From 259015154187d7c67b2fed6eddac32f694395f88 Mon Sep 17 00:00:00 2001
From: woutdenolf <woutdenolf@users.sf.net>
Date: Fri, 15 Sep 2023 13:43:48 +0200
Subject: [PATCH] io.utils.open: do not lock the file

---
 src/silx/gui/hdf5/test/test_hdf5.py | 19 ++++++++++---------
 src/silx/io/utils.py                |  6 ++----
 2 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/silx/gui/hdf5/test/test_hdf5.py b/src/silx/gui/hdf5/test/test_hdf5.py
index 40ffd75e60..d08e3bcbb3 100755
--- a/src/silx/gui/hdf5/test/test_hdf5.py
+++ b/src/silx/gui/hdf5/test/test_hdf5.py
@@ -39,6 +39,7 @@
 from silx.gui import hdf5
 from silx.gui.utils.testutils import SignalListener
 from silx.io import commonh5
+from silx.io import h5py_utils
 import weakref
 
 import h5py
@@ -53,7 +54,7 @@ def useH5File(request, tmpdir_factory):
     tmp = tmpdir_factory.mktemp("test_hdf5")
     request.cls.filename = os.path.join(tmp, "data.h5")
     # create h5 data
-    with h5py.File(request.cls.filename, "w") as f:
+    with h5py_utils.File(request.cls.filename, "w") as f:
         g = f.create_group("arrays")
         g.create_dataset("scalar", data=10)
     yield
@@ -86,7 +87,7 @@ def h5TempFile(self):
         fd, tmp_name = tempfile.mkstemp(suffix=".h5")
         os.close(fd)
         # create h5 data
-        h5file = h5py.File(tmp_name, "w")
+        h5file = h5py_utils.File(tmp_name, "w")
         g = h5file.create_group("arrays")
         g.create_dataset("scalar", data=10)
         h5file.close()
@@ -159,7 +160,7 @@ def testRemoveObject(self):
         self.assertEqual(model.rowCount(qt.QModelIndex()), 0)
 
     def testSynchronizeObject(self):
-        h5 = h5py.File(self.filename, mode="r")
+        h5 = h5py_utils.File(self.filename, mode="r")
         model = hdf5.Hdf5TreeModel()
         model.insertH5pyObject(h5)
         self.assertEqual(model.rowCount(qt.QModelIndex()), 1)
@@ -234,7 +235,7 @@ def testNotCloseFile(self):
         """A file inserted as an h5py object is not open (then not closed)
         internally."""
         try:
-            h5File = h5py.File(self.filename, mode="r")
+            h5File = h5py_utils.File(self.filename, mode="r")
             model = hdf5.Hdf5TreeModel()
             self.assertEqual(model.rowCount(qt.QModelIndex()), 0)
             model.insertH5pyObject(h5File)
@@ -368,7 +369,7 @@ class TestHdf5TreeModelSignals(TestCaseQt):
     def setUp(self):
         TestCaseQt.setUp(self)
         self.model = hdf5.Hdf5TreeModel()
-        self.h5 = h5py.File(self.filename, mode='r')
+        self.h5 = h5py_utils.File(self.filename, mode='r')
         self.model.insertH5pyObject(self.h5)
 
         self.listener = SignalListener()
@@ -394,7 +395,7 @@ def waitForPendingOperations(self, model):
             raise RuntimeError("Still waiting for a pending operation")
 
     def testInsert(self):
-        h5 = h5py.File(self.filename, mode='r')
+        h5 = h5py_utils.File(self.filename, mode='r')
         self.model.insertH5pyObject(h5)
         self.assertEqual(self.listener.callCount(), 0)
 
@@ -572,7 +573,7 @@ def useH5Model(request, tmpdir_factory):
     extH5FileName = os.path.join(tmp, "base__external.h5")
     extDatFileName = os.path.join(tmp, "base__external.dat")
 
-    externalh5 = h5py.File(extH5FileName, mode="w")
+    externalh5 = h5py_utils.File(extH5FileName, mode="w")
     externalh5["target/dataset"] = 50
     externalh5["target/link"] = h5py.SoftLink("/target/dataset")
     externalh5["/ext/vds0"] = [0, 1]
@@ -581,7 +582,7 @@ def useH5Model(request, tmpdir_factory):
 
     numpy.array([0,1,10,10,2,3]).tofile(extDatFileName)
 
-    h5 = h5py.File(filename, mode="w")
+    h5 = h5py_utils.File(filename, mode="w")
     h5["group/dataset"] = 50
     h5["link/soft_link"] = h5py.SoftLink("/group/dataset")
     h5["link/soft_link_to_group"] = h5py.SoftLink("/group")
@@ -604,7 +605,7 @@ def useH5Model(request, tmpdir_factory):
         h5["/ext"].create_dataset("raw", shape=(2,2), dtype=int, external=external)
         h5.close()
 
-    with h5py.File(filename, mode="r") as h5File:
+    with h5py_utils.File(filename, mode="r") as h5File:
         # Create model
         request.cls.model = hdf5.Hdf5TreeModel()
         request.cls.model.insertH5pyObject(h5File)
diff --git a/src/silx/io/utils.py b/src/silx/io/utils.py
index cf6ff1b201..dcb1254432 100644
--- a/src/silx/io/utils.py
+++ b/src/silx/io/utils.py
@@ -39,6 +39,7 @@
 
 from silx.utils.proxy import Proxy
 from .url import DataUrl
+from . import h5py_utils
 from .._version import calc_hexversion
 
 import h5py
@@ -482,10 +483,7 @@ def _open_local_file(filename):
                                       "File '%s' can't be read as a numpy file." % filename))
 
         if h5py.is_hdf5(filename):
-            try:
-                return h5py.File(filename, "r")
-            except OSError:
-                return h5py.File(filename, "r", libver='latest', swmr=True)
+            return h5py_utils.File(filename, "r")
 
         try:
             from . import fabioh5