---
title: SetStreamId
description: "设置Task的流id。"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/maintenref/basicdataapi/atlasopapi_07_00677.html
sourcePath: /source/zh/canncommercial/900/maintenref/basicdataapi/atlasopapi_07_00677.html
indexId: c1a61e41408f57aabe6caef314da5d1da947a3414a5d72057f0941061636e04b78
---
# SetStreamId

#### 函数功能

设置Task的流id。


#### 函数原型

```
void SetStreamId(uint32_t stream_id)
```


#### 参数说明

| 参数 | 输入/输出 | 说明 |
| --- | --- | --- |
| stream\_id | 输入 | 流id。 |


#### 返回值说明

无


#### 约束说明

无


#### 调用示例

```
graphStatus Mc2GenTaskCallback(const gert::ExeResGenerationContext *context,
    std::vector<std::vector<uint8_t>> &tasks) {
  auto wait_task = KernelLaunchInfo::CreateHcomWaitTask(context);
  wait_task.SetStreamId(attach_stream_id);
}
```