storage/reflink: coroutinize pool setup()
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1d89acf698
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@ -42,6 +42,18 @@ LOOP_SET_CAPACITY = 0x4C07 # defined in <linux/loop.h>
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LOGGER = logging.getLogger('qubes.storage.reflink')
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def _coroutinized(function):
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''' Decorator transforming a synchronous function into a coroutine
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that runs the function in the event loop's thread-based
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default executor.
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'''
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@asyncio.coroutine
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@functools.wraps(function)
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def wrapper(*args, **kwargs):
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return (yield from asyncio.get_event_loop().run_in_executor(
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None, functools.partial(function, *args, **kwargs)))
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return wrapper
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class ReflinkPool(qubes.storage.Pool):
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driver = 'file-reflink'
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_known_dir_path_prefixes = ['appvms', 'vm-templates']
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@ -53,6 +65,7 @@ class ReflinkPool(qubes.storage.Pool):
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self.dir_path = os.path.abspath(dir_path)
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self.setup_check = qubes.property.bool(None, None, setup_check)
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@_coroutinized
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def setup(self):
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created = _make_dir(self.dir_path)
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if self.setup_check and not is_supported(self.dir_path):
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@ -118,18 +131,6 @@ class ReflinkPool(qubes.storage.Pool):
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self.dir_path)
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def _coroutinized(function):
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''' Decorator transforming a synchronous function into a coroutine
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that runs the function in the event loop's thread-based
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default executor.
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'''
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@asyncio.coroutine
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@functools.wraps(function)
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def wrapper(*args, **kwargs):
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return (yield from asyncio.get_event_loop().run_in_executor(
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None, functools.partial(function, *args, **kwargs)))
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return wrapper
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def _locked(method):
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''' Decorator transforming a synchronous volume method to run
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under the volume lock.
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