本文整理汇总了C#中System.IO.FileStream.CopyToAsync方法的典型用法代码示例。如果您正苦于以下问题：C# FileStream.CopyToAsync方法的具体用法？C# FileStream.CopyToAsync怎么用？C# FileStream.CopyToAsync使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.IO.FileStream的用法示例。
在下文中一共展示了FileStream.CopyToAsync方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Perform
public async Task Perform()
{
using (var sourceStream = new FileStream(_oldPath, FileMode.Open, FileAccess.Read, FileShare.Read, DefaultBufferSize, FileOptions.Asynchronous | FileOptions.DeleteOnClose))
{
using (var destinationStream = new FileStream(_newPath, FileMode.Create, FileAccess.Write, FileShare.None, DefaultBufferSize, FileOptions.Asynchronous))
{
await sourceStream.CopyToAsync(destinationStream);
}
}
}示例2: ReadAllBytesAsync
/// <summary>
/// Read all bytes from a specified file asynchronously.
/// </summary>
/// <param name="filePath">File path</param>
/// <param name="bufferSize">Buffer size</param>
/// <param name="cancellationToken">CancellationToken</param>
/// <returns>Byte array of file</returns>
public static async Task<byte[]> ReadAllBytesAsync(string filePath, int bufferSize, CancellationToken cancellationToken)
{
using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
using (var ms = new MemoryStream())
{
await fs.CopyToAsync(ms, bufferSize, cancellationToken).ConfigureAwait(false);
return ms.ToArray();
}
}示例3: TranscodeInternal
public async Task TranscodeInternal(CancellationToken ct, IWaveStreamProvider stream, Stream targetStream)
{
var tempFilename = Path.Combine(Path.GetTempPath(), GetTranscodedFileName(Guid.NewGuid().ToString() + ".extension"));
MediaFoundationEncoder.EncodeToMp3(stream, tempFilename, 320000);
using (var tempStream = new FileStream(tempFilename, FileMode.Open, FileAccess.Read))
{
await tempStream.CopyToAsync(targetStream, 81920, ct);
}
File.Delete(tempFilename);
}示例4: CopyTo
public async Task CopyTo(string destination) {
if (!File.Exists(_filename)) {
throw new FileNotFoundException(ToolsStrings.DirectoryInstallator_FileNotFound, _filename);
}
using (var input = new FileStream(_filename, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true))
using (var output = new FileStream(destination, FileMode.Create)) {
await input.CopyToAsync(output);
}
}示例5: ExecuteAsync
/// <summary>
/// Executes the result against the provided service context asynchronously.
/// </summary>
/// <param name="context">The service context.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A task executing the result.</returns>
public virtual async Task ExecuteAsync(IServiceContext context, CancellationToken cancellationToken)
{
context.Response.Output.Buffer = false;
context.Response.Output.Clear();
string etag = context.Response.GenerateEtag(FilePath);
if (etag == context.Request.Headers.TryGet(IfNoneMatchHeaderName))
{
context.Response.SetStatus(HttpStatusCode.NotModified);
return;
}
try
{
using (var fileStream = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
context.Response.SetHeader(context.Response.HeaderNames.ContentLength, fileStream.Length.ToString(CultureInfo.InvariantCulture));
context.Response.SetHeader(context.Response.HeaderNames.ContentType, ContentType ?? DefaultHtmlContentType);
context.Response.SetHeader(context.Response.HeaderNames.ETag, etag);
context.Response.SetCharsetEncoding(context.Request.Headers.AcceptCharsetEncoding);
await fileStream.CopyToAsync(context.Response.Output.Stream, Convert.ToInt32(fileStream.Length), cancellationToken);
}
}
catch (ArgumentException)
{
throw new HttpResponseException(HttpStatusCode.InternalServerError, Global.InvalidFilePathOrUrl);
}
catch (FileNotFoundException)
{
throw new HttpResponseException(HttpStatusCode.InternalServerError, Global.InvalidFilePathOrUrl);
}
catch (DirectoryNotFoundException)
{
throw new HttpResponseException(HttpStatusCode.NotFound, Global.InvalidFilePathOrUrl);
}
catch (PathTooLongException)
{
throw new HttpResponseException(HttpStatusCode.NotFound, Global.InvalidFilePathOrUrl);
}
catch (IOException)
{
throw new HttpResponseException(HttpStatusCode.InternalServerError, Global.InaccessibleFile);
}
catch (SecurityException)
{
throw new HttpResponseException(HttpStatusCode.Forbidden, Global.InaccessibleFile);
}
catch (UnauthorizedAccessException)
{
throw new HttpResponseException(HttpStatusCode.Forbidden, Global.InaccessibleFile);
}
}示例6: LoadToBuffer
public static async Task<byte[]> LoadToBuffer(string FileName) {
byte[] buffer = null;
var f = Application.Environment.ApplicationBasePath + "/" + FileName;
using (var fs = new FileStream(f, FileMode.Open, FileAccess.Read)) {
using (var ms = new MemoryStream()) {
await fs.CopyToAsync(ms);
buffer = ms.ToArray();
}
}
return buffer;
}示例7: BackupROM
private async Task BackupROM()
{
// Copy the original file here with a .bak extension
using (FileStream original = new FileStream(romPath, FileMode.Open, FileAccess.Read, FileShare.None, 4096, true))
{
using (FileStream backup = new FileStream(romPath + ".bak", FileMode.Create, FileAccess.Write, FileShare.None, 4096, true))
{
await original.CopyToAsync(backup);
}
}
}示例8: Configure
public void Configure(IApplicationBuilder app)
{
app.Run(async (ctx) =>
{
var filePath = Path.Combine(_env.ApplicationBasePath, "Testfile");
using (var fileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 1024 * 64,
FileOptions.Asynchronous | FileOptions.SequentialScan))
{
await fileStream.CopyToAsync(ctx.Response.Body);
}
});
}示例9: UploadAsync
public async Task UploadAsync(string url, IDictionary<string, string> headers, string method, string file)
{
byte[] data = null;
using (var fileStream = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read, 1024, true))
{
using (var memStream = new MemoryStream())
{
await fileStream.CopyToAsync(memStream);
data = memStream.ToArray();
}
}
await UploadAsync(url, headers, method, data);
}示例10: ParseFilePath
async Task<Stream> IMessageDataRepository.Get(Uri address, CancellationToken cancellationToken)
{
string filePath = ParseFilePath(address);
string fullPath = Path.Combine(_dataDirectory.FullName, filePath);
if (!File.Exists(fullPath))
throw new FileNotFoundException("The file was not found", fullPath);
using (var stream = new FileStream(fullPath, FileMode.Open, FileAccess.Read, FileShare.Read, DefaultBufferSize, FileOptions.Asynchronous))
{
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream, DefaultBufferSize, cancellationToken);
memoryStream.Position = 0;
return memoryStream;
}
}示例11: RetrieveData
public async Task<MemoryStream> RetrieveData(Guid sourceId, string currentFileName)
{
if (!File.Exists(currentFileName)) return (MemoryStream) Stream.Null;
using (var sourceStream =
new FileStream(
currentFileName,
FileMode.Open,
FileAccess.Read,
FileShare.Read,
4096,
true))
{
var destination = new MemoryStream();
await sourceStream.CopyToAsync(destination);
return destination;
}
}示例12: GetUncompressedImage
public async Task<HttpResponseMessage> GetUncompressedImage()
{
using (var ms = new MemoryStream())
{
var baseDir = Directory.GetParent(AppDomain.CurrentDomain.BaseDirectory).Parent;
var filePath = baseDir.FullName + "/Content/Images/app-icon-1024.png";
using (var fs = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
fs.Position = 0;
await fs.CopyToAsync(ms);
}
var result = new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new ByteArrayContent(ms.ToArray())
};
result.Content.Headers.ContentType = new MediaTypeHeaderValue("image/png");
return result;
}
}开发者ID:SneakyMax，项目名称:Microsoft.AspNet.WebApi.MessageHandlers.Compression，代码行数:22，代码来源:FileController.cs
示例13: Invoke
public override async Task Invoke(IOwinContext context)
{
RequestContentType requestContentType = GetContentType(context.Request.Path.Value);
if(requestContentType != null)
{
context.Response.ContentType = requestContentType.ContentType;
string filePath = MapPath(context.Request.Path.Value);
if (File.Exists(filePath))
{
using (var contentStream = new FileStream(filePath, FileMode.Open))
{
await contentStream.CopyToAsync(context.Response.Body);
}
}
else
{
await Next.Invoke(context);
}
}
else
{
await Next.Invoke(context);
}
}示例14: Invoke
public async Task Invoke(IDictionary<string, object> env)
{
var req = new OwinRequest(env);
string file;
if (!_router.TryGet(req.Path, out file))
{
await _next(env);
}
var resp = new OwinResponse(req)
{
ContentType = "text/html"
};
if (!File.Exists(file))
{
resp.StatusCode = 404;
await resp.WriteAsync("File not found");
}
using (var fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.Read))
{
await fs.CopyToAsync(resp.Body);
}
}示例15: Invoke
public async Task Invoke(HttpContext httpContext)
{
string currentUrl = httpContext.Request.GetDisplayUrl();
string filePath = _routingService.GetPathForUrl(currentUrl);
if (filePath != null)
{
string fileExtension = GetFileExtension(filePath);
httpContext.Response.ContentType = _mimeTypeResolver[fileExtension];
httpContext.Response.StatusCode = 200;
using (var fileStream = new FileStream(filePath, FileMode.Open))
{
await fileStream.CopyToAsync(httpContext.Response.Body);
}
}
else
{
httpContext.Response.StatusCode = 404;
}
}