inotify_init(2)



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

NAME
       inotify_init, inotify_init1 - initialize an inotify instance

SYNOPSIS
       #include <sys/inotify.h>

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

DESCRIPTION
       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-
       havior:

       IN_NONBLOCK
              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-
              sult.

       IN_CLOEXEC
              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.

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

ERRORS
       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
       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
       These system calls are Linux-specific.

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

COLOPHON
       This  page  is  part of release 5.07 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
       https://www.kernel.org/doc/man-pages/.

Linux                             2020-04-11                   INOTIFY_INIT(2)

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