InternalResources.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Sys / System / IO / Ports / InternalResources.cs / 1 / InternalResources.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 
/*============================================================
** 
** Class:  InternalResources 
**
** Date:  August 2002 
**
===========================================================*/

using System.IO; 
using System.Security;
using System.Resources; 
using System.Globalization; 
using System.Collections;
using System.Security.Permissions; 
using System.Text;
using System.Configuration.Assemblies;
using System.Runtime.InteropServices;
using System.Reflection; 
using System.Diagnostics;
using Microsoft.Win32; 
using System.Runtime.CompilerServices; 

namespace System.IO.Ports 
{
    internal static class InternalResources
    {
        // Beginning of static Error methods 
        internal static void EndOfFile()
        { 
            throw new EndOfStreamException(SR.GetString(SR.IO_EOF_ReadBeyondEOF)); 
        }
 
        internal static String GetMessage(int errorCode)
        {
            StringBuilder sb = new StringBuilder(512);
            int result = SafeNativeMethods.FormatMessage(NativeMethods.FORMAT_MESSAGE_IGNORE_INSERTS | 
                NativeMethods.FORMAT_MESSAGE_FROM_SYSTEM | NativeMethods.FORMAT_MESSAGE_ARGUMENT_ARRAY,
                new HandleRef(null, IntPtr.Zero), errorCode, 0, sb, sb.Capacity, IntPtr.Zero); 
            if (result != 0) 
            {
                // result is the # of characters copied to the StringBuilder on NT, 
                // but on Win9x, it appears to be the number of MBCS bytes.
                // Just give up and return the String as-is...
                String s = sb.ToString();
                return s; 
            }
            else 
            { 
                return SR.GetString(SR.IO_UnknownError, errorCode);
            } 
        }

        internal static void FileNotOpen()
        { 
            throw new ObjectDisposedException(null, SR.GetString(SR.Port_not_open));
        } 
 
        internal static void WrongAsyncResult()
        { 
            throw new ArgumentException(SR.GetString(SR.Arg_WrongAsyncResult));
        }

        internal static void EndReadCalledTwice() 
        {
            // Should ideally be InvalidOperationExc but we can't maintain parity with Stream and SerialStream without some work 
            throw new ArgumentException(SR.GetString(SR.InvalidOperation_EndReadCalledMultiple)); 
        }
 
        internal static void EndWriteCalledTwice()
        {
            // Should ideally be InvalidOperationExc but we can't maintain parity with Stream and SerialStream without some work
            throw new ArgumentException(SR.GetString(SR.InvalidOperation_EndWriteCalledMultiple)); 
        }
 
        internal static void WinIOError() 
        {
            int errorCode = Marshal.GetLastWin32Error(); 
            WinIOError(errorCode, String.Empty);
        }

        internal static void WinIOError(string str) 
        {
            int errorCode = Marshal.GetLastWin32Error(); 
            WinIOError(errorCode, str); 
        }
 
        // After calling GetLastWin32Error(), it clears the last error field,
        // so you must save the HResult and pass it to this method.  This method
        // will determine the appropriate exception to throw dependent on your
        // error, and depending on the error, insert a string into the message 
        // gotten from the ResourceManager.
        internal static void WinIOError(int errorCode, String str) 
        { 
            switch (errorCode)
            { 
                case NativeMethods.ERROR_FILE_NOT_FOUND:
                case NativeMethods.ERROR_PATH_NOT_FOUND:
                    if (str.Length == 0)
                        throw new IOException(SR.GetString(SR.IO_PortNotFound)); 
                    else
                        throw new IOException(SR.GetString(SR.IO_PortNotFoundFileName, str)); 
 
                case NativeMethods.ERROR_ACCESS_DENIED:
                    if (str.Length == 0) 
                        throw new UnauthorizedAccessException(SR.GetString(SR.UnauthorizedAccess_IODenied_NoPathName));
                    else
                        throw new UnauthorizedAccessException(SR.GetString(SR.UnauthorizedAccess_IODenied_Path, str));
 
                case NativeMethods.ERROR_FILENAME_EXCED_RANGE:
                    throw new PathTooLongException(SR.GetString(SR.IO_PathTooLong)); 
 
                case NativeMethods.ERROR_SHARING_VIOLATION:
                    // error message. 
                    if (str.Length == 0)
                        throw new IOException(SR.GetString(SR.IO_SharingViolation_NoFileName));
                    else
                        throw new IOException(SR.GetString(SR.IO_SharingViolation_File, str)); 

                default: 
                    throw new IOException(GetMessage(errorCode), MakeHRFromErrorCode(errorCode)); 
            }
        } 

        // Use this to translate error codes like the above into HRESULTs like
        // 0x80070006 for ERROR_INVALID_HANDLE
        internal static int MakeHRFromErrorCode(int errorCode) 
        {
            return unchecked(((int)0x80070000) | errorCode); 
        } 

    } 
}

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