| Jeff Sharkey | 9685194 | 2012-08-27 15:03:37 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2012 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 __CUTILS_FS_H |
| 18 | #define __CUTILS_FS_H |
| 19 | |
| 20 | #include <sys/types.h> |
| 21 | |
| 22 | #ifdef __cplusplus |
| 23 | extern "C" { |
| 24 | #endif |
| 25 | |
| 26 | /* |
| 27 | * Ensure that directory exists with given mode and owners. |
| 28 | */ |
| 29 | extern int fs_prepare_dir(const char* path, mode_t mode, uid_t uid, gid_t gid); |
| 30 | |
| 31 | /* |
| 32 | * Read single plaintext integer from given file, correctly handling files |
| 33 | * partially written with fs_write_atomic_int(). |
| 34 | */ |
| 35 | extern int fs_read_atomic_int(const char* path, int* value); |
| 36 | |
| 37 | /* |
| 38 | * Write single plaintext integer to given file, creating backup while |
| 39 | * in progress. |
| 40 | */ |
| 41 | extern int fs_write_atomic_int(const char* path, int value); |
| 42 | |
| 43 | #ifdef __cplusplus |
| 44 | } |
| 45 | #endif |
| 46 | |
| 47 | #endif /* __CUTILS_FS_H */ |