Files
openvehicle-api/sdv_services/ipc_connect/client.cpp

267 lines
9.1 KiB
C++

/********************************************************************************
* Copyright (c) 2025-2026 ZF Friedrichshafen AG
*
* This program and the accompanying materials are made available under the
* terms of the Apache License Version 2.0 which is available at
* https://www.apache.org/licenses/LICENSE-2.0
*
* SPDX-License-Identifier: Apache-2.0
*
* Contributors:
* Erik Verhoeven - initial API and implementation
********************************************************************************/
#include "client.h"
#include <support/toml.h>
#include <interfaces/com.h>
#include <interfaces/ipc.h>
#include <support/pssup.h>
#include <interfaces/app.h>
CRepositoryProxy::CRepositoryProxy(CClientConnect& rClient, sdv::com::TConnectionID tConnection,
sdv::IInterfaceAccess* pRepositoryProxy) :
m_rClient(rClient), m_tConnection(tConnection), m_ptrRepositoryProxy(pRepositoryProxy)
{}
void CRepositoryProxy::DestroyObject()
{
// Call the client to disconnect the connection and destroy the object.
m_rClient.Disconnect();
}
sdv::com::TConnectionID CRepositoryProxy::GetConnectionID() const
{
return m_tConnection;
}
bool CClientConnect::OnInitialize()
{
const sdv::app::IAppContext* pContext = sdv::core::GetCore<sdv::app::IAppContext>();
if (!pContext)
{
SDV_LOG_ERROR("Failed to get application context!");
return false;
}
sdv::com::IConnectionControl* pConnectionControl = sdv::core::GetObject<sdv::com::IConnectionControl>("CommunicationControl");
if (!pConnectionControl)
{
SDV_LOG_ERROR("Failed to get communication control!");
return false;
}
// Check for a provider. Without provider there is no object to use for listening.
if (m_ssProvider.empty())
{
SDV_LOG_ERROR("Missing provider name for creating a client object!");
return false;
}
sdv::ipc::IChannelAccess* pChannelAccess = sdv::core::GetObject<sdv::ipc::IChannelAccess>(m_ssProvider);
if (!pChannelAccess)
{
SDV_LOG_ERROR("Cannot instantiate provider '", m_ssProvider, "' for the creation of a client object!");
return false;
}
// The connection will be established in the Connect function.
return true;
}
void CClientConnect::OnShutdown()
{
sdv::com::IConnectionControl* pConnectionControl = sdv::core::GetObject<sdv::com::IConnectionControl>("CommunicationControl");
if (!pConnectionControl)
SDV_LOG_ERROR("Failed to get communication control!");
// Disconnect
Disconnect();
}
bool CClientConnect::Connect()
{
sdv::u8string ssProvider;
sdv::u8string ssConfig;
{
std::unique_lock<std::mutex> lock(m_mtx);
ssProvider = m_ssProvider;
ssConfig = BuildObjectConfig();
}
const sdv::app::IAppContext* pContext = sdv::core::GetCore<sdv::app::IAppContext>();
if (!pContext)
{
SDV_LOG_ERROR("Failed to get application context!");
return false;
}
sdv::com::IConnectionControl* pConnectionControl = sdv::core::GetObject<sdv::com::IConnectionControl>("CommunicationControl");
if (!pConnectionControl)
{
SDV_LOG_ERROR("Failed to get communication control!");
return false;
}
// Check for a provider. Without provider there is no object to use for listening.
if (ssProvider.empty())
{
SDV_LOG_ERROR("Missing provider name for creating a client object!");
return false;
}
sdv::ipc::IChannelAccess* pChannelAccess = sdv::core::GetObject<sdv::ipc::IChannelAccess>(ssProvider);
if (!pChannelAccess)
{
SDV_LOG_ERROR("Cannot instantiate provider '", m_ssProvider, "' for the creation of a client object!");
return false;
}
// Get the repository
sdv::TInterfaceAccessPtr ptrRespository = sdv::core::GetObject("RepositoryService");
if (!ptrRespository)
{
SDV_LOG_ERROR("Failed to get repository service!");
return false;
}
// Add a dependency of the provider to this service (to prevent the provider to be terminated while the service is still
// running).
sdv::core::IObjectDependency* pObjectDependency = ptrRespository.GetInterface<sdv::core::IObjectDependency>();
if (!pObjectDependency)
{
SDV_LOG_ERROR("Failed to get the object dependency interface!");
return false;
}
pObjectDependency->AddObjectDependency(Self().ssName, ssProvider);
// First access the listener channel. This allows us to access the channel creation interface.
// TODO: Use named mutex to prevent multiple connections at the same time.
// Connect to the channel.
sdv::TObjectPtr ptrListenerEndpoint = pChannelAccess->Access(ssConfig);
// Assign the endpoint to the communication service.
sdv::IInterfaceAccess* pListenerProxy = nullptr;
sdv::com::TConnectionID tListenerConnection =
pConnectionControl->AssignClientEndpoint(ptrListenerEndpoint, 5000, pListenerProxy);
ptrListenerEndpoint.Clear(); // Lifetime has been taken over by communication control.
if (!tListenerConnection || !pListenerProxy)
{
SDV_LOG_ERROR("Could not assign the client endpoint!");
if (tListenerConnection != sdv::com::TConnectionID{}) pConnectionControl->RemoveConnection(tListenerConnection);
return false;
}
sdv::TInterfaceAccessPtr ptrListenerProxy(pListenerProxy);
// Request for a private channel
sdv::com::IRequestChannel* pRequestChannel = ptrListenerProxy.GetInterface<sdv::com::IRequestChannel>();
if (!pRequestChannel)
{
SDV_LOG_ERROR("Could not get the channel creation interface!");
if (tListenerConnection != sdv::com::TConnectionID{}) pConnectionControl->RemoveConnection(tListenerConnection);
return false;
}
sdv::u8string ssRequestConfig;
// Tunnel providers need the full object config so the private channel
// can preserve provider-specific fields such as the tunnel name.
// For shared memory we keep the legacy behavior and let the provider
// create its own private channel details.
if (ssProvider == "unix_domain_sockets_tunnel")
{
ssRequestConfig = ssConfig;
}
else
{
ssRequestConfig.clear();
}
sdv::u8string ssConnectionString = pRequestChannel->RequestChannel(ssRequestConfig);
// Disconnect from the listener
if (tListenerConnection != sdv::com::TConnectionID{}) pConnectionControl->RemoveConnection(tListenerConnection);
if (ssConnectionString.empty())
{
SDV_LOG_ERROR("Could not get the private channel connection information!");
return false;
}
// TODO: Use named mutex to prevent multiple connections at the same time.
// Connect to the privatechannel.
sdv::TObjectPtr ptrPrivateEndpoint = pChannelAccess->Access(ssConnectionString);
// Get and return the proxy
sdv::IInterfaceAccess* pPrivateProxy = nullptr;
sdv::com::TConnectionID tPrivateConnection = pConnectionControl->AssignClientEndpoint(ptrPrivateEndpoint, 5000, pPrivateProxy);
ptrPrivateEndpoint.Clear(); // Lifetime has been taken over by communication control.
if (!tPrivateConnection || !pPrivateProxy)
{
SDV_LOG_ERROR("Could not assign the client endpoint to the private channel!");
if (tPrivateConnection != sdv::com::TConnectionID{}) pConnectionControl->RemoveConnection(tPrivateConnection);
return false;
}
// Create a remote repository object
m_ptrRemoteRepo = std::make_shared<CRepositoryProxy>(*this, tPrivateConnection, pPrivateProxy);
return true;
}
bool CClientConnect::Disconnect()
{
std::unique_lock<std::mutex> lock(m_mtx);
if (!m_ptrRemoteRepo) return false;
// Whatever happens, the connection will be removed
std::shared_ptr<CRepositoryProxy> ptrRemoteRepoLocal = std::move(m_ptrRemoteRepo);
// Disconnect
sdv::com::IConnectionControl* pConnectionControl = sdv::core::GetObject<sdv::com::IConnectionControl>("CommunicationControl");
if (!pConnectionControl)
{
SDV_LOG_ERROR("Failed to get communication control!");
return false;
}
pConnectionControl->RemoveConnection(ptrRemoteRepoLocal->GetConnectionID());
// Get the repository
sdv::TInterfaceAccessPtr ptrRespository = sdv::core::GetObject("RepositoryService");
if (!ptrRespository)
{
SDV_LOG_ERROR("Failed to get repository service!");
return false;
}
// Add a dependency of the provider to this service (to prevent the provider to be terminated while the service is still
// running).
sdv::core::IObjectDependency* pObjectDependency = ptrRespository.GetInterface<sdv::core::IObjectDependency>();
if (!pObjectDependency)
{
SDV_LOG_ERROR("Failed to get the object dependency interface!");
return false;
}
pObjectDependency->RemoveObjectDependency("ClientConnectService", m_ssProvider);
return true;
}
bool CClientConnect::IsConnected() const
{
std::unique_lock<std::mutex> lock(m_mtx);
return m_ptrRemoteRepo ? true : false;
}
sdv::IInterfaceAccess* CClientConnect::GetRemoteRepository()
{
std::unique_lock<std::mutex> lock(m_mtx);
return m_ptrRemoteRepo ? m_ptrRemoteRepo.get() : nullptr;
}