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/*
* Copyright 2024 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 "SessionLayerMap.h"
#include <android/binder_libbinder.h>
namespace android::adpf {
void SessionLayerMap::notifySessionsDied(std::vector<int32_t>& sessionIds) {
for (int id : sessionIds) {
auto&& iter = mSessions.find(id);
if (iter != mSessions.end()) {
mSessions.erase(iter);
}
}
}
void SessionLayerMap::notifyLayersDied(std::vector<int32_t>& layers) {
for (auto&& layer : layers) {
auto&& iter = mLayers.find(layer);
if (iter != mLayers.end()) {
mLayers.erase(iter);
}
}
}
bool SessionLayerMap::bindSessionIDToLayers(int sessionId, const std::vector<int32_t>& layerIds) {
// If there is no association, just drop from map
if (layerIds.empty()) {
mSessions.erase(sessionId);
return false;
}
// Ensure session exists
if (!mSessions.contains(sessionId)) {
mSessions.emplace(sessionId, MappedType(sessionId, mLayers));
}
MappedType& session = mSessions.at(sessionId);
std::set<int32_t> newLinks;
// For each incoming link
for (auto&& layerId : layerIds) {
auto&& iter = mLayers.find(layerId);
// If it's not in the map, add it
if (iter == mLayers.end()) {
mLayers.emplace(layerId, MappedType(layerId, mSessions));
}
// Make a ref to it in the session's new association map
newLinks.insert(layerId);
}
session.swapLinks(std::move(newLinks));
return true;
}
void SessionLayerMap::getAssociatedSessions(int32_t layerId, std::vector<int32_t>& sessionIdsOut) {
sessionIdsOut.clear();
auto&& iter = mLayers.find(layerId);
if (iter == mLayers.end()) {
return;
}
// Dump the internal association set into this vector
sessionIdsOut.insert(sessionIdsOut.begin(), iter->second.mLinks.begin(),
iter->second.mLinks.end());
}
void SessionLayerMap::getCurrentlyRelevantLayers(
std::unordered_set<int32_t>& currentlyRelevantLayers) {
currentlyRelevantLayers.clear();
for (auto&& layer : mLayers) {
currentlyRelevantLayers.insert(layer.first);
}
}
} // namespace android::adpf
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