shi-yan

void setTcpKeepalive(SOCKET &sockfd)
{
    const uint32_t keepaliveIntervalSec = 10;

#ifdef _WIN32
    tcp_keepalive keepaliveParams;
    DWORD ret = 0;
    keepaliveParams.onoff = 1;
    keepaliveParams.keepaliveinterval = keepaliveParams.keepalivetime = keepaliveIntervalSec * 1000;
    WSAIoctl(sockfd, SIO_KEEPALIVE_VALS, &keepaliveParams, sizeof(keepaliveParams), NULL, 0, &ret, NULL, NULL);