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Reading files using C++

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  • 12-01-2005 7:48pm
    #1
    Glenman
    Registered Users Posts: 976 ✭✭✭


    Hi all,
    For my project, I need to send robot direction instructions from a mobile phone firslty to the server computer and then onto a robot via a radio packet controller link.
    Currently, I've made the GPRS connection with the server computer and I am writing the Robot direction Instructions, A for Forward, B for Right etc into a file on the C drive using java.
    Does anyone have any ideas how I can instantly read this file using a C++ program to send them to the robot via an RPC interfaced to the computer via the NI-DAQ card. I need to use C++ as it controls the NI-DAQ card.
    Can I write to a file using java and at the same time keep reading the file using C++. I presume I'd need to delete the contents of the file after each robot direction instruction is sent.
    Can anyone please offer any advice on this or maybe suggest a better way of overcoming the situtation
    Thanks and Regards
    Glenman


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    #2
    Red Alert
    Hosted Moderators Posts: 7,486 ✭✭✭Red Alert


    I think what you may be looking for is called a Pipe, as it 'pipes' the output from one program into another. It's like a file that never makes it onto a disk. Very easy to do in unix, AFAIK windows is also easy enough. Check a I/O pipes in a textbook.


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