Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018 Google, Inc |
| 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 | |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 17 | #ifndef _STATSLOG_H_ |
| 18 | #define _STATSLOG_H_ |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 19 | |
Rajeev Kumar | 1c669f7 | 2018-03-09 15:20:56 -0800 | [diff] [blame] | 20 | #include <assert.h> |
Yao Chen | 389aee1 | 2018-05-02 11:19:27 -0700 | [diff] [blame^] | 21 | #include <stats_event_list.h> |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 22 | #include <stdbool.h> |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 23 | #include <sys/cdefs.h> |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 24 | |
| 25 | #include <cutils/properties.h> |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 26 | |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 27 | __BEGIN_DECLS |
| 28 | |
Rajeev Kumar | 7045003 | 2018-01-31 17:54:56 -0800 | [diff] [blame] | 29 | /* |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 30 | * These are defined in |
| 31 | * http://cs/android/frameworks/base/cmds/statsd/src/atoms.proto |
| 32 | */ |
| 33 | #define LMK_KILL_OCCURRED 51 |
| 34 | #define LMK_STATE_CHANGED 54 |
| 35 | #define LMK_STATE_CHANGE_START 1 |
| 36 | #define LMK_STATE_CHANGE_STOP 2 |
| 37 | |
Rajeev Kumar | 1c669f7 | 2018-03-09 15:20:56 -0800 | [diff] [blame] | 38 | /* |
| 39 | * The single event tag id for all stats logs. |
| 40 | * Keep this in sync with system/core/logcat/event.logtags |
| 41 | */ |
| 42 | const static int kStatsEventTag = 1937006964; |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 43 | |
Rajeev Kumar | 1c669f7 | 2018-03-09 15:20:56 -0800 | [diff] [blame] | 44 | static inline void statslog_init(android_log_context* log_ctx, bool* enable_stats_log) { |
| 45 | assert(log_ctx != NULL); |
| 46 | assert(enable_stats_log != NULL); |
| 47 | *enable_stats_log = property_get_bool("ro.lmk.log_stats", false); |
| 48 | |
| 49 | if (*enable_stats_log) { |
| 50 | *log_ctx = create_android_logger(kStatsEventTag); |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 51 | } |
| 52 | } |
| 53 | |
Rajeev Kumar | 1c669f7 | 2018-03-09 15:20:56 -0800 | [diff] [blame] | 54 | static inline void statslog_destroy(android_log_context* log_ctx) { |
| 55 | assert(log_ctx != NULL); |
| 56 | if (*log_ctx) { |
| 57 | android_log_destroy(log_ctx); |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 58 | } |
| 59 | } |
| 60 | |
| 61 | struct memory_stat { |
| 62 | int64_t pgfault; |
| 63 | int64_t pgmajfault; |
| 64 | int64_t rss_in_bytes; |
| 65 | int64_t cache_in_bytes; |
| 66 | int64_t swap_in_bytes; |
| 67 | }; |
| 68 | |
| 69 | #define MEMCG_PROCESS_MEMORY_STAT_PATH "/dev/memcg/apps/uid_%u/pid_%u/memory.stat" |
| 70 | |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 71 | /** |
| 72 | * Logs the change in LMKD state which is used as start/stop boundaries for logging |
| 73 | * LMK_KILL_OCCURRED event. |
| 74 | * Code: LMK_STATE_CHANGED = 54 |
| 75 | */ |
| 76 | int |
| 77 | stats_write_lmk_state_changed(android_log_context ctx, int32_t code, int32_t state); |
| 78 | |
| 79 | /** |
| 80 | * Logs the event when LMKD kills a process to reduce memory pressure. |
| 81 | * Code: LMK_KILL_OCCURRED = 51 |
| 82 | */ |
| 83 | int |
| 84 | stats_write_lmk_kill_occurred(android_log_context ctx, int32_t code, int32_t uid, |
| 85 | char const* process_name, int32_t oom_score, int64_t pgfault, |
| 86 | int64_t pgmajfault, int64_t rss_in_bytes, int64_t cache_in_bytes, |
| 87 | int64_t swap_in_bytes); |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 88 | |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 89 | __END_DECLS |
Mark Salyzyn | 61421ba | 2018-02-01 09:54:32 -0800 | [diff] [blame] | 90 | |
| 91 | #endif /* _STATSLOG_H_ */ |