1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <atomic>
18
19#include "common/all-versions/default/EffectMap.h"
20
21namespace android {
22
23ANDROID_SINGLETON_STATIC_INSTANCE(EffectMap);
24
25// static
26const uint64_t EffectMap::INVALID_ID = 0;
27
28// static
29uint64_t EffectMap::makeUniqueId() {
30    static std::atomic<uint64_t> counter{INVALID_ID + 1};
31    return counter++;
32}
33
34uint64_t EffectMap::add(effect_handle_t handle) {
35    uint64_t newId = makeUniqueId();
36    std::lock_guard<std::mutex> lock(mLock);
37    mEffects.add(newId, handle);
38    return newId;
39}
40
41effect_handle_t EffectMap::get(const uint64_t& id) {
42    std::lock_guard<std::mutex> lock(mLock);
43    ssize_t idx = mEffects.indexOfKey(id);
44    return idx >= 0 ? mEffects[idx] : NULL;
45}
46
47void EffectMap::remove(effect_handle_t handle) {
48    std::lock_guard<std::mutex> lock(mLock);
49    for (size_t i = 0; i < mEffects.size(); ++i) {
50        if (mEffects[i] == handle) {
51            mEffects.removeItemsAt(i);
52            break;
53        }
54    }
55}
56
57}  // namespace android
58