表1 套接字选项列表 表中SOL_PACKET 选项等级用于 AF_PACKET 类型套接字的选项,这些选项将在下一篇文章中 详细介绍:
setsockopt, TCP_NODELAY and Packet Aggregation I一般情况下,系统瓶颈由延时决定,而不是吞吐量。然而 TCP 套接字默认开启了所谓的"nagle算法",会延缓发包时间,以便和后面(需要发送)的网络包合并在一起发送。这个算法主要用于减少网络包的数量,从而减少TCP报文头的吞吐量开销。 锁和阻塞操作历来都是后台编程的忌讳,...
int err,sock_reuse=1; err=setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,(char *)&sock_reuse,sizeof(sock_reuse)); if(err!=0){ printf("套接字可重用设置失败!/n"); exit(1); } my_addr.sin_family=AF_INET; my_addr.sin_port=htons(SERVPORT); my_addr.sin_addr.s_addr=INADDR_ANY; bzer...
int rc; int s; int option_value; struct linger l; int setsockopt(int s, int level, int option_name, char *option_value, int option_len); ⋮ /* I want out of band data in the normal input queue */ option_value = 1; rc = setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *) ...
_, err := C.setsockopt(h.fd, C.SOL_PACKET, C.PACKET_VERSION, unsafe.Pointer(&val), C.socklen_t(unsafe.Sizeof(val)))iferr !=nil{returnfmt.Errorf("setsockoptpacket_version: %v", err) }returnnil} 开发者ID:ldnvnbl,项目名称:gopacket,代码行数:9,代码来源:afpacket.go ...
DWORD optval = SO_SEC_SSL; err = setsockopt( Socket, SOL_SOCKET, SO_SECURE, &optval, sizeof(optval) );. For Infrared Sockets (IrSock), Af_irda.h must be explicitly included. IrSock provides two settable socket options: ValueTypeDescription ...
BOOL SetSockOpt( int nOptionName, const void* lpOptionValue, int nOptionLen, int nLevel = SOL_SOCKET ); Parameters nOptionName The socket option for which the value is to be set. lpOptionValue A pointer to the buffer in which the value for the requested option is supplied. ...
The following SOL_SOCKET options are not supported by AF_INET sockets over SNA. setsockopt() appears to succeed, but has no effect on the function of AF_INET sockets over SNA. SO_BROADCAST SO_DONTROUTE SO_KEEPALIVE SO_LINGER When you develop in C-based languages and an application is co...
(ListenSocket, SOL_SOCKET, SO_KEEPALIVE, (char *) &bOptVal, bOptLen); if (iResult == SOCKET_ERROR) { wprintf(L"setsockopt for SO_KEEPALIVE failed with error: %u\n", WSAGetLastError()); } else wprintf(L"Set SO_KEEPALIVE: ON\n"); iResult = getsockopt(ListenSocket, SOL_SOCKET, ...
level= SOL_SOCKET ValueTypeDescription SO_BROADCASTBOOLAllows transmission of broadcast messages on the socket. SO_DONTLINGERBOOLDoes not block close waiting for unsent data to be sent. Setting this option is equivalent to setting SO_LINGER with l_onoff set to zero. ...