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JNI to C++ socket app.

Posted on 2006-11-03
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Last Modified: 2012-06-21

Hi exprts,

I need to create a Java program that connect to a server via socket. The server is written in C++, and I have an API.lib and a header file to work with. The API.lib provides me a function void connect () to establish a socket connection. It is easy to build a C++ client using that function.
My question is: Can I create a Java client that connect dicrectly to C++ server using that function? (vua JNI)

Does the socket connection is made if I using JNI call the C++ function connect ()? (I will have a native C++ function wrap around that function, off course)

Thanks in advance
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Question by:phongtran72
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Expert Comment

by:hoomanv
ID: 17867608
JNI needs a special paradigm to follow in order to call C functions from withing Java application
You should wrap all required functions according to the JNI style to create an acceptable dll for Java
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Author Comment

by:phongtran72
ID: 17867675
to hoomanv
>>" wrap all required functions"

I only have one function "void connect()" from API.lib. This function would make a socket connection.

If I wrap this function with JNI style C++ function, a socket connection would be established?

Thanks for answering
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LVL 14

Expert Comment

by:hoomanv
ID: 17867709
Yes, why are you thinking negative ?
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Author Comment

by:phongtran72
ID: 17870539


why are you thinking negative

Because I cannot make a connection this way.
I am wondering if someone else can do it.

Thanks
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Accepted Solution

by:
hoomanv earned 2000 total points
ID: 17872891
If you can do it with C++, You can with JNI
Perhaps you are not doing it the right way
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Author Comment

by:phongtran72
ID: 17875152
Thanks. I'll write a small program to investigate this issue.
I'll let you know the result.
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