C++ StringHash::ToString方法代码示例

StringHash StringHashRegister::RegisterString(const StringHash& hash, const char* string)
{
    if (mutex_)
        mutex_->Acquire();

    auto iter = map_.find(hash);
    if (iter == map_.end())
    {
        map_[hash] = string;
    }
    else if (iter->compare(string, Qt::CaseInsensitive) != 0)
    {
        URHO3D_LOGWARNING(QString::asprintf("StringHash collision detected! Both \"%s\" and \"%s\" have hash #%s",
            string, qPrintable(*iter), qPrintable(hash.ToString())));
    }

    if (mutex_)
        mutex_->Release();

    return hash;
}

StringHash StringHashRegister::RegisterString(const StringHash& hash, const char* string)
{
    if (mutex_)
        mutex_->Acquire();

    auto iter = map_.Find(hash);
    if (iter == map_.End())
    {
        map_.Populate(hash, string);
    }
    else if (iter->second_.Compare(string, false) != 0)
    {
        URHO3D_LOGWARNINGF("StringHash collision detected! Both \"%s\" and \"%s\" have hash #%s",
            string, iter->second_.CString(), hash.ToString().CString());
    }

    if (mutex_)
        mutex_->Release();

    return hash;
}

void Node::SetNetParentAttr(const PODVector<unsigned char>& value)
{
    Scene* scene = GetScene();
    if (!scene)
        return;

    MemoryBuffer buf(value);
    // If nothing in the buffer, parent is the root node
    if (buf.IsEof())
    {
        scene->AddChild(this);
        return;
    }

    unsigned baseNodeID = buf.ReadNetID();
    Node* baseNode = scene->GetNode(baseNodeID);
    if (!baseNode)
    {
        LOGWARNING("Failed to find parent node " + String(baseNodeID));
        return;
    }

    // If buffer contains just an ID, the parent is replicated and we are done
    if (buf.IsEof())
        baseNode->AddChild(this);
    else
    {
        // Else the parent is local and we must find it recursively by name hash
        StringHash nameHash = buf.ReadStringHash();
        Node* parentNode = baseNode->GetChild(nameHash, true);
        if (!parentNode)
            LOGWARNING("Failed to find parent node with name hash " + nameHash.ToString());
        else
            parentNode->AddChild(this);
    }
}

bool BackgroundLoader::QueueResource(StringHash type, const ea::string& name, bool sendEventOnFailure, Resource* caller)
{
    StringHash nameHash(name);
    ea::pair<StringHash, StringHash> key = ea::make_pair(type, nameHash);

    MutexLock lock(backgroundLoadMutex_);

    // Check if already exists in the queue
    if (backgroundLoadQueue_.find(key) != backgroundLoadQueue_.end())
        return false;

    BackgroundLoadItem& item = backgroundLoadQueue_[key];
    item.sendEventOnFailure_ = sendEventOnFailure;

    // Make sure the pointer is non-null and is a Resource subclass
    item.resource_ = DynamicCast<Resource>(owner_->GetContext()->CreateObject(type));
    if (!item.resource_)
    {
        URHO3D_LOGERROR("Could not load unknown resource type " + type.ToString());

        if (sendEventOnFailure && Thread::IsMainThread())
        {
            using namespace UnknownResourceType;

            VariantMap& eventData = owner_->GetEventDataMap();
            eventData[P_RESOURCETYPE] = type;
            owner_->SendEvent(E_UNKNOWNRESOURCETYPE, eventData);
        }

        backgroundLoadQueue_.erase(key);
        return false;
    }

    URHO3D_LOGDEBUG("Background loading resource " + name);

    item.resource_->SetName(name);
    item.resource_->SetAsyncLoadState(ASYNC_QUEUED);

    // If this is a resource calling for the background load of more resources, mark the dependency as necessary
    if (caller)
    {
        ea::pair<StringHash, StringHash> callerKey = ea::make_pair(caller->GetType(), caller->GetNameHash());
        auto j = backgroundLoadQueue_.find(
            callerKey);
        if (j != backgroundLoadQueue_.end())
        {
            BackgroundLoadItem& callerItem = j->second;
            item.dependents_.insert(callerKey);
            callerItem.dependencies_.insert(key);
        }
        else
            URHO3D_LOGWARNING("Resource " + caller->GetName() +
                       " requested for a background loaded resource but was not in the background load queue");
    }

    // Start the background loader thread now
    if (!IsStarted())
        Run();

    return true;
}

void JSEventHelper::HandleEvent(StringHash eventType, VariantMap& eventData)
{
    if (object_.Null())
        return;

    JSVM* vm = JSVM::GetJSVM(0);
    duk_context* ctx = vm->GetJSContext();

    duk_idx_t top = duk_get_top(ctx);

    js_push_class_object_instance(ctx, this);

    duk_get_prop_string(ctx, -1, "__eventHelperFunctions");

    assert(duk_is_object(ctx, -1));

    duk_get_prop_string(ctx, -1, eventType.ToString().CString());

    if (duk_is_function(ctx, -1))
    {
        // look in the variant map cache
        duk_push_global_stash(ctx);
        duk_get_prop_index(ctx, -1, JS_GLOBALSTASH_VARIANTMAP_CACHE);
        duk_push_pointer(ctx, (void*) &eventData);
        duk_get_prop(ctx, -2);

        if (!duk_is_object(ctx, -1))
        {
            // pop result
            duk_pop(ctx);

            // we need to push a new variant map and store to cache
            // the cache object will be cleared at the send end in  the
            // global listener above
            js_push_variantmap(ctx, eventData);
            duk_push_pointer(ctx, (void*) &eventData);
            duk_dup(ctx, -2);
            duk_put_prop(ctx, -4);

        }

        duk_remove(ctx, -2); // vmap cache
        duk_remove(ctx, -2); // global stash

        if (duk_pcall(ctx, 1) != 0)
        {
            vm->SendJSErrorEvent();
        }
        else
        {
            // For widget events, need to check return value
            // and set whether handled
            if (eventType == E_WIDGETEVENT)
            {
                if (duk_is_boolean(ctx, -1))
                {
                    if (duk_to_boolean(ctx, -1))
                    {
                        eventData[WidgetEvent::P_HANDLED] = true;
                    }
                }
            }
        }
    }

    duk_set_top(ctx, top);

}