292 lines
8.8 KiB
C#
292 lines
8.8 KiB
C#
using System;
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using System.Runtime.InteropServices;
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namespace UdtSharp
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{
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public class UdtException : Exception
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{
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int m_iMajor;
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int m_iMinor;
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int m_iErrno;
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public UdtException(int major = 0, int minor = 0, int err = -1)
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{
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m_iMajor = major;
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m_iMinor = minor;
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if (-1 == err)
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{
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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m_iErrno = Marshal.GetLastWin32Error();
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// TODO handle non-windows error
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}
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else
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m_iErrno = err;
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}
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public string getErrorMessage()
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{
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// translate "Major:Minor" code into text message.
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string strMsg = string.Empty;
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switch (m_iMajor)
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{
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case 0:
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strMsg = "Success";
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break;
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case 1:
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strMsg = "Connection setup failure";
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switch (m_iMinor)
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{
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case 1:
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strMsg += ": connection time out";
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break;
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case 2:
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strMsg += ": connection rejected";
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break;
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case 3:
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strMsg += ": unable to create/configure UDP socket";
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break;
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case 4:
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strMsg += ": abort for security reasons";
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break;
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default:
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break;
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}
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break;
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case 2:
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switch (m_iMinor)
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{
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case 1:
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strMsg = "Connection was broken";
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break;
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case 2:
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strMsg = "Connection does not exist";
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break;
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default:
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break;
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}
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break;
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case 3:
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strMsg = "System resource failure";
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switch (m_iMinor)
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{
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case 1:
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strMsg += ": unable to create new threads";
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break;
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case 2:
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strMsg += ": unable to allocate buffers";
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break;
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default:
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break;
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}
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break;
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case 4:
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strMsg = "File system failure";
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switch (m_iMinor)
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{
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case 1:
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strMsg += ": cannot seek read position";
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break;
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case 2:
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strMsg += ": failure in read";
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break;
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case 3:
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strMsg += ": cannot seek write position";
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break;
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case 4:
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strMsg += ": failure in write";
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break;
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default:
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break;
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}
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break;
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case 5:
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strMsg = "Operation not supported";
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switch (m_iMinor)
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{
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case 1:
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strMsg += ": Cannot do this operation on a BOUND socket";
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break;
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case 2:
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strMsg += ": Cannot do this operation on a CONNECTED socket";
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break;
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case 3:
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strMsg += ": Bad parameters";
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break;
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case 4:
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strMsg += ": Invalid socket ID";
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break;
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case 5:
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strMsg += ": Cannot do this operation on an UNBOUND socket";
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break;
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case 6:
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strMsg += ": Socket is not in listening state";
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break;
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case 7:
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strMsg += ": Listen/accept is not supported in rendezous connection setup";
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break;
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case 8:
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strMsg += ": Cannot call connect on UNBOUND socket in rendezvous connection setup";
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break;
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case 9:
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strMsg += ": This operation is not supported in SOCK_STREAM mode";
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break;
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case 10:
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strMsg += ": This operation is not supported in SOCK_DGRAM mode";
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break;
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case 11:
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strMsg += ": Another socket is already listening on the same port";
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break;
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case 12:
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strMsg += ": Message is too large to send (it must be less than the UDT send buffer size)";
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break;
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case 13:
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strMsg += ": Invalid epoll ID";
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break;
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default:
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break;
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}
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break;
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case 6:
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strMsg = "Non-blocking call failure";
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switch (m_iMinor)
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{
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case 1:
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strMsg += ": no buffer available for sending";
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break;
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case 2:
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strMsg += ": no data available for reading";
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break;
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default:
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break;
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}
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break;
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case 7:
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strMsg = "The peer side has signalled an error";
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break;
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default:
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strMsg = "Unknown error";
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break;
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}
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// // Adding "errno" information
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// if ((0 != m_iMajor) && (0 < m_iErrno))
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// {
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// strMsg += ": ";
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//# ifndef WIN32
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// char errmsg[1024];
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// if (strerror_r(m_iErrno, errmsg, 1024) == 0)
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// strMsg += errmsg;
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//#else
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// LPVOID lpMsgBuf;
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// FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, m_iErrno, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPTSTR) & lpMsgBuf, 0, NULL);
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// strMsg += (char*)lpMsgBuf;
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// LocalFree(lpMsgBuf);
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//#endif
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// }
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return strMsg;
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}
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public int getErrorCode()
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{
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return m_iMajor * 1000 + m_iMinor;
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}
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void clear()
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{
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m_iMajor = 0;
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m_iMinor = 0;
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m_iErrno = 0;
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}
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const int SUCCESS = 0;
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const int ECONNSETUP = 1000;
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const int ENOSERVER = 1001;
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const int ECONNREJ = 1002;
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const int ESOCKFAIL = 1003;
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const int ESECFAIL = 1004;
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const int ECONNFAIL = 2000;
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const int ECONNLOST = 2001;
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const int ENOCONN = 2002;
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const int ERESOURCE = 3000;
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const int ETHREAD = 3001;
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const int ENOBUF = 3002;
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const int EFILE = 4000;
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const int EINVRDOFF = 4001;
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const int ERDPERM = 4002;
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const int EINVWROFF = 4003;
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const int EWRPERM = 4004;
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const int EINVOP = 5000;
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const int EBOUNDSOCK = 5001;
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const int ECONNSOCK = 5002;
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const int EINVPARAM = 5003;
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const int EINVSOCK = 5004;
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const int EUNBOUNDSOCK = 5005;
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const int ENOLISTEN = 5006;
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const int ERDVNOSERV = 5007;
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const int ERDVUNBOUND = 5008;
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const int ESTREAMILL = 5009;
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const int EDGRAMILL = 5010;
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const int EDUPLISTEN = 5011;
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const int ELARGEMSG = 5012;
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const int EINVPOLLID = 5013;
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const int EASYNCFAIL = 6000;
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const int EASYNCSND = 6001;
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const int EASYNCRCV = 6002;
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const int ETIMEOUT = 6003;
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const int EPEERERR = 7000;
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const int EUNKNOWN = -1;
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}
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}
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