Files
filament/libs/utils/src/EntityManager.cpp
Mathias Agopian ee3c3d0965 debug option to track Entities (#2526)
* debug option to track Entities

Set FILAMENT_UTILS_TRACK_ENTITIES to true when building libutils to
activate entity tracking. This adds two public methods:

getActiveEntities() and dumpActiveEntities() the later displays the
stack trace of where the remaining entities were allocated.

This is useful for tracking leaks.

* Update libs/utils/include/utils/EntityManager.h

Co-authored-by: Philip Rideout <philiprideout@gmail.com>

Co-authored-by: Philip Rideout <philiprideout@gmail.com>
2020-05-12 17:55:39 -07:00

70 lines
2.2 KiB
C++

/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <utils/EntityManager.h>
#include "EntityManagerImpl.h"
namespace utils {
EntityManager::EntityManager()
: mGens(new uint8_t[RAW_INDEX_COUNT]) {
// initialize all the generations to 0
std::fill_n(mGens, RAW_INDEX_COUNT, 0);
}
EntityManager::~EntityManager() {
delete [] mGens;
}
EntityManager::Listener::~Listener() noexcept = default;
EntityManager& EntityManager::get() noexcept {
// note: we leak the EntityManager because it's more important that it survives everything else
// the leak is really not a problem because the process is terminating anyways.
static EntityManagerImpl* instance = new EntityManagerImpl;
return *instance;
}
void EntityManager::create(size_t n, Entity* entities) {
static_cast<EntityManagerImpl *>(this)->create(n, entities);
}
void EntityManager::destroy(size_t n, Entity* entities) noexcept {
static_cast<EntityManagerImpl *>(this)->destroy(n, entities);
}
void EntityManager::registerListener(EntityManager::Listener* l) noexcept {
static_cast<EntityManagerImpl *>(this)->registerListener(l);
}
void EntityManager::unregisterListener(EntityManager::Listener* l) noexcept {
static_cast<EntityManagerImpl *>(this)->unregisterListener(l);
}
#if FILAMENT_UTILS_TRACK_ENTITIES
std::vector<Entity> EntityManager::getActiveEntities() const {
return static_cast<EntityManagerImpl const *>(this)->getActiveEntities();
}
void EntityManager::dumpActiveEntities(utils::io::ostream& out) const {
static_cast<EntityManagerImpl const *>(this)->dumpActiveEntities(out);
}
#endif
} // namespace utils