barrier/src/lib/ipc/CIpcServerProxy.cpp

123 lines
3.0 KiB
C++

/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2012 Bolton Software Ltd.
* Copyright (C) 2012 Nick Bolton
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "CIpcServerProxy.h"
#include "IStream.h"
#include "TMethodEventJob.h"
#include "CLog.h"
#include "CIpcMessage.h"
#include "Ipc.h"
#include "CProtocolUtil.h"
//
// CIpcServerProxy
//
CIpcServerProxy::CIpcServerProxy(synergy::IStream& stream, IEventQueue* events) :
m_stream(stream),
m_events(events)
{
m_events->adoptHandler(m_events->forIStream().inputReady(),
stream.getEventTarget(),
new TMethodEventJob<CIpcServerProxy>(
this, &CIpcServerProxy::handleData));
}
CIpcServerProxy::~CIpcServerProxy()
{
m_events->removeHandler(m_events->forIStream().inputReady(),
m_stream.getEventTarget());
}
void
CIpcServerProxy::handleData(const CEvent&, void*)
{
LOG((CLOG_DEBUG "start ipc handle data"));
UInt8 code[4];
UInt32 n = m_stream.read(code, 4);
while (n != 0) {
LOG((CLOG_DEBUG "ipc read: %c%c%c%c",
code[0], code[1], code[2], code[3]));
CIpcMessage* m = nullptr;
if (memcmp(code, kIpcMsgLogLine, 4) == 0) {
m = parseLogLine();
}
else if (memcmp(code, kIpcMsgShutdown, 4) == 0) {
m = new CIpcShutdownMessage();
}
else {
LOG((CLOG_ERR "invalid ipc message"));
disconnect();
}
// don't delete with this event; the data is passed to a new event.
CEvent e(m_events->forCIpcServerProxy().messageReceived(), this, NULL, CEvent::kDontFreeData);
e.setDataObject(m);
m_events->addEvent(e);
n = m_stream.read(code, 4);
}
LOG((CLOG_DEBUG "finished ipc handle data"));
}
void
CIpcServerProxy::send(const CIpcMessage& message)
{
LOG((CLOG_DEBUG "ipc write: %d", message.type()));
switch (message.type()) {
case kIpcHello: {
const CIpcHelloMessage& hm = static_cast<const CIpcHelloMessage&>(message);
CProtocolUtil::writef(&m_stream, kIpcMsgHello, hm.clientType());
break;
}
case kIpcCommand: {
const CIpcCommandMessage& cm = static_cast<const CIpcCommandMessage&>(message);
CString command = cm.command();
CProtocolUtil::writef(&m_stream, kIpcMsgCommand, &command);
break;
}
default:
LOG((CLOG_ERR "ipc message not supported: %d", message.type()));
break;
}
}
CIpcLogLineMessage*
CIpcServerProxy::parseLogLine()
{
CString logLine;
CProtocolUtil::readf(&m_stream, kIpcMsgLogLine + 4, &logLine);
// must be deleted by event handler.
return new CIpcLogLineMessage(logLine);
}
void
CIpcServerProxy::disconnect()
{
LOG((CLOG_DEBUG "ipc disconnect, closing stream"));
m_stream.close();
}