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238 lines
9.7 KiB
C#
238 lines
9.7 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics; //for [DebuggerNonUserCode]
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using System.Reflection;
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using System.Runtime.Remoting.Lifetime;
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using OpenSim.Region.ScriptEngine.Shared;
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using OpenSim.Region.ScriptEngine.Shared.ScriptBase;
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using log4net;
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namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase
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{
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public class Executor
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{
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// private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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/// <summary>
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/// Contains the script to execute functions in.
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/// </summary>
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protected IScript m_Script;
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protected static readonly Dictionary<string, scriptEvents> m_eventFlagsMap = new Dictionary<string, scriptEvents>()
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{
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{"attach", scriptEvents.attach},
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{"at_rot_target", scriptEvents.at_rot_target},
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{"at_target", scriptEvents.at_target},
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// {"changed",(long)scriptEvents.changed},
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{"collision", scriptEvents.collision},
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{"collision_end", scriptEvents.collision_end},
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{"collision_start", scriptEvents.collision_start},
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{"control", scriptEvents.control},
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{"dataserver", scriptEvents.dataserver},
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{"email", scriptEvents.email},
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{"http_response", scriptEvents.http_response},
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{"land_collision", scriptEvents.land_collision},
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{"land_collision_end", scriptEvents.land_collision_end},
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{"land_collision_start", scriptEvents.land_collision_start},
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//{"link_message",scriptEvents.link_message},
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{"listen", scriptEvents.listen},
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{"money", scriptEvents.money},
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{"moving_end", scriptEvents.moving_end},
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{"moving_start", scriptEvents.moving_start},
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{"not_at_rot_target", scriptEvents.not_at_rot_target},
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{"not_at_target", scriptEvents.not_at_target},
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//{"no_sensor",(long)scriptEvents.no_sensor},
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//{"on_rez",(long)scriptEvents.on_rez},
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{"remote_data", scriptEvents.remote_data},
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{"run_time_permissions", scriptEvents.run_time_permissions},
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//{"sensor",(long)scriptEvents.sensor},
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{"state_entry", scriptEvents.state_entry},
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{"state_exit", scriptEvents.state_exit},
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{"timer", scriptEvents.timer},
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{"touch", scriptEvents.touch},
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{"touch_end", scriptEvents.touch_end},
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{"touch_start", scriptEvents.touch_start},
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{"transaction_result", scriptEvents.transaction_result},
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{"object_rez", scriptEvents.object_rez}
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};
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[Flags]
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public enum scriptEvents : int
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{
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None = 0,
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attach = 1,
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state_exit = 1 << 1,
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timer = 1 << 2,
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touch = 1 << 3,
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collision = 1 << 4,
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collision_end = 1 << 5,
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collision_start = 1 << 6,
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control = 1 << 7,
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dataserver = 1 << 8,
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email = 1 << 9,
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http_response = 1 << 10,
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land_collision = 1 << 11,
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land_collision_end = 1 << 12,
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land_collision_start = 1 << 13,
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at_target = 1 << 14,
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listen = 1 << 15,
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money = 1 << 16,
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moving_end = 1 << 17,
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moving_start = 1 << 18,
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not_at_rot_target = 1 << 19,
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not_at_target = 1 << 20,
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touch_start = 1 << 21,
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object_rez = 1 << 22,
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remote_data = 1 << 23,
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at_rot_target = 1 << 24,
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transaction_result = 1 << 25,
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//
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//
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run_time_permissions = 1 << 28,
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touch_end = 1 << 29,
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state_entry = 1 << 30,
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}
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// Cache functions by keeping a reference to them in a dictionary
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private Dictionary<string, MethodInfo> Events = new Dictionary<string, MethodInfo>();
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private Dictionary<string, scriptEvents> m_stateEvents = new Dictionary<string, scriptEvents>();
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public Executor(IScript script)
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{
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m_Script = script;
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}
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public scriptEvents GetStateEventFlags(string state)
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{
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//m_log.Debug("Get event flags for " + state);
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// Check to see if we've already computed the flags for this state
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scriptEvents eventFlags = scriptEvents.None;
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if (m_stateEvents.ContainsKey(state))
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{
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m_stateEvents.TryGetValue(state, out eventFlags);
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return eventFlags;
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}
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Type type=m_Script.GetType();
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// Fill in the events for this state, cache the results in the map
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foreach (KeyValuePair<string, scriptEvents> kvp in m_eventFlagsMap)
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{
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string evname = state + "_event_" + kvp.Key;
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//m_log.Debug("Trying event "+evname);
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try
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{
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MethodInfo mi = type.GetMethod(evname);
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if (mi != null)
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{
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//m_log.Debug("Found handler for " + kvp.Key);
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eventFlags |= kvp.Value;
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}
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}
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catch(Exception)
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{
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//m_log.Debug("Exeption in GetMethod:\n"+e.ToString());
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}
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}
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// Save the flags we just computed and return the result
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if (eventFlags != 0)
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m_stateEvents.Add(state, eventFlags);
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//m_log.Debug("Returning {0:x}", eventFlags);
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return (eventFlags);
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}
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[DebuggerNonUserCode]
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public void ExecuteEvent(string state, string FunctionName, object[] args)
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{
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// IMPORTANT: Types and MemberInfo-derived objects require a LOT of memory.
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// Instead use RuntimeTypeHandle, RuntimeFieldHandle and RunTimeHandle (IntPtr) instead!
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string EventName = state + "_event_" + FunctionName;
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//#if DEBUG
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//m_log.Debug("ScriptEngine: Script event function name: " + EventName);
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//#endif
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if (Events.ContainsKey(EventName) == false)
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{
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// Not found, create
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Type type = m_Script.GetType();
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try
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{
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MethodInfo mi = type.GetMethod(EventName);
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Events.Add(EventName, mi);
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}
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catch
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{
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// m_log.Error("Event "+EventName+" not found.");
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// Event name not found, cache it as not found
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Events.Add(EventName, null);
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}
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}
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// Get event
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MethodInfo ev = null;
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Events.TryGetValue(EventName, out ev);
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if (ev == null) // No event by that name!
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{
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//m_log.Debug("ScriptEngine Can not find any event named: \String.Empty + EventName + "\String.Empty);
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return;
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}
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//cfk 2-7-08 dont need this right now and the default Linux build has DEBUG defined
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#if DEBUG
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//m_log.Debug("ScriptEngine: Executing function name: " + EventName);
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#endif
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// Found
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try
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{
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ev.Invoke(m_Script, args);
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}
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catch (TargetInvocationException tie)
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{
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// Grab the inner exception and rethrow it, unless the inner
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// exception is an EventAbortException as this indicates event
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// invocation termination due to a state change.
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// DO NOT THROW JUST THE INNER EXCEPTION!
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// FriendlyErrors depends on getting the whole exception!
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//
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if (!(tie.InnerException is EventAbortException))
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{
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throw;
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}
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}
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}
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}
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}
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