74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#ifdef WITH_JSC_EXTRA_TRACING
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#include "JSCLegacyTracing.h"
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#include <JavaScriptCore/JavaScript.h>
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#include <JavaScriptCore/API/JSProfilerPrivate.h>
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#include <fbsystrace.h>
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#include "JSCHelpers.h"
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#include "JSCTracing.h"
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static const char *ENABLED_FBSYSTRACE_PROFILE_NAME = "__fbsystrace__";
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static JSValueRef nativeTraceBeginLegacy(
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JSContextRef ctx,
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JSObjectRef function,
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JSObjectRef thisObject,
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size_t argumentCount,
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const JSValueRef arguments[],
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JSValueRef* exception) {
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if (FBSYSTRACE_LIKELY(argumentCount >= 1)) {
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uint64_t tag = facebook::react::tracingTagFromJSValue(ctx, arguments[0], exception);
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if (!fbsystrace_is_tracing(tag)) {
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return JSValueMakeUndefined(ctx);
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}
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}
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JSStringRef title = JSStringCreateWithUTF8CString(ENABLED_FBSYSTRACE_PROFILE_NAME);
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#if WITH_REACT_INTERNAL_SETTINGS
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JSStartProfiling(ctx, title, true);
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#else
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JSStartProfiling(ctx, title);
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#endif
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JSStringRelease(title);
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return JSValueMakeUndefined(ctx);
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}
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static JSValueRef nativeTraceEndLegacy(
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JSContextRef ctx,
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JSObjectRef function,
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JSObjectRef thisObject,
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size_t argumentCount,
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const JSValueRef arguments[],
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JSValueRef* exception) {
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if (FBSYSTRACE_LIKELY(argumentCount >= 1)) {
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uint64_t tag = facebook::react::tracingTagFromJSValue(ctx, arguments[0], exception);
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if (!fbsystrace_is_tracing(tag)) {
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return JSValueMakeUndefined(ctx);
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}
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}
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JSStringRef title = JSStringCreateWithUTF8CString(ENABLED_FBSYSTRACE_PROFILE_NAME);
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JSEndProfiling(ctx, title);
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JSStringRelease(title);
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return JSValueMakeUndefined(ctx);
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}
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namespace facebook {
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namespace react {
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void addNativeTracingLegacyHooks(JSGlobalContextRef ctx) {
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installGlobalFunction(ctx, "nativeTraceBeginLegacy", nativeTraceBeginLegacy);
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installGlobalFunction(ctx, "nativeTraceEndLegacy", nativeTraceEndLegacy);
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}
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} }
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#endif
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