UNIX Domain Socket是全双工的,API接口语义丰富,相比其它IPC机制有明显的优越性,目前已成为使用最广泛的IPC机制,比如X Window服务器和GUI程序之间就是通过UNIX Domain Socket通讯的。 使用UNIX Domain Socket的过程和网络socket十分相似,也要先调用socket()创建一个socket文件描述符,addres
/*设置socket描述符的选项*/ setsockopt(sockets[0],SOL_SOCKET,SO_SNDBUF,&bufferSize,sizeof(bufferSize)); setsockopt(sockets[0],SOL_SOCKET,SO_RCVBUF,&bufferSize,sizeof(bufferSize)); setsockopt(sockets[1],SOL_SOCKET,SO_SNDBUF,&bufferSize,sizeof(bufferSize)); setsockopt(sockets[1],SOL_SOCKET,S...
}/*设置socket描述符的选项*/setsockopt(sockets[0], SOL_SOCKET, SO_SNDBUF, &bufferSize,sizeof(bufferSize));setsockopt(sockets[0], SOL_SOCKET, SO_RCVBUF, &bufferSize,sizeof(bufferSize));setsockopt(sockets[1], SOL_SOCKET, SO_SNDBUF, &bufferSize,sizeof(bufferSize));setsockopt(sockets[1], SO...
("socket"); return 1; } memset(&addr, 0, sizeof(addr)); addr.sun_family = AF_UNIX; strncpy(addr.sun_path, SOCKET_PATH, sizeof(addr.sun_path) - 1); bind(sockfd, (struct sockaddr*)&addr, sizeof(addr)); accept(sockfd, NULL, NULL); recv(sockfd, buffer, sizeof(buffer)...
//create pmmanager socket fd pmmanager_fd=socket(AF_UNIX, SOCK_DGRAM,0); if(pmmanager_fd==-1) { perror("cannot create pmmanager fd."); } unlink(pmmanager); memset(&pmmanager_addr,0,sizeof(pmmanager_addr)); pmmanager_addr.sun_family=AF_UNIX; ...
h> #define BUFFER_SIZE 1024 const char *filename="uds-tmp"; int main() { struct sockaddr_un un; int sock_fd; char buffer[BUFFER_SIZE] = {1,2,3}; un.sun_family = AF_UNIX; strcpy(un.sun_path,filename); sock_fd = socket(AF_UNIX,SOCK_STREAM,0); if(sock_fd < 0){ printf...
sun_path,SOCKET_NAME,sizeof(SOCKET_NAME)); if(connect(fd,(struct sockaddr *)&cun,sizeof(cun)) < 0) { perror("connect"); exit(-1); } //数据收发及处理 char buf[BUFFER_SIZE]; int ret=-1; while(1) { bzero(buf,sizeof(buf)); fgets(buf,sizeof(buf)-1,stdin); if(send(fd,...
对于 Unix Domain Socket 来说,那就是 unix_stream_sendmsg。 我们来看一下这个函数 //file: static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock, struct msghdr *msg, size_t len) { // 1.申请一块缓存区 skb = sock_alloc_send_skb(sk, size, msg->msg_flags&MSG_DONTWAIT...
send(fd_socket,buffer,BUFFER_SIZE,0); } return 0; } 与tcp socket通信基本一致,多开一个线程负责阻塞接收,主线程负责发送,非常简单。 makefile别忘记了加-lpthread支持: PROG = main SRCS = main.cc lcd.cc camera.cc PROG_USS = uss SRCS_USS = uss.cc PROG_USC = usc SRCS_USC ...
We instantiate the socket like so: _socket = new System.Net.Sockets.Socket(AddressFamily.Unix, SocketType.Stream, ProtocolType.Unspecified) { SendBufferSize = Constants.EndpointManager.SocketBufferSize, ReceiveBufferSize = Constants.EndpointManager.SocketBufferSize }; However, one of our customers ...