ogb912/opensim
1
0
Fork 0
mirror of https://github.com/opensim/opensim.git synced 2026-08-05 00:46:02 +08:00
Code Issues Packages Projects Releases Wiki Activity

rename XMREngine as Yengine (still not all done), big mess source formating changes, move state files to proper folder, fix a source file locking on errors, more changes for cross platform including from Mike,... yes yes i know a messy commit

Browse Source
This commit is contained in:
UbitUmarov
2018-02-23 14:52:34 +00:00
parent 756fbf324a
commit 2129d941ac
55 changed files with 36917 additions and 32055 deletions
Download Patch File Download Diff File Expand all files Collapse all files

192
OpenSim/Region/ScriptEngine/YEngine/XMRInstQueue.cs Normal file
View File

@@ -0,0 +1,192 @@
/*
* 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;
namespace OpenSim.Region.ScriptEngine.Yengine
{
/**
* @brief Implements a queue of XMRInstance's.
* Do our own queue to avoid shitty little mallocs.
*
* Note: looping inst.m_NextInst and m_PrevInst back to itself
* when inst is removed from a queue is purely for debug.
*/
public class XMRInstQueue
{
private XMRInstance m_Head = null;
private XMRInstance m_Tail = null;
/**
* @brief Insert instance at head of queue (in front of all others)
* @param inst = instance to insert
*/
public void InsertHead(XMRInstance inst)
{
if((inst.m_PrevInst != inst) || (inst.m_NextInst != inst))
throw new Exception("already in list");
inst.m_PrevInst = null;
if((inst.m_NextInst = m_Head) == null)
m_Tail = inst;
else
m_Head.m_PrevInst = inst;
m_Head = inst;
}
/**
* @brief Insert instance at tail of queue (behind all others)
* @param inst = instance to insert
*/
public void InsertTail(XMRInstance inst)
{
if((inst.m_PrevInst != inst) || (inst.m_NextInst != inst))
throw new Exception("already in list");
inst.m_NextInst = null;
if((inst.m_PrevInst = m_Tail) == null)
m_Head = inst;
else
m_Tail.m_NextInst = inst;
m_Tail = inst;
}
/**
* @brief Insert instance before another element in queue
* @param inst = instance to insert
* @param after = element that is to come after one being inserted
*/
public void InsertBefore(XMRInstance inst, XMRInstance after)
{
if((inst.m_PrevInst != inst) || (inst.m_NextInst != inst))
throw new Exception("already in list");
if(after == null)
InsertTail(inst);
else
{
inst.m_NextInst = after;
inst.m_PrevInst = after.m_PrevInst;
if(inst.m_PrevInst == null)
m_Head = inst;
else
inst.m_PrevInst.m_NextInst = inst;
after.m_PrevInst = inst;
}
}
/**
* @brief Peek to see if anything in queue
* @returns first XMRInstance in queue but doesn't remove it
* null if queue is empty
*/
public XMRInstance PeekHead()
{
return m_Head;
}
/**
* @brief Remove first element from queue, if any
* @returns null if queue is empty
* else returns first element in queue and removes it
*/
public XMRInstance RemoveHead()
{
XMRInstance inst = m_Head;
if(inst != null)
{
if((m_Head = inst.m_NextInst) == null)
m_Tail = null;
else
m_Head.m_PrevInst = null;
inst.m_NextInst = inst;
inst.m_PrevInst = inst;
}
return inst;
}
/**
* @brief Remove last element from queue, if any
* @returns null if queue is empty
* else returns last element in queue and removes it
*/
public XMRInstance RemoveTail()
{
XMRInstance inst = m_Tail;
if(inst != null)
{
if((m_Tail = inst.m_PrevInst) == null)
m_Head = null;
else
m_Tail.m_NextInst = null;
inst.m_NextInst = inst;
inst.m_PrevInst = inst;
}
return inst;
}
/**
* @brief Remove arbitrary element from queue, if any
* @param inst = element to remove (assumed to be in the queue)
* @returns with element removed
*/
public void Remove(XMRInstance inst)
{
XMRInstance next = inst.m_NextInst;
XMRInstance prev = inst.m_PrevInst;
if((prev == inst) || (next == inst))
throw new Exception("not in a list");
if(next == null)
{
if(m_Tail != inst)
throw new Exception("not in this list");
m_Tail = prev;
}
else
next.m_PrevInst = prev;
if(prev == null)
{
if(m_Head != inst)
throw new Exception("not in this list");
m_Head = next;
}
else
prev.m_NextInst = next;
inst.m_NextInst = inst;
inst.m_PrevInst = inst;
}
}
}