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/*
* Copyright (C) 2022 Red Hat Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _FILE_WATCH_H
#define _FILE_WATCH_H
#include <stdbool.h>
#include <talloc.h>
#include <tevent.h>
typedef void (*fw_callback)(const char *filename, void *arg);
struct file_watch_ctx;
/*
* This function configures the watching of a file. When the file is created
* or modified, the provided callback function is invoked.
*
* If the file exists at the moment this function is called, the callback
* will be invoked once. A first processing of the file can be done in that
* case. If the file does not exist at that moment, the callback will be
* invoked when the file is created.
*
* inotify will be used to watch the file unless 'use_notify' is set to 'false'
* in sssd.conf or inotify fails (not installed). In those two cases, the
* file state will be polled every 10 seconds when the file doesn't exist
* to detect its creation, and every 5 seconds when the file exists to detect
* changes.
*/
struct file_watch_ctx *fw_watch_file(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const char *filename,
bool use_inotify,
fw_callback cb,
void *cb_arg);
#endif /* _FILE_WATCH_H */
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