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39 lines
850 B
C++
39 lines
850 B
C++
/* Copyright (c) 2014-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#pragma once
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/**
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Must compile as c++ for this to work.
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Usage:
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// Can be an ivar or local variable
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NSTimeInterval placeToStoreTiming;
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{
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// some scope
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ASDisplayNode::ScopeTimer t(placeToStoreTiming);
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DoPotentiallySlowWork();
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MorePotentiallySlowWork();
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}
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*/
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namespace ASDN {
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struct ScopeTimer {
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NSTimeInterval begin;
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NSTimeInterval &outT;
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ScopeTimer(NSTimeInterval &outRef) : outT(outRef) {
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begin = CACurrentMediaTime();
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}
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~ScopeTimer() {
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outT = CACurrentMediaTime() - begin;
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}
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};
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}
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