mcs/class/referencesource/mscorlib/system/runtime/serialization/streamingcontext.cs

   1 // ==++==
   2 //
   3 //   Copyright (c) Microsoft Corporation.  All rights reserved.
   4 //
   5 // ==--==
   6 /*============================================================
   7 **
   8 ** ValueType: StreamingContext
   9 **
  10 **
  11 ** Purpose: A value type indicating the source or destination of our streaming.
  12 **
  13 **
  14 ===========================================================*/
  15 namespace System.Runtime.Serialization {
  16
  17     using System.Runtime.Remoting;
  18     using System;
  19     [Serializable]
  20 [System.Runtime.InteropServices.ComVisible(true)]
  21     public struct StreamingContext {
  22         internal Object m_additionalContext;
  23         internal StreamingContextStates m_state;
  24
  25         public StreamingContext(StreamingContextStates state)
  26             : this (state, null) {
  27         }
  28
  29         public StreamingContext(StreamingContextStates state, Object additional) {
  30             m_state = state;
  31             m_additionalContext = additional;
  32         }
  33
  34         public Object Context {
  35             get { return m_additionalContext; }
  36         }
  37
  38         public override bool Equals(Object obj) {
  39             if (!(obj is StreamingContext)) {
  40                 return false;
  41             }
  42             if (((StreamingContext)obj).m_additionalContext == m_additionalContext &&
  43                 ((StreamingContext)obj).m_state == m_state) {
  44                 return true;
  45             }
  46             return false;
  47         }
  48
  49         public override int GetHashCode() {
  50             return (int)m_state;
  51         }
  52
  53         public StreamingContextStates State {
  54             get { return m_state; }
  55         }
  56     }
  57
  58     // **********************************************************
  59     // Keep these in sync with the version in vm\runtimehandles.h
  60     // **********************************************************
  61 [Serializable]
  62 [Flags]
  63 [System.Runtime.InteropServices.ComVisible(true)]
  64     public enum StreamingContextStates {
  65         CrossProcess=0x01,
  66         CrossMachine=0x02,
  67         File        =0x04,
  68         Persistence =0x08,
  69         Remoting    =0x10,
  70         Other       =0x20,
  71         Clone       =0x40,
  72         CrossAppDomain =0x80,
  73         All         =0xFF,
  74     }
  75 }