// Handle ping message from client
static AJ_Status AppHandlePing(AJ_Message msg, AJ myAlljoyn)
{
AJ_Status status;
AJ_Message reply = new AJ_Message();
UInt32 argPtr = myAlljoyn.GetArgPtr(3);
status = myAlljoyn.UnmarshalArg(msg, argPtr);
if (AJ_Status.AJ_OK == status)
{
string msgArg = myAlljoyn.GetArgString(3);
Debug.Print("Received ping request " + msgArg);
status = myAlljoyn.MarshalReplyMsg(msg, reply);
if (AJ_Status.AJ_OK == status)
{
// Just return the arg we received
status = myAlljoyn.MarshalArg(reply, "s", msgArg);
if (AJ_Status.AJ_OK == status)
{
status = myAlljoyn.DeliverMsg(reply);
}
}
}
return(status);
}
public static void Main()
{
AJ_Status status = AJ_Status.AJ_OK;
UInt32 bus = 0;
bool connected = false;
bool done = false;
UInt32 sessionId = 0;
AJ myAlljoyn = new AJ();
myAlljoyn.CreateBus(ref bus);
myAlljoyn.Initialize();
myAlljoyn.RegisterObjectsInterface(new AJ_Object( )
{
path = ServicePath, interfaces = SampleInterface
}, false, false);
// Attach to Netowrk Link state change notifications
var netmon = new NetworkStateMonitor();
int retry = 0;
while (!done)
{
netmon.WaitForIpAddress();
AJ_Message msg = new AJ_Message();
if (!connected)
{
do
{
status = myAlljoyn.ClientConnectBus(bus, null, CONNECT_TIMEOUT);
} while (status != AJ_Status.AJ_OK);
do
{
status = myAlljoyn.ClientFindService(bus, ServiceName, null, CONNECT_TIMEOUT);
} while (status != AJ_Status.AJ_OK);
retry = 0;
do
{
status = myAlljoyn.ClientConnectService(bus, CONNECT_TIMEOUT, ServiceName, ServicePort, ref sessionId, null, ref fullServiceName);
if (retry++ > 10)
{
break;
}
} while (status != AJ_Status.AJ_OK);
if (status == AJ_Status.AJ_OK)
{
connected = true;
MakeMethodCall(bus, sessionId, myAlljoyn);
}
else
{
Debug.Print("Timed out");
myAlljoyn.Disconnect(bus);
continue;
}
}
status = myAlljoyn.UnmarshalMsg(bus, msg, UNMARSHAL_TIMEOUT);
if (AJ_Status.AJ_ERR_TIMEOUT == status)
{
continue;
}
if (AJ_Status.AJ_OK == status)
{
if (msg.msgId == AJ_REPLY_ID(BASIC_CLIENT_CAT))
{
UInt32 argPtr = myAlljoyn.GetArgPtr(4);
status = myAlljoyn.UnmarshalArg(msg, argPtr);
string value = myAlljoyn.GetArgString(4);
if (AJ_Status.AJ_OK == status)
{
Debug.Print(ServiceName + "cat returned " + value);
done = true;
}
else
{
MakeMethodCall(bus, sessionId, myAlljoyn);
}
}
else if (msg.msgId == AJ_SIGNAL_SESSION_LOST_WITH_REASON)
{
{
UInt32 id = 0, reason = 0;
myAlljoyn.UnmarshalArgs(msg, "uu", ref id, ref reason);
}
status = AJ_Status.AJ_ERR_SESSION_LOST;
}
else
{
/* Pass to the built-in handlers. */
status = myAlljoyn.BusHandleBusMessage(msg, bus, ServicePort);
}
}
/* Messages MUST be discarded to free resources. */
myAlljoyn.CloseMsg(msg);
if (status == AJ_Status.AJ_ERR_SESSION_LOST)
{
myAlljoyn.Disconnect(bus);
//exit(0);
}
}
}
public static void Main()
{
// Define device interface. Interfaces beginning with
// dollar sign ('$') are deemed secure
string[] deviceInterface =
{
"$org.alljoyn.bus.samples.secure.SecureInterface",
"?Ping inStr<s outStr>s",
" "
};
AJ_Status status = AJ_Status.AJ_OK;
AJ_Status authStatus = AJ_Status.AJ_ERR_NULL;
UInt32 bus = 0;
bool connected = false;
bool done = false;
UInt32 sessionId = 0;
AJ myAlljoyn = new AJ();
// Initialize Alljoyn object
myAlljoyn.CreateBus(ref bus);
myAlljoyn.Initialize();
myAlljoyn.RegisterObjectsInterface(new AJ_Object()
{
path = ServicePath, interfaces = deviceInterface
}, false, false);
// Attach to Netowrk Link state change notifications
var netmon = new NetworkStateMonitor();
while (!done)
{
netmon.WaitForIpAddress();
AJ_Message msg = new AJ_Message();
if (!connected)
{
// the original AJ_StartClientByName is splitted into 3 functions instead of one, as it will block the other CLR functions
// and have a more efficient connection, especially when the service it is looking for is not existed yet. Instead of
// keep connect and disconnect to router, send the findserive, we can just wait at the 3rd stage,ClientConnectservice.
//
// 1st stage - ClientconnectBus , found router and attached bus to it, wait until router found or timeout is set.
// 2nd stage - ClientFindService, Adverstise the service it is looking for
// 3rd stage - ClientConnectService, Connect to the services it is looking for, it will wait until the service pop up or timeout is set,
do
{
status = myAlljoyn.ClientConnectBus(bus,
null,
CONNECT_TIMEOUT);
}while (status != AJ_Status.AJ_OK);
do
{
status = myAlljoyn.ClientFindService(bus,
ServiceName,
null,
CONNECT_TIMEOUT);
}while (status != AJ_Status.AJ_OK);
int retry = 0;
do
{
status = myAlljoyn.ClientConnectService(bus,
CONNECT_TIMEOUT,
ServiceName,
ServicePort,
ref sessionId,
null,
ref FullServiceName);
// user can break from this call, instead of having a while loop
retry++;
if (retry > 10)
{
break;
}
} while (status != AJ_Status.AJ_OK);
// if break from here, need to call myAlljoyn.Disconnect(bus);
if (status != AJ_Status.AJ_OK)
{
myAlljoyn.Disconnect(bus);
}
if (status == AJ_Status.AJ_OK)
{
connected = true;
authStatus = AJ_Status.AJ_ERR_NULL;
// Provide credentials for all security
// suites by setting write-only properties.
// Only the security suites specified
// in SecuritySuites will be used
myAlljoyn.KeyExpiration = KeyExpiration;
myAlljoyn.PskHint = PskHint;
myAlljoyn.PskString = PskChar;
myAlljoyn.PemPriv = PemPrv;
myAlljoyn.PemX509 = PemX509;
// Enable security suites
myAlljoyn.EnableSecurity(bus, SecuritySuites);
// Clear any stored credentials
myAlljoyn.ClearCredentials();
// Begin authentication process with the service. This is
// an asynchronous process so we will need to poll the
// authStatus value during the main message processing loop
status = myAlljoyn.AuthenticatePeer(bus, FullServiceName);
if (status != AJ_Status.AJ_OK)
{
Debug.Print("AJ_BusAuthenticatePeer returned " + status.ToString());
break;
}
}
else
{
continue;
}
}
// Poll for authStatus to determine when
// authentication handshaking is complete.
authStatus = myAlljoyn.GetAuthStatus();
if (authStatus != AJ_Status.AJ_ERR_NULL)
{
if (authStatus != AJ_Status.AJ_OK)
{
myAlljoyn.Disconnect(bus);
break;
}
// We set the authStatus to NULL when the
// handshaking is finished to indicate that
// we should proceed with normal alljoyn
// message processing
myAlljoyn.SetAuthStatus(AJ_Status.AJ_ERR_NULL);
// Make ping method call to service
status = SendPing(bus, sessionId, myAlljoyn);
if (status != AJ_Status.AJ_OK)
{
Debug.Print("SendPing returned " + status.ToString());
continue;
}
}
// process messages from the router
status = myAlljoyn.UnmarshalMsg(bus, msg, UNMARSHAL_TIMEOUT);
if (AJ_Status.AJ_ERR_TIMEOUT == status)
{
continue;
}
if (AJ_Status.AJ_OK == status)
{
// Handle Ping response
if (msg.msgId == AJ_REPLY_ID(PING_METHOD))
{
UInt32 argPtr = myAlljoyn.GetArgPtr(4);
if (AJ_Status.AJ_OK == myAlljoyn.UnmarshalArg(msg, argPtr))
{
string value = myAlljoyn.GetArgString(4);
if (value == pingString)
{
Debug.Print("Ping was successful");
}
else
{
Debug.Print("Ping returned different string");
}
}
else
{
}
done = true;
}
else if (msg.msgId == AJ_SIGNAL_SESSION_LOST_WITH_REASON)
{
// Just eating the reason for this demo, in production
// reason should be inspected and acted upon
{
UInt32 id = 0, reason = 0;
myAlljoyn.UnmarshalArgs(msg, "uu", ref id, ref reason);
}
status = AJ_Status.AJ_ERR_SESSION_LOST;
}
else
{
// Pass to the built-in handlers
status = myAlljoyn.BusHandleBusMessage(msg, bus, ServicePort);
}
}
// Clean up
myAlljoyn.CloseMsg(msg);
if (status == AJ_Status.AJ_ERR_SESSION_LOST)
{
myAlljoyn.Disconnect(bus);
}
}
}