RateLimiter.AcquireAsync(Int32, CancellationToken) 方法

定义

命名空间:

System.Threading.RateLimiting

程序集:

System.Threading.RateLimiting.dll

包:

Microsoft.AspNetCore.App.Ref v9.0.0

等待请求的许可证可用或无法再获得许可证。

public System.Threading.Tasks.ValueTask<System.Threading.RateLimiting.RateLimitLease> AcquireAsync (int permitCount = 1, System.Threading.CancellationToken cancellationToken = default);

member this.AcquireAsync : int * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Threading.RateLimiting.RateLimitLease>

Public Function AcquireAsync (Optional permitCount As Integer = 1, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of RateLimitLease)

参数

permitCount

Int32

尝试和获取的许可证数。

cancellationToken

CancellationToken

可选令牌，用于取消排队的许可证请求。

返回

ValueTask<RateLimitLease>

获取请求的许可证或拒绝请求的许可证时完成的任务。

例外

ArgumentOutOfRangeException

注解

设置为 permitCount 0 以等待许可证补给。