/source/library/Interlace/ReactorCore/TimerQueueEntry.cs
C# | 96 lines | 58 code | 13 blank | 25 comment | 4 complexity | d442c75eb2e2c54df1a50267272f6867 MD5 | raw file
- #region Using Directives and Copyright Notice
-
- // Copyright (c) 2007-2010, Computer Consultancy Pty Ltd
- // All rights reserved.
- //
- // Redistribution and use in source and binary forms, with or without
- // modification, are permitted provided that the following conditions are met:
- // * Redistributions of source code must retain the above copyright
- // notice, this list of conditions and the following disclaimer.
- // * Redistributions in binary form must reproduce the above copyright
- // notice, this list of conditions and the following disclaimer in the
- // documentation and/or other materials provided with the distribution.
- // * Neither the name of the Computer Consultancy Pty Ltd nor the
- // names of its contributors may be used to endorse or promote products
- // derived from this software without specific prior written permission.
- //
- // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- // ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE
- // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- // DAMAGE.
-
- using System;
- using System.Collections.Generic;
- using System.Text;
-
- #endregion
-
- namespace Interlace.ReactorCore
- {
- public class TimerQueueEntry : IComparable
- {
- DateTime _fireAt;
- TimerCallback _callback;
- object _state;
- bool _fired;
- bool _cancelled;
-
- public TimerQueueEntry(DateTime fireAt, TimerCallback callback, object state)
- {
- _callback = callback;
- _state = state;
- _fireAt = fireAt;
- _fired = false;
- _cancelled = false;
- }
-
- public bool IsFireable(DateTime atTime)
- {
- return _fireAt <= atTime;
- }
-
- public TimeSpan GetTimeUntilFireable(DateTime atTime)
- {
- return _fireAt - atTime;
- }
-
- public void Cancel()
- {
- _cancelled = true;
- }
-
- public void Fire()
- {
- if (!_cancelled)
- {
- if (_fired) throw new InvalidOperationException("The timer has already been fired.");
-
- try
- {
- _callback(_fireAt, _state);
- }
- finally
- {
- _fired = true;
- }
- }
- }
-
- public int CompareTo(object obj)
- {
- TimerQueueEntry rhs = obj as TimerQueueEntry;
-
- if (rhs == null) throw new InvalidOperationException("A timer queue entry can not " +
- "be compared with any other object type or null references.");
-
- return _fireAt.CompareTo(rhs._fireAt);
- }
- }
- }