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++ // Copyright (C) 2016 basysKom GmbH, opensource@basyskom.com
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #include <private/qopcuabackend_p.h>
++ #include <private/qopcuaclientimpl_p.h>
++ #include <QtOpcUa/qopcuamonitoringparameters.h>
++ #include "qopcuaclient_p.h"
++ #include "qopcuaerrorstate.h"
++
++ QT_BEGIN_NAMESPACE
++
++ QOpcUaClientImpl::QOpcUaClientImpl(QObject *parent)
++ : QObject(parent)
++ , m_client(nullptr)
++ , m_handleCounter(0)
++ {}
++
++ QOpcUaClientImpl::~QOpcUaClientImpl()
++ {}
++
++ bool QOpcUaClientImpl::registerNode(QPointer<QOpcUaNodeImpl> obj)
++ {
++ if (m_handles.size() == (std::numeric_limits<int>::max)())
++ return false;
++
++ while (true) {
++ ++m_handleCounter;
++
++ if (!m_handles.contains(m_handleCounter)) {
++ obj->setHandle(m_handleCounter);
++ m_handles[m_handleCounter] = obj;
++ return true;
++ }
++ }
++ }
++
++ void QOpcUaClientImpl::unregisterNode(QPointer<QOpcUaNodeImpl> obj)
++ {
++ m_handles.remove(obj->handle());
++ }
++
++ void QOpcUaClientImpl::connectBackendWithClient(QOpcUaBackend *backend)
++ {
++ connect(backend, &QOpcUaBackend::attributesRead, this, &QOpcUaClientImpl::handleAttributesRead);
++ connect(backend, &QOpcUaBackend::stateAndOrErrorChanged, this, &QOpcUaClientImpl::stateAndOrErrorChanged);
++ connect(backend, &QOpcUaBackend::attributeWritten, this, &QOpcUaClientImpl::handleAttributeWritten);
++ connect(backend, &QOpcUaBackend::dataChangeOccurred, this, &QOpcUaClientImpl::handleDataChangeOccurred);
++ connect(backend, &QOpcUaBackend::monitoringEnableDisable, this, &QOpcUaClientImpl::handleMonitoringEnableDisable);
++ connect(backend, &QOpcUaBackend::monitoringStatusChanged, this, &QOpcUaClientImpl::handleMonitoringStatusChanged);
++ connect(backend, &QOpcUaBackend::methodCallFinished, this, &QOpcUaClientImpl::handleMethodCallFinished);
++ connect(backend, &QOpcUaBackend::browseFinished, this, &QOpcUaClientImpl::handleBrowseFinished);
++ connect(backend, &QOpcUaBackend::resolveBrowsePathFinished, this, &QOpcUaClientImpl::handleResolveBrowsePathFinished);
++ connect(backend, &QOpcUaBackend::eventOccurred, this, &QOpcUaClientImpl::handleNewEvent);
++ connect(backend, &QOpcUaBackend::endpointsRequestFinished, this, &QOpcUaClientImpl::endpointsRequestFinished);
++ connect(backend, &QOpcUaBackend::findServersFinished, this, &QOpcUaClientImpl::findServersFinished);
++ connect(backend, &QOpcUaBackend::readNodeAttributesFinished, this, &QOpcUaClientImpl::readNodeAttributesFinished);
++ connect(backend, &QOpcUaBackend::writeNodeAttributesFinished, this, &QOpcUaClientImpl::writeNodeAttributesFinished);
++ connect(backend, &QOpcUaBackend::addNodeFinished, this, &QOpcUaClientImpl::addNodeFinished);
++ connect(backend, &QOpcUaBackend::deleteNodeFinished, this, &QOpcUaClientImpl::deleteNodeFinished);
++ connect(backend, &QOpcUaBackend::addReferenceFinished, this, &QOpcUaClientImpl::addReferenceFinished);
++ connect(backend, &QOpcUaBackend::deleteReferenceFinished, this, &QOpcUaClientImpl::deleteReferenceFinished);
++ // This needs to be blocking queued because it is called from another thread, which needs to wait for a result.
++ connect(backend, &QOpcUaBackend::connectError, this, &QOpcUaClientImpl::connectError, Qt::BlockingQueuedConnection);
++ connect(backend, &QOpcUaBackend::passwordForPrivateKeyRequired, this, &QOpcUaClientImpl::passwordForPrivateKeyRequired, Qt::BlockingQueuedConnection);
++ connect(backend, &QOpcUaBackend::registerNodesFinished, this, &QOpcUaClientImpl::registerNodesFinished);
++ connect(backend, &QOpcUaBackend::unregisterNodesFinished, this, &QOpcUaClientImpl::unregisterNodesFinished);
++ }
++
++ void QOpcUaClientImpl::handleAttributesRead(quint64 handle, QList<QOpcUaReadResult> attr, QOpcUa::UaStatusCode serviceResult)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->attributesRead(attr, serviceResult);
++ }
++
++ void QOpcUaClientImpl::handleAttributeWritten(quint64 handle, QOpcUa::NodeAttribute attr, const QVariant &value, QOpcUa::UaStatusCode statusCode)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->attributeWritten(attr, value, statusCode);
++ }
++
++ void QOpcUaClientImpl::handleDataChangeOccurred(quint64 handle, const QOpcUaReadResult &value)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->dataChangeOccurred(value.attribute(), value);
++ }
++
++ void QOpcUaClientImpl::handleMonitoringEnableDisable(quint64 handle, QOpcUa::NodeAttribute attr, bool subscribe, QOpcUaMonitoringParameters status)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->monitoringEnableDisable(attr, subscribe, status);
++ }
++
++ void QOpcUaClientImpl::handleMonitoringStatusChanged(quint64 handle, QOpcUa::NodeAttribute attr, QOpcUaMonitoringParameters::Parameters items, QOpcUaMonitoringParameters param)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->monitoringStatusChanged(attr, items, param);
++ }
++
++ void QOpcUaClientImpl::handleMethodCallFinished(quint64 handle, QString methodNodeId, QVariant result, QOpcUa::UaStatusCode statusCode)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->methodCallFinished(methodNodeId, result, statusCode);
++ }
++
++ void QOpcUaClientImpl::handleBrowseFinished(quint64 handle, const QList<QOpcUaReferenceDescription> &children, QOpcUa::UaStatusCode statusCode)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->browseFinished(children, statusCode);
++ }
++
++ void QOpcUaClientImpl::handleResolveBrowsePathFinished(quint64 handle, QList<QOpcUaBrowsePathTarget> targets,
++ QList<QOpcUaRelativePathElement> path, QOpcUa::UaStatusCode status)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->resolveBrowsePathFinished(targets, path, status);
++ }
++
++ void QOpcUaClientImpl::handleNewEvent(quint64 handle, QVariantList eventFields)
++ {
++ auto it = m_handles.constFind(handle);
++ if (it != m_handles.constEnd() && !it->isNull())
++ emit it.value()->eventOccurred(eventFields);
++ }
++
++ QT_END_NAMESPACE