70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
// Copyright 2004-present Facebook. All Rights Reserved.
|
|
|
|
#include "JSCPerfStats.h"
|
|
|
|
#ifdef JSC_HAS_PERF_STATS_API
|
|
|
|
#include <JavaScriptCore/JSPerfStats.h>
|
|
#include <jschelpers/JSCHelpers.h>
|
|
#include <jschelpers/Value.h>
|
|
|
|
using namespace facebook::react;
|
|
|
|
static JSValueRef nativeGetHeapStats(
|
|
JSContextRef ctx,
|
|
JSObjectRef function,
|
|
JSObjectRef thisObject,
|
|
size_t argumentCount,
|
|
const JSValueRef arguments[],
|
|
JSValueRef* exception) {
|
|
JSHeapStats heapStats = {0};
|
|
JSGetHeapStats(ctx, &heapStats);
|
|
|
|
auto result = facebook::react::Object::create(ctx);
|
|
result.setProperty("size", {ctx, Value::makeNumber(ctx, heapStats.size)});
|
|
result.setProperty("extra_size", {ctx, Value::makeNumber(ctx, heapStats.extraSize)});
|
|
result.setProperty("capacity", {ctx, Value::makeNumber(ctx, heapStats.capacity)});
|
|
result.setProperty("object_count", {ctx, Value::makeNumber(ctx, heapStats.objectCount)});
|
|
result.setProperty("object_size", {ctx, Value::makeNumber(ctx, heapStats.objectSizeAfterLastCollect)});
|
|
result.setProperty("object_capacity", {ctx, Value::makeNumber(ctx, heapStats.objectCapacityAfterLastCollect)});
|
|
result.setProperty("block_size", {ctx, Value::makeNumber(ctx, heapStats.blockSize)});
|
|
result.setProperty("malloc_size", {ctx, Value::makeNumber(ctx, heapStats.mallocSize)});
|
|
|
|
return (JSObjectRef) result;
|
|
}
|
|
|
|
static JSValueRef nativeGetGCStats(
|
|
JSContextRef ctx,
|
|
JSObjectRef function,
|
|
JSObjectRef thisObject,
|
|
size_t argumentCount,
|
|
const JSValueRef arguments[],
|
|
JSValueRef* exception) {
|
|
JSGCStats gcStats = {0};
|
|
JSGetGCStats(ctx, &gcStats);
|
|
|
|
auto result = facebook::react::Object::create(ctx);
|
|
result.setProperty(
|
|
"last_full_gc_length",
|
|
{ctx, Value::makeNumber(ctx, gcStats.lastFullGCLength)});
|
|
result.setProperty(
|
|
"last_eden_gc_length",
|
|
{ctx, Value::makeNumber(ctx, gcStats.lastEdenGCLength)});
|
|
|
|
return (JSObjectRef) result;
|
|
}
|
|
|
|
#endif
|
|
|
|
namespace facebook {
|
|
namespace react {
|
|
|
|
void addJSCPerfStatsHooks(JSGlobalContextRef ctx) {
|
|
#ifdef JSC_HAS_PERF_STATS_API
|
|
installGlobalFunction(ctx, "nativeGetHeapStats", nativeGetHeapStats);
|
|
installGlobalFunction(ctx, "nativeGetGCStats", nativeGetGCStats);
|
|
#endif
|
|
}
|
|
|
|
} }
|