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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
class Atomic
alias _compare_and_set compare_and_set
def compare_and_set(expected, new)
if expected.kind_of? Numeric
while true
old = get
return false unless old.kind_of? Numeric
return false unless old == expected
result = _compare_and_set(old, new)
return result if result
end
else
_compare_and_set(expected, new)
end
end
alias compare_and_swap compare_and_set
end
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