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/**
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This file is part of CWRT package **
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). **
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU (Lesser) General Public License as
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published by the Free Software Foundation, version 2.1 of the License.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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(Lesser) General Public License for more details. You should have
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received a copy of the GNU (Lesser) General Public License along
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with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "serviceipcclient.h"
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#include "serviceipc.h"
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namespace WRT
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{
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/*!
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\class ServiceIPCClient
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This class is an extension to the current ServiceIPCClient interface
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with the additional functionality of receiving messages from the server
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*/
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/*!
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Destructor
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*/
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ServiceIPCClient::~ServiceIPCClient()
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{
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delete m_syncIPC;
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delete m_asyncIPC;
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delete m_broadcastIPC;
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}
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/*!
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Constructor
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@param aBackend IPC backend to use
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@param aParent Parent to this QObject
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*/
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ServiceIPCClient::ServiceIPCClient(QObject* aParent, TServiceIPCBackends aBackend) :
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QObject(aParent)
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{
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m_syncIPC = new ServiceFwIPC(aParent, aBackend);
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m_asyncIPC = new ServiceFwIPC(aParent, aBackend);
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m_broadcastIPC = new ServiceFwIPC(aParent, aBackend);
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QObject::connect(m_asyncIPC, SIGNAL(readyRead()), this, SLOT(handleAsyncMsg()));
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QObject::connect(m_broadcastIPC, SIGNAL(readyRead()), this, SLOT(handleBroadcastMsg()));
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}
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/*!
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Connect to the server
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@param aServerName name of the server to connect to
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@return true if connected, false if not
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*/
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bool ServiceIPCClient::connect(const QString& aServerName)
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{
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bool ret;
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ret = m_syncIPC->connect(aServerName);
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if (ret) {
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int sessionId;
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ret = m_syncIPC->getSessionId(sessionId);
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if (ret) {
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m_sessionId = sessionId;
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ret = m_asyncIPC->connect(aServerName);
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if (ret) {
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ret = m_asyncIPC->setSessionId(sessionId);
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if (ret) {
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ret = m_broadcastIPC->connect(aServerName);
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if (ret) {
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ret = m_broadcastIPC->setSessionId(sessionId);
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if (!ret) {
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//async. IPC set session ID fail, disconnect broadcast IPC
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m_broadcastIPC->disconnect();
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}
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else {
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subscribeBroadcastMsg();
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}
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}
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}
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if (!ret) {
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//async. IPC set session ID fail or broadcast IPC connect fail, disconnect async IPC
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m_asyncIPC->disconnect();
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}
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}
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}
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if (!ret) {
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m_syncIPC->disconnect(); //get sessionId failed or async. IPC connect fail, disconnect sync IPC
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}
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}
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return ret;
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}
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/*!
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Disconnect from the server
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@return void
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*/
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void ServiceIPCClient::disconnect()
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{
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m_syncIPC->disconnect();
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m_asyncIPC->disconnect();
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m_broadcastIPC->disconnect();
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}
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/*!
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Starts the service
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@param aServerName name of the server
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@param aExeName executable of the server
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@return true if connected
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*/
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bool ServiceIPCClient::startServer(const QString& aServerName,
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const QString& aExeName)
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{
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return m_syncIPC->startServer(aServerName, aExeName);
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}
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/*!
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Send a request synchronously
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@param aRequestType name of the request
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@param aData data to send
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@return true if sent successful, otherwise false
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*/
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bool ServiceIPCClient::sendSync(const QString& aRequestType,
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const QByteArray& aData)
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{
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return m_syncIPC->sendSync(aRequestType, aData);
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}
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/*!
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Send a request asynchronously
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@param aRequestType name of the request
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@param aData data to send
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@note Errors will be emitted via errors() signal
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@return void
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*/
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void ServiceIPCClient::sendAsync(const QString& aRequestType,
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const QByteArray& aData)
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{
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m_asyncIPC->sendAsync(aRequestType, aData);
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}
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/*!
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Reads all data pending in the buffer.\n
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For Sync version this will wait until all of the data is available.\n
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@return QByteArray of results
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*/
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QByteArray ServiceIPCClient::readAll()
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{
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return m_syncIPC->readAll();
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}
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/*!
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Check if an async request is already pending
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@return true if an async request is pending
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false otherwise
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*/
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/*bool ServiceIPCClient::requestPending()
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{
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return m_asyncIPC->requestPending();
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}*/
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/*!
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Reads all data pending in the buffer.\n
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For Async version it will return the currently read buffer.\n
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Use only after readyRead() signal is emitted. However partial data can be read
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*/
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void ServiceIPCClient::handleAsyncMsg()
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{
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// Read the results
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QByteArray ipcResult(m_asyncIPC->readAll());
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if (!ipcResult.isEmpty()) {
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emit readAsync(ipcResult);
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}
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}
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/*!
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Client side interface to subscribe broadcast message
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*/
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void ServiceIPCClient::subscribeBroadcastMsg()
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{
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QString null;
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m_broadcastIPC->sendAsync(SUBSCRIBEBROADCASTMSG, null.toAscii());
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}
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/*!
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Reads all data pending in the buffer.\n
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For broadcast version it will return the currently read buffer.\n
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Use only after readyRead() signal is emitted. However partial data can be read
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*/
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void ServiceIPCClient::handleBroadcastMsg()
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{
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// Read the results
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QByteArray ipcResult(m_broadcastIPC->readAll());
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if (!ipcResult.isEmpty()) {
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emit handleMessage(ipcResult);
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subscribeBroadcastMsg();
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}
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}
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}
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/*!
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\fn WRT::ServiceIPCClient::error( int aError )
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Signal emitted to handle any errors
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@param aError error code
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@note: For local socket implementation, the error can be interpreted
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as QLocalSocket::LocalSocketError
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@return void
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*/
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/*!
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\fn WRT::ServiceIPCClient::readyRead()
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Handle when a reply has been received for async requests\n
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Emitted when the entire data packet has been received
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@return void
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*/
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// END OF FILE
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