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bullet: Fix memory leak getting persistent manifolds from Python

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These classes ought to be returned by value. Cleaner fix will be in master.

Fixes #1193
This commit is contained in:
rdb 2021-10-27 11:20:19 +02:00
parent 57d7bc2f53
commit ad7cbcd4ec
4 changed files with 36 additions and 4 deletions
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17
panda/src/bullet/bulletPersistentManifold.cxx
View File

@ -49,6 +49,8 @@ get_contact_processing_threshold() const {
*/
void BulletPersistentManifold::
clear_manifold() {
nassertv_always(_manifold != nullptr);
LightMutexHolder holder(BulletWorld::get_global_lock());
_manifold->clearManifold();
@ -59,6 +61,8 @@ clear_manifold() {
*/
PandaNode *BulletPersistentManifold::
get_node0() {
nassertr_always(_manifold != nullptr, nullptr);
LightMutexHolder holder(BulletWorld::get_global_lock());
#if BT_BULLET_VERSION >= 281
@ -75,6 +79,8 @@ get_node0() {
*/
PandaNode *BulletPersistentManifold::
get_node1() {
nassertr_always(_manifold != nullptr, nullptr);
LightMutexHolder holder(BulletWorld::get_global_lock());
#if BT_BULLET_VERSION >= 281
@ -91,6 +97,8 @@ get_node1() {
*/
int BulletPersistentManifold::
get_num_manifold_points() const {
nassertr_always(_manifold != nullptr, 0);
LightMutexHolder holder(BulletWorld::get_global_lock());
return _manifold->getNumContacts();
@ -107,3 +115,12 @@ get_manifold_point(int idx) const {
return new BulletManifoldPoint(_manifold->getContactPoint(idx));
}
/**
*
*/
BulletManifoldPoint BulletPersistentManifold::
__get_manifold_point(int idx) const {
LightMutexHolder holder(BulletWorld::get_global_lock());
return BulletManifoldPoint(_manifold->getContactPoint(idx));
}

5
panda/src/bullet/bulletPersistentManifold.h
View File

@ -35,7 +35,8 @@ PUBLISHED:
int get_num_manifold_points() const;
BulletManifoldPoint *get_manifold_point(int idx) const;
MAKE_SEQ(get_manifold_points, get_num_manifold_points, get_manifold_point);
BulletManifoldPoint __get_manifold_point(int idx) const;
MAKE_SEQ(get_manifold_points, get_num_manifold_points, __get_manifold_point);
PN_stdfloat get_contact_breaking_threshold() const;
PN_stdfloat get_contact_processing_threshold() const;
@ -44,7 +45,7 @@ PUBLISHED:
MAKE_PROPERTY(node0, get_node0);
MAKE_PROPERTY(node1, get_node1);
MAKE_SEQ_PROPERTY(manifold_points, get_num_manifold_points, get_manifold_point);
MAKE_SEQ_PROPERTY(manifold_points, get_num_manifold_points, __get_manifold_point);
MAKE_PROPERTY(contact_breaking_threshold, get_contact_breaking_threshold);
MAKE_PROPERTY(contact_processing_threshold, get_contact_processing_threshold);

13
panda/src/bullet/bulletWorld.cxx
View File

@ -1070,6 +1070,19 @@ get_manifold(int idx) const {
return (ptr) ? new BulletPersistentManifold(ptr) : nullptr;
}
/**
*
*/
BulletPersistentManifold BulletWorld::
__get_manifold(int idx) const {
LightMutexHolder holder(get_global_lock());
nassertr(idx < _dispatcher->getNumManifolds(), BulletPersistentManifold(nullptr));
btPersistentManifold *ptr = _dispatcher->getManifoldByIndexInternal(idx);
return BulletPersistentManifold(ptr);
}
/**
*
*/

5
panda/src/bullet/bulletWorld.h
View File

@ -128,7 +128,8 @@ PUBLISHED:
// Manifolds
int get_num_manifolds() const;
BulletPersistentManifold *get_manifold(int idx) const;
MAKE_SEQ(get_manifolds, get_num_manifolds, get_manifold);
BulletPersistentManifold __get_manifold(int idx) const;
MAKE_SEQ(get_manifolds, get_num_manifolds, __get_manifold);
// Collision filtering
void set_group_collision_flag(unsigned int group1, unsigned int group2, bool enable);
@ -168,7 +169,7 @@ PUBLISHED:
MAKE_SEQ_PROPERTY(characters, get_num_characters, get_character);
MAKE_SEQ_PROPERTY(vehicles, get_num_vehicles, get_vehicle);
MAKE_SEQ_PROPERTY(constraints, get_num_constraints, get_constraint);
MAKE_SEQ_PROPERTY(manifolds, get_num_manifolds, get_manifold);
MAKE_SEQ_PROPERTY(manifolds, get_num_manifolds, __get_manifold);
MAKE_PROPERTY(force_update_all_aabbs, get_force_update_all_aabbs,
set_force_update_all_aabbs);