Linux cli command ioctl_pipe

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command ioctl_pipe and provides detailed information about the command ioctl_pipe, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the ioctl_pipe.

  less than a minute  

NAME 🖥️ ioctl_pipe 🖥️

ioctl() operations for General notification mechanism

SYNOPSIS

#include <linux/watch_queue.h> /* Definition of IOC_WATCH_QUEUE_* */
#include <sys/ioctl.h>
int ioctl(int pipefd[1], IOC_WATCH_QUEUE_SET_SIZE, int size);
int ioctl(int pipefd[1], IOC_WATCH_QUEUE_SET_FILTER,
 struct watch_notification_filter *filter);

DESCRIPTION

The following ioctl(2) operations are provided to set up general notification queue parameters. The notification queue is built on the top of a pipe(2) opened with the O_NOTIFICATION_PIPE flag.

IOC_WATCH_QUEUE_SET_SIZE (since Linux 5.8)
Preallocates the pipe buffer memory so that it can fit size notification messages. Currently, size must be between 1 and 512.

IOC_WATCH_QUEUE_SET_FILTER (since Linux 5.8)
Watch queue filter can limit events that are received. Filters are passed in a struct watch_notification_filter and each filter is described by a struct watch_notification_type_filter structure.

struct watch_notification_filter {
        __u32   nr_filters;
        __u32   __reserved;
        struct watch_notification_type_filter filters[];
};
struct watch_notification_type_filter {
        __u32   type;
        __u32   info_filter;
        __u32   info_mask;
        __u32   subtype_filter[8];
};

SEE ALSO

pipe(2), ioctl(2)

░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░

  █║▌│║█║▌★ KALI ★ PARROT ★ DEBIAN 🔴 PENTESTING ★ HACKING ★ █║▌│║█║▌

              ██╗ ██╗ ██████╗  ██████╗ ██╗  ██╗███████╗██████╗
             ████████╗██╔══██╗██╔═══██╗╚██╗██╔╝██╔════╝██╔══██╗
             ╚██╔═██╔╝██║  ██║██║   ██║ ╚███╔╝ █████╗  ██║  ██║
             ████████╗██║  ██║██║   ██║ ██╔██╗ ██╔══╝  ██║  ██║
             ╚██╔═██╔╝██████╔╝╚██████╔╝██╔╝ ██╗███████╗██████╔╝
              ╚═╝ ╚═╝ ╚═════╝  ╚═════╝ ╚═╝  ╚═╝╚══════╝╚═════╝

               █║▌│║█║▌ WITH COMMANDLINE-KUNGFU POWER █║▌│║█║▌

░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░