Import Upstream version 2.0.0+dfsgupstream/2.0.0+dfsg

1 files changed, 123 insertions, 0 deletions

diff --git a/src/lib/ipc/IpcServerProxy.cpp b/src/lib/ipc/IpcServerProxy.cpp
new file mode 100644
index 0000000..820e1ab
--- /dev/null
+++ b/src/lib/ipc/IpcServerProxy.cpp
@@ -0,0 +1,123 @@
+/*
+ * barrier -- mouse and keyboard sharing utility
+ * Copyright (C) 2012-2016 Symless 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 LICENSE 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 "ipc/IpcServerProxy.h"
+
+#include "ipc/IpcMessage.h"
+#include "ipc/Ipc.h"
+#include "barrier/ProtocolUtil.h"
+#include "io/IStream.h"
+#include "base/TMethodEventJob.h"
+#include "base/Log.h"
+
+//
+// IpcServerProxy
+//
+
+IpcServerProxy::IpcServerProxy(barrier::IStream& stream, IEventQueue* events) :
+    m_stream(stream),
+    m_events(events)
+{
+    m_events->adoptHandler(m_events->forIStream().inputReady(),
+        stream.getEventTarget(),
+        new TMethodEventJob<IpcServerProxy>(
+        this, &IpcServerProxy::handleData));
+}
+
+IpcServerProxy::~IpcServerProxy()
+{
+    m_events->removeHandler(m_events->forIStream().inputReady(),
+        m_stream.getEventTarget());
+}
+
+void
+IpcServerProxy::handleData(const Event&, 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]));
+        
+        IpcMessage* m = nullptr;
+        if (memcmp(code, kIpcMsgLogLine, 4) == 0) {
+            m = parseLogLine();
+        }
+        else if (memcmp(code, kIpcMsgShutdown, 4) == 0) {
+            m = new IpcShutdownMessage();
+        }
+        else {
+            LOG((CLOG_ERR "invalid ipc message"));
+            disconnect();
+        }
+        
+        // don't delete with this event; the data is passed to a new event.
+        Event e(m_events->forIpcServerProxy().messageReceived(), this, NULL, Event::kDontFreeData);
+        e.setDataObject(m);
+        m_events->addEvent(e);
+
+        n = m_stream.read(code, 4);
+    }
+    
+    LOG((CLOG_DEBUG "finished ipc handle data"));
+}
+
+void
+IpcServerProxy::send(const IpcMessage& message)
+{
+    LOG((CLOG_DEBUG4 "ipc write: %d", message.type()));
+
+    switch (message.type()) {
+    case kIpcHello: {
+        const IpcHelloMessage& hm = static_cast<const IpcHelloMessage&>(message);
+        ProtocolUtil::writef(&m_stream, kIpcMsgHello, hm.clientType());
+        break;
+    }
+
+    case kIpcCommand: {
+        const IpcCommandMessage& cm = static_cast<const IpcCommandMessage&>(message);
+        const String command = cm.command();
+        ProtocolUtil::writef(&m_stream, kIpcMsgCommand, &command);
+        break;
+    }
+
+    default:
+        LOG((CLOG_ERR "ipc message not supported: %d", message.type()));
+        break;
+    }
+}
+
+IpcLogLineMessage*
+IpcServerProxy::parseLogLine()
+{
+    String logLine;
+    ProtocolUtil::readf(&m_stream, kIpcMsgLogLine + 4, &logLine);
+    
+    // must be deleted by event handler.
+    return new IpcLogLineMessage(logLine);
+}
+
+void
+IpcServerProxy::disconnect()
+{
+    LOG((CLOG_DEBUG "ipc disconnect, closing stream"));
+    m_stream.close();
+}