03-03-2016
If you are on Linux, how about inotify / inotifywait ?
It is quite simple and has some nice examples in the manual.
With minimal change a manual example can serve your point.
Can also be implemented in various programming languages using the API.
So perhaps instead of restarting the app, it can be changed or one should say fixed
Hope that helps
Regards
Peasant.
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LEARN ABOUT OPENDARWIN
inotify_rm_watch
INOTIFY_RM_WATCH(2) Linux Programmer's Manual INOTIFY_RM_WATCH(2)
NAME
inotify_rm_watch - remove an existing watch from an inotify instance
SYNOPSIS
#include <sys/inotify.h>
int inotify_rm_watch(int fd, int wd);
DESCRIPTION
inotify_rm_watch() removes the watch associated with the watch descriptor wd from the inotify instance associated with the file descriptor
fd.
Removing a watch causes an IN_IGNORED event to be generated for this watch descriptor. (See inotify(7).)
RETURN VALUE
On success, inotify_rm_watch() returns zero. On error, -1 is returned and errno is set to indicate the cause of the error.
ERRORS
EBADF fd is not a valid file descriptor.
EINVAL The watch descriptor wd is not valid; or fd is not an inotify file descriptor.
VERSIONS
Inotify was merged into the 2.6.13 Linux kernel.
CONFORMING TO
This system call is Linux-specific.
SEE ALSO
inotify_add_watch(2), inotify_init(2), inotify(7)
COLOPHON
This page is part of release 4.15 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 2017-09-15 INOTIFY_RM_WATCH(2)