16f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten/* 26f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * Copyright (C) 2013 The Android Open Source Project 36f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * 46f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * Licensed under the Apache License, Version 2.0 (the "License"); 56f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * you may not use this file except in compliance with the License. 66f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * You may obtain a copy of the License at 76f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * 86f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * http://www.apache.org/licenses/LICENSE-2.0 96f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * 106f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * Unless required by applicable law or agreed to in writing, software 116f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * distributed under the License is distributed on an "AS IS" BASIS, 126f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 136f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * See the License for the specific language governing permissions and 146f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten * limitations under the License. 156f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten */ 166f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 176f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#ifndef ANDROID_MEDIA_LOG_SERVICE_H 186f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#define ANDROID_MEDIA_LOG_SERVICE_H 196f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 206f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#include <binder/BinderService.h> 216f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#include <media/IMediaLogService.h> 226f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#include <media/nbaio/NBLog.h> 236f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 246f1c1918d0dfece10f728711b055441e4d135c73Glenn Kastennamespace android { 256f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 266f1c1918d0dfece10f728711b055441e4d135c73Glenn Kastenclass MediaLogService : public BinderService<MediaLogService>, public BnMediaLogService 276f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten{ 286f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten friend class BinderService<MediaLogService>; // for MediaLogService() 296f1c1918d0dfece10f728711b055441e4d135c73Glenn Kastenpublic: 30dcdfaecc1fa630a799e1fdb508a9b92da55abc36Nicolas Roulet MediaLogService(); 31dcdfaecc1fa630a799e1fdb508a9b92da55abc36Nicolas Roulet virtual ~MediaLogService() override; 326f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten virtual void onFirstRef() { } 336f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 346f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten static const char* getServiceName() { return "media.log"; } 356f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 366f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten static const size_t kMinSize = 0x100; 376f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten static const size_t kMaxSize = 0x10000; 386f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten virtual void registerWriter(const sp<IMemory>& shared, size_t size, const char *name); 396f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten virtual void unregisterWriter(const sp<IMemory>& shared); 406f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 416f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten virtual status_t dump(int fd, const Vector<String16>& args); 426f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten virtual status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, 436f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten uint32_t flags); 446f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 45dcdfaecc1fa630a799e1fdb508a9b92da55abc36Nicolas Roulet virtual void requestMergeWakeup() override; 46dcdfaecc1fa630a799e1fdb508a9b92da55abc36Nicolas Roulet 476f1c1918d0dfece10f728711b055441e4d135c73Glenn Kastenprivate: 488349a91d0dd017404800dec638298caebab6677eEric Laurent 498349a91d0dd017404800dec638298caebab6677eEric Laurent // Internal dump 508349a91d0dd017404800dec638298caebab6677eEric Laurent static const int kDumpLockRetries = 50; 518349a91d0dd017404800dec638298caebab6677eEric Laurent static const int kDumpLockSleepUs = 20000; 52537ad7dab88ee1b489331094a325726a26b8c1b1Nicolas Roulet // Size of merge buffer, in bytes 53537ad7dab88ee1b489331094a325726a26b8c1b1Nicolas Roulet static const size_t kMergeBufferSize = 64 * 1024; // TODO determine good value for this 548349a91d0dd017404800dec638298caebab6677eEric Laurent static bool dumpTryLock(Mutex& mutex); 558349a91d0dd017404800dec638298caebab6677eEric Laurent 566f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten Mutex mLock; 5740a4498b967d000c93e8561db5fdd0488cc1d824Nicolas Roulet 589c37337c402d6b19c2a2d1ee50002cbf56f3bc78Glenn Kasten Vector<NBLog::NamedReader> mNamedReaders; // protected by mLock 591c446273e6ebfe55ef293a0b7e78525b1b40ce84Glenn Kasten 601c446273e6ebfe55ef293a0b7e78525b1b40ce84Glenn Kasten // FIXME Need comments on all of these, especially about locking 6140a4498b967d000c93e8561db5fdd0488cc1d824Nicolas Roulet NBLog::Shared *mMergerShared; 6240a4498b967d000c93e8561db5fdd0488cc1d824Nicolas Roulet NBLog::Merger mMerger; 6340a4498b967d000c93e8561db5fdd0488cc1d824Nicolas Roulet NBLog::MergeReader mMergeReader; 64dcdfaecc1fa630a799e1fdb508a9b92da55abc36Nicolas Roulet const sp<NBLog::MergeThread> mMergeThread; 656f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten}; 666f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 676f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten} // namespace android 686f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 696f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#endif // ANDROID_MEDIA_LOG_SERVICE_H 70