143 lines
4.7 KiB
Plaintext
143 lines
4.7 KiB
Plaintext
///////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// File: Delete.sg
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//
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// Note:
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//
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using FileSystem.Utils;
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using System;
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using System.Text;
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using System.Threading;
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using Microsoft.Singularity;
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using Microsoft.Singularity.Directory;
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using Microsoft.Singularity.Channels;
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using Microsoft.Singularity.FileSystem;
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using Microsoft.Singularity.V1.Services;
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using Microsoft.Contracts;
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using Microsoft.SingSharp.Reflection;
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using Microsoft.Singularity.Applications;
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using Microsoft.Singularity.Io;
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using Microsoft.Singularity.Configuration;
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[assembly: Transform(typeof(ApplicationResourceTransform))]
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namespace Microsoft.Singularity.Applications
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{
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[ConsoleCategory(HelpMessage="delete named file", DefaultAction=true)]
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internal class Parameters
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{
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[InputEndpoint("data")]
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public readonly TRef<UnicodePipeContract.Exp:READY> Stdin;
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[OutputEndpoint("data")]
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public readonly TRef<UnicodePipeContract.Imp:READY> Stdout;
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[Endpoint]
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public readonly TRef<DirectoryServiceContract.Imp:Start> nsRef;
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[StringParameter( "filename", Mandatory=true, Position=0, HelpMessage="Name of file.")]
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internal string fileName;
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reflective internal Parameters();
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internal int AppMain() {
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return FsDelete.AppMain(this);
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}
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}
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public class FsDelete
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{
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internal static bool DeleteFile(string! fileName, DirectoryServiceContract.Imp! ds)
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{
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ErrorCode error;
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FileUtils.DeleteFile(fileName, ds, out error);
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bool ok = (error == ErrorCode.NoError);
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if (!ok) {
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Console.WriteLine(" File ({0}) delete failed. reason:{1}",
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fileName, SdsUtils.ErrorCodeToString(error) );
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}
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return ok;
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}
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internal static bool DeleteLink(string! fileName, DirectoryServiceContract.Imp! ds)
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{
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ErrorCode error;
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bool ok = SdsUtils.DeleteLink(fileName, ds, out error);
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if (!ok) {
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Console.WriteLine(" Symbolic Link ({0}) delete failed. reason:{1}",
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fileName, SdsUtils.ErrorCodeToString(error) );
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}
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#if DEBUG
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else {
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DebugStub.Break();
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}
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#endif
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return ok;
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}
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internal static bool DeleteDirectory(string! fileName, DirectoryServiceContract.Imp! ds)
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{
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ErrorCode error;
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bool ok = SdsUtils.DeleteDirectory(fileName, ds, out error);
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if (!ok) {
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Console.WriteLine("Delete of directory ({0}) failed. reason:{1}",
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fileName, SdsUtils.ErrorCodeToString(error) );
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}
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return ok;
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}
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internal static int AppMain(Parameters! config)
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{
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DirectoryServiceContract.Imp ds = (config.nsRef).Acquire();
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if (ds == null) {
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throw new Exception("Unable to acquire handle to the Directory Service root");
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}
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ds.RecvSuccess();
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// see what kind of entity the path points to.
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ErrorCode error;
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NodeType nodeType;
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long size;
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bool ok = SdsUtils.GetAttributes(config.fileName, ds, out size, out nodeType, out error);
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if (!ok) {
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Console.WriteLine(" File ({0}) not found. reason:{1}",
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config.fileName, SdsUtils.ErrorCodeToString(error) );
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#if DEBUG
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DebugStub.Break();
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#endif
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delete ds;
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return -1;
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}
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bool success = false;
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switch (nodeType) {
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case NodeType.File:
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success = DeleteFile(config.fileName, ds);
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break;
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case NodeType.Directory:
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success = DeleteDirectory(config.fileName, ds);
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break;
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case NodeType.SymLink:
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Console.WriteLine("Warning delete link in /fs will hand system");
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success = DeleteLink(config.fileName, ds);
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break;
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default:
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Console.WriteLine(" File ({0}) is of type '({1}). Unable to delete",
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config.fileName, SdsUtils.NodeTypeToString(nodeType) );
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success = false;
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break;
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}
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delete ds;
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return success ? 0 : 1;
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}
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} // class Test
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}
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