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authorTedd Hansen2007-08-18 22:33:06 +0000
committerTedd Hansen2007-08-18 22:33:06 +0000
commit1ae73931da62409a36b9c448ac35537dfe3745eb (patch)
tree1677b745ddfebe19d2d91eb05960a76455daf30e /OpenSim/Region
parentScripts are working again. Scripts are now loaded into limited AppDomains (no... (diff)
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Added (theoretical) AppDomain cleanup code.
Diffstat (limited to 'OpenSim/Region')
-rw-r--r--OpenSim/Region/ScriptEngine/DotNetEngine/AppDomainManager.cs106
1 files changed, 89 insertions, 17 deletions
diff --git a/OpenSim/Region/ScriptEngine/DotNetEngine/AppDomainManager.cs b/OpenSim/Region/ScriptEngine/DotNetEngine/AppDomainManager.cs
index 7941ea2..f80ebac 100644
--- a/OpenSim/Region/ScriptEngine/DotNetEngine/AppDomainManager.cs
+++ b/OpenSim/Region/ScriptEngine/DotNetEngine/AppDomainManager.cs
@@ -10,7 +10,10 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
10{ 10{
11 public class AppDomainManager 11 public class AppDomainManager
12 { 12 {
13 private int MaxScriptsPerAppDomain = 10; 13 private int MaxScriptsPerAppDomain = 1;
14 /// <summary>
15 /// List of all AppDomains
16 /// </summary>
14 private List<AppDomainStructure> AppDomains = new List<AppDomainStructure>(); 17 private List<AppDomainStructure> AppDomains = new List<AppDomainStructure>();
15 private struct AppDomainStructure 18 private struct AppDomainStructure
16 { 19 {
@@ -27,8 +30,12 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
27 /// </summary> 30 /// </summary>
28 public int ScriptsWaitingUnload; 31 public int ScriptsWaitingUnload;
29 } 32 }
33 /// <summary>
34 /// Current AppDomain
35 /// </summary>
30 private AppDomainStructure CurrentAD; 36 private AppDomainStructure CurrentAD;
31 private object GetLock = new object(); 37 private object GetLock = new object(); // Mutex
38 private object FreeLock = new object(); // Mutex
32 39
33 private ScriptEngine m_scriptEngine; 40 private ScriptEngine m_scriptEngine;
34 public AppDomainManager(ScriptEngine scriptEngine) 41 public AppDomainManager(ScriptEngine scriptEngine)
@@ -36,17 +43,28 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
36 m_scriptEngine = scriptEngine; 43 m_scriptEngine = scriptEngine;
37 } 44 }
38 45
46 /// <summary>
47 /// Find a free AppDomain, creating one if necessary
48 /// </summary>
49 /// <returns>Free AppDomain</returns>
39 internal AppDomain GetFreeAppDomain() 50 internal AppDomain GetFreeAppDomain()
40 { 51 {
52 FreeAppDomains();
41 lock(GetLock) { 53 lock(GetLock) {
42 // No current or current full? 54 // Current full?
43 if (CurrentAD.CurrentAppDomain == null || CurrentAD.ScriptsLoaded >= MaxScriptsPerAppDomain) 55 if (CurrentAD.ScriptsLoaded >= MaxScriptsPerAppDomain)
56 {
57 AppDomains.Add(CurrentAD);
58 CurrentAD = new AppDomainStructure();
59 }
60 // No current
61 if (CurrentAD.CurrentAppDomain == null)
44 { 62 {
45 // Create a new current AppDomain 63 // Create a new current AppDomain
46 CurrentAD = new AppDomainStructure(); 64 CurrentAD = new AppDomainStructure();
47 CurrentAD.ScriptsWaitingUnload = 0; // to avoid compile warning for not in use 65 CurrentAD.ScriptsWaitingUnload = 0; // to avoid compile warning for not in use
48 CurrentAD.CurrentAppDomain = PrepareNewAppDomain(); 66 CurrentAD.CurrentAppDomain = PrepareNewAppDomain();
49 AppDomains.Add(CurrentAD); 67
50 68
51 } 69 }
52 70
@@ -58,6 +76,10 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
58 } 76 }
59 77
60 private int AppDomainNameCount; 78 private int AppDomainNameCount;
79 /// <summary>
80 /// Create and prepare a new AppDomain for scripts
81 /// </summary>
82 /// <returns>The new AppDomain</returns>
61 private AppDomain PrepareNewAppDomain() 83 private AppDomain PrepareNewAppDomain()
62 { 84 {
63 // Create and prepare a new AppDomain 85 // Create and prepare a new AppDomain
@@ -80,20 +102,20 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
80 AppDomain.CurrentDomain.SetupInformation.ConfigurationFile; 102 AppDomain.CurrentDomain.SetupInformation.ConfigurationFile;
81 103
82 AppDomain AD = AppDomain.CreateDomain("ScriptAppDomain_" + AppDomainNameCount, null, ads); 104 AppDomain AD = AppDomain.CreateDomain("ScriptAppDomain_" + AppDomainNameCount, null, ads);
83 foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies()) 105 //foreach (Assembly a in AppDomain.CurrentDomain.GetAssemblies())
84 { 106 //{
85 //Console.WriteLine("Loading: " + a.GetName(true)); 107 // //Console.WriteLine("Loading: " + a.GetName(true));
86 try 108 // try
87 { 109 // {
88 //AD.Load(a.GetName(true)); 110 // //AD.Load(a.GetName(true));
89 111
90 } 112 // }
91 catch (Exception e) 113 // catch (Exception e)
92 { 114 // {
93 //Console.WriteLine("FAILED load"); 115 // //Console.WriteLine("FAILED load");
94 } 116 // }
95 117
96 } 118 //}
97 119
98 //Console.WriteLine("Assembly file: " + this.GetType().Assembly.CodeBase); 120 //Console.WriteLine("Assembly file: " + this.GetType().Assembly.CodeBase);
99 //Console.WriteLine("Assembly name: " + this.GetType().ToString()); 121 //Console.WriteLine("Assembly name: " + this.GetType().ToString());
@@ -106,5 +128,55 @@ namespace OpenSim.Region.ScriptEngine.DotNetEngine
106 128
107 } 129 }
108 130
131 /// <summary>
132 /// Unload appdomains that are full and have only dead scripts
133 /// </summary>
134 private void FreeAppDomains()
135 {
136 lock (FreeLock)
137 {
138 foreach (AppDomainStructure ads in new System.Collections.ArrayList(AppDomains))
139 {
140 if (ads.CurrentAppDomain != CurrentAD.CurrentAppDomain)
141 {
142 // Not current AppDomain
143 if (ads.ScriptsLoaded == ads.ScriptsWaitingUnload)
144 {
145 AppDomains.Remove(ads);
146 AppDomain.Unload(ads.CurrentAppDomain);
147 }
148 }
149 } // foreach
150 } // lock
151 }
152
153 /// <summary>
154 /// Increase "dead script" counter for an AppDomain
155 /// </summary>
156 /// <param name="ad"></param>
157 [Obsolete("Needs optimizing!!!")]
158 public void StopScriptInAppDomain(AppDomain ad)
159 {
160 lock (FreeLock)
161 {
162 if (CurrentAD.CurrentAppDomain == ad)
163 {
164 CurrentAD.ScriptsWaitingUnload++;
165 return;
166 }
167
168 foreach (AppDomainStructure ads in new System.Collections.ArrayList(AppDomains))
169 {
170 if (ads.CurrentAppDomain == ad)
171 {
172 AppDomainStructure ads2 = ads;
173 ads2.ScriptsWaitingUnload++;
174 AppDomains.Remove(ads);
175 AppDomains.Add(ads2);
176 return;
177 }
178 } // foreach
179 } // lock
180 }
109 } 181 }
110} 182}