XMRScriptUThread.cs 3.6 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697
  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. using System.Collections.Generic;
  29. using System.Reflection;
  30. using System.Threading;
  31. namespace OpenSim.Region.ScriptEngine.Yengine
  32. {
  33. public partial class XMRInstance
  34. {
  35. /**
  36. * @brief Start script event handler from the beginning.
  37. * Return when either the script event handler completes
  38. * or the script calls Hiber().
  39. * @returns null: script did not throw any exception so far
  40. * else: script threw an exception
  41. */
  42. public Exception StartEx()
  43. {
  44. // Start script event handler from very beginning.
  45. callMode = XMRInstance.CallMode_NORMAL;
  46. try
  47. {
  48. CallSEH(); // run script event handler
  49. }
  50. catch(StackHibernateException)
  51. {
  52. if(callMode != XMRInstance.CallMode_SAVE)
  53. throw new Exception("callMode=" + callMode);
  54. }
  55. catch(Exception e)
  56. {
  57. return e;
  58. }
  59. return null;
  60. }
  61. /**
  62. * @brief We now want to run some more script code from where it last hibernated
  63. * until it either finishes the script event handler or until the script
  64. * calls Hiber() again.
  65. */
  66. public Exception ResumeEx()
  67. {
  68. // Resume script from captured stack.
  69. callMode = XMRInstance.CallMode_RESTORE;
  70. suspendOnCheckRunTemp = true;
  71. try
  72. {
  73. CallSEH(); // run script event handler
  74. }
  75. catch(StackHibernateException)
  76. {
  77. if(callMode != XMRInstance.CallMode_SAVE)
  78. throw new Exception("callMode=" + callMode);
  79. }
  80. catch (Exception e)
  81. {
  82. return e;
  83. }
  84. return null;
  85. }
  86. public class StackHibernateException: Exception, IXMRUncatchable
  87. {
  88. }
  89. }
  90. }