ipc fifo

PHOTO EMBED

Fri Jun 07 2024 04:56:58 GMT+0000 (Coordinated Universal Time)

Saved by @prabhas 

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

#define FIFO_NAME "myfifo"

int main() {
    int fd;
    char *message = "Hello from writer process!";
    
    // Create the FIFO if it does not exist
    if (mkfifo(FIFO_NAME, 0666) == -1) {
        perror("mkfifo");
        exit(EXIT_FAILURE);
    }

    // Open the FIFO for writing
    fd = open(FIFO_NAME, O_WRONLY);
    if (fd == -1) {
        perror("open");
        exit(EXIT_FAILURE);
    }

    // Write the message to the FIFO
    if (write(fd, message, strlen(message) + 1) == -1) {
        perror("write");
        close(fd);
        exit(EXIT_FAILURE);
    }

    printf("Writer: Wrote message to FIFO.\n");
    
    // Close the FIFO
    close(fd);

    return 0;
}
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