提交 82cffcf2 编写于 作者: A Annie_wang

update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>
上级 67332246
master E0523 OpenHarmony-3.2-Beta1 OpenHarmony-3.2-Beta2 OpenHarmony-3.2-Beta3 OpenHarmony-3.2-Beta4 OpenHarmony-3.2-Beta5 OpenHarmony-3.2-Release OpenHarmony-4.0-Beta1 OpenHarmony-4.0-Beta2 OpenHarmony_filemanager_develop_20220505 OpenHarmony_filemanager_develop_20220614 TR4270 bak_OpenHarmony-4.0-Beta1_20230529 docs-modify feature_IDL_20220811 monthly_20220614 monthly_20220816 monthly_20221018 monthly_20230815 revert-merge-17651-master revert-merge-19334-OpenHarmony-4.0-Beta1 revert-merge-19586-master revert-merge-20613-master revert-merge-21757-OpenHarmony-4.0-Beta2 revert-merge-21765-OpenHarmony-4.0-Beta2 revert-merge-23766-master revert-merge-5580-master weekly_20220419 weekly_20220426 weekly_20220503 weekly_20220510 weekly_20220524 weekly_20220531 weekly_20220607 weekly_20220614 weekly_20220621 weekly_20220628 weekly_20220705 weekly_20220712 weekly_20220719 weekly_20220726 weekly_20220802 weekly_20220809 weekly_20220816 weekly_20220823 weekly_20220830 weekly_20220906 weekly_20220913 weekly_20220920 weekly_20220927 weekly_20221004 weekly_20221011 weekly_20221018 weekly_20221025 weekly_20221101 weekly_20221108 weekly_20221115 weekly_20221122 weekly_20221129 weekly_20221206 weekly_20221213 weekly_20221220 weekly_20221227 weekly_20230103 weekly_20230110 weekly_20230117 weekly_20230124 weekly_20230131 weekly_20230207 weekly_20230214 weekly_20230221 weekly_20230228 weekly_20230307 weekly_20230314 weekly_20230321 weekly_20230328 weekly_20230404 weekly_20230411 weekly_20230418 weekly_20230425 weekly_20230502 weekly_20230509 weekly_20230516 weekly_20230523 weekly_20230530 weekly_20230606 weekly_20230613 weekly_20230619 weekly_20230626 weekly_20230627 weekly_20230704 weekly_20230712 weekly_20230725 weekly_20230801 weekly_20230808 weekly_20230815 weekly_20230822 weekly_20230829 weekly_20230905 OpenHarmony-v4.0-Beta2 OpenHarmony-v4.0-Beta1 OpenHarmony-v3.2.3-Release OpenHarmony-v3.2.2-Release OpenHarmony-v3.2.1-Release OpenHarmony-v3.2-Release OpenHarmony-v3.2-Beta5 OpenHarmony-v3.2-Beta4 OpenHarmony-v3.2-Beta3 OpenHarmony-v3.2-Beta2 OpenHarmony-v3.2-Beta1
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# utils<a name="EN-US_TOPIC_0000001078403148"></a>
# utils<a name="EN-US_TOPIC_0000001092539399"></a>
## Introduction<a name="section11660541593"></a>
The **utils** repository provides ndk_libraries_config and system functions.
The **utils** repository provides common enhanced APIs for development in C and C++.
**C++**
- Enhanced APIs for operations related to files, paths, and strings
- APIs related to the read-write lock, semaphore, timer, thread, and thread pool
- APIs related to the security data container and data serialization
- Error codes for each subsystem
- Safe functions in C
**C**
- Hardware Abstraction Layer (HAL) APIs for performing operations on standard files
- APIs for internal functions, such as the timer
## Directory Structure<a name="section17271017133915"></a>
```
utils
├── native # Utility class implementation at the Native layer
├── ndk_libraries_config # Configuration of the NDK library
└── system # System-related predefined values and security policy configuration
/utils
├── native # Utility class implementation at the native layer
└── system # System-related predefined values and security policy configuration
```
## Usage<a name="section137421544135015"></a>
For details, see the API Reference.
## Repositories Involved<a name="section1249817110914"></a>
Utils subsystem
**utils subsystem**
**utils**
utils
utils\_native
[utils\_native](https://gitee.com/openharmony/utils_native)
[utils\_native\_lite](https://gitee.com/openharmony/utils_native_lite)
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