react-native/React/Base/RCTPerformanceLogger.h
Tadeu Zagallo 080d3b9f62 [ReactNative] Add PerformanceLogger to measure TTI
Summary:
@public

Add PerformanceLogger to keep track of JS download, initial script execution and
full TTI.

Test Plan:
The Native side currently calls `addTimespans` when it's finish initializing
with the six values (start and end for the three events), so I just checked it
with a `PerformanceLogger.logTimespans()` at the end of the function.

```
2015-06-18 16:47:19.096 [info][tid:com.facebook.React.JavaScript] "ScriptDownload: 48ms"
2015-06-18 16:47:19.096 [info][tid:com.facebook.React.JavaScript] "ScriptExecution: 106ms"
2015-06-18 16:47:19.096 [info][tid:com.facebook.React.JavaScript] "TTI: 293ms"
```
2015-06-19 15:01:35 -08:00

25 lines
652 B
Objective-C

/**
* Copyright (c) 2015-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.
*/
#import <Foundation/Foundation.h>
#import "RCTDefines.h"
#import "RCTBridgeModule.h"
typedef NS_ENUM(NSUInteger, RCTPLTag) {
RCTPLScriptDownload = 0,
RCTPLAppScriptExecution,
RCTPLTTI,
RCTPLSize
};
void RCTPerformanceLoggerStart(RCTPLTag tag);
void RCTPerformanceLoggerEnd(RCTPLTag tag);
NSArray *RCTPerformanceLoggerOutput(void);