Commit | Line | Data |
---|---|---|
c4ccbbf9 MW |
1 | .\" -*-nroff-*- |
2 | .\" | |
3 | .\" Manual for daemonization | |
4 | .\" | |
5 | .\" (c) 2007, 2009, 2024 Straylight/Edgeware | |
6 | .\" | |
7 | . | |
8 | .\"----- Licensing notice --------------------------------------------------- | |
9 | .\" | |
10 | .\" This file is part of the mLib utilities library. | |
11 | .\" | |
12 | .\" mLib is free software: you can redistribute it and/or modify it under | |
13 | .\" the terms of the GNU Library General Public License as published by | |
14 | .\" the Free Software Foundation; either version 2 of the License, or (at | |
15 | .\" your option) any later version. | |
16 | .\" | |
17 | .\" mLib is distributed in the hope that it will be useful, but WITHOUT | |
18 | .\" ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
19 | .\" FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public | |
20 | .\" License for more details. | |
21 | .\" | |
22 | .\" You should have received a copy of the GNU Library General Public | |
23 | .\" License along with mLib. If not, write to the Free Software | |
24 | .\" Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
25 | .\" USA. | |
26 | . | |
27 | .\"-------------------------------------------------------------------------- | |
28 | .so ../defs.man \" @@@PRE@@@ | |
29 | . | |
30 | .\"-------------------------------------------------------------------------- | |
31 | .TH daemonize 3mLib "6 January 2007" "Straylight/Edgeware" "mLib utilities library" | |
32 | .\" @detachtty | |
33 | .\" @daemonize | |
34 | . | |
35 | .\"-------------------------------------------------------------------------- | |
36 | .SH NAME | |
37 | daemonize \- become a background process | |
38 | . | |
39 | .\"-------------------------------------------------------------------------- | |
40 | .SH SYNOPSIS | |
41 | . | |
42 | .nf | |
43 | .B "#include <mLib/daemonize.h>" | |
44 | .PP | |
45 | .B "void detachtty(void);" | |
46 | .B "int daemonize(void);" | |
47 | .fi | |
48 | . | |
49 | .\"-------------------------------------------------------------------------- | |
50 | .SH DESCRIPTION | |
51 | . | |
52 | The | |
53 | .B daemonize | |
54 | function causes the current process to become a background process. It | |
55 | detaches from its controlling terminal and arranges never to acquire | |
56 | another controlling terminal. If it fails for some reason (probably | |
57 | because | |
58 | .BR fork (2) | |
59 | failed), | |
60 | .B daemonize | |
61 | returns \-1 and sets | |
62 | .BR errno ; | |
63 | on success, it returns 0. | |
64 | .PP | |
65 | The | |
66 | .B detachtty | |
67 | does half of the job of | |
68 | .BR daemonize : | |
69 | it detaches from its controlling terminal, and calls | |
70 | .BR setsid (2) | |
71 | and | |
72 | .BR fork (2) | |
73 | so that it can't acquire a new controlling terminal in future. Errors | |
74 | are ignored. | |
75 | . | |
76 | .\"-------------------------------------------------------------------------- | |
77 | .SH SEE ALSO | |
78 | . | |
79 | .BR mLib (3). | |
80 | . | |
81 | .\"-------------------------------------------------------------------------- | |
82 | .SH AUTHOR | |
83 | . | |
84 | Mark Wooding, <mdw@distorted.org.uk> | |
85 | . | |
86 | .\"----- That's all, folks -------------------------------------------------- |