66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
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#include "JSCPerfStats.h"
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#ifdef JSC_HAS_PERF_STATS_API
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#include <JavaScriptCore/JSPerfStats.h>
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#include <JavaScriptCore/JSValueRef.h>
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#include "JSCHelpers.h"
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#include "Value.h"
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static JSValueRef nativeGetHeapStats(
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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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JSHeapStats heapStats = {0};
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JSGetHeapStats(ctx, &heapStats);
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auto result = facebook::react::Object::create(ctx);
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result.setProperty("size", {ctx, JSValueMakeNumber(ctx, heapStats.size)});
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result.setProperty("extra_size", {ctx, JSValueMakeNumber(ctx, heapStats.extraSize)});
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result.setProperty("capacity", {ctx, JSValueMakeNumber(ctx, heapStats.capacity)});
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result.setProperty("object_count", {ctx, JSValueMakeNumber(ctx, heapStats.objectCount)});
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return (JSObjectRef) result;
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}
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static JSValueRef nativeGetGCStats(
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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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JSGCStats gcStats = {0};
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JSGetGCStats(ctx, &gcStats);
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auto result = facebook::react::Object::create(ctx);
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result.setProperty(
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"last_full_gc_length",
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{ctx, JSValueMakeNumber(ctx, gcStats.lastFullGCLength)});
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result.setProperty(
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"last_eden_gc_length",
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{ctx, JSValueMakeNumber(ctx, gcStats.lastEdenGCLength)});
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return (JSObjectRef) result;
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}
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#endif
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namespace facebook {
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namespace react {
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void addJSCPerfStatsHooks(JSGlobalContextRef ctx) {
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#ifdef JSC_HAS_PERF_STATS_API
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installGlobalFunction(ctx, "nativeGetHeapStats", nativeGetHeapStats);
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installGlobalFunction(ctx, "nativeGetGCStats", nativeGetGCStats);
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#endif
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}
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} }
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