ThreadedOperation.py 2.05 KB
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# coding: utf-8
# /*##########################################################################
#
# Copyright (c) 2016-2017 European Synchrotron Radiation Facility
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
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# ###########################################################################*/


__authors__ = ["H. Payno"]
__license__ = "MIT"
__date__ = "15/10/2018"


from silx.gui import qt
from . import OverwritingOperation


class ThreadedOperation(qt.QThread):
    """Thread able to run an operation on a dedicated thread"""
    def __init__(self, operation=None, dry_run=False, cache_data=None):
        qt.QThread.__init__(self)
        self.init(operation, dry_run, cache_data)

    def init(self, operation, dry_run=False, cache_data=None):
        self._operation = operation
        self._dry_run = dry_run
        self._cache_data = cache_data

    def run(self):
        if self._dry_run is True:
            assert isinstance(self._operation, OverwritingOperation)
            self._operation.dry_run(self._cache_data)
        else:
            self._operation.compute()