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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.
*/
// #define LOG_NDEBUG 0
#define LOG_TAG "TranscodingClientManager"
#include <inttypes.h>
#include <media/TranscodingClientManager.h>
#include <utils/Log.h>
namespace android {
using Status = ::ndk::ScopedAStatus;
// static
TranscodingClientManager& TranscodingClientManager::getInstance() {
static TranscodingClientManager gInstance{};
return gInstance;
}
// static
void TranscodingClientManager::BinderDiedCallback(void* cookie) {
int32_t clientId = static_cast<int32_t>(reinterpret_cast<intptr_t>(cookie));
ALOGD("Client %" PRId32 " is dead", clientId);
// Don't check for pid validity since we know it's already dead.
TranscodingClientManager& manager = TranscodingClientManager::getInstance();
manager.removeClient(clientId);
}
TranscodingClientManager::TranscodingClientManager()
: mDeathRecipient(AIBinder_DeathRecipient_new(BinderDiedCallback)) {
ALOGD("TranscodingClientManager started");
}
TranscodingClientManager::~TranscodingClientManager() {
ALOGD("TranscodingClientManager exited");
}
bool TranscodingClientManager::isClientIdRegistered(int32_t clientId) const {
std::scoped_lock lock{mLock};
return mClientIdToClientInfoMap.find(clientId) != mClientIdToClientInfoMap.end();
}
void TranscodingClientManager::dumpAllClients(int fd, const Vector<String16>& args __unused) {
String8 result;
const size_t SIZE = 256;
char buffer[SIZE];
snprintf(buffer, SIZE, " Total num of Clients: %zu\n", mClientIdToClientInfoMap.size());
result.append(buffer);
if (mClientIdToClientInfoMap.size() > 0) {
snprintf(buffer, SIZE, "========== Dumping all clients =========\n");
result.append(buffer);
}
for (const auto& iter : mClientIdToClientInfoMap) {
const std::shared_ptr<ITranscodingServiceClient> client = iter.second->mClient;
std::string clientName;
Status status = client->getName(&clientName);
if (!status.isOk()) {
ALOGE("Failed to get client: %d information", iter.first);
continue;
}
snprintf(buffer, SIZE, " -- Clients: %d name: %s\n", iter.first, clientName.c_str());
result.append(buffer);
}
write(fd, result.string(), result.size());
}
status_t TranscodingClientManager::addClient(std::unique_ptr<ClientInfo> client) {
// Validate the client.
if (client == nullptr || client->mClientId < 0 || client->mClientPid < 0 ||
client->mClientUid < 0 || client->mClientOpPackageName.empty() ||
client->mClientOpPackageName == "") {
ALOGE("Invalid client");
return BAD_VALUE;
}
std::scoped_lock lock{mLock};
// Check if the client already exists.
if (mClientIdToClientInfoMap.count(client->mClientId) != 0) {
ALOGW("Client already exists.");
return ALREADY_EXISTS;
}
ALOGD("Adding client id %d pid: %d uid: %d %s", client->mClientId, client->mClientPid,
client->mClientUid, client->mClientOpPackageName.c_str());
AIBinder_linkToDeath(client->mClient->asBinder().get(), mDeathRecipient.get(),
reinterpret_cast<void*>(client->mClientId));
// Adds the new client to the map.
mClientIdToClientInfoMap[client->mClientId] = std::move(client);
return OK;
}
status_t TranscodingClientManager::removeClient(int32_t clientId) {
ALOGD("Removing client id %d", clientId);
std::scoped_lock lock{mLock};
// Checks if the client is valid.
auto it = mClientIdToClientInfoMap.find(clientId);
if (it == mClientIdToClientInfoMap.end()) {
ALOGE("Client id %d does not exist", clientId);
return INVALID_OPERATION;
}
std::shared_ptr<ITranscodingServiceClient> client = it->second->mClient;
// Check if the client still live. If alive, unlink the death.
if (client) {
AIBinder_unlinkToDeath(client->asBinder().get(), mDeathRecipient.get(),
reinterpret_cast<void*>(clientId));
}
// Erase the entry.
mClientIdToClientInfoMap.erase(it);
return OK;
}
size_t TranscodingClientManager::getNumOfClients() const {
std::scoped_lock lock{mLock};
return mClientIdToClientInfoMap.size();
}
} // namespace android
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