internal static MethodCaller GetMCaller(MethodInfo mi)
{
MethodCaller mCaller;
if (!mCallers.TryGetValue(mi, out mCaller))
{
mCaller = TypeImplementer.GenCaller(mi);
mCallers[mi] = mCaller;
}
return(mCaller);
}
public virtual void HandleMethodCall(MessageContainer method_call)
{
MethodInfo mi;
if (!methodInfoCache.TryGetValue(method_call.Member, out mi))
{
methodInfoCache[method_call.Member] = mi = Mapper.GetMethod(Object.GetType(), method_call);
}
if (mi == null)
{
conn.MaybeSendUnknownMethodError(method_call);
return;
}
MethodCaller mCaller;
if (!mCallers.TryGetValue(mi, out mCaller))
{
mCaller = TypeImplementer.GenCaller(mi);
mCallers[mi] = mCaller;
}
Signature inSig, outSig;
TypeImplementer.SigsForMethod(mi, out inSig, out outSig);
Message msg = method_call.Message;
MessageReader msgReader = new MessageReader(msg);
MessageWriter retWriter = new MessageWriter();
Exception raisedException = null;
try {
mCaller(Object, msgReader, msg, retWriter);
} catch (Exception e) {
raisedException = e;
}
if (!msg.ReplyExpected)
{
return;
}
Message replyMsg;
if (raisedException == null)
{
MessageContainer method_return = new MessageContainer {
Type = MessageType.MethodReturn,
ReplySerial = msg.Header.Serial
};
replyMsg = method_return.Message;
replyMsg.AttachBodyTo(retWriter);
replyMsg.Signature = outSig;
}
else
{
// BusException allows precisely formatted Error messages.
BusException busException = raisedException as BusException;
if (busException != null)
{
replyMsg = method_call.CreateError(busException.ErrorName, busException.ErrorMessage);
}
else if (raisedException is ArgumentException && raisedException.TargetSite.Name == mi.Name)
{
// Name match trick above is a hack since we don't have the resolved MethodInfo.
ArgumentException argException = (ArgumentException)raisedException;
using (System.IO.StringReader sr = new System.IO.StringReader(argException.Message)) {
replyMsg = method_call.CreateError("org.freedesktop.DBus.Error.InvalidArgs", sr.ReadLine());
}
}
else
{
replyMsg = method_call.CreateError(Mapper.GetInterfaceName(raisedException.GetType()), raisedException.Message);
}
}
if (method_call.Sender != null)
{
replyMsg.Header[FieldCode.Destination] = method_call.Sender;
}
conn.Send(replyMsg);
}