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I'm working on a project which includes several (read: about 30) C++ processes and a couple of Java processes. At some point, more then one of these C++ processes are going to need to read data from an instance of a java process. I am accomplishing this by created a shared memory segment and putting an instance of the JNI communication object in it. This *seams* to be working just fine... the only thing that worries me is if something in that object in shared memory has dynamic size and causes the object to grow bigger then the shared segment size.
Has anyone ever shared a dynamic (or possibly dynamic... I don't have any control over what this object does) in a shared memory segment before? If so... how do you go about doing it to ensure the program doesn't have suffer from particularly nasty behavior.
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