C# FileStream.Dispose的代码示例
FileStream.Dispose方法的主要功能描述
通过代码示例来学习C# FileStream.Dispose方法
通过代码示例来学习编程是非常高效的。
1. 代码示例提供了一个具体而直观的学习环境，使初学者能够立即看到编程概念和语法的实际应用。
2. 通过分析和模仿现有的代码实例，初学者可以更好地理解编程逻辑和算法的工作原理。
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FileStream.Dispose是C#的System.IO命名空间下中的一个方法, 小编为大家找了一些网络大拿们常见的代码示例，源码中的FileStream.Dispose() 已经帮大家高亮显示了，大家可以重点学习FileStream.Dispose() 方法的写法，从而快速掌握该方法的应用。
FileStream.Dispose的代码示例1 - TryWriteTempFile()
using System.IO;
public virtual bool TryWriteTempFile(
ITracer tracer,
Stream source,
string tempFilePath,
out long fileLength,
out Task flushTask,
bool throwOnError = false)
{
fileLength = 0;
flushTask = null;
try
{
Stream fileStream = null;
try
{
fileStream = this.fileSystem.OpenFileStream(
tempFilePath,
FileMode.OpenOrCreate,
FileAccess.Write,
FileShare.Read,
callFlushFileBuffers: false); // Any flushing to disk will be done asynchronously
StreamUtil.CopyToWithBuffer(source, fileStream);
fileLength = fileStream.Length;
if (this.Enlistment.FlushFileBuffersForPacks)
{
// Flush any data buffered in FileStream to the file system
fileStream.Flush();
// FlushFileBuffers using FlushAsync
// Do this last to ensure that the stream is not being accessed after it's been disposed
flushTask = fileStream.FlushAsync().ContinueWith((result) => fileStream.Dispose());
}
}
finally
{
if (flushTask == null && fileStream != null)
{
fileStream.Dispose();
}
}
this.ValidateTempFile(tempFilePath, tempFilePath);
}
catch (Exception ex)
{
if (flushTask != null)
{
flushTask.Wait();
flushTask = null;
}
this.CleanupTempFile(this.Tracer, tempFilePath);
if (tracer != null)
{
EventMetadata metadata = CreateEventMetadata(ex);
metadata.Add("tempFilePath", tempFilePath);
tracer.RelatedWarning(metadata, $"{nameof(this.TryWriteTempFile)}: Exception caught while writing temp file", Keywords.Telemetry);
}
if (throwOnError)
{
throw;
}
else
{
return false;
}
}
return true;
}
开发者ID: microsoft, 项目名称: VFSForGit, 代码行数: 77, 代码来源: GitObjects.cs
在microsoft提供的TryWriteTempFile()方法中，该源代码示例一共有77行， 其中使用了FileStream.Dispose()2次, 并且小编将这些方法高亮显示出来了，希望对您了解FileStream.Dispose()有帮助。 如果您觉得有帮助的话，请帮忙点赞或转发。
该代码示例的点赞次数为3, 点赞数越大, 从某种程度说明这个示例对了解FileStream.Dispose()可能更有帮助。
FileStream.Dispose的代码示例2 - YaraScanFile()
using System.IO;
public static List YaraScanFile(string fileName, bool verbose)
{
List beaconScanMatches = new List();
using (var ctx = new YaraContext())
{
Rules rules = null;
try
{
using (Compiler compiler = new Compiler())
{
// Retrieve YARA rules from YaraRules static class and compile them for scanning
foreach (string rule in YaraRules.meterpreterRules)
{
compiler.AddRuleString(rule);
}
compiler.AddRuleString(YaraRules.cobaltStrikeRule);
rules = compiler.GetRules();
}
// Scanner and ScanResults do not need to be disposed.
var scanner = new Scanner();
List results = new List();
// If file size > 2GB, stream the file and use ScanMemory() on file chunks rather than reading the whole file via
if (new FileInfo(fileName).Length < Int32.MaxValue)
{
results.AddRange(scanner.ScanFile(fileName, rules));
}
else
{
using (FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read))
{
// Parse the file in 200MB chunks
int chunkSize = 1024 * 1024 * 200;
byte[] chunk = new byte[chunkSize];
int bytesRead = 0;
long bytesToRead = fileStream.Length;
while (bytesToRead != 0)
{
int n = fileStream.Read(chunk, 0, chunkSize);
if (n == 0)
{
break;
}
// Yara scan the file chunk and add any results to the list
var scanResults = scanner.ScanMemory(chunk, rules);
// Because the file is being scanned in chunks, match offsets are based on the start of the chunk. Need to add
// previous bytes read to the current match offsets
if (scanResults.Count > 0)
{
foreach (ScanResult result in scanResults)
{
if (result.MatchingRule.Identifier.Contains("CobaltStrike"))
{
foreach (string key in result.Matches.Keys)
{
result.Matches[key][0].Offset += (ulong)bytesRead;
}
results.Add(result);
}
}
}
bytesRead += n;
bytesToRead -= n;
// Shitty progress update
if (verbose && bytesRead > 0 && bytesRead <= fileStream.Length)
Console.Write($"\r\tScanned {bytesRead} bytes of {fileStream.Length} byte file...");
}
}
if (verbose)
Console.WriteLine($"\r\tFinished scanning file: {fileName}\t\t\t");
}
beaconScanMatches = ParseScanResults(results);
}
finally
{
// Rules and Compiler objects must be disposed.
if (rules != null) rules.Dispose();
}
return beaconScanMatches;
}
}
开发者ID: Apr4h, 项目名称: CobaltStrikeScan, 代码行数: 98, 代码来源: CobaltStrikeScan.cs
在Apr4h提供的YaraScanFile()方法中，该源代码示例一共有98行， 其中使用了FileStream.Dispose()1次, 并且小编将这些方法高亮显示出来了，希望对您了解FileStream.Dispose()有帮助。 如果您觉得有帮助的话，请帮忙点赞或转发。
该代码示例的点赞次数为3, 点赞数越大, 从某种程度说明这个示例对了解FileStream.Dispose()可能更有帮助。
FileStream.Dispose的代码示例3 - ExecuteCoreAsync()
using System.IO;
protected override Task ExecuteCoreAsync()
{
// Make sure there's only one server with the same identity at a time.
var serverMutexName = MutexName.GetServerMutexName(Pipe.Value());
Mutex serverMutex = null;
var holdsMutex = false;
try
{
serverMutex = new Mutex(initiallyOwned: true, name: serverMutexName, createdNew: out holdsMutex);
}
catch (Exception ex)
{
// The Mutex constructor can throw in certain cases. One specific example is docker containers
// where the /tmp directory is restricted. In those cases there is no reliable way to execute
// the server and we need to fall back to the command line.
// Example: https://github.com/dotnet/roslyn/issues/24124
Error.Write($"Server mutex creation failed. {ex.Message}");
return Task.FromResult(-1);
}
if (!holdsMutex)
{
// Another server is running, just exit.
Error.Write("Another server already running...");
return Task.FromResult(1);
}
FileStream pidFileStream = null;
try
{
try
{
// Write the process and pipe information to a file in a well-known location.
pidFileStream = WritePidFile();
}
catch (Exception ex)
{
// Something happened when trying to write to the pid file. Log and move on.
ServerLogger.LogException(ex, "Failed to create PID file.");
}
TimeSpan? keepAlive = null;
if (KeepAlive.HasValue() && int.TryParse(KeepAlive.Value(), out var result))
{
// Keep alive times are specified in seconds
keepAlive = TimeSpan.FromSeconds(result);
}
var host = ConnectionHost.Create(Pipe.Value());
var compilerHost = CompilerHost.Create();
ExecuteServerCore(host, compilerHost, Cancelled, eventBus: null, keepAlive: keepAlive);
}
finally
{
serverMutex.ReleaseMutex();
serverMutex.Dispose();
pidFileStream?.Close();
}
return Task.FromResult(0);
}
开发者ID: aspnet, 项目名称: Razor, 代码行数: 67, 代码来源: ServerCommand.cs
在aspnet提供的ExecuteCoreAsync()方法中，该源代码示例一共有67行， 其中使用了FileStream.Dispose()1次, 并且小编将这些方法高亮显示出来了，希望对您了解FileStream.Dispose()有帮助。 如果您觉得有帮助的话，请帮忙点赞或转发。
该代码示例的点赞次数为3, 点赞数越大, 从某种程度说明这个示例对了解FileStream.Dispose()可能更有帮助。
FileStream.Dispose的代码示例4 - OpenAsync()
using System.IO;
public override IAsyncOperation OpenAsync(FileAccessMode accessMode)
{
return AsyncInfo.Run((cancellationToken) => SafetyExtensions.Wrap(async () =>
{
bool rw = accessMode is FileAccessMode.ReadWrite;
if (Path == containerPath)
{
if (backingFile is not null)
{
return await backingFile.OpenAsync(accessMode);
}
var file = NativeFileOperationsHelper.OpenFileForRead(containerPath, rw);
return file.IsInvalid ? null : new FileStream(file, rw ? FileAccess.ReadWrite : FileAccess.Read).AsRandomAccessStream();
}
if (!rw)
{
SevenZipExtractor zipFile = await OpenZipFileAsync();
if (zipFile is null || zipFile.ArchiveFileData is null)
{
return null;
}
//zipFile.IsStreamOwner = true;
var entry = zipFile.ArchiveFileData.FirstOrDefault(x => System.IO.Path.Combine(containerPath, x.FileName) == Path);
if (entry.FileName is not null)
{
var ms = new MemoryStream();
await zipFile.ExtractFileAsync(entry.Index, ms);
ms.Position = 0;
return new NonSeekableRandomAccessStreamForRead(ms, entry.Size)
{
DisposeCallback = () => zipFile.Dispose()
};
}
return null;
}
throw new NotSupportedException("Can't open zip file as RW");
}, ((IPasswordProtectedItem)this).RetryWithCredentialsAsync));
}
开发者ID: files-community, 项目名称: Files, 代码行数: 45, 代码来源: ZipStorageFile.cs
在files-community提供的OpenAsync()方法中，该源代码示例一共有45行， 其中使用了FileStream.Dispose()1次, 并且小编将这些方法高亮显示出来了，希望对您了解FileStream.Dispose()有帮助。 如果您觉得有帮助的话，请帮忙点赞或转发。
该代码示例的点赞次数为3, 点赞数越大, 从某种程度说明这个示例对了解FileStream.Dispose()可能更有帮助。
FileStream.Dispose的代码示例5 - Output()
using System.IO;
public override int Output(IEnumerable source, BsonValue options)
{
var filename = GetOption(options, "filename")?.AsString ?? throw new LiteException(0, "Collection $file_json requires string as 'filename' or a document field 'filename'");
var overwritten = GetOption(options, "overwritten", false).AsBoolean;
var encoding = GetOption(options, "encoding", "utf-8").AsString;
var delimiter = GetOption(options, "delimiter", ",").AsString[0];
var header = GetOption(options, "header", true).AsBoolean;
var index = 0;
IList headerFields = null;
FileStream fs = null;
StreamWriter writer = null;
try
{
foreach (var doc in source)
{
if (index++ == 0)
{
fs = new FileStream(filename, overwritten ? FileMode.OpenOrCreate : FileMode.CreateNew);
writer = new StreamWriter(fs, Encoding.GetEncoding(encoding));
headerFields = doc.Keys.ToList();
// print file header
if (header)
{
var idxHeader = 0;
foreach (var elem in doc)
{
if (idxHeader++ > 0) writer.Write(delimiter);
writer.Write(elem.Key);
}
writer.WriteLine();
}
}
else
{
writer.WriteLine();
}
var idxValue = 0;
foreach(var field in headerFields)
{
var value = doc[field];
if (idxValue++ > 0) writer.Write(delimiter);
this.WriteValue(value, writer);
}
}
if (index > 0)
{
writer.Flush();
}
}
finally
{
if (writer != null) writer.Dispose();
if (fs != null) fs.Dispose();
}
return index;
}
开发者ID: mbdavid, 项目名称: LiteDB, 代码行数: 71, 代码来源: SysFileCsv.cs
在mbdavid提供的Output()方法中，该源代码示例一共有71行， 其中使用了FileStream.Dispose()2次, 并且小编将这些方法高亮显示出来了，希望对您了解FileStream.Dispose()有帮助。 如果您觉得有帮助的话，请帮忙点赞或转发。
该代码示例的点赞次数为3, 点赞数越大, 从某种程度说明这个示例对了解FileStream.Dispose()可能更有帮助。
FileStream.Dispose的代码示例6 - Output()
using System.IO;
public override int Output(IEnumerable source, BsonValue options)
{
var filename = GetOption(options, "filename")?.AsString ?? throw new LiteException(0, "Collection $file_json requires string as filename or a document field 'filename'");
var pretty = GetOption(options, "pretty", false).AsBoolean;
var indent = GetOption(options, "indent", 4).AsInt32;
var encoding = GetOption(options, "encoding", "utf-8").AsString;
var overwritten = GetOption(options, "overwritten", false).AsBoolean;
var index = 0;
FileStream fs = null;
StreamWriter writer = null;
JsonWriter json = null;
try
{
foreach (var doc in source)
{
if (index++ == 0)
{
fs = new FileStream(filename, overwritten ? FileMode.OpenOrCreate : FileMode.CreateNew);
writer = new StreamWriter(fs, Encoding.GetEncoding(encoding));
json = new JsonWriter(writer)
{
Pretty = pretty,
Indent = indent
};
writer.WriteLine("[");
}
else
{
writer.WriteLine(",");
}
json.Serialize(doc);
}
if (index > 0)
{
writer.WriteLine();
writer.Write("]");
writer.Flush();
}
}
finally
{
if (writer != null) writer.Dispose();
if (fs != null) fs.Dispose();
}
return index;
}
开发者ID: mbdavid, 项目名称: LiteDB, 代码行数: 54, 代码来源: SysFileJson.cs
在mbdavid提供的Output()方法中，该源代码示例一共有54行， 其中使用了FileStream.Dispose()2次, 并且小编将这些方法高亮显示出来了，希望对您了解FileStream.Dispose()有帮助。 如果您觉得有帮助的话，请帮忙点赞或转发。
该代码示例的点赞次数为3, 点赞数越大, 从某种程度说明这个示例对了解FileStream.Dispose()可能更有帮助。
FileStream.Dispose()方法的常见问题及解答
C#中FileStream.Dispose()的常见错误类型及注意事项
FileStream.Dispose的错误类型有很多， 这里就不一一阐述了，本文只列出一些常见的代码示例供参考，大家可以看一下代码中Catch语句中是否有常见的错误捕获及处理。
C#中FileStream.Dispose()的构造函数有哪些
FileStream.Dispose构造函数功能基本类似，只是参数不同; 目前主流的集成开发环境都已经带智能提醒了，如:Visual Studio; 大家可以非常轻松的通过Visual Studio中的智能提醒，了解对应构造函数的用法。
如何使用ChartGPT写一段FileStream.Dispose的代码
你可以在ChartGPT中输入如下的指令："提供一个如何使用FileStream.Dispose的C#代码示例"
ChartGPT写出的代码和本文中的小编提供的代码的区别。 ChartGPT发展到现在已经非常聪明了，但需要使用这提供非常专业的问题，才可能有比较好的源代码示例； 而本文中， 小编已经帮您列出来基本所有类和所有方法的使用示例， 而且这些示例基本都是一些网络大佬提供的源码，可以更方便的供一些开发菜鸟或者资深开发参考和学习。
FileStream.Dispose所在的类及名称空间
FileStream.Dispose是System.IO下的方法。
FileStream.Dispose怎么使用?
FileStream.Dispose使用上比较简单，可以参考MSDN中的帮助文档，也参考本文中提供的7个使用示例。
FileStream.Dispose菜鸟教程
对于菜鸟来说，本文中提供的7个FileStream.Dispose写法都将非常直观的帮您掌握FileStream.Dispose的用法，是一个不错的参考教程。
本文中的FileStream.Dispose方法示例由csref.cn整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。