inotify_init(2) — Linux manual page


INOTIFY_INIT(2)         Linux Programmer's Manual        INOTIFY_INIT(2)

NAME         top

       inotify_init, inotify_init1 - initialize an inotify instance

SYNOPSIS         top

       #include <sys/inotify.h>

       int inotify_init(void);
       int inotify_init1(int flags);

DESCRIPTION         top

       For an overview of the inotify API, see inotify(7).

       inotify_init() initializes a new inotify instance and returns a
       file descriptor associated with a new inotify event queue.

       If flags is 0, then inotify_init1() is the same as
       inotify_init().  The following values can be bitwise ORed in
       flags to obtain different behavior:

              Set the O_NONBLOCK file status flag on the open file
              description (see open(2)) referred to by the new file
              descriptor.  Using this flag saves extra calls to fcntl(2)
              to achieve the same result.

              Set the close-on-exec (FD_CLOEXEC) flag on the new file
              descriptor.  See the description of the O_CLOEXEC flag in
              open(2) for reasons why this may be useful.

RETURN VALUE         top

       On success, these system calls return a new file descriptor.  On
       error, -1 is returned, and errno is set to indicate the error.

ERRORS         top

       EINVAL (inotify_init1()) An invalid value was specified in flags.

       EMFILE The user limit on the total number of inotify instances
              has been reached.

       EMFILE The per-process limit on the number of open file
              descriptors has been reached.

       ENFILE The system-wide limit on the total number of open files
              has been reached.

       ENOMEM Insufficient kernel memory is available.

VERSIONS         top

       inotify_init() first appeared in Linux 2.6.13; library support
       was added to glibc in version 2.4.  inotify_init1() was added in
       Linux 2.6.27; library support was added to glibc in version 2.9.

CONFORMING TO         top

       These system calls are Linux-specific.

SEE ALSO         top

       inotify_add_watch(2), inotify_rm_watch(2), inotify(7)

COLOPHON         top

       This page is part of release 5.13 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at

Linux                          2020-04-11                INOTIFY_INIT(2)

Pages that refer to this page: inotify_add_watch(2)inotify_rm_watch(2)syscalls(2)proc(5)inotify(7)