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146 lines
4.8 KiB
146 lines
4.8 KiB
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// #define LOG_NDEBUG 0
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#define LOG_TAG "TranscodingClientManager"
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#include <inttypes.h>
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#include <media/TranscodingClientManager.h>
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#include <utils/Log.h>
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namespace android {
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using Status = ::ndk::ScopedAStatus;
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// static
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TranscodingClientManager& TranscodingClientManager::getInstance() {
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static TranscodingClientManager gInstance{};
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return gInstance;
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}
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// static
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void TranscodingClientManager::BinderDiedCallback(void* cookie) {
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int32_t clientId = static_cast<int32_t>(reinterpret_cast<intptr_t>(cookie));
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ALOGD("Client %" PRId32 " is dead", clientId);
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// Don't check for pid validity since we know it's already dead.
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TranscodingClientManager& manager = TranscodingClientManager::getInstance();
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manager.removeClient(clientId);
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}
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TranscodingClientManager::TranscodingClientManager()
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: mDeathRecipient(AIBinder_DeathRecipient_new(BinderDiedCallback)) {
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ALOGD("TranscodingClientManager started");
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}
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TranscodingClientManager::~TranscodingClientManager() {
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ALOGD("TranscodingClientManager exited");
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}
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bool TranscodingClientManager::isClientIdRegistered(int32_t clientId) const {
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std::scoped_lock lock{mLock};
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return mClientIdToClientInfoMap.find(clientId) != mClientIdToClientInfoMap.end();
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}
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void TranscodingClientManager::dumpAllClients(int fd, const Vector<String16>& args __unused) {
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String8 result;
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const size_t SIZE = 256;
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char buffer[SIZE];
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snprintf(buffer, SIZE, " Total num of Clients: %zu\n", mClientIdToClientInfoMap.size());
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result.append(buffer);
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if (mClientIdToClientInfoMap.size() > 0) {
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snprintf(buffer, SIZE, "========== Dumping all clients =========\n");
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result.append(buffer);
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}
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for (const auto& iter : mClientIdToClientInfoMap) {
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const std::shared_ptr<ITranscodingServiceClient> client = iter.second->mClient;
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std::string clientName;
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Status status = client->getName(&clientName);
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if (!status.isOk()) {
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ALOGE("Failed to get client: %d information", iter.first);
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continue;
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}
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snprintf(buffer, SIZE, " -- Clients: %d name: %s\n", iter.first, clientName.c_str());
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result.append(buffer);
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}
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write(fd, result.string(), result.size());
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}
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status_t TranscodingClientManager::addClient(std::unique_ptr<ClientInfo> client) {
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// Validate the client.
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if (client == nullptr || client->mClientId < 0 || client->mClientPid < 0 ||
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client->mClientUid < 0 || client->mClientOpPackageName.empty() ||
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client->mClientOpPackageName == "") {
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ALOGE("Invalid client");
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return BAD_VALUE;
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}
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std::scoped_lock lock{mLock};
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// Check if the client already exists.
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if (mClientIdToClientInfoMap.count(client->mClientId) != 0) {
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ALOGW("Client already exists.");
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return ALREADY_EXISTS;
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}
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ALOGD("Adding client id %d pid: %d uid: %d %s", client->mClientId, client->mClientPid,
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client->mClientUid, client->mClientOpPackageName.c_str());
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AIBinder_linkToDeath(client->mClient->asBinder().get(), mDeathRecipient.get(),
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reinterpret_cast<void*>(client->mClientId));
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// Adds the new client to the map.
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mClientIdToClientInfoMap[client->mClientId] = std::move(client);
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return OK;
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}
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status_t TranscodingClientManager::removeClient(int32_t clientId) {
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ALOGD("Removing client id %d", clientId);
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std::scoped_lock lock{mLock};
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// Checks if the client is valid.
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auto it = mClientIdToClientInfoMap.find(clientId);
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if (it == mClientIdToClientInfoMap.end()) {
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ALOGE("Client id %d does not exist", clientId);
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return INVALID_OPERATION;
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}
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std::shared_ptr<ITranscodingServiceClient> client = it->second->mClient;
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// Check if the client still live. If alive, unlink the death.
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if (client) {
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AIBinder_unlinkToDeath(client->asBinder().get(), mDeathRecipient.get(),
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reinterpret_cast<void*>(clientId));
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}
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// Erase the entry.
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mClientIdToClientInfoMap.erase(it);
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return OK;
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}
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size_t TranscodingClientManager::getNumOfClients() const {
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std::scoped_lock lock{mLock};
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return mClientIdToClientInfoMap.size();
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}
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} // namespace android
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