/usr/include/ola/OlaClientWrapper.h is in libola-dev 0.9.1-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* OlaClientWrapper.h
* This provides a helpful wrapper for the OlaClient & OlaCallbackClient
* classes.
* Copyright (C) 2005 Simon Newton
*
* The OlaClientWrapper classes takes care of setting up the socket, select
* server and client for you.
*/
#ifndef OLA_OLACLIENTWRAPPER_H_
#define OLA_OLACLIENTWRAPPER_H_
#include <ola/AutoStart.h>
#include <ola/OlaCallbackClient.h>
#include <ola/client/OlaClient.h>
#include <ola/io/SelectServer.h>
#include <ola/network/SocketAddress.h>
#include <ola/network/TCPSocket.h>
#include <memory>
namespace ola {
namespace client {
/*
* The base class, not used directly.
*/
class BaseClientWrapper {
public:
BaseClientWrapper() {}
virtual ~BaseClientWrapper();
ola::io::SelectServer *GetSelectServer() { return &m_ss; }
bool Setup();
bool Cleanup();
void SocketClosed();
protected:
std::auto_ptr<ola::network::TCPSocket> m_socket;
private:
ola::io::SelectServer m_ss;
virtual void CreateClient() = 0;
virtual bool StartupClient() = 0;
virtual void InitSocket() = 0;
};
/*
* This wrapper uses the OlaClient class.
*/
template <typename ClientClass>
class GenericClientWrapper: public BaseClientWrapper {
public:
explicit GenericClientWrapper(bool auto_start = true):
BaseClientWrapper(),
m_auto_start(auto_start) {
}
~GenericClientWrapper() {}
ClientClass *GetClient() const { return m_client.get(); }
private:
std::auto_ptr<ClientClass> m_client;
bool m_auto_start;
void CreateClient() {
if (!m_client.get()) {
m_client.reset(new ClientClass(m_socket.get()));
}
}
bool StartupClient() {
bool ok = m_client->Setup();
m_client->SetCloseHandler(
ola::NewSingleCallback(static_cast<BaseClientWrapper*>(this),
&BaseClientWrapper::SocketClosed));
return ok;
}
void InitSocket() {
if (m_auto_start) {
m_socket.reset(ola::client::ConnectToServer(OLA_DEFAULT_PORT));
} else {
m_socket.reset(ola::network::TCPSocket::Connect(
ola::network::IPV4SocketAddress(
ola::network::IPV4Address::Loopback(),
OLA_DEFAULT_PORT)));
}
m_socket->SetNoDelay();
}
};
typedef GenericClientWrapper<OlaClient> OlaClientWrapper;
} // namespace client
// Legacy
typedef ola::client::GenericClientWrapper<OlaCallbackClient>
OlaCallbackClientWrapper;
} // namespace ola
#endif // OLA_OLACLIENTWRAPPER_H_
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