60 lines
1.7 KiB
Plaintext
60 lines
1.7 KiB
Plaintext
/**
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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 "RCTSamplingProfilerPackagerMethod.h"
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#import <JavaScriptCore/JavaScriptCore.h>
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#import <jschelpers/JavaScriptCore.h>
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#import "RCTJSEnvironment.h"
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#import "RCTLog.h"
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#if RCT_DEV // Only supported in dev mode
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@implementation RCTSamplingProfilerPackagerMethod {
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__weak id<RCTJSEnvironment> _jsEnvironment;
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}
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- (instancetype)initWithJSEnvironment:(id<RCTJSEnvironment>)jsEnvironment
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{
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if (self = [super init]) {
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_jsEnvironment = jsEnvironment;
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}
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return self;
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}
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- (void)handleRequest:(__unused id)params withResponder:(RCTPackagerClientResponder *)responder
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{
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JSGlobalContextRef globalContext = _jsEnvironment.jsContextRef;
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if (!JSC_JSSamplingProfilerEnabled(globalContext)) {
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[responder respondWithError:@"The JSSamplingProfiler is disabled. See 'iOS specific setup' section here https://fburl.com/u4lw7xeq for some help"];
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return;
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}
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// JSPokeSamplingProfiler() toggles the profiling process
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JSValueRef jsResult = JSC_JSPokeSamplingProfiler(globalContext);
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if (JSC_JSValueGetType(globalContext, jsResult) == kJSTypeNull) {
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[responder respondWithResult:@"started"];
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} else {
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JSContext *context = _jsEnvironment.jsContext;
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NSString *results = [[JSC_JSValue(globalContext) valueWithJSValueRef:jsResult inContext:context] toObject];
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[responder respondWithResult:results];
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}
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}
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- (void)handleNotification:(__unused id)params
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{
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RCTLogError(@"%@ does not implement onNotification", [self class]);
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}
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@end
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#endif
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