Move to kernel style SPDX license identifiers
[lttng-tools.git] / src / common / daemonize.h
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1#ifndef LTTNG_DAEMONIZE_H
2#define LTTNG_DAEMONIZE_H
3
4/*
5 * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
6 * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
8 * SPDX-License-Identifier: GPL-2.0-only
9 *
10 */
11
12#include <unistd.h>
13#include <common/macros.h>
14
15/*
16 * Daemonize this process by forking and making the parent wait for the child
17 * to signal it indicating readiness. Once received, the parent successfully
18 * quits.
19 *
20 * The child process undergoes the same action that daemon(3) does meaning
21 * setsid, chdir, and dup /dev/null into 0, 1 and 2.
22 *
23 * Return 0 on success else -1 on error.
24 */
25LTTNG_HIDDEN
26int lttng_daemonize(pid_t *child_ppid, int *completion_flag,
27 int close_fds);
28
29#endif /* LTTNG_DAEMONIZE_H */
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