192b591cdc
In DrmManager, we currently lock both processDrmInfo() and onInfo() which is
ok for now since processDrmInfo() is async call, and it will return without
waiting for onInfo() call. However, if we send an event in processDrmInfo(),
we will got deadlock here because we need to invoke onInf() which will wait
for processDrmInfo() to release the lock. Use different lock for onInfo().
- Remove some redundent mutex lock.
Change-Id: I59c794f95ba1693425723224114fa975cf9b235f
164 lines
5.1 KiB
C++
164 lines
5.1 KiB
C++
/*
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* Copyright (C) 2010 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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#ifndef __DRM_MANAGER_H__
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#define __DRM_MANAGER_H__
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#include <utils/Errors.h>
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#include <utils/threads.h>
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#include <drm/drm_framework_common.h>
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#include "IDrmEngine.h"
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#include "PlugInManager.h"
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#include "IDrmServiceListener.h"
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namespace android {
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class IDrmManager;
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class DrmRegistrationInfo;
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class DrmUnregistrationInfo;
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class DrmRightsAcquisitionInfo;
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class DrmContentIds;
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class DrmConstraints;
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class DrmMetadata;
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class DrmRights;
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class DrmInfo;
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class DrmInfoStatus;
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class DrmConvertedStatus;
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class DrmInfoRequest;
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class DrmSupportInfo;
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class ActionDescription;
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/**
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* This is implementation class for DRM Manager. This class delegates the
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* functionality to corresponding DRM Engine.
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*
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* The DrmManagerService class creates an instance of this class.
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*
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*/
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class DrmManager : public IDrmEngine::OnInfoListener {
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public:
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DrmManager();
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virtual ~DrmManager();
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public:
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int addUniqueId(int uniqueId);
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void removeUniqueId(int uniqueId);
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void addClient(int uniqueId);
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void removeClient(int uniqueId);
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status_t loadPlugIns();
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status_t loadPlugIns(const String8& plugInDirPath);
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status_t unloadPlugIns();
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status_t setDrmServiceListener(
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int uniqueId, const sp<IDrmServiceListener>& drmServiceListener);
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status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
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DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
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DrmMetadata* getMetadata(int uniqueId, const String8* path);
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bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
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DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
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DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
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status_t saveRights(int uniqueId, const DrmRights& drmRights,
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const String8& rightsPath, const String8& contentPath);
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String8 getOriginalMimeType(int uniqueId, const String8& path);
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int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
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int checkRightsStatus(int uniqueId, const String8& path, int action);
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status_t consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
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status_t setPlaybackStatus(
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int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position);
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bool validateAction(
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int uniqueId, const String8& path, int action, const ActionDescription& description);
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status_t removeRights(int uniqueId, const String8& path);
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status_t removeAllRights(int uniqueId);
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int openConvertSession(int uniqueId, const String8& mimeType);
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DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
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DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
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status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
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DecryptHandle* openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length);
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DecryptHandle* openDecryptSession(int uniqueId, const char* uri);
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status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
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status_t initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
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int decryptUnitId, const DrmBuffer* headerInfo);
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status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
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const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV);
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status_t finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
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ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
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void* buffer, ssize_t numBytes, off64_t offset);
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void onInfo(const DrmInfoEvent& event);
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private:
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String8 getSupportedPlugInId(int uniqueId, const String8& path, const String8& mimeType);
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String8 getSupportedPlugInId(const String8& mimeType);
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String8 getSupportedPlugInIdFromPath(int uniqueId, const String8& path);
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bool canHandle(int uniqueId, const String8& path);
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private:
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static Vector<int> mUniqueIdVector;
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static const String8 EMPTY_STRING;
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int mDecryptSessionId;
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int mConvertId;
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Mutex mLock;
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Mutex mListenerLock;
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Mutex mDecryptLock;
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Mutex mConvertLock;
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TPlugInManager<IDrmEngine> mPlugInManager;
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KeyedVector< DrmSupportInfo, String8 > mSupportInfoToPlugInIdMap;
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KeyedVector< int, IDrmEngine*> mConvertSessionMap;
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KeyedVector< int, sp<IDrmServiceListener> > mServiceListeners;
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KeyedVector< int, IDrmEngine*> mDecryptSessionMap;
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};
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};
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#endif /* __DRM_MANAGER_H__ */
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