From f9650f0b6a07d4f6b835f1fe0b89ced58a504fe1 Mon Sep 17 00:00:00 2001
From: Max Horn
Date: Wed, 24 Sep 2008 20:29:29 +0000
Subject: Changed Common::String to use a MemoryPool for its refcounts

svn-id: r34642
---
 common/str.cpp | 21 +++++++++++++++++++--
 1 file changed, 19 insertions(+), 2 deletions(-)

diff --git a/common/str.cpp b/common/str.cpp
index d1fed68844..6c48738533 100644
--- a/common/str.cpp
+++ b/common/str.cpp
@@ -26,6 +26,13 @@
 #include "common/hash-str.h"
 #include "common/util.h"
 
+#include "common/memorypool.h"
+
+#if !defined(__SYMBIAN32__) 
+#include <new>
+#endif
+
+
 namespace Common {
 
 #if !(defined(PALMOS_ARM) || defined(PALMOS_DEBUG) || defined(__GP32__))
@@ -34,6 +41,9 @@ const String String::emptyString;
 const char *String::emptyString = "";
 #endif
 
+
+MemoryPool *g_refCountPool = 0;	// FIXME: This is never freed right now
+
 static uint32 computeCapacity(uint32 len) {
 	// By default, for the capacity we use the next multiple of 32
 	return ((len + 32 - 1) & ~0x1F);
@@ -180,7 +190,11 @@ void String::ensureCapacity(uint32 new_size, bool keep_old) {
 void String::incRefCount() const {
 	assert(!isStorageIntern());
 	if (_extern._refCount == 0) {
-		_extern._refCount = new int(2);
+		if (g_refCountPool == 0)
+			g_refCountPool = new MemoryPool(sizeof(int));
+
+		_extern._refCount = (int *)g_refCountPool->malloc();
+		*_extern._refCount = 2;
 	} else {
 		++(*_extern._refCount);
 	}
@@ -196,7 +210,10 @@ void String::decRefCount(int *oldRefCount) {
 	if (!oldRefCount || *oldRefCount <= 0) {
 		// The ref count reached zero, so we free the string storage
 		// and the ref count storage.
-		delete oldRefCount;
+		if (oldRefCount) {
+			assert(g_refCountPool);
+			g_refCountPool->free(oldRefCount);
+		}
 		free(_str);
 
 		// Even though _str points to a freed memory block now,
-- 
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