Snippet: Pipe data from node.js to C

Create a FIFO pipe in C for reading

// Copyright Robert Eisele 2017

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <unistd.h>

    int main() {
    
    char *fifo = "/tmp/fifoPipe";
    
    mkfifo(fifo, 0666);
    
    int fd = open(fifo, O_RDONLY);
    
    while (1) {
        double d;
        int x = read(fd, &d, sizeof(double));
        printf("%f\n", d);
    }
    close(fd);
    return 0;
}

Now connect to the pipe using node.js and write data to it:

// Copyright Robert Eisele 2017

var fs = require("fs");

fs.open("/tmp/fifoPipe", "w", function(fd){
    console.log("open", fd);

    while(1) {
        fs.write(fd, Buffer.from([1,2,3,4]), function() {
            console.log("done");
        });
    }
});