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Making singleton instances threadsafe

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This commit is contained in:
Benjamin Russell
2016-07-25 12:15:03 -07:00
parent 31576d0731
commit 46032d3e2e
3 changed files with 16 additions and 36 deletions
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22
src/ServiceHost/WorkspaceServices/WorkspaceService.cs
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@@ -15,23 +15,16 @@ using System.Linq;
namespace Microsoft.SqlTools.ServiceLayer.WorkspaceServices
{
public class WorkspaceService<TConfig> where TConfig : new()
public class WorkspaceService<TConfig> where TConfig : class, new()
{
#region Singleton Instance Implementation
private static WorkspaceService<TConfig> instance;
private static readonly Lazy<WorkspaceService<TConfig>> instance = new Lazy<WorkspaceService<TConfig>>(() => new WorkspaceService<TConfig>());
public static WorkspaceService<TConfig> Instance
{
get
{
if (instance == null)
{
instance = new WorkspaceService<TConfig>();
}
return instance;
}
get { return instance.Value; }
}
private WorkspaceService()
@@ -52,9 +45,8 @@ namespace Microsoft.SqlTools.ServiceLayer.WorkspaceServices
public delegate Task DidChangeTextDocumentNotificationTask(ScriptFile[] changedFiles, EventContext eventContext);
public List<DidChangeConfigurationNotificationHandler> ConfigurationNotificationHandlers;
public List<DidChangeTextDocumentNotificationTask> TextDocumentChangeHandlers;
private List<DidChangeConfigurationNotificationHandler> ConfigurationNotificationHandlers { get; set; }
private List<DidChangeTextDocumentNotificationTask> TextDocumentChangeHandlers { get; set; }
#endregion
@@ -153,7 +145,7 @@ namespace Microsoft.SqlTools.ServiceLayer.WorkspaceServices
Logger.Write(LogLevel.Verbose, msg.ToString());
var handlers = TextDocumentChangeHandlers.Select(t => t(changedFiles.ToArray(), eventContext)).ToArray();
var handlers = TextDocumentChangeHandlers.Select(t => t(changedFiles.ToArray(), eventContext));
return Task.WhenAll(handlers);
}
@@ -186,7 +178,7 @@ namespace Microsoft.SqlTools.ServiceLayer.WorkspaceServices
// Propagate the changes to the event handlers
var configUpdateTasks = ConfigurationNotificationHandlers.Select(
t => t(configChangeParams.Settings, CurrentSettings, eventContext)).ToArray();
t => t(configChangeParams.Settings, CurrentSettings, eventContext));
await Task.WhenAll(configUpdateTasks);
}