| /* |
| * Copyright (C) 2012-2014 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _LOGD_LOG_BUFFER_H__ |
| #define _LOGD_LOG_BUFFER_H__ |
| |
| #include <sys/types.h> |
| |
| #include <log/log.h> |
| #include <sysutils/SocketClient.h> |
| #include <utils/List.h> |
| |
| #include <private/android_filesystem_config.h> |
| |
| #include "LogBufferElement.h" |
| #include "LogTimes.h" |
| #include "LogStatistics.h" |
| #include "LogWhiteBlackList.h" |
| |
| typedef android::List<LogBufferElement *> LogBufferElementCollection; |
| |
| class LogBuffer { |
| LogBufferElementCollection mLogElements; |
| pthread_mutex_t mLogElementsLock; |
| |
| LogStatistics stats; |
| |
| PruneList mPrune; |
| |
| unsigned long mMaxSize[LOG_ID_MAX]; |
| |
| public: |
| LastLogTimes &mTimes; |
| |
| LogBuffer(LastLogTimes *times); |
| void init(); |
| |
| int log(log_id_t log_id, log_time realtime, |
| uid_t uid, pid_t pid, pid_t tid, |
| const char *msg, unsigned short len); |
| uint64_t flushTo(SocketClient *writer, const uint64_t start, |
| bool privileged, |
| int (*filter)(const LogBufferElement *element, void *arg) = NULL, |
| void *arg = NULL); |
| |
| void clear(log_id_t id, uid_t uid = AID_ROOT); |
| unsigned long getSize(log_id_t id); |
| int setSize(log_id_t id, unsigned long size); |
| unsigned long getSizeUsed(log_id_t id); |
| // *strp uses malloc, use free to release. |
| void formatStatistics(char **strp, uid_t uid, unsigned int logMask); |
| |
| void enableStatistics() { |
| stats.enableStatistics(); |
| } |
| |
| int initPrune(char *cp) { return mPrune.init(cp); } |
| // *strp uses malloc, use free to release. |
| void formatPrune(char **strp) { mPrune.format(strp); } |
| |
| // helper |
| char *pidToName(pid_t pid) { return stats.pidToName(pid); } |
| uid_t pidToUid(pid_t pid) { return stats.pidToUid(pid); } |
| char *uidToName(uid_t uid) { return stats.uidToName(uid); } |
| |
| private: |
| void maybePrune(log_id_t id); |
| void prune(log_id_t id, unsigned long pruneRows, uid_t uid = AID_ROOT); |
| LogBufferElementCollection::iterator erase(LogBufferElementCollection::iterator it); |
| }; |
| |
| #endif // _LOGD_LOG_BUFFER_H__ |