Fix C# debug adapter failure in v2.3.2: singleton pattern + mutex error handling

vscode-dotnet-runtime-extension/src/extension.ts

@@ -66,12 +66,14 @@ import
     IIssueContext,
     InstallationValidator,
     InstallRecord,
+    InstallTrackerSingleton,
     InvalidUninstallRequest,
     IUtilityContext,
     JsonInstaller,
     LinuxVersionResolver,
     LocalInstallUpdateService,
     LocalMemoryCacheSingleton,
+    MarkInstallAsInUseFailedEvent,
     NoExtensionIdProvided,
     registerEventStream,
     UninstallErrorConfiguration,
@@ -85,7 +87,6 @@ import
     WebRequestWorkerSingleton,
     WindowDisplayWorker
 } from 'vscode-dotnet-runtime-library';
-import { InstallTrackerSingleton } from 'vscode-dotnet-runtime-library/dist/Acquisition/InstallTrackerSingleton';
 import { dotnetCoreAcquisitionExtensionId } from './DotnetCoreAcquisitionId';
 import open = require('open');
 
@@ -504,7 +505,17 @@ export function activate(vsCodeContext: vscode.ExtensionContext, extensionContex
 
             if ((installs?.length ?? 0) > 0)
             {
-                await InstallTrackerSingleton.getInstance(globalEventStream, vsCodeContext.globalState).markInstallAsInUse(dotnetExecutablePath);
+                try
+                {
+                    await InstallTrackerSingleton.getInstance(globalEventStream, vsCodeContext.globalState).markInstallAsInUse(dotnetExecutablePath);
+                }
+                catch (error: any)
+                {
+                    // Log but don't fail if we can't mark the install as in use (e.g., due to mutex/temp folder issues)
+                    // This is a non-critical operation that shouldn't prevent the extension from finding and using the .NET installation
+                    globalEventStream.post(new MarkInstallAsInUseFailedEvent(
+                        `Failed to mark install as in use: ${error?.message ?? JSON.stringify(error)}. Continuing anyway.`));
+                }
             }
 
             return installs ?? [];
@@ -738,7 +749,17 @@ ${JSON.stringify(commandContext)}`));
             if (validated)
             {
                 globalEventStream.post(new DotnetFindPathMetCondition(`${path} met the conditions.`));
-                await InstallTrackerSingleton.getInstance(globalEventStream, vsCodeContext.globalState).markInstallAsInUse(path);
+                try
+                {
+                    await InstallTrackerSingleton.getInstance(globalEventStream, vsCodeContext.globalState).markInstallAsInUse(path);
+                }
+                catch (error: any)
+                {
+                    // Log but don't fail if we can't mark the install as in use (e.g., due to mutex/temp folder issues)
+                    // This is a non-critical operation that shouldn't prevent the extension from finding and using the .NET installation
+                    globalEventStream.post(new MarkInstallAsInUseFailedEvent(
+                        `Failed to mark install as in use: ${error?.message ?? JSON.stringify(error)}. Continuing anyway.`));
+                }
                 return path;
             }
         }

vscode-dotnet-runtime-library/src/EventStream/EventStreamEvents.ts

@@ -1701,6 +1701,16 @@ export class DotnetOfflineWarning extends DotnetCustomMessageEvent
     }
 }
 
+export class MarkInstallAsInUseFailedEvent extends DotnetCustomMessageEvent
+{
+    public readonly eventName = 'MarkInstallAsInUseFailedEvent';
+    constructor(eventMsg: string)
+    {
+        super(eventMsg);
+        this.type = EventType.DotnetAcquisitionMessage;
+    }
+}
+
 export class NetInstallerBeginExecutionEvent extends DotnetCustomMessageEvent
 {
     public readonly eventName = 'NetInstallerBeginExecutionEvent';

vscode-dotnet-runtime-library/src/index.ts

@@ -25,6 +25,7 @@ export * from './Acquisition/IJsonInstaller';
 export * from './Acquisition/InstallationValidator';
 export * from './Acquisition/InstallRecord';
 export * from './Acquisition/InstallRecordWithPath';
+export * from './Acquisition/InstallTrackerSingleton';
 export * from './Acquisition/IVersionResolver';
 export * from './Acquisition/JsonInstaller';
 export * from './Acquisition/LinuxGlobalInstaller';

vscode-dotnet-sdk-extension/src/extension.ts

@@ -22,6 +22,8 @@ import
     EventBasedError,
     ExtensionConfigurationWorker,
     formatIssueUrl,
+    GlobalInstallerResolver,
+    IAcquisitionWorkerContext,
     IDotnetAcquireContext,
     IDotnetUninstallContext,
     IEventStreamContext,
@@ -38,8 +40,6 @@ import
 } from 'vscode-dotnet-runtime-library';
 import open = require('open');
 
-import { GlobalInstallerResolver } from 'vscode-dotnet-runtime-library/dist/Acquisition/GlobalInstallerResolver';
-import { IAcquisitionWorkerContext } from 'vscode-dotnet-runtime-library/dist/Acquisition/IAcquisitionWorkerContext';
 import { dotnetCoreAcquisitionExtensionId } from './DotnetCoreAcquisitionId';
 
 const packageJson = require('../package.json');