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080d3b9f62
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" ```
78 lines
1.6 KiB
Objective-C
78 lines
1.6 KiB
Objective-C
/**
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* Copyright (c) 2015-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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#import <QuartzCore/QuartzCore.h>
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#import "RCTPerformanceLogger.h"
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#import "RCTRootView.h"
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static int64_t RCTPLData[RCTPLSize][2] = {};
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void RCTPerformanceLoggerStart(RCTPLTag tag)
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{
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RCTPLData[tag][0] = CACurrentMediaTime() * 1000;
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}
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void RCTPerformanceLoggerEnd(RCTPLTag tag)
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{
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RCTPLData[tag][1] = CACurrentMediaTime() * 1000;
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}
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NSArray *RCTPerformanceLoggerOutput(void)
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{
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return @[
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@(RCTPLData[0][0]),
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@(RCTPLData[0][1]),
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@(RCTPLData[1][0]),
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@(RCTPLData[1][1]),
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@(RCTPLData[2][0]),
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@(RCTPLData[2][1]),
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];
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}
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@interface RCTPerformanceLogger : NSObject <RCTBridgeModule>
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@end
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@implementation RCTPerformanceLogger
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RCT_EXPORT_MODULE()
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@synthesize bridge = _bridge;
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- (instancetype)init
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{
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if ((self = [super init])) {
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(sendTimespans)
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name:RCTContentDidAppearNotification
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object:nil];
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}
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return self;
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}
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- (void)dealloc
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{
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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- (void)sendTimespans
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{
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[_bridge enqueueJSCall:@"PerformanceLogger.addTimespans" args:@[
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RCTPerformanceLoggerOutput(),
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@[
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@"ScriptDownload",
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@"ScriptExecution",
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@"TTI",
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],
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]];
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}
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@end
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