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 training product	x
Atlas inference product	√
Atlas 200I/500 A2 inference product	√

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.

Prototype

C Prototype

        
             hi_s32 hi_mpi_sys_close_epoll(hi_s32 epoll_fd)

Python Function

        
             ret = acl.himpi.sys_close_epoll(epoll_fd)

Parameters

Parameter	Description
epoll_fd	Int, pointer address of the file descriptor of the epoll instance to be destroyed. The file descriptor is created by calling acl.himpi.sys_create_epoll.

Return Value

Return Value	Description
ret	Int, error code. 0 indicates success. Other values indicate failures. For details, see Common Return Codes.

Restrictions

acl.himpi.sys_create_epoll, acl.himpi.sys_ctl_epoll, acl.himpi.sys_wait_epoll, and acl.himpi.sys_close_epoll must be used together to operate the input and output data of the media data processing channel by using the epoll programming model.
The VPC function does not support this API.

Reference

For details about the API call sequence and examples, see JPEGE and VENC.

For details about the API call sequence and sample code, see JPEGE.

Parent topic: Common APIs