/* * Copyright (c) Contributors, http://opensimulator.org/ * See CONTRIBUTORS.TXT for a full list of copyright holders. * * 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 OpenSimulator Project 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 DEVELOPERS ``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 THE CONTRIBUTORS 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.Reflection; using System.Runtime.Remoting.Lifetime; using OpenSim.Region.ScriptEngine.Shared; using OpenSim.Region.ScriptEngine.Shared.ScriptBase; using log4net; namespace OpenSim.Region.ScriptEngine.Shared.ScriptBase { public class Executor { // private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); /// <summary> /// Contains the script to execute functions in. /// </summary> protected IScript m_Script; protected Dictionary<string, scriptEvents> m_eventFlagsMap = new Dictionary<string, scriptEvents>(); [Flags] public enum scriptEvents : int { None = 0, attach = 1, collision = 16, collision_end = 32, collision_start = 64, control = 128, dataserver = 256, email = 512, http_response = 1024, land_collision = 2048, land_collision_end = 4096, land_collision_start = 8192, at_target = 16384, at_rot_target = 16777216, listen = 32768, money = 65536, moving_end = 131072, moving_start = 262144, not_at_rot_target = 524288, not_at_target = 1048576, remote_data = 8388608, run_time_permissions = 268435456, state_entry = 1073741824, state_exit = 2, timer = 4, touch = 8, touch_end = 536870912, touch_start = 2097152, object_rez = 4194304 } // Cache functions by keeping a reference to them in a dictionary private Dictionary<string, MethodInfo> Events = new Dictionary<string, MethodInfo>(); private Dictionary<string, scriptEvents> m_stateEvents = new Dictionary<string, scriptEvents>(); public Executor(IScript script) { m_Script = script; initEventFlags(); } public scriptEvents GetStateEventFlags(string state) { //m_log.Debug("Get event flags for " + state); // Check to see if we've already computed the flags for this state scriptEvents eventFlags = scriptEvents.None; if (m_stateEvents.ContainsKey(state)) { m_stateEvents.TryGetValue(state, out eventFlags); return eventFlags; } Type type=m_Script.GetType(); // Fill in the events for this state, cache the results in the map foreach (KeyValuePair<string, scriptEvents> kvp in m_eventFlagsMap) { string evname = state + "_event_" + kvp.Key; //m_log.Debug("Trying event "+evname); try { MethodInfo mi = type.GetMethod(evname); if (mi != null) { //m_log.Debug("Found handler for " + kvp.Key); eventFlags |= kvp.Value; } } catch(Exception) { //m_log.Debug("Exeption in GetMethod:\n"+e.ToString()); } } // Save the flags we just computed and return the result if (eventFlags != 0) m_stateEvents.Add(state, eventFlags); //m_log.Debug("Returning {0:x}", eventFlags); return (eventFlags); } public void ExecuteEvent(string state, string FunctionName, object[] args) { // IMPORTANT: Types and MemberInfo-derived objects require a LOT of memory. // Instead use RuntimeTypeHandle, RuntimeFieldHandle and RunTimeHandle (IntPtr) instead! string EventName = state + "_event_" + FunctionName; //#if DEBUG //m_log.Debug("ScriptEngine: Script event function name: " + EventName); //#endif if (Events.ContainsKey(EventName) == false) { // Not found, create Type type = m_Script.GetType(); try { MethodInfo mi = type.GetMethod(EventName); Events.Add(EventName, mi); } catch { // m_log.Error("Event "+EventName+" not found."); // Event name not found, cache it as not found Events.Add(EventName, null); } } // Get event MethodInfo ev = null; Events.TryGetValue(EventName, out ev); if (ev == null) // No event by that name! { //m_log.Debug("ScriptEngine Can not find any event named: \String.Empty + EventName + "\String.Empty); return; } //cfk 2-7-08 dont need this right now and the default Linux build has DEBUG defined #if DEBUG //m_log.Debug("ScriptEngine: Executing function name: " + EventName); #endif // Found try { ev.Invoke(m_Script, args); } catch (TargetInvocationException tie) { // Grab the inner exception and rethrow it, unless the inner // exception is an EventAbortException as this indicates event // invocation termination due to a state change. // DO NOT THROW JUST THE INNER EXCEPTION! // FriendlyErrors depends on getting the whole exception! // if (!(tie.InnerException is EventAbortException)) { throw; } } } protected void initEventFlags() { // Initialize the table if it hasn't already been done if (m_eventFlagsMap.Count > 0) { return; } m_eventFlagsMap.Add("attach", scriptEvents.attach); m_eventFlagsMap.Add("at_rot_target", scriptEvents.at_rot_target); m_eventFlagsMap.Add("at_target", scriptEvents.at_target); // m_eventFlagsMap.Add("changed",(long)scriptEvents.changed); m_eventFlagsMap.Add("collision", scriptEvents.collision); m_eventFlagsMap.Add("collision_end", scriptEvents.collision_end); m_eventFlagsMap.Add("collision_start", scriptEvents.collision_start); m_eventFlagsMap.Add("control", scriptEvents.control); m_eventFlagsMap.Add("dataserver", scriptEvents.dataserver); m_eventFlagsMap.Add("email", scriptEvents.email); m_eventFlagsMap.Add("http_response", scriptEvents.http_response); m_eventFlagsMap.Add("land_collision", scriptEvents.land_collision); m_eventFlagsMap.Add("land_collision_end", scriptEvents.land_collision_end); m_eventFlagsMap.Add("land_collision_start", scriptEvents.land_collision_start); // m_eventFlagsMap.Add("link_message",scriptEvents.link_message); m_eventFlagsMap.Add("listen", scriptEvents.listen); m_eventFlagsMap.Add("money", scriptEvents.money); m_eventFlagsMap.Add("moving_end", scriptEvents.moving_end); m_eventFlagsMap.Add("moving_start", scriptEvents.moving_start); m_eventFlagsMap.Add("not_at_rot_target", scriptEvents.not_at_rot_target); m_eventFlagsMap.Add("not_at_target", scriptEvents.not_at_target); // m_eventFlagsMap.Add("no_sensor",(long)scriptEvents.no_sensor); // m_eventFlagsMap.Add("on_rez",(long)scriptEvents.on_rez); m_eventFlagsMap.Add("remote_data", scriptEvents.remote_data); m_eventFlagsMap.Add("run_time_permissions", scriptEvents.run_time_permissions); // m_eventFlagsMap.Add("sensor",(long)scriptEvents.sensor); m_eventFlagsMap.Add("state_entry", scriptEvents.state_entry); m_eventFlagsMap.Add("state_exit", scriptEvents.state_exit); m_eventFlagsMap.Add("timer", scriptEvents.timer); m_eventFlagsMap.Add("touch", scriptEvents.touch); m_eventFlagsMap.Add("touch_end", scriptEvents.touch_end); m_eventFlagsMap.Add("touch_start", scriptEvents.touch_start); m_eventFlagsMap.Add("object_rez", scriptEvents.object_rez); } } }