You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
3.9 KiB
109 lines
3.9 KiB
Namespace TaskHost
|
|
|
|
Public Class MemoryHash : Implements IDisposable
|
|
|
|
ReadOnly __innerHash As New SortedDictionary(Of Long, Object)
|
|
ReadOnly __innerAddr As New SortedDictionary(Of Long, ObjectAddress)
|
|
|
|
Public Function GetObject(addr As Long) As Object
|
|
If __innerHash.ContainsKey(addr) Then
|
|
Return __innerHash(addr)
|
|
Else
|
|
Throw New NullReferenceException($"Address {addr} point to a invalid memory location!")
|
|
End If
|
|
End Function
|
|
|
|
Public Function GetObject(addr As ObjectAddress) As Object
|
|
Return GetObject(addr.ReferenceAddress)
|
|
End Function
|
|
|
|
Public Function IsNull(p As Long) As Boolean
|
|
Return Not __innerHash.ContainsKey(p)
|
|
End Function
|
|
|
|
Public Function SetObject(obj As Object) As ObjectAddress
|
|
Dim addr As ObjectAddress = ObjectAddress.AddressOf(obj)
|
|
Dim p As Long = addr.ReferenceAddress
|
|
|
|
If __innerHash.ContainsKey(p) Then ' 将属性值复制给当前内存之中的对象
|
|
Call ShadowsCopy.ShadowsCopy(obj, __innerHash(p), Me)
|
|
Else
|
|
Call __innerHash.Add(p, obj)
|
|
Call __innerAddr.Add(p, addr)
|
|
End If
|
|
|
|
Return addr
|
|
End Function
|
|
|
|
Public Function GetAddress(addr As Long) As ObjectAddress
|
|
If __innerAddr.ContainsKey(addr) Then
|
|
Return __innerAddr(addr)
|
|
Else
|
|
Throw New NullReferenceException($"Address {addr} point to a invalid memory location!")
|
|
End If
|
|
End Function
|
|
|
|
''' <summary>
|
|
''' Gets the object reference type.
|
|
''' </summary>
|
|
''' <param name="addr"></param>
|
|
''' <returns></returns>
|
|
Public Overloads Function [GetType](addr As Long) As Type
|
|
Dim p As ObjectAddress = GetAddress(addr)
|
|
Return System.Type.GetType(p.TypeId)
|
|
End Function
|
|
|
|
''' <summary>
|
|
''' 按照内存指针销毁对象
|
|
''' </summary>
|
|
''' <param name="p"></param>
|
|
''' <returns></returns>
|
|
Public Function Destroy(p As Long) As Boolean
|
|
If Not __innerHash.ContainsKey(p) Then
|
|
Return False
|
|
End If
|
|
|
|
Dim obj As Object = __innerHash(p)
|
|
Call __innerHash.Remove(p)
|
|
Call GC.SuppressFinalize(obj)
|
|
|
|
Dim addr As ObjectAddress = __innerAddr(p)
|
|
Call __innerAddr.Remove(p)
|
|
Call addr.Free
|
|
|
|
Return True
|
|
End Function
|
|
|
|
#Region "IDisposable Support"
|
|
Private disposedValue As Boolean ' To detect redundant calls
|
|
|
|
' IDisposable
|
|
Protected Overridable Sub Dispose(disposing As Boolean)
|
|
If Not Me.disposedValue Then
|
|
If disposing Then
|
|
' TODO: dispose managed state (managed objects).
|
|
End If
|
|
|
|
' TODO: free unmanaged resources (unmanaged objects) and override Finalize() below.
|
|
' TODO: set large fields to null.
|
|
End If
|
|
Me.disposedValue = True
|
|
End Sub
|
|
|
|
' TODO: override Finalize() only if Dispose(disposing As Boolean) above has code to free unmanaged resources.
|
|
'Protected Overrides Sub Finalize()
|
|
' ' Do not change this code. Put cleanup code in Dispose(disposing As Boolean) above.
|
|
' Dispose(False)
|
|
' MyBase.Finalize()
|
|
'End Sub
|
|
|
|
' This code added by Visual Basic to correctly implement the disposable pattern.
|
|
Public Sub Dispose() Implements IDisposable.Dispose
|
|
' Do not change this code. Put cleanup code in Dispose(disposing As Boolean) above.
|
|
Dispose(True)
|
|
' TODO: uncomment the following line if Finalize() is overridden above.
|
|
' GC.SuppressFinalize(Me)
|
|
End Sub
|
|
#End Region
|
|
End Class
|
|
End Namespace |