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/ 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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