2 // System.Web.TimeoutManager
5 // Gonzalo Paniagua Javier (gonzalo@ximian.com)
7 // (C) 2003 Novell, Inc (http://www.novell.com)
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System.Collections;
33 using System.Threading;
34 using System.Web.Configuration;
47 public TimeoutManager ()
49 contexts = Hashtable.Synchronized (new Hashtable ());
50 timer = new Timer (new TimerCallback (CheckTimeouts), null, 0, 15000);
53 * To prevent the compiler from issuing a warning, we need to keep a
54 * reference to the timer so it is not disposed
60 public void Add (HttpContext context)
62 object value = contexts [context];
64 value = Thread.CurrentThread;
65 } else if (value is Thread) {
66 ArrayList list = new ArrayList ();
68 list.Add (Thread.CurrentThread);
71 ArrayList list = (ArrayList) value;
72 list.Add (Thread.CurrentThread);
77 contexts [context] = value;
81 public Thread Remove (HttpContext context)
83 object value = contexts [context];
87 if (value is Thread) {
89 contexts.Remove (context);
91 return (Thread) value;
94 ArrayList list = (ArrayList) value;
97 result = (Thread) list [list.Count - 1];
98 list.RemoveAt (list.Count - 1);
101 if (list.Count == 0) {
103 contexts.Remove (context);
110 void CheckTimeouts (object state)
112 if (contexts.Count == 0) {
116 DateTime now = DateTime.UtcNow;
117 ArrayList clist = new ArrayList ();
119 lock (this) { // The lock prevents Keys enumerator from being out of synch
120 clist.AddRange (contexts.Keys);
123 foreach (HttpContext context in clist) {
124 if (!context.CheckIfTimeout (now))
127 Thread thread = Remove (context);
128 if (thread != null) // Only if context is removed right after the lock
129 thread.Abort (new StepTimeout ());