Question

我需要将数据从一个进程发送到另一个进程。制约因素：

发件人进程是非常昂贵的电话。它需要使用vbscipt完成。对于发件人进程，此数据传输是一项额外的工作。它不应受此功能的影响。在4-5分钟内，发送方进程中大约有1000个线程。

更快的IPC很重要。如果它可以异步完成，它会更好。我读到了命名管道。是否可以使用vbscript打开命名管道。考虑到上述约束，还有其他可能的方法。

Answer 1

使用命名管道可能是本机VBScript的唯一选择。您可以通过使用其他语言编写COM对象来访问任何其他IPC方法。

命名管道可以像文件一样写入，因此您可以使用FileSystemObject从命名管道打开和读取/写入。打开命名管道的格式是使用格式\\\\.\pipe\PipeName（将PipeName替换为管道的实际名称）。

所以要写入VBScript中的命名管道：

Set fs = CreateObject("Scripting.FileSystemObject")
Set a = fs.CreateTextFile("\\.\pipe\PipeName", True)
a.WriteLine("This is a test.")
a.Close

Answer 2

Option Explicit

Dim g_receivedCallback

If WScript.Arguments.Named.Exists("NEW") Then
    RunSecondInstance
Else
    RunFirstInstance
End If

Sub RunSecondInstance()
    Dim oSa, oWindow, oData, oCallback
    ' Search for the window
    Set oSa = CreateObject("Shell.Application")
    For Each oWindow In oSa.Windows
        If TypeName(oWindow.Document) = "HTMLDocument" Then
            If InStr(oWindow.Document.Title, "IPC Window") > 0 Then
                ' Get the data object, set a property and callback a method
                Set oData = oWindow.GetProperty ("IPCData") 
                Set oCallback = oData.Callback
                oData.Value = "Success!"
                Call oCallback
            End If
        End If
    Next
End Sub

Sub RunFirstInstance()

    Dim oData, oIe, oWs

    ' Create a object to pass to a other script
    Set oData = New IPCData
    ' Set a property to a callback method
    Set oData.Callback = GetRef("MyCallback")

    ' Create a window and store the data in the window
    Set oIe = CreateObject("InternetExplorer.Application")
    oIe.Navigate "about:blank"
    Do Until oIe.ReadyState = 4 : WScript.Sleep 5 : Loop
    oIe.Document.Title = "IPC Window"
    oIe.PutProperty "IPCData", oData

    ' Run second script instance
    Set oWs = CreateObject("WScript.Shell")
    oWs.Run "WSCRIPT.EXE """ & WScript.ScriptFullName & """ /NEW"

    ' Wait for callback from second script
    Do  Until g_receivedCallback = True : WScript.Sleep 5 : Loop

    ' Display received data
    MsgBox oData.Value

    ' Close ie
    oIe.Quit

End Sub

Sub MyCallback()
    g_receivedCallback = True
End Sub

Class IPCData

    Private m_callback
    Public Property Get Callback()
        Set Callback = m_callback
    End Property
    Public Property Set Callback(ByVal v)
        Set m_callback = v
    End Property

    Private m_value
    Public Property Get Value()
        If IsObject(m_value) Then
            Set Value = m_value
        Else
            Value = m_value
        End If
    End Property
    Public Property Let Value(ByVal v)
        m_value = v
    End Property
    Public Property Set Value(ByVal v)
        Set m_value = v
    End Property

End Class

使用vbscript进行进程间通信

2 个答案: