Unix and Pipes

[trilobyte]

Having a little issue with pipes


Pipes need their own file descriptor array right? IE:

int fd[2];
pipe(fd);


...if I wanted 2 pipes....
int fd0[2], fd1[2];
pipe(fd0);
pipe(fd1);



...now my question. If I wanted to make 100 pipes, is there a way to write a loop that will create 100 different file-descritor arrays and 100 different pipes (in C)? A program I'm writing requires multiple pipes (one per process) to be all linked together, and the pipes must be created before the fork. Hence, my question.

 

[Barnaby W. Füi]

I haven't touched C in a long time and when I did I sucked, so this is just a crapshot

int pipes[100];
int n;

for(n=0; n<100; n++) {
int pipes[n][2];
pipe(pipes[n]);
}

I'm probably way off though

 

[trilobyte]

Yeah, but how can I use that double array when closing the file descriptors?

like:

close(pipes[1][0]);

gives me a "cannot dereference non-pointer type" when I try to compile.