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 | |
| 17 | #include <assert.h> |
| 18 | #include <errno.h> |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 19 | #include <log/log_id.h> |
Yao Chen | 389aee1 | 2018-05-02 11:19:27 -0700 | [diff] [blame] | 20 | #include <stats_event_list.h> |
| 21 | #include <time.h> |
| 22 | |
| 23 | static int64_t getElapsedRealTimeNs() { |
| 24 | struct timespec t; |
| 25 | t.tv_sec = t.tv_nsec = 0; |
| 26 | clock_gettime(CLOCK_BOOTTIME, &t); |
| 27 | return (int64_t)t.tv_sec * 1000000000LL + t.tv_nsec; |
| 28 | } |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 29 | |
| 30 | /** |
| 31 | * Logs the change in LMKD state which is used as start/stop boundaries for logging |
| 32 | * LMK_KILL_OCCURRED event. |
| 33 | * Code: LMK_STATE_CHANGED = 54 |
| 34 | */ |
| 35 | int |
| 36 | stats_write_lmk_state_changed(android_log_context ctx, int32_t code, int32_t state) { |
| 37 | assert(ctx != NULL); |
| 38 | int ret = -EINVAL; |
| 39 | if (!ctx) { |
| 40 | return ret; |
| 41 | } |
| 42 | |
Yao Chen | 389aee1 | 2018-05-02 11:19:27 -0700 | [diff] [blame] | 43 | reset_log_context(ctx); |
| 44 | |
| 45 | if ((ret = android_log_write_int64(ctx, getElapsedRealTimeNs())) < 0) { |
| 46 | return ret; |
| 47 | } |
| 48 | |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 49 | if ((ret = android_log_write_int32(ctx, code)) < 0) { |
| 50 | return ret; |
| 51 | } |
| 52 | |
| 53 | if ((ret = android_log_write_int32(ctx, state)) < 0) { |
| 54 | return ret; |
| 55 | } |
Yao Chen | 389aee1 | 2018-05-02 11:19:27 -0700 | [diff] [blame] | 56 | |
| 57 | return write_to_logger(ctx, LOG_ID_STATS); |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | /** |
| 61 | * Logs the event when LMKD kills a process to reduce memory pressure. |
| 62 | * Code: LMK_KILL_OCCURRED = 51 |
| 63 | */ |
| 64 | int |
| 65 | stats_write_lmk_kill_occurred(android_log_context ctx, int32_t code, int32_t uid, |
| 66 | char const* process_name, int32_t oom_score, int64_t pgfault, |
| 67 | int64_t pgmajfault, int64_t rss_in_bytes, int64_t cache_in_bytes, |
| 68 | int64_t swap_in_bytes) { |
| 69 | assert(ctx != NULL); |
| 70 | int ret = -EINVAL; |
| 71 | if (!ctx) { |
| 72 | return ret; |
| 73 | } |
Yao Chen | 389aee1 | 2018-05-02 11:19:27 -0700 | [diff] [blame] | 74 | reset_log_context(ctx); |
| 75 | |
| 76 | if ((ret = android_log_write_int64(ctx, getElapsedRealTimeNs())) < 0) { |
| 77 | return ret; |
| 78 | } |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 79 | |
| 80 | if ((ret = android_log_write_int32(ctx, code)) < 0) { |
| 81 | return ret; |
| 82 | } |
| 83 | |
| 84 | if ((ret = android_log_write_int32(ctx, uid)) < 0) { |
| 85 | return ret; |
| 86 | } |
| 87 | |
| 88 | if ((ret = android_log_write_string8(ctx, (process_name == NULL) ? "" : process_name)) < 0) { |
| 89 | return ret; |
| 90 | } |
| 91 | |
| 92 | if ((ret = android_log_write_int32(ctx, oom_score)) < 0) { |
| 93 | return ret; |
| 94 | } |
| 95 | |
| 96 | if ((ret = android_log_write_int64(ctx, pgfault)) < 0) { |
| 97 | return ret; |
| 98 | } |
| 99 | |
| 100 | if ((ret = android_log_write_int64(ctx, pgmajfault)) < 0) { |
| 101 | return ret; |
| 102 | } |
| 103 | |
| 104 | if ((ret = android_log_write_int64(ctx, rss_in_bytes)) < 0) { |
| 105 | return ret; |
| 106 | } |
| 107 | |
| 108 | if ((ret = android_log_write_int64(ctx, cache_in_bytes)) < 0) { |
| 109 | return ret; |
| 110 | } |
| 111 | |
| 112 | if ((ret = android_log_write_int64(ctx, swap_in_bytes)) < 0) { |
| 113 | return ret; |
| 114 | } |
| 115 | |
Yao Chen | 389aee1 | 2018-05-02 11:19:27 -0700 | [diff] [blame] | 116 | return write_to_logger(ctx, LOG_ID_STATS); |
Rajeev Kumar | f0216a8 | 2018-01-24 14:40:36 -0800 | [diff] [blame] | 117 | } |