1# ffrt_mutex_t 2 3 4## Overview 5 6The **ffrt_mutex_t** struct describes an FFRT mutex. 7 8**Since**: 10 9 10**Related module**: [FFRT](_f_f_r_t.md) 11 12 13## Summary 14 15 16### Member Variables 17 18| Name| Description| 19| -------- | -------- | 20| uint32_t [storage](#storage) [(ffrt_mutex_storage_size+sizeof(uint32_t) - 1)/sizeof(uint32_t)] | Storage size of a mutex. | 21 22 23## Member Variable Description 24 25 26### storage 27 28``` 29uint32_t ffrt_mutex_t::storage[(ffrt_mutex_storage_size+sizeof(uint32_t) - 1)/sizeof(uint32_t)] 30``` 31**Description** 32Storage size of a mutex. 33