~mdw / mLib / blame
| Commit | Line | Data |
|---|---|---|
| 0683223a MW |
1 | .\" -*-nroff-*- |
| 2 | .TH daemonize 3 "6 January 2007" "Straylight/Edgeware" "mLib utilities library" | |
| 3 | .SH NAME | |
| 4 | daemonize \- become a background process | |
| 5 | .\" @detachtty | |
| 6 | .\" @daemonize | |
| 7 | .SH SYNOPSIS | |
| 8 | .nf | |
| 9 | .B "#include <mLib/daemonize.h>" | |
| 10 | ||
| 11 | .B "void detachtty(void);" | |
| 12 | .B "int daemonize(void);" | |
| 13 | .fi | |
| 14 | .SH DESCRIPTION | |
| 15 | The | |
| 16 | .B daemonize | |
| 17 | function causes the current process to become a background process. It | |
| 18 | detaches from its controlling terminal and arranges never to acquire | |
| 19 | another controlling terminal. If it fails for some reason (probably | |
| 20 | because | |
| 21 | .BR fork (2) | |
| 22 | failed), | |
| 23 | .B daemonize | |
| 24 | returns \-1 and sets | |
| 25 | .BR errno ; | |
| 26 | on success, it returns 0. | |
| 27 | .PP | |
| 28 | The | |
| 29 | .B detachtty | |
| 30 | does half of the job of | |
| 31 | .BR daemonize : | |
| 32 | it detaches from its controlling terminal, and calls | |
| 33 | .BR setsid (2) | |
| 34 | and | |
| 35 | .BR fork (2) | |
| 36 | so that it can't acquire a new controlling terminal in future. Errors | |
| 37 | are ignored. | |
| 38 | .SH SEE ALSO | |
| 39 | .BR mLib (3). | |
| 40 | .SH AUTHOR | |
| 41 | Mark Wooding, <mdw@distorted.org.uk> |