self.operation = qemuimg.commit(
self.subchain.top_vol.getVolumePath(),
topFormat=sc.fmt2str(self.subchain.top_vol.getFormat()),
base=self.subchain.base_vol.getVolumePath())
with utils.closing(self.operation):
self.operation.wait_for_completion()
def test_commit(self, qcow2_compat, base, top, use_base):
size = 1048576
with namedTemporaryDir() as tmpdir:
chain = []
parent = None
# Create a chain of 4 volumes.
for i in range(4):
vol = os.path.join(tmpdir, "vol%d.img" % i)
format = (qemuimg.FORMAT.RAW
if i == 0 else qemuimg.FORMAT.QCOW2)
make_image(vol, size, format, i, qcow2_compat, parent)
orig_offset = qemuimg.check(vol)["offset"] if i > 0 else None
chain.append((vol, orig_offset))
parent = vol
base_vol = chain[base][0]
top_vol = chain[top][0]
op = qemuimg.commit(top_vol,
topFormat=qemuimg.FORMAT.QCOW2,
base=base_vol if use_base else None)
with utils.closing(op):
op.wait_for_completion()
base_fmt = (qemuimg.FORMAT.RAW
if base == 0 else qemuimg.FORMAT.QCOW2)
for i in range(base, top + 1):
offset = i * 1024
pattern = 0xf0 + i
# The base volume must have the data from all the volumes
# merged into it.
qemu_pattern_verify(base_vol,
base_fmt,
offset=offset,
len=1024,
pattern=pattern)
if i > base:
# internal and top volumes should keep the data, we
# may want to wipe this data when deleting the volumes
# later.
vol, orig_offset = chain[i]
actual_offset = qemuimg.check(vol)["offset"]
self.assertEqual(actual_offset, orig_offset)
def test_commit(self, qcow2_compat, base, top, use_base):
size = 1048576
with namedTemporaryDir() as tmpdir:
chain = []
parent = None
# Create a chain of 4 volumes.
for i in range(4):
vol = os.path.join(tmpdir, "vol%d.img" % i)
format = (qemuimg.FORMAT.RAW if i == 0 else
qemuimg.FORMAT.QCOW2)
make_image(vol, size, format, i, qcow2_compat, parent)
blocks = os.stat(vol).st_blocks
chain.append((vol, blocks))
parent = vol
base_vol = chain[base][0]
top_vol = chain[top][0]
op = qemuimg.commit(top_vol,
topFormat=qemuimg.FORMAT.QCOW2,
base=base_vol if use_base else None)
with utils.closing(op):
op.wait_for_completion()
for i in range(base, top + 1):
offset = i * 1024
pattern = 0xf0 + i
# The base volume must have the data from all the volumes
# merged into it.
format = (qemuimg.FORMAT.RAW if i == 0 else
qemuimg.FORMAT.QCOW2)
qemu_pattern_verify(base_vol, format, offset=offset,
len=1024, pattern=pattern)
if i > base:
# internal and top volumes should keep the data, we
# may want to wipe this data when deleting the volumes
# later.
vol, blocks = chain[i]
self.assertEqual(os.stat(vol).st_blocks, blocks)