MediaLogService.h revision 8349a91d0dd017404800dec638298caebab6677e
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: 306f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten MediaLogService() : BnMediaLogService() { } 316f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten virtual ~MediaLogService() { } 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 456f1c1918d0dfece10f728711b055441e4d135c73Glenn Kastenprivate: 468349a91d0dd017404800dec638298caebab6677eEric Laurent 478349a91d0dd017404800dec638298caebab6677eEric Laurent // Internal dump 488349a91d0dd017404800dec638298caebab6677eEric Laurent static const int kDumpLockRetries = 50; 498349a91d0dd017404800dec638298caebab6677eEric Laurent static const int kDumpLockSleepUs = 20000; 508349a91d0dd017404800dec638298caebab6677eEric Laurent static bool dumpTryLock(Mutex& mutex); 518349a91d0dd017404800dec638298caebab6677eEric Laurent 526f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten Mutex mLock; 536f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten class NamedReader { 546f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten public: 556f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten NamedReader() : mReader(0) { mName[0] = '\0'; } // for Vector 566f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten NamedReader(const sp<NBLog::Reader>& reader, const char *name) : mReader(reader) 576f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten { strlcpy(mName, name, sizeof(mName)); } 586f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten ~NamedReader() { } 596f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten const sp<NBLog::Reader>& reader() const { return mReader; } 606f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten const char* name() const { return mName; } 616f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten private: 626f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten sp<NBLog::Reader> mReader; 636f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten static const size_t kMaxName = 32; 646f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten char mName[kMaxName]; 656f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten }; 666f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten Vector<NamedReader> mNamedReaders; 676f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten}; 686f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 696f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten} // namespace android 706f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten 716f1c1918d0dfece10f728711b055441e4d135c73Glenn Kasten#endif // ANDROID_MEDIA_LOG_SERVICE_H 72