CS计算机代考程序代写 //**************************************************************************************************************************************************

//**************************************************************************************************************************************************

#include
#include
#include
#include
#include
#include
#include

#define MSGSIZE 63

char *fifo = “fifo”;

int main(int argc, char **argv){
int fd;
char msgbuf[MSGSIZE + 1];

if (mkfifo(fifo, 0666) == -1 ){
if (errno != EEXIST) {
perror(“receiver: mkfifo”);
exit(4);
}
}

if ((fd = open(fifo, O_RDWR)) < 0) { //note O_RDWD, change it to O_RDONLY? perror("fifo open failed"); exit(5); } for (;;){ int num=read(fd, msgbuf, MSGSIZE + 1); if (num < 0) { perror("message read failed"); exit(6); } //including the following when O_RDONLY /* if (num == 0) { printf("nothing to read or no write end.\n"); continue; } */ printf("message received:%s\n", msgbuf); } }