public void Unsubscribe(string inst, string exchange)
{
lock (_lockMd)
{
if (null != m_pMdApi && IntPtr.Zero != m_pMdApi)
{
MdApi.MD_Unsubscribe(m_pMdApi, inst, exchange);
}
}
}
//建立行情
private void Connect_MD()
{
lock (_lockMd)
{
if (null == m_pMdApi || IntPtr.Zero == m_pMdApi)
{
m_pMdApi = MdApi.MD_CreateMdApi();
MdApi.CTP_RegOnRtnDepthMarketData(m_pMsgQueue, _fnOnRtnDepthMarketData_Holder);
MdApi.MD_RegMsgQueue2MdApi(m_pMdApi, m_pMsgQueue);
MdApi.MD_Connect(m_pMdApi, szPath, szAddresses, szBrokerId, szInvestorId, szPassword);
}
}
}
private void Disconnect_MD()
{
lock (_lockMd)
{
if (null != m_pMdApi && IntPtr.Zero != m_pMdApi)
{
MdApi.MD_RegMsgQueue2MdApi(m_pMdApi, IntPtr.Zero);
MdApi.MD_ReleaseMdApi(m_pMdApi);
m_pMdApi = IntPtr.Zero;
}
_bMdConnected = false;
}
}