From b1690fe70afa090545933560e9cbcbb8aa0387c4 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Fri, 13 Aug 2010 18:46:04 +0200 Subject: [PATCH] man: document that we now accept more than one main process for Type=oneshot services --- man/systemd.service.xml | 66 ++++++++++++++++++++++++----------------- 1 file changed, 39 insertions(+), 27 deletions(-) diff --git a/man/systemd.service.xml b/man/systemd.service.xml index 70c1d1e5..c3eebeab 100644 --- a/man/systemd.service.xml +++ b/man/systemd.service.xml @@ -129,25 +129,27 @@ configured with ExecStart= is the main process of the service. In this - mode, communication channels must be - installed before the daemon is started - up (e.g. sockets set up by systemd, - via socket activation), as systemd - will immediately proceed starting - follow-up units. + mode, if the process offers + functionality to other processes on + the system its communication channels + should be installed before the daemon + is started up (e.g. sockets set up by + systemd, via socket activation), as + systemd will immediately proceed + starting follow-up units. If set to it is expected that the process configured with ExecStart= - will start up and call - fork(). The - parent process is expected to finish - when start-up is complete and all - communication channels set up. The - child continues to run as the main - daemon process. This is the behaviour - of traditional UNIX daemons. If this + will call fork() + as part of its start-up. The parent process is + expected to exit when start-up is + complete and all communication + channels set up. The child continues + to run as the main daemon + process. This is the behaviour of + traditional UNIX daemons. If this setting is used, it is recommended to also use the PIDFile= option, so @@ -176,7 +178,7 @@ will proceed starting follow-up units after the D-Bus bus name has been acquired. Service units with this - option configured implicitly have + option configured implicitly gain dependencies on the dbus.target unit. @@ -193,11 +195,11 @@ notification message has been sent. If this option is used NotifyAccess= (see - below) must be set to open access to + below) should be set to open access to the notification socket provided by systemd. If NotifyAccess= is not - set, it will be implicitly set to + set, it will implicitly be set to . @@ -250,21 +252,31 @@ arguments for the process. It is mandatory to set this option for all services. This option may not be - specified more than once. Optionally, - if the absolute file name is prefixed - with @, the second - token will be passed as + specified more than once, except when + Type=oneshot is + used in which case more than one + ExecStart= line is + accepted which are then invoked one by + one, sequentially in the order they + appear in the unit file. + + Optionally, if the absolute file + name is prefixed with + @, the second token + will be passed as argv[0] to the executed process, followed by the further arguments specified. If the first token is prefixed with - - an error code of + - an exit code of the command normally considered a - failure is ignored and considered - success. If both - - and @ are used for - the same command the latter must - preceed the latter. Unless + failure (i.e. non-zero exit status or + abormal exit due to signal) is ignored + and considered success. If both + - and + @ are used for the + same command the former must preceed + the latter. Unless Type=forking is set, the process started via this command line will be considered the -- 2.39.5