{printf("alive s32SocketFd = %d \n",s32SocketFd);if(s32SocketFd>0) {structtcp_infoinfo;intlen =sizeof(info); getsockopt(s32SocketFd, IPPROTO_TCP, TCP_INFO, &info, (socklen_t*)&len);printf("info.tcpi_state = %d\n",info.tcpi_state);if(info.tcpi_state == TCP_ESTABLISHED) {p...
int len = sizeof(info); getsockopt(s32SocketFd, IPPROTO_TCP, TCP_INFO, &info, (socklen_t *)&len); printf("info.tcpi_state = %d\n",info.tcpi_state); if(info.tcpi_state == TCP_ESTABLISHED) { printf("connect ok \r\n"); //return 0; } else { printf("connect error\r\n")...
struct tcp_info info; int len=sizeof(info); getsockopt(sock, IPPROTO_TCP, TCP_INFO, &info, (socklen_t *)&len); if((info.tcpi_state==TCP_ESTABLISHED)) //则说明未断开 else //断开 若使用了select等系统函数,若远端断开,则select返回1,recv返回0则断开。其他注意事项同法一。 keepalive int...
return 0; struct tcp_info info; int len=sizeof(info); getsockopt(sock, IPPROTO_TCP, TCP_INFO, &info, (socklen_t *)&len); if((info.tcpi_state==TCP_ESTABLISHED)) { //myprintf("socket connected\n"); return 1; } else { //myprintf("socket disconnected\n"); return 0; } } 1. ...
structtcp_infoinfo;intlen=sizeof(info);getsockopt(client_fd,IPPROTO_TCP,TCP_INFO,&info,(socklen_t*)&len);if(info.tcpi_state==TCP_CLOSE_WAIT&&info.tcpi_state!=TCP_ESTABLISHED){printf("Client disconnection!\n");} TCP_CLOSE_WAIT:是服务器收到客户端发来的FIN包以后进入的状态,FIN包是客户端...
if((info.tcpi_state==TCP_ESTABLISHED)) { //myprintf("socket connected\n"); return 1; } else { //myprintf("socket disconnected\n"); return 0; } } tcp_info和TCP_ESTABLISHED在linux/tcp.h 包含 #include <linux/types.h> #include <asm/byteorder.h> ...
Kernel Kernel Data Types tcp_info tcp_info macOS 13.0+ struct tcp_info { ... }; Topics Instance Properties tcpi_cell_rxbytes tcpi_cell_rxpackets tcpi_cell_txbytes tcpi_cell_txpackets tcpi_client_accecn_state tcpi_connstatus tcpi_delivered_ce_bytes tcpi_delivered_ect0_bytes tcpi_...
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u8 *state = &info->tcpi_state; switch (lw->state) { case CLOSED: *state = TCP_CLOSE; break; case LISTEN: *state = TCP_LISTEN; info->tcpi_unacked = ((struct tcp_pcb_listen *)lw)->accepts_pending; info->tcpi_sacked = ((struct tcp_pcb_listen *)lw)->backlog; tcp_unlock(lw...