# ohos_pool

**Repository Path**: wahaha949/ohos_pool

## Basic Information

- **Project Name**: ohos_pool
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: BSD-3-Clause
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2025-07-30
- **Last Updated**: 2025-07-31

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# @protobufjs/pool

## 简介
> @protobufjs/pool 是一个通用缓冲池

## 下载安装
```shell
ohpm install @protobuf/pool
```
OpenHarmony ohpm环境配置等更多内容，请参考 [如何安装OpenHarmony ohpm包](https://gitcode.com/openharmony-tpc/docs/blob/master/OpenHarmony_har_usage.md) 。

## 使用说明

### 引用及使用
```
import {pool} from "@protobuf/pool"

const baseAlloc = (size: number) => {
  hilog.info(0x000, "xxxx", "分配新内存:" + size + '');
  logs.push("分配新内存:" + size)
  return new Uint8Array(size);
};

const pooledAlloc = pool(baseAlloc, 4096);

function processData() {
  const buf1: Uint8Array = pooledAlloc(100);
  hilog.info(0x000, "xxxx", "测试:" + JSON.stringify(buf1));
  let test: FixedArray<Int> =[1, 2, 3]
  buf1.set(test,0);

  const buf2: Uint8Array = pooledAlloc(200);
  let test2: FixedArray<Int> =[4, 5, 6]
  buf2.set(test2, 0);

  const buf3 = pooledAlloc(50);
  logs.push("偏移对齐后:" + buf3.byteOffset)

  const largeBuf = pooledAlloc(3000);
  logs.push("缓冲区1:" + '缓冲区1:' + buf1.length)
  logs.push("缓冲区2:" + '缓冲区2:' + buf2.length)
  logs.push("大缓冲区:" + '大缓冲区:' + largeBuf.length)
}

processData();
```

## 接口说明
1. 创建通用缓冲池
   `pool(alloc: PoolAllocator, slice: PoolSlicer, size?: number): PoolAllocator`

## 约束与限制
在下述版本验证通过：

-  DevEco Studio: 6.0.0.33, SDK: API20 (6.0.0)

## 目录结构
````
|---- ohos__pool
|     |---- entry  # 示例代码文件夹
|           |---- src/main/ets/page
|                                  |---- Index # sample
|     |---- library
|           |---- src/main/ets/page
|                                  |---- pool.ets  # pool核心实现

|     |---- README_zh.md  # 安装使用方法
|     |---- README.OpenSource  # 开源说明
|     |---- CHANGELOG.md  # 更新日志                
````

## 贡献代码
使用过程中发现任何问题都可以提 [Issue](https://gitee.com/openharmony-tpc-incubate/ohos_pool/issues) 给组件，当然，也非常欢迎发 [PR](https://gitee.com/openharmony-tpc-incubate/ohos_pool/pulls)共建。

## 开源协议
本项目基于 [BSD License](https://gitee.com/openharmony-tpc-incubate/ohos_pool/blob/master/ohos_pool/LICENSE) ，请自由地享受和参与开源。