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// Copyright (C) 2020 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.
#pragma once
#include "base/Lookup.h"
#include "base/EntityManager.h"
#include <unordered_map>
namespace android {
namespace base {
template <size_t maxIndex,
class IndexType, // must be castable to uint64_t
class Data>
class HybridComponentManager {
public:
using UCM = UnpackedComponentManager<32, 16, 16, Data>;
using EM = EntityManager<32, 16, 16, Data>;
using IterFunc = typename UCM::ComponentIteratorFunc;
using ConstIterFunc = typename UCM::ConstComponentIteratorFunc;
using Handle = typename EM::EntityHandle;
void add(IndexType index, const Data& data) {
uint64_t index_u64 = (uint64_t)index;
if (index_u64 < maxIndex) {
auto internal_handle = index2Handle(index_u64);
mComponentManager.add(internal_handle, data);
} else {
mMap[index] = data;
}
}
void clear() {
mComponentManager.clear();
mMap.clear();
}
void remove(IndexType index) {
uint64_t index_u64 = (uint64_t)index;
if (index_u64 < maxIndex) {
auto internal_handle = index2Handle(index_u64);
mComponentManager.remove(internal_handle);
} else {
mMap.erase(index);
}
}
Data* get(IndexType index) {
uint64_t index_u64 = (uint64_t)index;
if (index_u64 < maxIndex) {
auto internal_handle = index2Handle(index_u64);
return mComponentManager.get(internal_handle);
} else {
return android::base::find(mMap, index);
}
}
const Data* get_const(IndexType index) const {
uint64_t index_u64 = (uint64_t)index;
if (index_u64 < maxIndex) {
auto internal_handle = index2Handle(index_u64);
return mComponentManager.get_const(internal_handle);
} else {
return android::base::find(mMap, index);
}
}
Data* getExceptZero(IndexType index) {
Data* res = get(index);
if (!res) return nullptr;
if (!(*res)) return nullptr;
return res;
}
const Data* getExceptZero_const(IndexType index) const {
const Data* res = get_const(index);
if (!res) return nullptr;
if (!(*res)) return nullptr;
return res;
}
void forEach(IterFunc func) {
mComponentManager.forEach(func);
for (auto it : mMap) {
auto handle = index2Handle(it.first);
func(true /* live */, handle, handle, it.second);
}
}
void forEachLive(IterFunc func) {
mComponentManager.forEachLiveComponent(func);
for (auto it : mMap) {
auto handle = index2Handle(it.first);
func(true /* live */, handle, handle, it.second);
}
}
void forEachLive_const(ConstIterFunc func) const {
mComponentManager.forEachLiveComponent_const(func);
for (const auto it : mMap) {
auto handle = index2Handle(it.first);
func(true /* live */, handle, handle, it.second);
}
}
private:
static Handle index2Handle(uint64_t index) {
return EM::makeHandle((uint32_t)index, 1, 1);
}
UCM mComponentManager;
std::unordered_map<IndexType, Data> mMap;
};
} // namespace android
} // namespace base
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