C# and pipes

[Laurent Navarro]

Hello,


I'm currently working on a multi threaded application and I would like
to create a pipe to communicate between them: the main thread will write
into the pipe some data and the working threads will read and execute. But
it seems that pipes don't exist in C# unless you create your own k,class.

I need to pass object reference between my threads so my first question
is: how do I get the reference (IntPtr) of a managed object ?

I had the idea to use a MemoryStream to write my IntPtr in because this
class is thread safe. Is it a good idea ? Did someone already tackled this
kind of problem ?

Thanks for any help !


Laurent

 

[Jon Skeet [C# MVP]]

I'm currently working on a multi threaded application and I would like
to create a pipe to communicate between them: the main thread will write
into the pipe some data and the working threads will read and execute. But
it seems that pipes don't exist in C# unless you create your own k,class.

I need to pass object reference between my threads so my first question
is: how do I get the reference (IntPtr) of a managed object ?

Why not just use a list of Object references? You don't need the IntPtr
at all.

 

[Laurent Navarro]

Hi Jon,

OK I see your point, but if I want to use a list of object, I will have
to manage the multiple thread calls by myself with mutex, won't I ?

Thanks for your answer anyway.

Laurent

 

[Ignacio Machin \( .NET/ C# MVP \)]

Hi,

You could use a synced queue, did you try it ?

I use this kind of structure for a multithreaded TCP/IP server

 

[Ben Voigt]

Hi Jon,

OK I see your point, but if I want to use a list of object, I will have
to manage the multiple thread calls by myself with mutex, won't I ?

Thanks for your answer anyway.

Take a look at System.Collections.Queue.Synchronized() method.

Laurent

 

[Jon Skeet [C# MVP]]

OK I see your point, but if I want to use a list of object, I will have
to manage the multiple thread calls by myself with mutex, won't I ?

If you've got shared data, you'll need to manage the threading anyway.
It's not too hard though - and just managing threading for a single
queue is very easy.

See http://www.pobox.com/~skeet/csharp/threads for more threading info.

 

[sergejusz]

Hi Laurent,
I've developed very simple in use class library to make multithreaded
application development easier. Threads in this library communicate
using messages. Message can contain 'everything' you want. If I
correctly understand your problem - it may help you.
You'll find source codes with examples in vb.net and c# here:
http://www.sergejusz.com/boss_workers.htm
Kind regards
Sergejus
http://www.sergejusz.com

 

[Laurent Navarro]

Hi Sergejusz,


I'll give a look at your custom class, thanks for the link !

Laurent