xcb_shm_attach_fd - Create a shared memory segment

NAME  SYNOPSIS  Request function  REQUEST ARGUMENTS  DESCRIPTION  RETURN VALUE  ERRORS  SEE ALSO  AUTHOR 

NAME

xcb_shm_attach_fd − Create a shared memory segment

SYNOPSIS

#include <xcb/shm.h>

Request function

xcb_void_cookie_t xcb_shm_attach_fd(xcb_connection_t *conn, xcb_shm_seg_t shmseg, int32_t shm_fd, uint8_t read_only);

REQUEST ARGUMENTS

conn

The XCB connection to X11.

shmseg

A shared memory segment ID created with xcb_generate_id().

shm_fd

The file descriptor the server should mmap().

read_only

True if the segment shall be mapped read only by the X11 server, otherwise false.

DESCRIPTION

Create a shared memory segment. The file descriptor will be mapped at offset zero, and the size will be obtained using fstat(). A zero size will result in a Value error.

RETURN VALUE

Returns an xcb_void_cookie_t. Errors (if any) have to be handled in the event loop.

If you want to handle errors directly with xcb_request_check instead, use xcb_shm_attach_fd_checked. See xcb-requests(3) for details.

ERRORS

This request does never generate any errors.

SEE ALSO

xcb-requests(3)

AUTHOR

Generated from shm.xml. Contact [email protected] for corrections and improvements.


Updated 2024-01-29 - jenkler.se | uex.se