xcb_shm_attach_fd - Man Page

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 xcb@lists.freedesktop.org for corrections and improvements.

Referenced By

The man page xcb_shm_attach_fd_checked(3) is an alias of xcb_shm_attach_fd(3).

libxcb 1.16.1 X Version 11 XCB Requests