读取udp收发缓冲区的大小
时间: 2023-05-30 10:03:05 浏览: 669
UDP收发缓冲区的大小可以通过操作系统提供的相关函数来获取。在Linux系统中,可以使用getsockopt函数来获取UDP套接字的缓冲区大小。具体的代码实现如下:
```
int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
int recv_buf_size, send_buf_size;
socklen_t len;
// 获取接收缓冲区大小
len = sizeof(recv_buf_size);
getsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, &recv_buf_size, &len);
// 获取发送缓冲区大小
len = sizeof(send_buf_size);
getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, &send_buf_size, &len);
printf("Receive buffer size: %d\n", recv_buf_size);
printf("Send buffer size: %d\n", send_buf_size);
```
在Windows系统中,可以使用getsockopt函数获取UDP套接字的缓冲区大小。具体代码实现如下:
```
SOCKET sockfd = socket(AF_INET, SOCK_DGRAM, 0);
int recv_buf_size, send_buf_size;
int len;
// 获取接收缓冲区大小
len = sizeof(recv_buf_size);
getsockopt(sockfd, SOL_SOCKET, SO_RCVBUF, (char*)&recv_buf_size, &len);
// 获取发送缓冲区大小
len = sizeof(send_buf_size);
getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, (char*)&send_buf_size, &len);
printf("Receive buffer size: %d\n", recv_buf_size);
printf("Send buffer size: %d\n", send_buf_size);
```
阅读全文