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using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using System.Runtime.Remoting.Lifetime;
namespace OpenSim.Region.ScriptEngine.Common
{
public class Executor : MarshalByRefObject
{
// Private instance for each script
private IScript m_Script;
private Dictionary<string, MethodInfo> Events = new Dictionary<string, MethodInfo>();
private bool m_Running = true;
//private List<IScript> Scripts = new List<IScript>();
public Executor(IScript Script)
{
m_Script = Script;
}
// Object never expires
public override Object InitializeLifetimeService()
{
Console.WriteLine("Executor: InitializeLifetimeService()");
// return null;
ILease lease = (ILease)base.InitializeLifetimeService();
if (lease.CurrentState == LeaseState.Initial)
{
lease.InitialLeaseTime = TimeSpan.Zero; // TimeSpan.FromMinutes(1);
// lease.SponsorshipTimeout = TimeSpan.FromMinutes(2);
// lease.RenewOnCallTime = TimeSpan.FromSeconds(2);
}
return lease;
}
public AppDomain GetAppDomain()
{
return AppDomain.CurrentDomain;
}
public void ExecuteEvent(string FunctionName, object[] args)
{
// IMPORTANT: Types and MemberInfo-derived objects require a LOT of memory.
// Instead use RuntimeTypeHandle, RuntimeFieldHandle and RunTimeHandle (IntPtr) instead!
if (m_Running == false)
{
// Script is inactive, do not execute!
return;
}
string EventName = m_Script.State() + "_event_" + FunctionName;
//type.InvokeMember(EventName, BindingFlags.InvokeMethod, null, m_Script, args);
Console.WriteLine("ScriptEngine Executor.ExecuteEvent: \"" + EventName + "\"");
if (Events.ContainsKey(EventName) == false)
{
// Not found, create
Type type = m_Script.GetType();
try
{
MethodInfo mi = type.GetMethod(EventName);
Events.Add(EventName, mi);
}
catch (Exception e)
{
// 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!
return;
// Found
try
{
// Invoke it
ev.Invoke(m_Script, args);
}
catch (Exception e)
{
// TODO: Send to correct place
Console.WriteLine("ScriptEngine Exception attempting to executing script function: " + e.ToString());
}
}
public void StopScript()
{
m_Running = false;
}
}
}
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