[ODE] Fix leaking of s_cachedPosR in collision_kernel.cpp

[Jon Watte (ODE)]

I added this patch to patch tracker:

When using leak checking allocators, the cached posR
inside collision_kernel.cpp gets reported. This patch
makes sure it gets disposed before the Windows leak
checker finds it, enabling a clean test run (at least
in my test code).

Cheers,

             / h+



--- ode/src/collision_kernel.cpp (revision 976)
+++ ode/src/collision_kernel.cpp (working copy)
@@ -50,6 +50,20 @@
// Allocate and free posr - we cache a single posr to
avoid thrashing
static dxPosR* s_cachedPosR = 0;

+namespace {
+ class DisposeCachedPosr {
+ public:
+ ~DisposeCachedPosr() {
+ if (s_cachedPosR) {
+ dFree(s_cachedPosR, sizeof(dxPosR));
+ s_cachedPosR = 0;
+ }
+ }
+ };
+
+ DisposeCachedPosr finalDispose;
+}
+
dxPosR* dAllocPosr()
{
dxPosR* retPosR;