Tools/DumpRenderTree/GCController.cpp

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#include "config.h"
#include "GCController.h"

#include "JSBasics.h"

// Static Functions

static JSValueRef collectCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    auto& controller = *static_cast<GCController*>(JSObjectGetPrivate(thisObject));
    controller.collect();
    return JSValueMakeUndefined(context);
}

static JSValueRef collectOnAlternateThreadCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    auto& controller = *static_cast<GCController*>(JSObjectGetPrivate(thisObject));
    bool waitUntilDone = argumentCount > 0 && JSValueToBoolean(context, arguments[0]);
    controller.collectOnAlternateThread(waitUntilDone);
    return JSValueMakeUndefined(context);
}

static JSValueRef getJSObjectCountCallback(JSContextRef context, JSObjectRef function, JSObjectRef thisObject, size_t argumentCount, const JSValueRef arguments[], JSValueRef* exception)
{
    auto& controller = *static_cast<GCController*>(JSObjectGetPrivate(thisObject));
    return JSValueMakeNumber(context, controller.getJSObjectCount());
}

// Object Creation

void GCController::makeWindowObject(JSContextRef context)
{
    WTR::setGlobalObjectProperty(context, "GCController", JSObjectMake(context, createJSClass().get(), this));
}

JSRetainPtr<JSClassRef> GCController::createJSClass()
{
    static constexpr JSStaticFunction functions[] = {
        { "collect", collectCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "collectOnAlternateThread", collectOnAlternateThreadCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { "getJSObjectCount", getJSObjectCountCallback, kJSPropertyAttributeReadOnly | kJSPropertyAttributeDontDelete },
        { 0, 0, 0 }
    };
    static const JSClassDefinition definition = {
        0, kJSClassAttributeNone, "GCController", 0, 0, functions,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
    };
    return adopt(JSClassCreate(&definition));
}