---
title: aclrtIpcEventHandle
description: "```"
url: https://www.hiascend.com/document/detail/zh/canncommercial/latest/API/runtimeapi/aclcppdevg_03_2094.html
sourcePath: /source/zh/canncommercial/900/API/runtimeapi/aclcppdevg_03_2094.html
indexId: d57d6f149cb4421edc31ff15c46b982cb0450155a74039f35efc7e173a71eb8e68
---
# aclrtIpcEventHandle

```
#define ACL_IPC_EVENT_HANDLE_SIZE 64U
typedef struct aclrtIpcEventHandle {
    char reserved[ACL_IPC_EVENT_HANDLE_SIZE];
} aclrtIpcEventHandle;
```