如何在没有NMI的情况下通过内存映射文件在C ++和JAVA之间进行通信？

Question

I have a C++ COMPILED code which takes two arguments: input file & output file. It's also not possible to pipe input and output. I want to call this program from a Java application. The only performance-improvement option which comes to mind, is to use memory-mapped files. The task is simple:

1. create two file (names)
2. call C++ compiled program and provide the file names (code manipulation is not possible, the code is too complicated)
3. read output file

How can I do it in Java?

Answer 1

You can achieve that by:

try {
  //Start the c++ program
  Process p = Runtime.getRuntime().exec("MyCppProgram.exe "+"intputFile "+"outputFile");
  // wait until the program finishes
  p.waitFor();
  // Done, process output file
}
catch (Exception e) {
  e.printStackTrace();
}