# ffrt_function_header_t


## Overview

The **ffrt_function_header_t** struct describes a task execution function.

Related module: [FFRT](_f_f_r_t.md)


## Summary


### Member Variables

| Name| Description| 
| -------- | -------- |
| [ffrt_function_t](_f_f_r_t.md#types) [exec](_f_f_r_t.md#exec)| Function used to execute a task.| 
| [ffrt_function_t](_f_f_r_t.md#types) [destroy](_f_f_r_t.md#destroy)| Function used to destroy a task.| 
| uint64_t [reserve](_f_f_r_t.md#reserve)[2] | Reserved bit.|