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/*
* Copyright (C) 2015 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 DRM_SESSION_MANAGER_H_
#define DRM_SESSION_MANAGER_H_
#include <media/stagefright/foundation/ABase.h>
#include <utils/RefBase.h>
#include <utils/KeyedVector.h>
#include <utils/threads.h>
#include <utils/Vector.h>
namespace android {
class DrmSessionManagerTest;
struct DrmSessionClientInterface;
struct ProcessInfoInterface;
bool isEqualSessionId(const Vector<uint8_t> &sessionId1, const Vector<uint8_t> &sessionId2);
struct SessionInfo {
sp<DrmSessionClientInterface> drm;
Vector<uint8_t> sessionId;
int64_t timeStamp;
};
typedef Vector<SessionInfo > SessionInfos;
typedef KeyedVector<int, SessionInfos > PidSessionInfosMap;
struct DrmSessionManager : public RefBase {
static sp<DrmSessionManager> Instance();
DrmSessionManager();
DrmSessionManager(sp<ProcessInfoInterface> processInfo);
void addSession(int pid, sp<DrmSessionClientInterface> drm, const Vector<uint8_t>& sessionId);
void useSession(const Vector<uint8_t>& sessionId);
void removeSession(const Vector<uint8_t>& sessionId);
void removeDrm(sp<DrmSessionClientInterface> drm);
bool reclaimSession(int callingPid);
protected:
virtual ~DrmSessionManager();
private:
friend class DrmSessionManagerTest;
int64_t getTime_l();
bool getLowestPriority_l(int* lowestPriorityPid, int* lowestPriority);
bool getLeastUsedSession_l(
int pid, sp<DrmSessionClientInterface>* drm, Vector<uint8_t>* sessionId);
sp<ProcessInfoInterface> mProcessInfo;
mutable Mutex mLock;
PidSessionInfosMap mSessionMap;
int64_t mTime;
DISALLOW_EVIL_CONSTRUCTORS(DrmSessionManager);
};
} // namespace android
#endif // DRM_SESSION_MANAGER_H_
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