管道的例子
#include <stdio.h>#include <unistd.h>#include <stdlib.h>#include <string.h>int pipe_test[2]; int main(){ pid_t pid; char buffer[32]; memset(buffer, 0, 32); if(pipe(pipe_test) < 0) { printf("Failed to create pipe!\n"); return 0; } if(0 == (pid = fork())) { close(pipe_test[1]); sleep(3); if(read(pipe_test[0], buffer, 32) > 0) { printf("Receive data from server, %s!\n", buffer); } close(pipe_test[0]); } else { close(pipe_test[0]); if(-1 != write(pipe_test[1], "hello", strlen("hello"))) { printf("Send data to client, hello!\n"); } close(pipe_test[1]); waitpid(pid, NULL, 0); } return 1;}