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Revert "Improvements in engine process exit and termination (#145)"
This reverts commit 0743675.
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80 changes: 80 additions & 0 deletions
80
source/nanoFramework.Tools.DebugLibrary.Shared/WireProtocol/EngineState.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| // | ||
| // Copyright (c) 2017 The nanoFramework project contributors | ||
| // Portions Copyright (c) Microsoft Corporation. All rights reserved. | ||
| // See LICENSE file in the project root for full license information. | ||
| // | ||
|
|
||
| using System; | ||
|
|
||
| namespace nanoFramework.Tools.Debugger | ||
| { | ||
| internal class EngineState | ||
| { | ||
| public enum Value | ||
| { | ||
| NotStarted, | ||
| Starting, | ||
| Started, | ||
| Stopping, | ||
| Resume, | ||
| Stopped, | ||
| Disposing, | ||
| Disposed | ||
| } | ||
|
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| private Value _value; | ||
| public object SyncObject { get; private set; } | ||
|
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| public EngineState(object syncObject) | ||
| { | ||
| _value = Value.NotStarted; | ||
| SyncObject = syncObject; | ||
| } | ||
|
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| public Value GetValue() | ||
| { | ||
| return _value; | ||
| } | ||
|
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| public bool SetValue(Value value) | ||
| { | ||
| return SetValue(value, false); | ||
| } | ||
|
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| public bool SetValue(Value value, bool fThrow) | ||
| { | ||
| lock (SyncObject) | ||
| { | ||
| if (_value == Value.Stopping && value == Value.Resume) | ||
| { | ||
| _value = Value.Started; | ||
| return true; | ||
| } | ||
| else if (_value < value) | ||
| { | ||
| _value = value; | ||
| return true; | ||
| } | ||
| else | ||
| { | ||
| if (fThrow) | ||
| { | ||
| throw new Exception(string.Format("Cannot set State to {0}", value)); | ||
| } | ||
|
|
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| return false; | ||
| } | ||
| } | ||
| } | ||
|
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| public bool IsRunning | ||
| { | ||
| get | ||
| { | ||
| Value val = _value; | ||
|
|
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| return val == Value.Starting || val == Value.Started; | ||
| } | ||
| } | ||
| } | ||
| } |
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