stm32 tcpserver端 keepalive
时间: 2023-07-30 20:04:04 浏览: 217
CUBE配置STM32H750+Lan8720+FreeRTOS+lwip+掉线重连+KeepAlive移植工程文件
在STM32上实现TCP服务器的Keepalive功能,你可以按照以下步骤进行操作:
1. 配置套接字选项:使用`setsockopt`函数配置套接字选项。你可以通过设置`SO_KEEPALIVE`选项为1来启用Keepalive功能。例如:
```c
int enableKeepalive = 1;
setsockopt(socket_fd, SOL_SOCKET, SO_KEEPALIVE, &enableKeepalive, sizeof(enableKeepalive));
```
2. 配置Keepalive参数:使用`setsockopt`函数配置Keepalive参数。你可以设置Keepalive的间隔时间、未收到响应的重试次数等参数。例如:
```c
int keepaliveInterval = 10; // 间隔时间为10秒
int keepaliveRetryCount = 3; // 重试次数为3次
setsockopt(socket_fd, IPPROTO_TCP, TCP_KEEPIDLE, &keepaliveInterval, sizeof(keepaliveInterval));
setsockopt(socket_fd, IPPROTO_TCP, TCP_KEEPCNT, &keepaliveRetryCount, sizeof(keepaliveRetryCount));
```
3. 开启Keepalive功能:使用`ioctl`函数开启Keepalive功能。例如:
```c
int keepaliveOn = 1;
ioctl(socket_fd, FIONBIO, &keepaliveOn);
```
这样就在STM32上成功启用了TCP服务器的Keepalive功能。请注意,这些代码只是示例,你需要根据实际需求进行修改和适配。
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