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108 lines
3.1 KiB
108 lines
3.1 KiB
/*
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* Copyright (C) 2017 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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//#define LOG_NDEBUG 0
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#define LOG_TAG "ClearKeySessionLibrary"
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#include <utils/Log.h>
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#include <media/stagefright/foundation/ABuffer.h>
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#include <media/stagefright/foundation/ADebug.h>
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#include "ClearKeySessionLibrary.h"
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namespace android {
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namespace clearkeycas {
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Mutex ClearKeySessionLibrary::sSingletonLock;
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ClearKeySessionLibrary* ClearKeySessionLibrary::sSingleton = NULL;
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ClearKeyCasSession::ClearKeyCasSession(CasPlugin *plugin)
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: mPlugin(plugin) {
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mKeyInfo[0].valid = mKeyInfo[1].valid = false;
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}
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ClearKeyCasSession::~ClearKeyCasSession() {
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}
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ClearKeySessionLibrary* ClearKeySessionLibrary::get() {
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Mutex::Autolock lock(sSingletonLock);
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if (sSingleton == NULL) {
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ALOGV("Instantiating Session Library Singleton.");
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sSingleton = new ClearKeySessionLibrary();
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}
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return sSingleton;
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}
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ClearKeySessionLibrary::ClearKeySessionLibrary() : mNextSessionId(1) {}
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status_t ClearKeySessionLibrary::addSession(
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CasPlugin *plugin, CasSessionId *sessionId) {
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CHECK(sessionId);
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Mutex::Autolock lock(mSessionsLock);
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std::shared_ptr<ClearKeyCasSession> session(new ClearKeyCasSession(plugin));
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uint8_t *byteArray = (uint8_t *) &mNextSessionId;
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sessionId->push_back(byteArray[3]);
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sessionId->push_back(byteArray[2]);
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sessionId->push_back(byteArray[1]);
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sessionId->push_back(byteArray[0]);
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mNextSessionId++;
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mIDToSessionMap.add(*sessionId, session);
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return OK;
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}
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std::shared_ptr<ClearKeyCasSession> ClearKeySessionLibrary::findSession(
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const CasSessionId& sessionId) {
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Mutex::Autolock lock(mSessionsLock);
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ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
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if (index < 0) {
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return NULL;
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}
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return mIDToSessionMap.valueFor(sessionId);
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}
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void ClearKeySessionLibrary::destroySession(const CasSessionId& sessionId) {
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Mutex::Autolock lock(mSessionsLock);
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ssize_t index = mIDToSessionMap.indexOfKey(sessionId);
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if (index < 0) {
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return;
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}
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std::shared_ptr<ClearKeyCasSession> session = mIDToSessionMap.valueAt(index);
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mIDToSessionMap.removeItemsAt(index);
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}
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void ClearKeySessionLibrary::destroyPlugin(CasPlugin *plugin) {
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Mutex::Autolock lock(mSessionsLock);
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for (ssize_t index = (ssize_t)mIDToSessionMap.size() - 1; index >= 0; index--) {
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std::shared_ptr<ClearKeyCasSession> session = mIDToSessionMap.valueAt(index);
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if (session->getPlugin() == plugin) {
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mIDToSessionMap.removeItemsAt(index);
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}
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}
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}
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} // namespace clearkeycas
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} // namespace android
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