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recv & send
2022-06-25 23:57:00 【Chen_Hulk】
socket通信中,客户端服务器可以使用recv & send进行数据收发。
#include <sys/socket.h>
ssize_t recv(int sockfd, void *buff, size_t nbytes, int flags); //buff存放接收数据
ssize_t send(int sockfd, const void *buff, size_t nbytes, int flags); //buff存放待发送数据flags参数值为0或:
| flags | 说明 | recv | send |
|---|---|---|---|
| MSG_DONTROUTE | 绕过路由表查找 | √ | |
| MSG_DONTWAIT | 仅本操作非阻塞 | √ | √ |
| MSG_OOB | 发送或接收带外数据 | √ | √ |
| MSG_PEEK | 窥看外来消息 | √ | |
| MSG_WAITALL | 等待所有数据 | √ |
send执行流程:

recv执行流程:

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