if (setsockopt(sockfd, SOL_TCP, TCP_KEEPIDLE, (void *) &keepidle, sizeof (keepidle) < 0) { perror(“fail to set SO_KEEPIDLE”); exit(-1); } if (setsockopt(sockfd, SOL_TCP, TCP_KEEPINTVL, (void *)&keepintvl, sizeof (keepintvl) < 0) { perror(“fail to set SO_KEEPINTVL”)...
建立连接 发送和接收数据 代码示例 importsocket# 创建 TCP Socketclient_socket=socket.socket(socket.AF_INET,socket.SOCK_STREAM)# 设置 TCP Keepaliveclient_socket.setsockopt(socket.SOL_SOCKET,socket.SO_KEEPALIVE,1)client_socket.setsockopt(socket.IPPROTO_TCP,socket.TCP_KEEPIDLE,60)client_socket.setsockopt(...
Setsockopt(listenfd, SOL_TCP, TCP_KEEPIDLE, (void *)&keepIdle, sizeof(keepIdle)); Setsockopt(listenfd, SOL_TCP,TCP_KEEPINTVL, (void *)&keepInterval, sizeof(keepInterval)); Setsockopt(listenfd,SOL_TCP, TCP_KEEPCNT, (void *)&keepCount, sizeof(keepCount)); 详见:http://blog.csdn.net/...
clilen;charbuffer[BUF_SIZE];structsockaddr_inserv_addr,cli_addr;intn;intflags=1;if(argc<2){perror("ERROR: no port\n");exit(0);}sfd=socket(AF_INET,SOCK_STREAM,0);if(sfd<0){perror("ERROR: socket()");exit(0);}flags=10;if(setsockopt(sfd,SOL_TCP,TCP_KEEPIDLE,(void*)&flags,size...
int keepIdle = 5; //首次探测开始前的tcp无数据收发空闲时间 int keepInterval = 3; //每次探测的间隔时间 int keepCount = 2; //探测次数 if(setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,(void*)&keepAlive,sizeof(keepAlive)) == SOCKET_ERROR) ...
printf("ESP8266 TCP client task > connect fail!\n");continue; } printf("ESP8266 TCP client task > connect ok!\n"); //如该连接在60秒没有任何数据往来,则进行探测 keepidle = 60 setsockopt(sta_socket, IPPROTO_TCP, TCP_KEEPIDLE, (void*)&keepidle ,sizeof(keepidle)); ...
setsockopt(rs, SOL_TCP, TCP_KEEPIDLE, (void*)&keepidle , sizeof(keepidle )); setsockopt(rs, SOL_TCP, TCP_KEEPINTVL, (void *)&keepinterval , sizeof(keepinterval )); setsockopt(rs, SOL_TCP, TCP_KEEPCNT, (void *)&keepcount , sizeof(keepcount )); ...
TCP_QUICKACK:用于快速确认接收到的数据包的选项。启用此选项后,操作系统会立即发送一个确认报文,而不是等待一段时间后再发送。 TCP_KEEPIDLE:用于设置探测报文的发送间隔时间的选项。 TCP_KEEPINTVL:用于设置探测报文发送的间隔时间的选项。 TCP_KEEPCNT:用于设置在没有响应的情况下重新发送探测报文的次数的选项。
keepCount = 3;Setsockopt(listenfd, SOL_TCP, TCP_KEEPIDLE, (void *)&keepIdle, sizeof(keepIdle));Setsockopt(listenfd, SOL_TCP,TCP_KEEPINTVL, (void *)&keepInterval, sizeof(keepInterval));Setsockopt(listenfd,SOL_TCP, TCP_KEEPCNT, (void *)&keepCount, sizeof(keepCount));...
在Windows上,如果运行时Windows支持TCP_KEEPIDLE,则TCP_KEEPINTVL出现。 socket.AF_CAN socket.PF_CAN SOL_CAN_* CAN_* 套接字模块中还定义了Linux文档中记录的这些形式的许多常量。 可用性:Linux> = 2.6.25。 3.3 新版功能. socket.CAN_BCM CAN_BCM_* ...