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* Copyright 2010 Google Inc.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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// Author: jmaessen@google.com (Jan Maessen)
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#ifndef PAGESPEED_KERNEL_UTIL_WORK_BOUND_H_
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#define PAGESPEED_KERNEL_UTIL_WORK_BOUND_H_
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namespace net_instaweb {
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// A WorkBound represents permission to do work bounded by some upper bound.
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// Roughly speaking we can represent this as a bounded shared counter, but
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// how we realize the counter implementation must vary from system to system.
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virtual bool TryToWork() = 0;
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virtual void WorkComplete() = 0;
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} // namespace net_instaweb
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#endif // PAGESPEED_KERNEL_UTIL_WORK_BOUND_H_