linux 创建fifo

mkfifo my_fifo

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

int main() {
    if (mknod("my_fifo", S_IFIFO | 0666, 0) == -1) {
        perror("mknod");
        return 1;
    }
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>

#define FIFO_NAME "my_fifo"

int main() {
    int fd = open(FIFO_NAME, O_WRONLY);
    if (fd == -1) {
        perror("open");
        exit(1);
    }

    const char *message = "Hello, FIFO!";
    write(fd, message, strlen(message) + 1);
    close(fd);
    return 0;
}

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>

#define FIFO_NAME "my_fifo"

int main() {
    int fd = open(FIFO_NAME, O_RDONLY);
    if (fd == -1) {
        perror("open");
        exit(1);
    }

    char buffer[256];
    read(fd, buffer, sizeof(buffer));
    printf("Received: %s
", buffer);
    close(fd);
    return 0;
}