175 lines
4.0 KiB
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175 lines
4.0 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of INOTIFY_INIT</TITLE>
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</HEAD><BODY>
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<H1>INOTIFY_INIT</H1>
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Section: Linux Programmer's Manual (2)<BR>Updated: 2019-03-06<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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inotify_init, inotify_init1 - initialize an inotify instance
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<PRE>
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<B>#include <<A HREF="file:///usr/include/sys/inotify.h">sys/inotify.h</A>></B>
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<B>int inotify_init(void);</B>
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<B>int inotify_init1(int </B><I>flags</I><B>);</B>
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</PRE>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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For an overview of the inotify API, see
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<B><A HREF="/cgi-bin/man/man2html?7+inotify">inotify</A></B>(7).
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<P>
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<B>inotify_init</B>()
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initializes a new inotify instance and returns a file descriptor associated
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with a new inotify event queue.
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<P>
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If
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<I>flags</I>
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is 0, then
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<B>inotify_init1</B>()
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is the same as
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<B>inotify_init</B>().
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The following values can be bitwise ORed in
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<I>flags</I>
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to obtain different behavior:
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<DL COMPACT>
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<DT id="1"><B>IN_NONBLOCK</B>
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<DD>
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Set the
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<B>O_NONBLOCK</B>
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file status flag on the open file description (see
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<B><A HREF="/cgi-bin/man/man2html?2+open">open</A></B>(2))
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referred to by the new file descriptor.
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Using this flag saves extra calls to
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<B><A HREF="/cgi-bin/man/man2html?2+fcntl">fcntl</A></B>(2)
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to achieve the same result.
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<DT id="2"><B>IN_CLOEXEC</B>
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<DD>
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Set the close-on-exec
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(<B>FD_CLOEXEC</B>)
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flag on the new file descriptor.
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See the description of the
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<B>O_CLOEXEC</B>
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flag in
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<B><A HREF="/cgi-bin/man/man2html?2+open">open</A></B>(2)
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for reasons why this may be useful.
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</DL>
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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On success, these system calls return a new file descriptor.
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On error, -1 is returned, and
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<I>errno</I>
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is set to indicate the error.
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<A NAME="lbAF"> </A>
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<H2>ERRORS</H2>
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<DL COMPACT>
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<DT id="3"><B>EINVAL</B>
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<DD>
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(<B>inotify_init1</B>())
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An invalid value was specified in
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<I>flags</I>.
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<DT id="4"><B>EMFILE</B>
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<DD>
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The user limit on the total number of inotify instances has been reached.
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<DT id="5"><B>EMFILE</B>
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<DD>
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The per-process limit on the number of open file descriptors has been reached.
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<DT id="6"><B>ENFILE</B>
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<DD>
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The system-wide limit on the total number of open files has been reached.
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<DT id="7"><B>ENOMEM</B>
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<DD>
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Insufficient kernel memory is available.
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</DL>
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<A NAME="lbAG"> </A>
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<H2>VERSIONS</H2>
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<B>inotify_init</B>()
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first appeared in Linux 2.6.13;
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library support was added to glibc in version 2.4.
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<B>inotify_init1</B>()
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was added in Linux 2.6.27;
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library support was added to glibc in version 2.9.
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<A NAME="lbAH"> </A>
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<H2>CONFORMING TO</H2>
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These system calls are Linux-specific.
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?2+inotify_add_watch">inotify_add_watch</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?2+inotify_rm_watch">inotify_rm_watch</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?7+inotify">inotify</A></B>(7)
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<A NAME="lbAJ"> </A>
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<H2>COLOPHON</H2>
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This page is part of release 5.05 of the Linux
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<I>man-pages</I>
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="8"><A HREF="#lbAB">NAME</A><DD>
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<DT id="9"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="10"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="11"><A HREF="#lbAE">RETURN VALUE</A><DD>
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<DT id="12"><A HREF="#lbAF">ERRORS</A><DD>
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<DT id="13"><A HREF="#lbAG">VERSIONS</A><DD>
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<DT id="14"><A HREF="#lbAH">CONFORMING TO</A><DD>
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<DT id="15"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="16"><A HREF="#lbAJ">COLOPHON</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:32 GMT, March 31, 2021
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</BODY>
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</HTML>
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