| | | 1 | | // Licensed to the .NET Foundation under one or more agreements. |
| | | 2 | | // The .NET Foundation licenses this file to you under the MIT license. |
| | | 3 | | |
| | | 4 | | using System; |
| | | 5 | | using System.Diagnostics; |
| | | 6 | | using System.Threading; |
| | | 7 | | using System.Threading.Tasks; |
| | | 8 | | using CoreWCF.Channels; |
| | | 9 | | |
| | | 10 | | namespace CoreWCF.Dispatcher |
| | | 11 | | { |
| | | 12 | | internal interface IInstanceContextManager |
| | | 13 | | { |
| | | 14 | | void Abort(); |
| | | 15 | | void Add(InstanceContext instanceContext); |
| | | 16 | | Task CloseAsync(CancellationToken token); |
| | | 17 | | Task CloseInputAsync(CancellationToken token); |
| | | 18 | | bool Remove(InstanceContext instanceContext); |
| | | 19 | | InstanceContext[] ToArray(); |
| | | 20 | | } |
| | | 21 | | |
| | | 22 | | internal class InstanceContextManager : LifetimeManager, IInstanceContextManager |
| | | 23 | | { |
| | | 24 | | private int _firstFreeIndex; |
| | | 25 | | private Item[] _items; |
| | | 26 | | |
| | | 27 | | public InstanceContextManager(object mutex) |
| | 591 | 28 | | : base(mutex) |
| | | 29 | | { |
| | 591 | 30 | | } |
| | | 31 | | |
| | | 32 | | public void Add(InstanceContext instanceContext) |
| | | 33 | | { |
| | 2463 | 34 | | bool added = false; |
| | | 35 | | |
| | 2463 | 36 | | lock (ThisLock) |
| | | 37 | | { |
| | 2463 | 38 | | if (State == LifetimeState.Opened) |
| | | 39 | | { |
| | 2463 | 40 | | if (instanceContext.InstanceContextManagerIndex != 0) |
| | | 41 | | { |
| | 0 | 42 | | return; |
| | | 43 | | } |
| | | 44 | | |
| | 2463 | 45 | | if (_firstFreeIndex == 0) |
| | | 46 | | { |
| | 505 | 47 | | GrowItems(); |
| | | 48 | | } |
| | | 49 | | |
| | 2463 | 50 | | AddItem(instanceContext); |
| | 2463 | 51 | | base.IncrementBusyCountWithoutLock(); |
| | 2463 | 52 | | added = true; |
| | | 53 | | } |
| | 2463 | 54 | | } |
| | | 55 | | |
| | 2463 | 56 | | if (!added) |
| | | 57 | | { |
| | 0 | 58 | | instanceContext.Abort(); |
| | 0 | 59 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ObjectDisposedException(GetType().ToString |
| | | 60 | | } |
| | 2463 | 61 | | } |
| | | 62 | | |
| | | 63 | | private void AddItem(InstanceContext instanceContext) |
| | | 64 | | { |
| | 2648 | 65 | | int index = _firstFreeIndex; |
| | 2648 | 66 | | _firstFreeIndex = _items[index].nextFreeIndex; |
| | 2648 | 67 | | _items[index].instanceContext = instanceContext; |
| | 2648 | 68 | | instanceContext.InstanceContextManagerIndex = index; |
| | 2648 | 69 | | } |
| | | 70 | | |
| | | 71 | | private async Task CloseInitiateAsync(CancellationToken token) |
| | | 72 | | { |
| | 0 | 73 | | InstanceContext[] instances = ToArray(); |
| | 0 | 74 | | for (int index = 0; index < instances.Length; index++) |
| | | 75 | | { |
| | 0 | 76 | | InstanceContext instance = instances[index]; |
| | | 77 | | try |
| | | 78 | | { |
| | 0 | 79 | | if (instance.State == CommunicationState.Opened) |
| | | 80 | | { |
| | 0 | 81 | | Task result = instance.CloseAsync(token); |
| | 0 | 82 | | if (!result.IsCompleted) |
| | | 83 | | { |
| | 0 | 84 | | ContinueCloseInstanceContext(result); |
| | 0 | 85 | | continue; |
| | | 86 | | } |
| | | 87 | | |
| | 0 | 88 | | await result; |
| | | 89 | | } |
| | | 90 | | else |
| | | 91 | | { |
| | 0 | 92 | | instance.Abort(); |
| | | 93 | | } |
| | 0 | 94 | | } |
| | | 95 | | catch (ObjectDisposedException e) |
| | | 96 | | { |
| | 0 | 97 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 98 | | } |
| | | 99 | | catch (InvalidOperationException e) |
| | | 100 | | { |
| | 0 | 101 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 102 | | } |
| | | 103 | | catch (CommunicationException e) |
| | | 104 | | { |
| | 0 | 105 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 106 | | } |
| | | 107 | | catch (TimeoutException e) |
| | | 108 | | { |
| | | 109 | | //if (TD.CloseTimeoutIsEnabled()) |
| | | 110 | | //{ |
| | | 111 | | // TD.CloseTimeout(e.Message); |
| | | 112 | | //} |
| | 0 | 113 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 114 | | } |
| | | 115 | | } |
| | 0 | 116 | | } |
| | | 117 | | |
| | | 118 | | public async Task CloseInputAsync(CancellationToken token) |
| | | 119 | | { |
| | 0 | 120 | | InstanceContext[] instances = ToArray(); |
| | 0 | 121 | | for (int index = 0; index < instances.Length; index++) |
| | | 122 | | { |
| | 0 | 123 | | await instances[index].CloseInputAsync(token); |
| | | 124 | | } |
| | 0 | 125 | | } |
| | | 126 | | |
| | | 127 | | private static async void ContinueCloseInstanceContext(Task result) |
| | | 128 | | { |
| | | 129 | | try |
| | | 130 | | { |
| | 0 | 131 | | await result; |
| | 0 | 132 | | } |
| | | 133 | | catch (ObjectDisposedException e) |
| | | 134 | | { |
| | 0 | 135 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 136 | | } |
| | | 137 | | catch (InvalidOperationException e) |
| | | 138 | | { |
| | 0 | 139 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 140 | | } |
| | | 141 | | catch (CommunicationException e) |
| | | 142 | | { |
| | 0 | 143 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 144 | | } |
| | | 145 | | catch (TimeoutException e) |
| | | 146 | | { |
| | | 147 | | //if (TD.CloseTimeoutIsEnabled()) |
| | | 148 | | //{ |
| | | 149 | | // TD.CloseTimeout(e.Message); |
| | | 150 | | //} |
| | 0 | 151 | | DiagnosticUtility.TraceHandledException(e, TraceEventType.Information); |
| | 0 | 152 | | } |
| | 0 | 153 | | } |
| | | 154 | | |
| | | 155 | | private void GrowItems() |
| | | 156 | | { |
| | 505 | 157 | | Item[] existingItems = _items; |
| | 505 | 158 | | if (existingItems != null) |
| | | 159 | | { |
| | 15 | 160 | | InitItems(existingItems.Length * 2); |
| | 400 | 161 | | for (int i = 1; i < existingItems.Length; i++) |
| | | 162 | | { |
| | 185 | 163 | | AddItem(existingItems[i].instanceContext); |
| | | 164 | | } |
| | | 165 | | } |
| | | 166 | | else |
| | | 167 | | { |
| | 490 | 168 | | InitItems(4); |
| | | 169 | | } |
| | 490 | 170 | | } |
| | | 171 | | |
| | | 172 | | private void InitItems(int count) |
| | | 173 | | { |
| | 505 | 174 | | _items = new Item[count]; |
| | 3710 | 175 | | for (int i = count - 2; i > 0; i--) |
| | | 176 | | { |
| | 1350 | 177 | | _items[i].nextFreeIndex = i + 1; |
| | | 178 | | } |
| | 505 | 179 | | _firstFreeIndex = 1; |
| | 505 | 180 | | } |
| | | 181 | | |
| | | 182 | | protected override void OnAbort() |
| | | 183 | | { |
| | 0 | 184 | | InstanceContext[] instances = ToArray(); |
| | 0 | 185 | | for (int index = 0; index < instances.Length; index++) |
| | | 186 | | { |
| | 0 | 187 | | instances[index].Abort(); |
| | | 188 | | } |
| | | 189 | | |
| | 0 | 190 | | base.OnAbort(); |
| | 0 | 191 | | } |
| | | 192 | | |
| | | 193 | | protected override async Task OnCloseAsync(CancellationToken token) |
| | | 194 | | { |
| | 0 | 195 | | await CloseInitiateAsync(token); |
| | 0 | 196 | | await base.OnCloseAsync(token); |
| | 0 | 197 | | } |
| | | 198 | | |
| | | 199 | | public bool Remove(InstanceContext instanceContext) |
| | | 200 | | { |
| | 2390 | 201 | | if (instanceContext == null) |
| | | 202 | | { |
| | 0 | 203 | | throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull(nameof(instanceContext)); |
| | | 204 | | } |
| | | 205 | | |
| | 2390 | 206 | | lock (ThisLock) |
| | | 207 | | { |
| | 2390 | 208 | | int index = instanceContext.InstanceContextManagerIndex; |
| | 2390 | 209 | | if (index == 0) |
| | | 210 | | { |
| | 0 | 211 | | return false; |
| | | 212 | | } |
| | | 213 | | |
| | 2390 | 214 | | instanceContext.InstanceContextManagerIndex = 0; |
| | 2390 | 215 | | _items[index].nextFreeIndex = _firstFreeIndex; |
| | 2390 | 216 | | _items[index].instanceContext = null; |
| | 2390 | 217 | | _firstFreeIndex = index; |
| | 2390 | 218 | | } |
| | | 219 | | |
| | 2390 | 220 | | DecrementBusyCount(); |
| | 2390 | 221 | | return true; |
| | 0 | 222 | | } |
| | | 223 | | |
| | | 224 | | public InstanceContext[] ToArray() |
| | | 225 | | { |
| | 0 | 226 | | if (_items == null) |
| | | 227 | | { |
| | 0 | 228 | | return Array.Empty<InstanceContext>(); |
| | | 229 | | } |
| | | 230 | | |
| | 0 | 231 | | lock (ThisLock) |
| | | 232 | | { |
| | 0 | 233 | | int count = 0; |
| | 0 | 234 | | for (int i = 1; i < _items.Length; i++) |
| | | 235 | | { |
| | 0 | 236 | | if (_items[i].instanceContext != null) |
| | | 237 | | { |
| | 0 | 238 | | count++; |
| | | 239 | | } |
| | | 240 | | } |
| | | 241 | | |
| | 0 | 242 | | if (count == 0) |
| | | 243 | | { |
| | 0 | 244 | | return Array.Empty<InstanceContext>(); |
| | | 245 | | } |
| | | 246 | | |
| | 0 | 247 | | InstanceContext[] array = new InstanceContext[count]; |
| | 0 | 248 | | count = 0; |
| | 0 | 249 | | for (int i = 1; i < _items.Length; i++) |
| | | 250 | | { |
| | 0 | 251 | | InstanceContext instanceContext = _items[i].instanceContext; |
| | 0 | 252 | | if (instanceContext != null) |
| | | 253 | | { |
| | 0 | 254 | | array[count++] = instanceContext; |
| | | 255 | | } |
| | | 256 | | } |
| | | 257 | | |
| | 0 | 258 | | return array; |
| | | 259 | | } |
| | 0 | 260 | | } |
| | | 261 | | |
| | | 262 | | private struct Item |
| | | 263 | | { |
| | | 264 | | public int nextFreeIndex; |
| | | 265 | | public InstanceContext instanceContext; |
| | | 266 | | } |
| | | 267 | | } |
| | | 268 | | } |