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ThreadSafeRandom.cs 2.6 KB

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  1. /*
  2. * Copyright (c) Contributors, http://opensimulator.org/
  3. * See CONTRIBUTORS.TXT for a full list of copyright holders.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. * * Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * * Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. * * Neither the name of the OpenSimulator Project nor the
  13. * names of its contributors may be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
  17. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19. * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
  20. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26. */
  27. using System;
  28. namespace OpenSim.Framework
  29. {
  30. /// <summary>
  31. /// A thread-safe Random since the .NET version is not.
  32. /// See http://msdn.microsoft.com/en-us/library/system.random%28v=vs.100%29.aspx
  33. /// </summary>
  34. public class ThreadSafeRandom : Random
  35. {
  36. public ThreadSafeRandom() : base() {}
  37. public ThreadSafeRandom(int seed): base (seed) {}
  38. public override int Next()
  39. {
  40. lock (this)
  41. return base.Next();
  42. }
  43. public override int Next(int maxValue)
  44. {
  45. lock (this)
  46. return base.Next(maxValue);
  47. }
  48. public override int Next(int minValue, int maxValue)
  49. {
  50. lock (this)
  51. return base.Next(minValue, maxValue);
  52. }
  53. public override void NextBytes(byte[] buffer)
  54. {
  55. lock (this)
  56. base.NextBytes(buffer);
  57. }
  58. public override double NextDouble()
  59. {
  60. lock (this)
  61. return base.NextDouble();
  62. }
  63. }
  64. }