抛弃GdCpp*.dll/pdb历史重新建库。libhv和Sqlite的dll保留

include/CWinErr.h

@@ -0,0 +1,44 @@
+#ifndef CWINERR_H
+#define CWINERR_H
+
+#include "GdCPP_Exports.h"
+#include <stdint.h>
+#include <xstring>
+
+GDCPP_API wchar_t* getWinErrString(DWORD winErrCode);
+GDCPP_API DWORD getWinErrString(DWORD winErrCode, wchar_t* lpMsgBuf, DWORD   nSize);
+
+class GDCPP_API CWinErr
+{
+public:
+    CWinErr(uint32_t bufsize=1024)
+	    : bufSize(bufsize)
+    {
+        pMsg = new wchar_t[bufSize];
+    }
+
+    ~CWinErr()
+    {
+        delete [] pMsg;
+    }
+
+    /// 记录Windows API执行出错后用GetLastError()获取的错误码。
+    uint32_t errCode=0;
+
+    wchar_t* pMsg = nullptr;
+    uint32_t bufSize = 0;
+
+    DWORD GetLastError()
+    {
+        errCode = ::GetLastError();
+        return getWinErrString(errCode, pMsg, bufSize);
+    }
+
+    DWORD WSAGetLastError()
+    {
+        errCode = ::WSAGetLastError();
+        return getWinErrString(errCode, pMsg, bufSize);
+    }
+};
+
+#endif // CWINERR_H