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60 lines
2.0 KiB
60 lines
2.0 KiB
Imports System.Threading
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Imports System.Threading.Tasks
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Imports Rpc.MessageProtocol
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Namespace Rpc.BindingProtocols.TaskBuilders
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''' <summary>
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''' operations of binding protocols
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''' </summary>
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Public MustInherit Class BaseTaskBuilder
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Private Const Program As UInteger = 100000UI
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Private _conn As IRpcClient
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Private _attachedToParent As Boolean
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Private _token As CancellationToken
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Friend Sub New(ByVal conn As IRpcClient, ByVal token As CancellationToken, ByVal attachedToParent As Boolean)
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_conn = conn
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_attachedToParent = attachedToParent
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_token = token
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End Sub
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''' <summary>
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''' Gets the version of protocol
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''' </summary>
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Protected MustOverride ReadOnly Property Version As UInteger
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Private Function CreateHeader(ByVal procNum As UInteger) As call_body
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Return New call_body() With {
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.rpcvers = 2,
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.prog = Program,
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.proc = procNum,
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.vers = Version,
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.cred = opaque_auth.None,
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.verf = opaque_auth.None
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}
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End Function
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''' <summary>
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''' Creates the task of request.
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''' </summary>
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''' <returns>
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''' The queued task.
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''' </returns>
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''' <paramname="proc">
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''' procedure number
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''' </param>
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''' <paramname="args">
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''' instance of arguments of request
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''' </param>
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''' <typeparamname="TReq">
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''' type of request
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''' </typeparam>
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''' <typeparamname="TResp">
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''' type of response
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''' </typeparam>
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Protected Function CreateTask(Of TReq, TResp)(ByVal proc As UInteger, ByVal args As TReq) As Task(Of TResp)
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Return _conn.CreateTask(Of TReq, TResp)(CreateHeader(proc), args, If(_attachedToParent, TaskCreationOptions.AttachedToParent, TaskCreationOptions.None), _token)
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End Function
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End Class
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End Namespace
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