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1. www.man7.org › man2 › inotify_add_watchinotify_add_watch (2) - Linux manual page - man7.org

   www.man7.org › man2 › inotify_add_watch

   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.

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2. www.ibm.com › docs › eninotify_add_watch - IBM

   www.ibm.com › docs › en

   Function inotify_add_watch adds a watch to an initialized inotify instance. On return, retval contains the watch descriptor.

3. www.php.net › manual › enPHP: inotify_add_watch - Manual

   www.php.net › manual › en

   inotify_add_watch () adds a new watch or modify an existing watch for the file or directory specified in pathname. Using inotify_add_watch () on a watched object replaces the existing watch.

4. refspecs.linuxbase.org › LSB_5 › LSB-Coreinotify_add_watch

   refspecs.linuxbase.org › LSB_5 › LSB-Core

   Description inotify_add_watch () shall add a watch to, or modify an existing watch on, the watch list of the inotify instance specified by the file descriptor fd, for the file specified by path, to monitor the events specified by the bitmask mask. The caller must have read access to the file.

5. man.archlinux.org › inotify_add_watchinotify_add_watch (2) — Arch manual pages

   man.archlinux.org › inotify_add_watch

   DESCRIPTION inotify_add_watch () adds a new watch, or modifies an existing watch, for the file whose location is specified in pathname; 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 pathname are specified in the mask bit-mask argument. See inotify (7 ...

6. www.freepascal.org › linux › inotify_add_watchinotify_add_watch - Free Pascal

   www.freepascal.org › linux › inotify_add_watch

   inotify_add_watch can be used to add a watch to an initialized inotify file descriptor (fd). The file or directory to watch can be specified in the name parameter, and the events that must be reported can be specified in mask.

7. People also ask

   What does inotify_add_watch do?

   • 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.

   inotify_add_watch (2) - Linux manual page - man7.org

   www.man7.org/linux/man-pages/man2/inotify_add_watch.2.html

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   Why does inotify_add_watch() Return -1?

   • Monitoring subdirectories of path shall require adding watches to them. On failure, inotify_add_watch () shall return -1 and set errno to an appropriate value. The caller does not have read access to path. The file descriptor fd is invalid. path is outside of the address space accessible by the process.

   inotify_add_watch

   refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-inotify-add-watch.html

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   How to monitor events for path in inotify?

   • 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.

   inotify_add_watch (2) - Linux manual page - man7.org

   www.man7.org/linux/man-pages/man2/inotify_add_watch.2.html

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   How do inotify events work?

   • For a given file descriptor, the inotify events are returned in an ordered queue. Events on a file descriptor will always be returned in the correct order of occurrence. If two or more inotify events for a given file descriptor have identical values for all fields, then only one inotify_event will be returned to represent all of them.

   inotify_add_watch

   refspecs.linuxbase.org/LSB_5.0.0/LSB-Core-generic/LSB-Core-generic/baselib-inotify-add-watch.html

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8. www.qnx.com › topic › iinotify_add_watch () - QNX

   www.qnx.com › topic › i

   Mar 25, 2026 · The inotify_add_watch () function starts watching for filesystem events associated with the given path. For you to use this function, the filesystem event manager (fsevmgr) manager needs to be running.