hi_mpi_sys_close_epoll

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product / Atlas A3 inference product	√
Atlas A2 training product / Atlas A2 inference product	√
Atlas 200I/500 A2 inference product	√
Atlas inference product	√
Atlas training product	☓

Function Description

Closes the epoll instance of media data processing when the epoll model is used to perform input and output operations on the media data processing channel.

The hi_mpi_sys_create_epoll, hi_mpi_sys_ctl_epoll, hi_mpi_sys_wait_epoll, and hi_mpi_sys_close_epoll APIs must be used together to operate the input/output data of the media data processing channel using the epoll programming model. The VPC function does not support this API.

Prototype

hi_s32 hi_mpi_sys_close_epoll(hi_s32 epoll_fd)

Parameters

Parameter	Input/Output	Description
epoll_fd	Input	Handle of the media data processing epoll instance to be destroyed. The handle is created by calling hi_mpi_sys_create_epoll.

Returns

0: success
Other values: failure. For details, see Common Return Codes.