Harry Shamansky 71fc2dd18d Revise performance measurement naming and structure (#2265)
* Revise performance measurement naming and structure

- Revises naming from LayoutSpecGeneration to LayoutSpecComputation
- Adds a struct instead of an NSDictionary to retrieve performance metrics
- Includes ASEnvironmentStatePropagateDown in LayoutSpecComputation measurements

* Revise SumScopeTimer to include enable flag

* Make struct a typedef
2016-09-20 15:39:09 -04:00

58 lines
1.3 KiB
C++

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