Creating interrupt handler to remove pipe

[bjohnson]

Hello,

I'm using a client server example which can be found at:
http://codingfreak.blogspot.com/2008/09/client-server-example-with-pipes.html

I was hoping if someone could help me understand how to make it so that the pipe PUBLIC is automatically removed when the server gets killed through Ctrl-C. I believe this involves using an interrupt handler but not sure how to do this.

The client is described first (in the article) followed by the server. When ready to launch, I first start the server in the background by using ./server & followed by running the client. The CMD prompt allows the user to type anything and it goes through the server. As of now, when Ctrl-C is used it kills the client but the server is still running with the PUBLIC pipe. Any help would be greatly appreciated.

Thanks,
Bill

[suokko]

http://en.wikipedia.org/wiki/Signal_(computing)

You have to register signal handler function using POSIX api.

Another possibility is to use RAII

class pipe {
char* filename;
public:
pipe(const char* filename) : filename(filename)
{
// create pipe here
}
~pipe()
{
// call file remove function for this->filename;
}
};
int main(void)
{
pipe public_pipe("/path/to/PUBLIC");

return run_program();
}

Now when program exists public_pipe variable is destroyed and destructor handles removal of the pipe. Of course that pipe class is far from functional and you need to add a way for your program to have access to that pipe.