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https://github.com/riba2534/TCP-IP-NetworkNote.git
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25 lines
585 B
C
25 lines
585 B
C
#include <stdio.h>
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#include <unistd.h>
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#define BUF_SIZE 30
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int main(int argc, char *argv[])
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{
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int fds[2];
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char str[] = "Who are you?";
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char buf[BUF_SIZE];
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pid_t pid;
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// 调用 pipe 函数创建管道，fds 数组中保存用于 I/O 的文件描述符
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pipe(fds);
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pid = fork(); //子进程将同时拥有创建管道获取的2个文件描述符，复制的并非管道，而是文件描述符
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if (pid == 0)
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{
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write(fds[1], str, sizeof(str));
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}
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else
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{
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read(fds[0], buf, BUF_SIZE);
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puts(buf);
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}
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return 0;
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}
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