35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
import mmap
|
|
|
|
from joblib import Parallel, delayed
|
|
from joblib.backports import concurrency_safe_rename, make_memmap
|
|
from joblib.test.common import with_numpy
|
|
from joblib.testing import parametrize
|
|
|
|
|
|
@with_numpy
|
|
def test_memmap(tmpdir):
|
|
fname = tmpdir.join("test.mmap").strpath
|
|
size = 5 * mmap.ALLOCATIONGRANULARITY
|
|
offset = mmap.ALLOCATIONGRANULARITY + 1
|
|
memmap_obj = make_memmap(fname, shape=size, mode="w+", offset=offset)
|
|
assert memmap_obj.offset == offset
|
|
|
|
|
|
@parametrize("dst_content", [None, "dst content"])
|
|
@parametrize("backend", [None, "threading"])
|
|
def test_concurrency_safe_rename(tmpdir, dst_content, backend):
|
|
src_paths = [tmpdir.join("src_%d" % i) for i in range(4)]
|
|
for src_path in src_paths:
|
|
src_path.write("src content")
|
|
dst_path = tmpdir.join("dst")
|
|
if dst_content is not None:
|
|
dst_path.write(dst_content)
|
|
|
|
Parallel(n_jobs=4, backend=backend)(
|
|
delayed(concurrency_safe_rename)(src_path.strpath, dst_path.strpath)
|
|
for src_path in src_paths
|
|
)
|
|
assert dst_path.exists()
|
|
assert dst_path.read() == "src content"
|
|
for src_path in src_paths:
|
|
assert not src_path.exists()
|