INOTIFY_INIT(2) Linux Programmer's Manual INOTIFY_INIT(2)
inotify_init, inotify_init1 - initialize an inotify instance
int inotify_init1(int flags);
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 be-
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 re-
Set the close-on-exec (FD_CLOEXEC) flag on the new file descrip-
tor. See the description of the O_CLOEXEC flag in open(2) for
reasons why this may be useful.
On success, these system calls return a new file descriptor. On error,
-1 is returned, and errno is set to indicate the error.
EINVAL (inotify_init1()) An invalid value was specified in flags.
EMFILE The user limit on the total number of inotify instances has been
EMFILE The per-process limit on the number of open file descriptors has
ENFILE The system-wide limit on the total number of open files has been
ENOMEM Insufficient kernel memory is available.
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.
These system calls are Linux-specific.
inotify_add_watch(2), inotify_rm_watch(2), inotify(7)
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Linux 2020-04-11 INOTIFY_INIT(2)