sys_close_epoll

Applicable Products

Product	Supported (√/x)
Ascend 950PR / Ascend 950DT	√
Atlas A3 training products / Atlas A3 inference products	√
Atlas A2 training products / Atlas A2 inference products	√
Atlas training products	x
Atlas inference products	√
Atlas 200I/500 A2 inference products	√

Function Usage

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)

Parameter Description

Parameter	Description
epoll_fd	Int, pointer address of the processing epoll instance handle of the media data to be destroyed. The handle is created by calling acl.himpi.sys_create_epoll.

Return Value Description

Return Value	Description
ret	Int, error code. 0: success. Other values: 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 example, see JPEGE and VENC.

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

Parent topic: Common APIs