inotify_add_watch(2)          System Calls Manual         inotify_add_watch(2)

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       inotify_add_watch - <?><?><?><?><?><?><?><?><?>
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       <?><?><?><?><?><?><?><?><?><?> inotify

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       <?><?><?><?><?> C (libc, -lc)

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       #include <sys/inotify.h>

       int inotify_add_watch(int fd, const char *path, uint32_t mask);

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       inotify_add_watch()  adds a new watch, or modifies an existing watch,
       for the file whose location is specified in path; the caller must have
       read permission for this file.  The fd argument is a file descriptor
       referring to the inotify instance whose watch list is to be modified.
       The events to be monitored for path are specified in the mask bit-mask
       argument.  See inotify(7)  for a description of the bits that can be
       set in mask.

       A successful call to inotify_add_watch()  returns a unique watch
       descriptor for this inotify instance, for the filesystem object (inode)
       that corresponds to path.  If the filesystem object was not previously
       being watched by this inotify instance, then the watch descriptor is
       newly allocated.  If the filesystem object was already being watched
       (perhaps via a different link to the same object), then the descriptor
       for the existing watch is returned.

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       <?><?><?><?><?><?><?><?><?> inotify_event (<?><?>. inotify(7)),
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       inotify_add_watch() <?><?><?><?><?><?><?><?><?><?>
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       EACCES <?><?><?> <?><?><?><?> <?><?> <?><?><?><?><?><?>
              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?>.

       EBADF  <?><?><?><?><?><?> <?><?><?><?><?><?><?><?>
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       EEXIST mask contains IN_MASK_CREATE and path refers to a file already
              being watched by the same fd.

       EFAULT path points outside of the process's accessible address space.

       EINVAL <?><?><?><?><?><?><?><?><?> <?><?><?><?><?>
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              <?><?><?><?><?><?><?><?><?><?> <?><?><?><?><?><?><?>; mask
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              <?><?><?><?><?><?><?><?><?><?><?><?> inotify.

       ENAMETOOLONG
              path <?><?><?><?><?><?><?> <?><?><?><?><?><?>.

       ENOENT A directory component in path does not exist or is a dangling
              symbolic link.

       ENOMEM <?><?><?><?><?><?><?><?><?><?><?><?><?>
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       ENOSPC <?><?><?><?><?><?><?><?><?><?>
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              inotify <?><?><?><?><?><?><?><?><?>
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       ENOTDIR
              mask contains IN_ONLYDIR and path is not a directory.

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       Linux.

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       Linux 2.6.13.

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       <?><?><?><?><?><?><?><?> inotify(7).

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       inotify_init(2), inotify_rm_watch(2), inotify(7)

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       <?><?><?><?><?><?><?><?><?><?>(<?>) Azamat Hackimov
       <azamat.hackimov@gmail.com>, Dmitriy S. Seregin <dseregin@59.ru>, Yuri
       Kozlov <yuray@komyakino.ru> <?> <?><?><?><?> <?><?><?><?><?><?>
       <pavia00@gmail.com>

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       <?><?><?><?><?><?><?><?> GNU (GNU General Public License - GPL,
       <https://www.gnu.org/licenses/gpl-3.0.html> <?><?><?><?><?><?> 3
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       <debian-l10n-russian@lists.debian.org>.

Linux man-pages 6.18   8 <?><?><?><?><?><?><?> 2026 <?>.  inotify_add_watch(2)