public void 刪除資料夾()
{
using var fileSystem = new MemoryFileSystem();
Console.WriteLine("建立資料夾");
fileSystem.CreateDirectory("dir1/dir2/dir3/");
fileSystem.PrintTo(Console.Out);
Console.WriteLine("刪除 dir2 資料夾");
fileSystem.Delete("dir1/dir2/", true);
fileSystem.PrintTo(Console.Out);
}
public static void Main(string[] args)
{
{
// <Snippet_1>
IFileSystem ms = new MemoryFileSystem();
ms.CreateFile("file", new byte[1024 * 1024]);
using (var s = new OperationSession())
{
new CopyFile(s, ms, "file", ms, "file.copy")
.Estimate()
.AssertCanRollback()
.Run()
.AssertSuccessful();
}
// </Snippet_1>
ms.PrintTo(Console.Out, format: PrintTree.Format.Default | PrintTree.Format.Length);
}
{
IFileSystem ms = new MemoryFileSystem();
ms.CreateFile("file", new byte[1024 * 1024]);
// <Snippet_1b>
var s = new OperationSession();
var op = new CopyFile(s, ms, "file", ms, "file.copy");
op.Estimate();
// </Snippet_1b>
// <Snippet_1b1>
Console.WriteLine(op.CanRollback);
// </Snippet_1b1>
// <Snippet_1b2>
op.Estimate().AssertCanRollback();
// </Snippet_1b2>
// <Snippet_1c>
op.Run();
// </Snippet_1c>
// <Snippet_1c1>
if (op.CurrentState == OperationState.Completed)
{
Console.WriteLine("ok");
}
// </Snippet_1c1>
ms.Delete("file.copy");
op = (CopyFile) new CopyFile(s, ms, "file", ms, "file.copy").Estimate();
// <Snippet_1c2>
op.Run().AssertSuccessful();
// </Snippet_1c2>
ms.Delete("file.copy");
op = (CopyFile) new CopyFile(s, ms, "file", ms, "file.copy").Estimate();
// <Snippet_1c3>
try
{
op.Run();
}
catch (Exception)
{
// Rollback
op.CreateRollback()?.Run();
}
// </Snippet_1c3>
// <Snippet_1c4>
op.Run(rollbackOnError: true);
// </Snippet_1c4>
}
{
// <Snippet_2>
IFileSystem ms = new MemoryFileSystem();
ms.CreateDirectory("dir/dir/dir/");
ms.CreateFile("dir/dir/dir/file", new byte[1024 * 1024]);
using (var s = new OperationSession())
{
var op = new CopyTree(s, ms, "dir", ms, "dir.copy");
op.Estimate().AssertCanRollback().Run().AssertSuccessful();
}
// </Snippet_2>
ms.PrintTo(Console.Out);
}
{
// <Snippet_3>
IFileSystem ms = new MemoryFileSystem();
using (var s = new OperationSession(policy: OperationPolicy.EstimateOnRun /*important*/))
{
Batch batch = new Batch(s, OperationPolicy.Unset);
batch.Ops.Add(new CreateDirectory(s, ms, "dir/dir/dir"));
batch.Ops.Add(new CopyTree(s, ms, "dir", ms, "dir.copy"));
batch.Ops.Add(new Delete(s, ms, "dir/dir", true, policy: OperationPolicy.EstimateOnRun));
batch.Estimate().Run().AssertSuccessful();
}
// </Snippet_3>
ms.PrintTo(Console.Out);
}
{
// <Snippet_4>
IFileSystem ms_src = new MemoryFileSystem();
ms_src.CreateDirectory("dir/dir/dir/");
ms_src.CreateFile("dir/dir/dir/file", new byte[1024 * 1024]);
IFileSystem ms_dst = new MemoryFileSystem();
using (var s = new OperationSession())
{
var op = new TransferTree(s, ms_src, "dir", ms_dst, "dir.elsewhere");
op.Estimate().AssertCanRollback().Run().AssertSuccessful();
}
// </Snippet_4>
ms_dst.PrintTo(Console.Out);
}
{
// <Snippet_5>
IFileSystem ms = new MemoryFileSystem();
ms.CreateFile("file", new byte[1024 * 1024]);
using (var s = new OperationSession())
{
new CopyFile(s, ms, "file", ms, "file.copy")
.Estimate()
.AssertCanRollback()
.Run()
.AssertSuccessful();
foreach (var @event in s.Events)
{
Console.WriteLine(@event);
}
}
ms.PrintTo(Console.Out);
// </Snippet_5>
}
{
// <Snippet_6>
IFileSystem ms = new MemoryFileSystem();
ms.CreateFile("file", new byte[1024 * 20]);
using (var s = new OperationSession().SetProgressInterval(1024))
{
s.Subscribe(new OpEventPrinter());
new CopyFile(s, ms, "file", ms, "file.copy")
.Estimate()
.AssertCanRollback()
.Run()
.AssertSuccessful();
}
ms.PrintTo(Console.Out);
// </Snippet_6>
}
{
try
{
// <Snippet_7>
IFileSystem ms = new MemoryFileSystem();
ms.CreateFile("file", new byte[1024 * 10]);
CancellationTokenSource cancelSrc = new CancellationTokenSource();
using (var s = new OperationSession(cancelSrc: cancelSrc))
{
cancelSrc.Cancel();
new Move(s, ms, "file", ms, "file.moved")
.Estimate()
.AssertCanRollback()
.Run()
.AssertSuccessful();
}
// </Snippet_7>
} catch (Exception e)
{
}
}
{
// <Snippet_8>
// </Snippet_8>
}
{
// <Snippet_9>
// </Snippet_9>
}
{
// <Snippet_10>
// </Snippet_10>
}
{
// <Snippet_11>
// </Snippet_11>
}
{
// <Snippet_12>
// </Snippet_12>
}
{
// <Snippet_13>
// </Snippet_13>
}
{
// <Snippet_14>
// </Snippet_14>
}
{
// <Snippet_15>
// </Snippet_15>
}
{
// <Snippet_16>
// </Snippet_16>
}
}
public static void Main(string[] args)
{
{
#region Snippet_1
IFileSystem filesystem = new MemoryFileSystem();
#endregion Snippet_1
}
{
#region Snippet_1b
IFileSystem filesystem = new MemoryFileSystem(blockSize: 4096);
#endregion Snippet_1b
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_2
foreach (var entry in filesystem.Browse(""))
{
Console.WriteLine(entry.Path);
}
#endregion Snippet_2
}
{
IFileSystem filesystem = new MemoryFileSystem();
filesystem.CreateFile("file.txt");
#region Snippet_3a
using (Stream s = filesystem.Open("file.txt", FileMode.Open, FileAccess.Read, FileShare.Read))
{
Console.WriteLine(s.Length);
}
#endregion Snippet_3a
}
{
IFileSystem filesystem = new MemoryFileSystem();
filesystem.CreateFile("file.txt");
#region Snippet_3b
using (Stream s = filesystem.Open("file.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite))
{
s.WriteByte(32);
}
#endregion Snippet_3b
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_4
IObserver <IEvent> observer = new Observer();
using (IDisposable handle = filesystem.Observe("**", observer))
{
}
#endregion Snippet_4
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_5
filesystem.CreateDirectory("dir/");
#endregion Snippet_5
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_5a
filesystem.CreateDirectory("dir1/dir2/dir3/");
filesystem.PrintTo(Console.Out);
#endregion Snippet_5a
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_5b
filesystem.CreateDirectory("/tmp/dir/");
#endregion Snippet_5b
filesystem.PrintTo(Console.Out);
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_5c
filesystem.CreateDirectory("/tmp/dir/");
#endregion Snippet_5c
filesystem.PrintTo(Console.Out);
}
{
IFileSystem filesystem = new MemoryFileSystem();
#region Snippet_5d
filesystem.CreateDirectory("file://");
#endregion Snippet_5d
filesystem.PrintTo(Console.Out);
}
{
IFileSystem filesystem = new MemoryFileSystem();
filesystem.CreateDirectory("dir/");
#region Snippet_6
filesystem.Delete("dir/", recurse: true);
#endregion Snippet_6
}
{
IFileSystem filesystem = new MemoryFileSystem();
filesystem.CreateDirectory("dir/");
#region Snippet_7
filesystem.CreateDirectory("dir/");
filesystem.Move("dir/", "new-name/");
#endregion Snippet_7
filesystem.Delete("new-name/");
}
{
#region Snippet_8a
IFileSystem filesystem = new MemoryFileSystem();
#endregion Snippet_8a
foreach (var entry in filesystem.Browse(""))
{
Console.WriteLine(entry.Path);
}
}
{
#region Snippet_8b
#endregion Snippet_8b
}
{
#region Snippet_10a
// Init
object obj = new ReaderWriterLockSlim();
IFileSystemDisposable filesystem = new FileSystem("").AddDisposable(obj);
// ... do work ...
// Dispose both
filesystem.Dispose();
#endregion Snippet_10a
}
{
#region Snippet_10b
IFileSystemDisposable filesystem = new FileSystem("")
.AddDisposeAction(f => Console.WriteLine("Disposed"));
#endregion Snippet_10b
}
{
#region Snippet_10c
MemoryFileSystem filesystem = new MemoryFileSystem();
filesystem.CreateDirectory("/tmp/dir/");
// Postpone dispose
IDisposable belateDisposeHandle = filesystem.BelateDispose();
// Start concurrent work
Task.Run(() =>
{
// Do work
Thread.Sleep(1000);
filesystem.GetEntry("");
// Release belate handle. Disposes here or below, depending which thread runs last.
belateDisposeHandle.Dispose();
});
// Start dispose, but postpone it until belatehandle is disposed in another thread.
filesystem.Dispose();
#endregion Snippet_10c
}
{
// <Snippet_20a>
IFileSystem ms = new MemoryFileSystem(blockSize: 1024, maxSpace: 1L << 34);
// </Snippet_20a>
}
{
// <Snippet_20b>
IFileSystem ms = new MemoryFileSystem(blockSize: 1024, maxSpace: 1L << 34);
ms.CreateFile("file", new byte[1 << 30]);
ms.PrintTo(Console.Out, format: PrintTree.Format.AllWithName);
// </Snippet_20b>
}
{
try
{
// <Snippet_20c>
IFileSystem ms = new MemoryFileSystem(blockSize: 1024, maxSpace: 2048);
ms.CreateFile("file1", new byte[1024]);
ms.CreateFile("file2", new byte[1024]);
// throws FileSystemExceptionOutOfDiskSpace
ms.CreateFile("file3", new byte[1024]);
// </Snippet_20c>
}
catch (FileSystemExceptionOutOfDiskSpace) { }
}
{
try
{
// <Snippet_20d>
IBlockPool pool = new BlockPool(blockSize: 1024, maxBlockCount: 3, maxRecycleQueue: 3);
IFileSystem ms1 = new MemoryFileSystem(pool);
IFileSystem ms2 = new MemoryFileSystem(pool);
// Reserve 2048 from shared pool
ms1.CreateFile("file1", new byte[2048]);
// Not enough for another 3072, throws FileSystemExceptionOutOfDiskSpace
ms2.CreateFile("file2", new byte[2048]);
// </Snippet_20d>
}
catch (FileSystemExceptionOutOfDiskSpace) { }
}
{
try
{
// <Snippet_20e>
IBlockPool pool = new BlockPool(blockSize: 1024, maxBlockCount: 3, maxRecycleQueue: 3);
IFileSystem ms = new MemoryFileSystem(pool);
Stream s = ms.Open("file", FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite);
s.Write(new byte[3072], 0, 3072);
ms.Delete("file");
Console.WriteLine(pool.BytesAvailable); // Prints 0
s.Dispose();
Console.WriteLine(pool.BytesAvailable); // Prints 3072
// </Snippet_20e>
}
catch (FileSystemExceptionOutOfDiskSpace) { }
}
}