hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
122 lines
4.4 KiB
C++
122 lines
4.4 KiB
C++
/*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef ANDROID_MEDIA_TRANSCODING_CLIENT_MANAGER_H
|
|
#define ANDROID_MEDIA_TRANSCODING_CLIENT_MANAGER_H
|
|
|
|
#include <aidl/android/media/ITranscodingClient.h>
|
|
#include <aidl/android/media/ITranscodingClientCallback.h>
|
|
#include <sys/types.h>
|
|
#include <utils/Condition.h>
|
|
#include <utils/String8.h>
|
|
#include <utils/Vector.h>
|
|
|
|
#include <map>
|
|
#include <mutex>
|
|
#include <unordered_map>
|
|
#include <unordered_set>
|
|
|
|
#include "ControllerClientInterface.h"
|
|
|
|
namespace android {
|
|
|
|
using ::aidl::android::media::ITranscodingClient;
|
|
using ::aidl::android::media::ITranscodingClientCallback;
|
|
|
|
/*
|
|
* TranscodingClientManager manages all the transcoding clients across different processes.
|
|
*
|
|
* TranscodingClientManager manages all the clients's registration/unregistration and clients'
|
|
* information. It also bookkeeps all the clients' information. It also monitors the death of the
|
|
* clients. Upon client's death, it will remove the client from it.
|
|
*
|
|
* TODO(hkuang): Hook up with ResourceManager for resource management.
|
|
* TODO(hkuang): Hook up with MediaMetrics to log all the transactions.
|
|
*/
|
|
class TranscodingClientManager : public std::enable_shared_from_this<TranscodingClientManager> {
|
|
public:
|
|
virtual ~TranscodingClientManager();
|
|
|
|
/**
|
|
* Adds a new client to the manager.
|
|
*
|
|
* The client must have valid callback, pid, uid, clientName and opPackageName.
|
|
* Otherwise, this will return a non-zero errorcode. If the client callback has
|
|
* already been added, it will also return non-zero errorcode.
|
|
*
|
|
* @param callback client callback for the service to call this client.
|
|
* @param clientName client's name.
|
|
* @param opPackageName client's package name.
|
|
* @param client output holding the ITranscodingClient interface for the client
|
|
* to use for subsequent communications with the service.
|
|
* @return 0 if client is added successfully, non-zero errorcode otherwise.
|
|
*/
|
|
status_t addClient(const std::shared_ptr<ITranscodingClientCallback>& callback,
|
|
const std::string& clientName, const std::string& opPackageName,
|
|
std::shared_ptr<ITranscodingClient>* client);
|
|
|
|
/**
|
|
* Gets the number of clients.
|
|
*/
|
|
size_t getNumOfClients() const;
|
|
|
|
/**
|
|
* Dump all the client information to the fd.
|
|
*/
|
|
void dumpAllClients(int fd, const Vector<String16>& args);
|
|
|
|
private:
|
|
friend class MediaTranscodingService;
|
|
friend class TranscodingClientManagerTest;
|
|
struct ClientImpl;
|
|
|
|
// Only allow MediaTranscodingService and unit tests to instantiate.
|
|
TranscodingClientManager(const std::shared_ptr<ControllerClientInterface>& controller);
|
|
|
|
// Checks if a user is trusted (and allowed to submit sessions on behalf of other uids)
|
|
bool isTrustedCaller(pid_t pid, uid_t uid);
|
|
|
|
/**
|
|
* Removes an existing client from the manager.
|
|
*
|
|
* If the client does not exist, this will return non-zero errorcode.
|
|
*
|
|
* @param clientId id of the client to be removed..
|
|
* @return 0 if client is removed successfully, non-zero errorcode otherwise.
|
|
*/
|
|
status_t removeClient(ClientIdType clientId);
|
|
|
|
static void BinderDiedCallback(void* cookie);
|
|
|
|
mutable std::mutex mLock;
|
|
std::unordered_map<ClientIdType, std::shared_ptr<ClientImpl>> mClientIdToClientMap
|
|
GUARDED_BY(mLock);
|
|
std::unordered_set<uintptr_t> mRegisteredCallbacks GUARDED_BY(mLock);
|
|
|
|
::ndk::ScopedAIBinder_DeathRecipient mDeathRecipient;
|
|
|
|
std::shared_ptr<ControllerClientInterface> mSessionController;
|
|
std::unordered_set<uid_t> mTrustedUids;
|
|
|
|
static std::atomic<ClientIdType> sCookieCounter;
|
|
static std::mutex sCookie2ClientLock;
|
|
static std::map<ClientIdType, std::shared_ptr<ClientImpl>> sCookie2Client
|
|
GUARDED_BY(sCookie2ClientLock);
|
|
};
|
|
|
|
} // namespace android
|
|
#endif // ANDROID_MEDIA_TRANSCODING_SERVICE_H
|