+# Copyright (c) 2019 ARM Limited
+# All rights reserved
+#
+# The license below extends only to copyright in the software and shall
+# not be construed as granting a license to any other intellectual
+# property including but not limited to intellectual property relating
+# to a hardware implementation of the functionality of the software
+# licensed hereunder. You may use the software subject to the license
+# terms below provided that you ensure that this notice is replicated
+# unmodified and in its entirety in all distributions of the software,
+# modified or unmodified, in source code or in binary form.
+#
# Copyright (c) 2017 Mark D. Hill and David A. Wood
# All rights reserved.
#
import os
import tempfile
import shutil
+import threading
from testlib.fixture import Fixture, globalfixture
from testlib.config import config, constants
# Set path to none so it's not deleted
self.path = None
+class UniqueFixture(Fixture):
+ '''
+ Base class for fixtures that generate a target in the
+ filesystem. If the same fixture is used by more than one
+ test/suite, rather than creating a copy of the fixture, it returns
+ the same object and makes sure that setup is only executed
+ once. Devired classses should override the _init and _setup
+ functions.
+
+ :param target: The absolute path of the target in the filesystem.
+
+ '''
+ fixtures = {}
+
+ def __new__(cls, target):
+ if target in cls.fixtures:
+ obj = cls.fixtures[target]
+ else:
+ obj = super(UniqueFixture, cls).__new__(cls)
+ obj.lock = threading.Lock()
+ obj.target = target
+ cls.fixtures[target] = obj
+ return obj
+
+ def __init__(self, *args, **kwargs):
+ with self.lock:
+ if hasattr(self, '_init_done'):
+ return
+ super(UniqueFixture, self).__init__(self, **kwargs)
+ self._init(*args, **kwargs)
+ self._init_done = True
+
+ def setup(self, testitem):
+ with self.lock:
+ if hasattr(self, '_setup_done'):
+ return
+ self._setup_done = True
+ self._setup(testitem)
+
class SConsFixture(Fixture):
'''