1 # Utils 2 3 ## Introduction 4 5 Utils provides OpenHarmony basic components, which provide enhanced C, C++, and JS APIs for OpenHarmony service subsystems and upper-layer applications. Utils provides the following components in **/commonlibrary**: 6 ``` 7 /commonlibrary 8 ├── c_utils # c and c++ utils. 9 ├── ets_utils # extended TypeScript (eTS) utils. 10 └── utils_lite # Utils in c and JS for LiteOS. 11 ``` 12 The following lists the functions provided by each utils. 13 14 **c_utils** 15 16 - Enhanced APIs for operations related to files, paths, and strings 17 - APIs for read/write locks, semaphores, timers, threads, and thread pools 18 - APIs for security data containers and data serialization 19 - Error codes for each subsystem 20 21 **ets_utils** 22 23 - JS APIs for URI, URL, and XML operations 24 - JS APIs for string encoding and decoding 25 - JS APIs for process-related operations 26 - Multithreading capability in JS 27 28 **utils_lite** 29 30 - Hardware Abstraction Layer (HAL) APIs for file operations 31 - APIs for internal functions, such as the timer 32 33 ## Related Documents 34 [Utils Development Guide](https://gitee.com/openharmony/docs/blob/master/en/device-dev/subsystems/subsys-utils-guide.md) 35 36 ## Repositories Involved 37 38 **Utils** 39 40 41 [commonlibrary\_c\_utils](https://gitee.com/openharmony/commonlibrary_c_utils) 42 43 [commonlibrary\_ets\_utils](https://gitee.com/openharmony/commonlibrary_ets_utils) 44 45 [commonlibrary\_utils\_lite](https://gitee.com/openharmony/commonlibrary_utils_lite) 46