any way to know how much bytes used for object serialization?

[mathgl]

Hi All..

I have a question about the size of object. As we know all objects before being sent to lan need to map to a sequence of bytes, Do you have any way to know how much bytes an object does occupy. I want to know this number for testing purpose....

[benoit]

Hi,

You can get the size of a request using protocol tracing by setting Ice.Trace.Protocol=1. Another option is to marshal the object into a byte sequence using the Ice streaming API and measure the size of the byte sequence.

Cheers,
Benoit.

[mathgl]

Hi Benoit

Thanks for your reply. After checking chapter 36.2, i used slice2cs with --stream to generate the .ice file again for serialization purpose. however when i checked the generated file i found a piece of codes like:

public override void write__(Ice.OutputStream outS__)
{
Ice.MarshalException ex = new Ice.MarshalException();
ex.reason = "type RoundTech::TTianHeInstantMessage was not generated with stream support";
throw ex;
}

Could you please give me a guide how to let a type support stream?

Thanks.

[benoit]

Hi,

Which Ice version do you use and on which platform? This should work. With Ice 3.4.0, you can try out the C# Ice/invoke demo for an example on how to marshall various Slice structures with the Ice streaming API.

Cheers,
Benoit.

[mathgl]

Hi Benoit.

Thanks for your reply. It was a typo actually. I use a macro command to invoke slice2cs. adding --stream didn't work at first until i fixed it.

Now it works. Thanks again..

[mathgl]

Hi,

Which Ice version do you use and on which platform? This should work. With Ice 3.4.0, you can try out the C# Ice/invoke demo for an example on how to marshall various Slice structures with the Ice streaming API.

Cheers,
Benoit.

Hi Benoit

i want to know another thing about sequence type. In my ice file i have two definitions for sequence<string>. I show the code as follow:

sequence<string> StringArrayType;

["clr:generic:List"]
sequence<string> StringListType;

this file works perfect without --stream. When i try to use the generated .cs file which is compiled with --stream. The compiler comlains there are no proper overload methods for StringSeqHelper outputstream/inputstream.

If i drop down one of them, now it works again with --stream. Do you have any idea about that??

Thanks..

[benoit]

Hi

I'm afraid you just found a bug in the Ice streaming API

The generated C# code won't compile if it contains custom types such as ["clr:generic:List"] and if it's generated with --stream. We'll fix this, thanks for the report!

Cheers,
Benoit.

[mathgl]

Hi Benoit

I am using ICE 3.3.2 instead of 3.4, so probably this bug has been fixed....

[benoit]

Hi,

Actually, you're the first one to discover this bug so it isn't fixed in 3.4. It will be fixed in next version. Thanks again for the bug report.

Cheers,
Benoit.