//获取某个市场或者全部市场的代码表。strMarket取值: "SH"、"SZ"、"CF"、"SHF"、"CZC"、"DCE"，全部市场：""
public TDBErrNo GetCodeTable(string strMarket, out TDBCode[] codeArr)
{
TDBErrNo nVerifyRet = SimpleVerifyReqInput(strMarket);
codeArr = new TDBCode[0];
if (nVerifyRet != TDBErrNo.TDB_SUCCESS)
{
return(nVerifyRet);
}
int nArrLen = 128;
byte[] btMarketArr = LibWrapHelper.String2AnsiArr(strMarket, nArrLen);
IntPtr pUnmanagedMarket = Marshal.AllocHGlobal(btMarketArr.Length);
Marshal.Copy(btMarketArr, 0, pUnmanagedMarket, nArrLen);
IntPtr ppCodeTable = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IntPtr)));
IntPtr pCount = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Int32)));
int nRet = LibTDBWrap.TDB_GetCodeTable(m_hTdb, pUnmanagedMarket, ppCodeTable, pCount);
IntPtr pCodeTable = (IntPtr)Marshal.PtrToStructure(ppCodeTable, typeof(IntPtr));
int nCount = (Int32)Marshal.PtrToStructure(pCount, typeof(Int32));
if (nRet == 0 && (UInt64)pCodeTable != 0 && nCount > 0)
{
codeArr = new TDBCode[nCount];
int nElemLen = Marshal.SizeOf(typeof(LibTDBWrap.TDBDefine_Code));
for (int i = 0; i < nCount; i++)
{
LibTDBWrap.TDBDefine_Code apiCode = (LibTDBWrap.TDBDefine_Code)Marshal.PtrToStructure((IntPtr)((UInt64)pCodeTable + (UInt64)(nElemLen * i)), typeof(LibTDBWrap.TDBDefine_Code));
codeArr[i] = new TDBCode();
codeArr[i].FromAPICode(ref apiCode);
}
}
else
{
//如果网络连接断掉，则关闭连接
if (nRet == (int)TDBErrNo.TDB_NETWORK_ERROR)
{
DisConnect();
}
}
if ((UInt16)pCodeTable != 0)
{
LibTDBWrap.TDB_Free(pCodeTable);
}
Marshal.FreeHGlobal(pUnmanagedMarket);
Marshal.FreeHGlobal(ppCodeTable);
Marshal.FreeHGlobal(pCount);
return((TDBErrNo)nRet);
}
//如果查询的代码不存在，连接已经断掉、未连接，则返回null
public TDBCode GetCodeInfo(string strWindCode, string strMarketKey)
{
TDBErrNo nVerifyRet = SimpleVerifyReqInput(strWindCode);
if (nVerifyRet != TDBErrNo.TDB_SUCCESS)
{
return(null);
}
int nMaxWindCodeLen = 64;
int nMaxmarketLen = 48;
IntPtr pszWindCode = Marshal.AllocHGlobal(nMaxWindCodeLen);
byte[] btWindCode = LibWrapHelper.String2AnsiArr(strWindCode, nMaxWindCodeLen);
btWindCode[btWindCode.Length - 1] = 0;
Marshal.Copy(btWindCode, 0, pszWindCode, btWindCode.Length);
IntPtr pszMarket = Marshal.AllocHGlobal(nMaxmarketLen);
byte[] btMarket = LibWrapHelper.String2AnsiArr(strMarketKey, nMaxmarketLen);
btMarket[btMarket.Length - 1] = 0;
Marshal.Copy(btMarket, 0, pszMarket, btMarket.Length);
IntPtr pCode = LibTDBWrap.TDB_GetCodeInfo(m_hTdb, pszWindCode, pszMarket);
Marshal.FreeHGlobal(pszWindCode);
Marshal.FreeHGlobal(pszMarket);
if ((UInt64)pCode != 0)
{
LibTDBWrap.TDBDefine_Code apiCode = (LibTDBWrap.TDBDefine_Code)Marshal.PtrToStructure(pCode, typeof(LibTDBWrap.TDBDefine_Code));
TDBCode tdbCode = new TDBCode();
tdbCode.FromAPICode(ref apiCode);
return(tdbCode);
}
else
{
return(null);
}
}