pyocf: refactor sync io operations

Replace the pattern:
	completion = OcfCompletion([("err", c_int)])
	io.callback = completion.callback
	io.submit()
	completion.wait()
with:
	completion = Sync(io).submit()
Also, remove some redundant imports.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@huawei.com>

tests/functional/tests/security/test_negative_io.py

@@ -1,18 +1,17 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
-from ctypes import c_int
 from random import randrange
 
 import pytest
 
 from pyocf.types.cache import Cache, Core
 from pyocf.types.data import Data
-from pyocf.types.io import IoDir
+from pyocf.types.io import IoDir, Sync
 from pyocf.types.queue import Queue
-from pyocf.types.shared import OcfCompletion
 from pyocf.types.volume import Volume, RamVolume
 from pyocf.types.volume_core import CoreVolume
 from pyocf.utils import Size
@@ -204,9 +203,6 @@ def io_operation(
     io = vol.new_io(queue, offset, data.size, io_direction, io_class, 0)
     io.set_data(data)
 
-    completion = OcfCompletion([("err", c_int)])
-    io.callback = completion.callback
-    io.submit()
-    completion.wait()
+    completion = Sync(io).submit()
     vol.close()
     return completion

tests/functional/tests/security/test_secure_erase.py

@@ -1,5 +1,6 @@
 #
 # Copyright(c) 2019-2022 Intel Corporation
+# Copyright(c) 2024 Huawei Technologies
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
@@ -16,7 +17,7 @@ from pyocf.types.ctx import OcfCtx
 from pyocf.types.logger import DefaultLogger, LogLevel
 from pyocf.ocf import OcfLib
 from pyocf.types.cleaner import Cleaner
-from pyocf.types.io import IoDir
+from pyocf.types.io import IoDir, Sync
 from pyocf.types.shared import OcfCompletion
 
 
@@ -90,10 +91,7 @@ def test_secure_erase_simple_io_read_misses(cache_mode):
     io = vol.new_io(queue, S.from_sector(1).B, write_data.size, IoDir.WRITE, 0, 0,)
     io.set_data(write_data)
 
-    cmpl = OcfCompletion([("err", c_int)])
-    io.callback = cmpl.callback
-    io.submit()
-    cmpl.wait()
+    Sync(io).submit()
 
     cmpls = []
     for i in range(100):
@@ -113,10 +111,7 @@ def test_secure_erase_simple_io_read_misses(cache_mode):
     io = vol.new_io(queue, S.from_sector(1), write_data.size, IoDir.WRITE, 0, 0)
     io.set_data(write_data)
 
-    cmpl = OcfCompletion([("err", c_int)])
-    io.callback = cmpl.callback
-    io.submit()
-    cmpl.wait()
+    Sync(io).submit()
 
     vol.close()
     stats = cache.get_stats()
@@ -167,19 +162,13 @@ def test_secure_erase_simple_io_cleaning():
     io = vol.new_io(queue, S.from_sector(1).B, read_data.size, IoDir.WRITE, 0, 0)
     io.set_data(read_data)
 
-    cmpl = OcfCompletion([("err", c_int)])
-    io.callback = cmpl.callback
-    io.submit()
-    cmpl.wait()
+    Sync(io).submit()
 
     read_data = Data(S.from_sector(8).B)
     io = vol.new_io(queue, S.from_sector(1).B, read_data.size, IoDir.READ, 0, 0)
     io.set_data(read_data)
 
-    cmpl = OcfCompletion([("err", c_int)])
-    io.callback = cmpl.callback
-    io.submit()
-    cmpl.wait()
+    Sync(io).submit()
 
     vol.close()
     stats = cache.get_stats()