Suren Baghdasaryan | 0f10051 | 2018-01-24 16:51:41 -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 | #ifndef _LIBLMKD_UTILS_H_ |
| 18 | #define _LIBLMKD_UTILS_H_ |
| 19 | |
| 20 | #include <sys/cdefs.h> |
| 21 | #include <sys/types.h> |
| 22 | |
| 23 | #include <lmkd.h> |
| 24 | |
| 25 | __BEGIN_DECLS |
| 26 | |
| 27 | /* |
| 28 | * Connects to lmkd process and returns socket handle. |
| 29 | * On success returns socket handle. |
| 30 | * On error, -1 is returned, and errno is set appropriately. |
| 31 | */ |
| 32 | int lmkd_connect(); |
| 33 | |
| 34 | /* |
| 35 | * Registers a process with lmkd and sets its oomadj score. |
| 36 | * On success returns 0. |
| 37 | * On error, -1 is returned. |
| 38 | * In the case of error errno is set appropriately. |
| 39 | */ |
| 40 | int lmkd_register_proc(int sock, struct lmk_procprio *params); |
| 41 | |
| 42 | /* |
| 43 | * Creates memcg directory for given process. |
| 44 | * On success returns 0. |
| 45 | * -1 is returned if path creation failed. |
| 46 | * -2 is returned if tasks file open operation failed. |
| 47 | * -3 is returned if tasks file write operation failed. |
| 48 | * In the case of error errno is set appropriately. |
| 49 | */ |
| 50 | int create_memcg(uid_t uid, pid_t pid); |
| 51 | |
| 52 | __END_DECLS |
| 53 | |
| 54 | #endif /* _LIBLMKD_UTILS_H_ */ |