1 /* 2 * Copyright (C) 2014 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 //#define LOG_NDEBUG 0 18 #define LOG_TAG "ClearKeyCryptoPlugin" 19 #include <utils/Log.h> 20 21 #include <utils/String8.h> 22 23 #include "SessionLibrary.h" 24 25 namespace clearkeydrm { 26 27 using android::Mutex; 28 using android::sp; 29 using android::String8; 30 using android::Vector; 31 32 Mutex SessionLibrary::sSingletonLock; 33 SessionLibrary* SessionLibrary::sSingleton = NULL; 34 get()35SessionLibrary* SessionLibrary::get() { 36 Mutex::Autolock lock(sSingletonLock); 37 38 if (sSingleton == NULL) { 39 ALOGD("Instantiating Session Library Singleton."); 40 sSingleton = new SessionLibrary(); 41 } 42 43 return sSingleton; 44 } 45 createSession()46const sp<Session>& SessionLibrary::createSession() { 47 Mutex::Autolock lock(mSessionsLock); 48 49 String8 sessionIdString = String8::format("%u", mNextSessionId); 50 mNextSessionId += 1; 51 Vector<uint8_t> sessionId; 52 sessionId.appendArray( 53 reinterpret_cast<const uint8_t*>(sessionIdString.string()), 54 sessionIdString.size()); 55 56 mSessions.add(sessionId, new Session(sessionId)); 57 return mSessions.valueFor(sessionId); 58 } 59 findSession(const Vector<uint8_t> & sessionId)60const sp<Session>& SessionLibrary::findSession( 61 const Vector<uint8_t>& sessionId) { 62 Mutex::Autolock lock(mSessionsLock); 63 return mSessions.valueFor(sessionId); 64 } 65 destroySession(const sp<Session> & session)66void SessionLibrary::destroySession(const sp<Session>& session) { 67 Mutex::Autolock lock(mSessionsLock);\ 68 mSessions.removeItem(session->sessionId()); 69 } 70 71 } // namespace clearkeydrm 72