Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012-2013 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 | #ifndef _LOGD_LOG_TIMES_H__ |
| 18 | #define _LOGD_LOG_TIMES_H__ |
| 19 | |
| 20 | #include <pthread.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 21 | #include <sys/types.h> |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 22 | #include <time.h> |
Mark Salyzyn | 98dca2d | 2015-08-19 13:10:14 -0700 | [diff] [blame] | 23 | |
| 24 | #include <list> |
| 25 | |
Mark Salyzyn | aeaaf81 | 2016-09-30 13:30:33 -0700 | [diff] [blame] | 26 | #include <log/log.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 27 | #include <sysutils/SocketClient.h> |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 28 | |
| 29 | class LogReader; |
Mark Salyzyn | 317bfb9 | 2016-02-23 08:55:43 -0800 | [diff] [blame] | 30 | class LogBufferElement; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 31 | |
| 32 | class LogTimeEntry { |
| 33 | static pthread_mutex_t timesLock; |
| 34 | unsigned int mRefCount; |
| 35 | bool mRelease; |
| 36 | bool mError; |
| 37 | bool threadRunning; |
Mark Salyzyn | 047cc07 | 2015-06-04 13:35:30 -0700 | [diff] [blame] | 38 | bool leadingDropped; |
Mark Salyzyn | a16f761 | 2014-08-07 08:16:52 -0700 | [diff] [blame] | 39 | pthread_cond_t threadTriggeredCondition; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 40 | pthread_t mThread; |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 41 | LogReader& mReader; |
| 42 | static void* threadStart(void* me); |
| 43 | static void threadStop(void* me); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 44 | const unsigned int mLogMask; |
| 45 | const pid_t mPid; |
TraianX Schiau | da6495d | 2014-12-17 10:53:41 +0200 | [diff] [blame] | 46 | unsigned int skipAhead[LOG_ID_MAX]; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 47 | unsigned long mCount; |
| 48 | unsigned long mTail; |
| 49 | unsigned long mIndex; |
| 50 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 51 | public: |
| 52 | LogTimeEntry(LogReader& reader, SocketClient* client, bool nonBlock, |
Mark Salyzyn | fa3716b | 2014-02-14 16:05:05 -0800 | [diff] [blame] | 53 | unsigned long tail, unsigned int logMask, pid_t pid, |
Mark Salyzyn | b75cce0 | 2015-11-30 11:35:56 -0800 | [diff] [blame] | 54 | uint64_t start, uint64_t timeout); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 55 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 56 | SocketClient* mClient; |
Mark Salyzyn | f7c0f75 | 2015-03-03 13:39:37 -0800 | [diff] [blame] | 57 | uint64_t mStart; |
Mark Salyzyn | b75cce0 | 2015-11-30 11:35:56 -0800 | [diff] [blame] | 58 | struct timespec mTimeout; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 59 | const bool mNonBlock; |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 60 | const uint64_t mEnd; // only relevant if mNonBlock |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 61 | |
| 62 | // Protect List manipulations |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 63 | static void lock(void) { |
| 64 | pthread_mutex_lock(×Lock); |
| 65 | } |
| 66 | static void unlock(void) { |
| 67 | pthread_mutex_unlock(×Lock); |
| 68 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 69 | |
| 70 | void startReader_Locked(void); |
| 71 | |
Mark Salyzyn | c03e72c | 2014-02-18 11:23:53 -0800 | [diff] [blame] | 72 | bool runningReader_Locked(void) const { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 73 | return threadRunning || mRelease || mError || mNonBlock; |
| 74 | } |
Mark Salyzyn | a16f761 | 2014-08-07 08:16:52 -0700 | [diff] [blame] | 75 | void triggerReader_Locked(void) { |
| 76 | pthread_cond_signal(&threadTriggeredCondition); |
| 77 | } |
| 78 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 79 | void triggerSkip_Locked(log_id_t id, unsigned int skip) { |
| 80 | skipAhead[id] = skip; |
| 81 | } |
TraianX Schiau | da6495d | 2014-12-17 10:53:41 +0200 | [diff] [blame] | 82 | void cleanSkip_Locked(void); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 83 | |
Mark Salyzyn | c348416 | 2016-03-01 14:59:32 -0800 | [diff] [blame] | 84 | // These called after LogTimeEntry removed from list, lock implicitly held |
| 85 | void release_nodelete_Locked(void) { |
| 86 | mRelease = true; |
| 87 | pthread_cond_signal(&threadTriggeredCondition); |
| 88 | // assumes caller code path will call decRef_Locked() |
| 89 | } |
| 90 | |
Mark Salyzyn | c03e72c | 2014-02-18 11:23:53 -0800 | [diff] [blame] | 91 | void release_Locked(void) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 92 | mRelease = true; |
Mark Salyzyn | a16f761 | 2014-08-07 08:16:52 -0700 | [diff] [blame] | 93 | pthread_cond_signal(&threadTriggeredCondition); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 94 | if (mRefCount || threadRunning) { |
| 95 | return; |
| 96 | } |
| 97 | // No one else is holding a reference to this |
| 98 | delete this; |
| 99 | } |
| 100 | |
| 101 | // Called to mark socket in jeopardy |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 102 | void error_Locked(void) { |
| 103 | mError = true; |
| 104 | } |
| 105 | void error(void) { |
| 106 | lock(); |
| 107 | error_Locked(); |
| 108 | unlock(); |
| 109 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 110 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 111 | bool isError_Locked(void) const { |
| 112 | return mRelease || mError; |
| 113 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 114 | |
| 115 | // Mark Used |
| 116 | // Locking implied, grabbed when protection around loop iteration |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 117 | void incRef_Locked(void) { |
| 118 | ++mRefCount; |
| 119 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 120 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 121 | bool owned_Locked(void) const { |
| 122 | return mRefCount != 0; |
| 123 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 124 | |
Mark Salyzyn | c03e72c | 2014-02-18 11:23:53 -0800 | [diff] [blame] | 125 | void decRef_Locked(void) { |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 126 | if ((mRefCount && --mRefCount) || !mRelease || threadRunning) { |
| 127 | return; |
| 128 | } |
| 129 | // No one else is holding a reference to this |
| 130 | delete this; |
| 131 | } |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 132 | bool isWatching(log_id_t id) { |
| 133 | return (mLogMask & (1 << id)) != 0; |
| 134 | } |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 135 | // flushTo filter callbacks |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 136 | static int FilterFirstPass(const LogBufferElement* element, void* me); |
| 137 | static int FilterSecondPass(const LogBufferElement* element, void* me); |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 138 | }; |
| 139 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 140 | typedef std::list<LogTimeEntry*> LastLogTimes; |
Mark Salyzyn | 0175b07 | 2014-02-26 09:50:16 -0800 | [diff] [blame] | 141 | |
Mark Salyzyn | 501c373 | 2017-03-10 14:31:54 -0800 | [diff] [blame^] | 142 | #endif // _LOGD_LOG_TIMES_H__ |