Avoid locking in WireupAutomaticEvents

[mono.git] / mcs / class / System.Web / System.Web.Security / DefaultAuthenticationModule.cs

diff --git a/mcs/class/System.Web/System.Web.Security/DefaultAuthenticationModule.cs b/mcs/class/System.Web/System.Web.Security/DefaultAuthenticationModule.cs
index 0eb65a656b9897914fe5b81531dd89249df472c1..ba58d6bca46285d5199e6829f96ea5a8d8de8d5f 100644 (file)
--- a/mcs/class/System.Web/System.Web.Security/DefaultAuthenticationModule.cs
+++ b/mcs/class/System.Web/System.Web.Security/DefaultAuthenticationModule.cs
@@ -27,6 +27,7 @@
 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 //
 
+using System.ComponentModel;
 using System.Security.Permissions;
 using System.Security.Principal;
 using System.Threading;
@@ -39,15 +40,21 @@ namespace System.Web.Security
        [AspNetHostingPermission (SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
        public sealed class DefaultAuthenticationModule : IHttpModule
        {
+               static readonly object authenticateEvent = new object ();
                static GenericIdentity defaultIdentity = new GenericIdentity ("", "");
 
+               EventHandlerList events = new EventHandlerList ();
+               
+               public event DefaultAuthenticationEventHandler Authenticate {
+                       add { events.AddHandler (authenticateEvent, value); }
+                       remove { events.RemoveHandler (authenticateEvent, value); }
+               }
+               
                [SecurityPermission (SecurityAction.Demand, UnmanagedCode = true)]
                public DefaultAuthenticationModule ()
                {
                }
 
-               public event DefaultAuthenticationEventHandler Authenticate;
-
                public void Dispose ()
                {
                }
@@ -62,8 +69,9 @@ namespace System.Web.Security
                        HttpApplication app = (HttpApplication) sender;
                        HttpContext context = app.Context;
 
-                       if (context.User == null && Authenticate != null)
-                               Authenticate (this, new DefaultAuthenticationEventArgs (context));
+                       DefaultAuthenticationEventHandler eh = events [authenticateEvent] as DefaultAuthenticationEventHandler;
+                       if (context.User == null && eh != null)
+                               eh (this, new DefaultAuthenticationEventArgs (context));
 
                        if (context.User == null)
                                context.User = new GenericPrincipal (defaultIdentity, new string [0]);