1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef DRM_SESSION_MANAGER_H_ 18 19 #define DRM_SESSION_MANAGER_H_ 20 21 #include <media/stagefright/foundation/ABase.h> 22 #include <utils/RefBase.h> 23 #include <utils/KeyedVector.h> 24 #include <utils/threads.h> 25 #include <utils/Vector.h> 26 27 namespace android { 28 29 class DrmSessionManagerTest; 30 struct DrmSessionClientInterface; 31 struct ProcessInfoInterface; 32 33 bool isEqualSessionId(const Vector<uint8_t> &sessionId1, const Vector<uint8_t> &sessionId2); 34 35 struct SessionInfo { 36 sp<DrmSessionClientInterface> drm; 37 Vector<uint8_t> sessionId; 38 int64_t timeStamp; 39 }; 40 41 typedef Vector<SessionInfo > SessionInfos; 42 typedef KeyedVector<int, SessionInfos > PidSessionInfosMap; 43 44 struct DrmSessionManager : public RefBase { 45 static sp<DrmSessionManager> Instance(); 46 47 DrmSessionManager(); 48 DrmSessionManager(sp<ProcessInfoInterface> processInfo); 49 50 void addSession(int pid, sp<DrmSessionClientInterface> drm, const Vector<uint8_t>& sessionId); 51 void useSession(const Vector<uint8_t>& sessionId); 52 void removeSession(const Vector<uint8_t>& sessionId); 53 void removeDrm(sp<DrmSessionClientInterface> drm); 54 bool reclaimSession(int callingPid); 55 56 protected: 57 virtual ~DrmSessionManager(); 58 59 private: 60 friend class DrmSessionManagerTest; 61 62 int64_t getTime_l(); 63 bool getLowestPriority_l(int* lowestPriorityPid, int* lowestPriority); 64 bool getLeastUsedSession_l( 65 int pid, sp<DrmSessionClientInterface>* drm, Vector<uint8_t>* sessionId); 66 67 sp<ProcessInfoInterface> mProcessInfo; 68 mutable Mutex mLock; 69 PidSessionInfosMap mSessionMap; 70 int64_t mTime; 71 72 DISALLOW_EVIL_CONSTRUCTORS(DrmSessionManager); 73 }; 74 75 } // namespace android 76 77 #endif // DRM_SESSION_MANAGER_H_ 78
