本文整理汇总了C#中CancellationToken类的典型用法代码示例。如果您正苦于以下问题：C# CancellationToken类的具体用法？C# CancellationToken怎么用？C# CancellationToken使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
CancellationToken类属于命名空间，在下文中一共展示了CancellationToken类的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: SendAsync
protected override Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request, CancellationToken cancellationToken)
{
if (request.Method == HttpMethod.Get && request.RequestUri.Segments.Last() == "authtoken")
{
string querystring = request.RequestUri.Query.Substring(1);
string[] queryParams = querystring.Split(new[] { '&' });
var queryStringParams = request.RequestUri.ParseQueryString();
if (queryStringParams.Count > 0)
{
string code = queryParams.Where(p => p.StartsWith("code")).First().Split(new[] { '=' })[1];
return Task.Factory.StartNew(
() =>
{
string accessToken = this.GetFacebookAccessToken(code, request);
string username = GetFacebookUsername(accessToken);
var ticket = new FormsAuthenticationTicket(username, false, 60);
string s = FormsAuthentication.Encrypt(ticket);
var response = new HttpResponseMessage();
response.Headers.Add("Set-Cookie", string.Format("ticket={0}; path=/", s));
var responseContentBuilder = new StringBuilder();
responseContentBuilder.AppendLine("<html>");
responseContentBuilder.AppendLine(" <head>");
responseContentBuilder.AppendLine(" <title>Login Callback</title>");
responseContentBuilder.AppendLine(" </head>");
responseContentBuilder.AppendLine(" <body>");
responseContentBuilder.AppendLine(" <script type=\"text/javascript\">");
responseContentBuilder.AppendLine(
" if(window.opener){");
if (queryStringParams["callback"] != null)
{
responseContentBuilder.AppendLine(queryStringParams["callback"] + "();");
}
responseContentBuilder.AppendLine(" window.close()';");
responseContentBuilder.AppendLine(" }");
responseContentBuilder.AppendLine(" </script>");
responseContentBuilder.AppendLine(" </body>");
responseContentBuilder.AppendLine("</html>");
response.Content = new StringContent(responseContentBuilder.ToString());
response.Content.Headers.ContentType = new MediaTypeHeaderValue("text/html");
response.Headers.CacheControl = new CacheControlHeaderValue { NoCache = true };
return response;
});
}
return Task.Factory.StartNew(() => new HttpResponseMessage(HttpStatusCode.InternalServerError));
}
return base.SendAsync(request, cancellationToken);
}示例2: SendAsync
protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
var authHeader = request.Headers.Authorization;
if (authHeader == null)
return base.SendAsync(request, cancellationToken);
if (authHeader.Scheme != "Basic")
return base.SendAsync(request, cancellationToken);
if (String.IsNullOrEmpty(authHeader.Parameter))
return base.SendAsync(request, cancellationToken);
var encodedUserPass = authHeader.Parameter.Trim();
var userPass = Encoding.ASCII.GetString(Convert.FromBase64String(encodedUserPass));
var parts = userPass.Split(":".ToCharArray());
var email = parts[0];
var password = parts[1];
var mem = new UserMembershipProvider();
if (!mem.ValidateUserEncoded(email, password))
return base.SendAsync(request, cancellationToken);
var i = new RadarIdentity(email, "Basic");
//var identity = new GenericIdentity(username, "Basic");
//string[] roles = RadarRoleProvider.GetRolesForUser(email);
var p = new RadarPrincipal(i);
//var principal = new GenericPrincipal(i, roles);
Thread.CurrentPrincipal = p;
if (HttpContext.Current != null)
HttpContext.Current.User = p;
return base.SendAsync(request, cancellationToken);
}示例3: ExecuteAsync
public Task<HttpResponseMessage> ExecuteAsync(CancellationToken cancellationToken)
{
HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.InternalServerError);
response.Content = new StringContent(Content);
response.RequestMessage = Request;
return Task.FromResult(response);
}开发者ID:chimpinano，项目名称:generator-webapi-owin-jwt-aspnet-identity，代码行数:7，代码来源:_apiglobalexceptionhandler.cs
示例4: SendAsync
protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
// if request is local, just serve it without https
object httpContextBaseObject;
if (request.Properties.TryGetValue("MS_HttpContext", out httpContextBaseObject))
{
var httpContextBase = httpContextBaseObject as HttpContextBase;
if (httpContextBase != null && httpContextBase.Request.IsLocal)
{
return base.SendAsync(request, cancellationToken);
}
}
// if request is remote, enforce https
if (request.RequestUri.Scheme != Uri.UriSchemeHttps)
{
return Task<HttpResponseMessage>.Factory.StartNew(
() =>
{
var response = new HttpResponseMessage(HttpStatusCode.Forbidden)
{
Content = new StringContent("HTTPS Required")
};
return response;
});
}
return base.SendAsync(request, cancellationToken);
}示例5: Iterate
/// <summary>Asynchronously iterates through an enumerable of tasks.</summary>
/// <param name="factory">The target factory.</param>
/// <param name="source">The enumerable containing the tasks to be iterated through.</param>
/// <param name="cancellationToken">The cancellation token used to cancel the iteration.</param>
/// <param name="creationOptions">Options that control the task's behavior.</param>
/// <param name="scheduler">The scheduler to which tasks will be scheduled.</param>
/// <returns>A Task that represents the complete asynchronous operation.</returns>
public static Task Iterate(
this TaskFactory factory,
IEnumerable<object> source,
CancellationToken cancellationToken, TaskCreationOptions creationOptions, TaskScheduler scheduler)
{
return Iterate(factory, source, null, cancellationToken, creationOptions, scheduler);
}示例6: Authenticate
/// <summary>
/// Takes an OAuth code and turns it into an API token.
/// </summary>
/// <param name="code">A code returned from the OAuth page (https://quizlet.com/authorize/)</param>
/// <param name="success">A delegate to be called when the authentication succeeds.</param>
/// <param name="failure">What to do when the authentication fails.</param>
/// <param name="token">A CancellationToken, which is currently useless.</param>
public void Authenticate(string code, Action success, Action<Exception> failure, CancellationToken token)
{
var fields = "grant_type=authorization_code&code=" + code + "&redirect_uri=https://q.asztal.net/";
var req = new HttpsRequest("POST", "/oauth/token");
req.BasicAuthorization(ClientID, SecretKey);
req.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
req.PostData = Encoding.UTF8.GetBytes(fields);
FetchJSON(req,
json => {
try {
if (json is JsonDictionary) {
var ctx = new JsonContext();
var accessToken = ctx.FromJson<string>((json as JsonDictionary).Items["access_token"]);
var userName = ctx.FromJson<string>((json as JsonDictionary).Items["user_id"]);
var tokenExpiry = DateTime.Now.AddSeconds(ctx.FromJson<double>((json as JsonDictionary).Items["expires_in"]));
Credentials = new Credentials(accessToken, userName, tokenExpiry);
success();
} else {
failure(new FormatException("Quizlet server returned an invalid response."));
}
} catch (KeyNotFoundException) {
failure(new FormatException("Quizlet server returned an invalid response."));
} catch (JsonConvertException) {
failure(new FormatException("Quizlet server returned an invalid response."));
}
},
failure,
token);
}示例7: ExecuteAuthorizationFilterAsync
//// this is Castle.Core.Logging.ILogger, not log4net.Core.ILogger
//public ILogger Logger { get; set; }
/// <summary>
/// Executes the authorization filter.
/// </summary>
/// <param name="actionContext">The action context.</param>
/// <param name="cancellationToken">The cancellation token associated with the filter.</param>
/// <param name="continuation">The continuation.</param>
/// <returns>
/// The authorization filter to synchronize.
/// </returns>
public Task<HttpResponseMessage> ExecuteAuthorizationFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func<Task<HttpResponseMessage>> continuation)
{
HttpRequestMessage request = actionContext.Request;
try
{
if (IsAjaxRequest(request))
{
ValidateRequestHeader(request);
}
else
{
AntiForgery.Validate();
}
}
catch (Exception)
{
//LogManager.GetCurrentClassLogger().Warn("Anti-XSRF Validation Failed", ex);
actionContext.Response = new HttpResponseMessage
{
StatusCode = HttpStatusCode.Forbidden,
RequestMessage = actionContext.ControllerContext.Request
};
return FromResult(actionContext.Response);
}
return continuation();
}示例8: Sum
private static Int32 Sum(CancellationToken cancelToken, Int32 n) {
Int32 sum = 0;
for (; n > 0; n--){
cancelToken.ThrowIfCancellationRequested();
checked{ sum += n; }
}
return sum;
}示例9: SendAsync
protected override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
{
request.Headers.Add("Cookie", this.cookie);
request.Headers.Add("X-Unity-Version", GameInfo.instance.UV);
request.Headers.Add("charset", "UTF-8");
request.Headers.Add("UserAgent", GameInfo.instance.UA);
request.Headers.Add("Connection", "Keep-Alive");
return base.SendAsync(request, cancellationToken);
}示例10: DownloadAndCountBytesAsync
// http://blogs.msdn.com/b/lucian/archive/2012/12/08/await-httpclient-getstringasync-and-cancellation.aspx
public static async Task<int> DownloadAndCountBytesAsync(string url, CancellationToken token = new CancellationToken())
{
await Task.Delay(TimeSpan.FromSeconds(3), token).ConfigureAwait(false);
var client = new HttpClient();
using (var response = await client.GetAsync(url, token).ConfigureAwait(false))
{
var data = await response.Content.ReadAsByteArrayAsync().ConfigureAwait(false);
return data.Length;
}
}示例11: CancellationGuard
/// <summary>
/// Registers a callback for the <paramref name="cancellationToken"/> that blocks calls to <see cref="CancellationTokenSource.Cancel()"/> until <see cref="Dispose"/> has been called.
/// </summary>
/// <param name="cancellationToken">Used to signal cancellation requests.</param>
public CancellationGuard(CancellationToken cancellationToken)
{
_registration = cancellationToken.Register(
#if NET40 || NET45
_tcs.Task.Wait
#else
() => _event.WaitOne()
#endif
);
}示例12: EnsureOperationCanceledExceptionThrown
private static void EnsureOperationCanceledExceptionThrown(Action action, CancellationToken token, string message)
{
OperationCanceledException operationCanceledEx =
Assert.Throws<OperationCanceledException>(action);
if (operationCanceledEx.CancellationToken != token)
{
Assert.True(false, string.Format("ManualResetEventCancellationTests: Failed. " + message));
}
}示例13: SendAsync
public override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken token)
{
var mockResponseMessage = new HttpResponseMessage()
{
//Mock content contains json of two face results
Content = new StringContent("[\n {\n \"faceRectangle\": {\n \"left\": 68,\n \"top\": 97,\n \"width\": 64,\n \"height\": 97\n },\n \"scores\": {\n \"anger\": 0.00300731952,\n \"contempt\": 5.14648448E-08,\n \"disgust\": 9.180124E-06,\n \"fear\": 0.0001912825,\n \"happiness\": 0.9875571,\n \"neutral\": 0.0009861537,\n \"sadness\": 1.889955E-05,\n \"surprise\": 0.008229999\n }\n },\n{\n \"faceRectangle\": {\n \"left\": 68,\n \"top\": 97,\n \"width\": 64,\n \"height\": 97\n },\n \"scores\": {\n \"anger\": 0.00300731952,\n \"contempt\": 5.14648448E-08,\n \"disgust\": 9.180124E-06,\n \"fear\": 0.0001912825,\n \"happiness\": 0.9875571,\n \"neutral\": 0.0009861537,\n \"sadness\": 1.889955E-05,\n \"surprise\": 0.008229999\n }\n }\n]"),
StatusCode = HttpStatusCode.OK
};
return Task.FromResult(mockResponseMessage);
}示例14: DownloadAsStringAsync
/// <summary>
/// Downloads a file as a string.
/// </summary>
/// <param name="address">File URL</param>
/// <param name="cancellationToken">Optional cancellation token</param>
public static Task<string> DownloadAsStringAsync(string address, CancellationToken cancellationToken = new CancellationToken())
{
return Task.Factory.StartNew(
delegate
{
using (var webClient = new WebClient())
{
return webClient.DownloadString(address);
}
}, cancellationToken);
}示例15: MultiplyParallel
public static void MultiplyParallel(CancellationToken cancellationToken, Matrix src1, Matrix src2, Matrix dst)
{
if (src1._size != src2._size || src1._size != dst._size) throw new ArgumentOutOfRangeException("src1");
int N = src1._size;
matrix_mult_parallel(
cancellationToken,
N, N, N,
src1._dataPtr, 0, 0, N,
src2._dataPtr, 0, 0, N,
dst._dataPtr, 0, 0, N);
}