---
title: aclrtIpcEventHandle
description: "```"
url: https://www.hiascend.com/document/detail/zh/CANNCommunityEdition/latest/API/runtimeapi/aclcppdevg_03_2094.html
sourcePath: /source/zh/CANNCommunityEdition/920beta2/API/runtimeapi/aclcppdevg_03_2094.html
indexId: d5eaf8c4ac3a8d2e7788e0c8e335a60acab082e3b0e318e7fe88e732d444d9ea79
---
# aclrtIpcEventHandle

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