From a512e881aa523a039305b418edb3977b0566ee38 Mon Sep 17 00:00:00 2001
From: "Johnny C. Lam" <jlam88@gmail.com>
Date: Sun, 17 Nov 2013 16:28:58 +0000
Subject: [PATCH] Add :Clean() method to pool classes.

This method can be used to release resources held in tables allocated from
the pool object as part of releasing the item back to the pool via
pool:Release(item).  The pool:Clean(item) method is called shortly before
the table is wiped and returned to the table pool.

git-svn-id: svn://svn.curseforge.net/wow/ovale/mainline/trunk@1184 d5049fe3-3747-40f7-a4b5-f36d6801af5f
---
 OvalePool.lua         |    5 +++++
 OvalePoolGC.lua       |    6 +++++-
 OvalePoolRefCount.lua |    5 +++++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/OvalePool.lua b/OvalePool.lua
index a93b63f..e77b265 100644
--- a/OvalePool.lua
+++ b/OvalePool.lua
@@ -56,11 +56,16 @@ end
 
 function OvalePool:Release(item)
 	assert(self.pool)
+	self:Clean(item)
 	wipe(item)
 	tinsert(self.pool, item)
 	self.unused = self.unused + 1
 end
 
+function OvalePool:Clean(item)
+	-- virtual function; override as needed.
+end
+
 function OvalePool:Drain()
 	self.pool = {}
 	self.size = self.size - self.unused
diff --git a/OvalePoolGC.lua b/OvalePoolGC.lua
index b2387c5..90b86a5 100644
--- a/OvalePoolGC.lua
+++ b/OvalePoolGC.lua
@@ -41,7 +41,11 @@ function OvalePoolGC:Get()
 end
 
 function OvalePoolGC:Release(item)
-	-- no-op
+	self:Clean(item)
+end
+
+function OvalePoolGC:Clean(item)
+	-- virtual function; override as needed.
 end
 
 function OvalePoolGC:Drain()
diff --git a/OvalePoolRefCount.lua b/OvalePoolRefCount.lua
index 7a1f9e2..a0f213c 100644
--- a/OvalePoolRefCount.lua
+++ b/OvalePoolRefCount.lua
@@ -59,6 +59,7 @@ local function ReleaseReference(item)
 		poolObject.refcount[item] = refcount - 1
 	else
 		poolObject.refcount[item] = nil
+		poolObject:Clean(item)
 		wipe(item)
 		tinsert(poolObject.pool, item)
 		poolObject.unused = poolObject.unused + 1
@@ -110,6 +111,10 @@ function OvalePoolRefCount:Release(item)
 	item:ReleaseReference()
 end
 
+function OvalePoolRefCount:Clean(item)
+	-- virtual function; override as needed.
+end
+
 function OvalePoolRefCount:Drain()
 	self.pool = {}
 	self.size = self.size - self.unused
-- 
1.7.9.5