'\" t
.TH "SD_EVENT_SOURCE_GET_EVENT" "3" "" "systemd 255" "sd_event_source_get_event"
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.SH "NAME"
sd_event_source_get_event \- Retrieve the event loop of an event source
.SH "SYNOPSIS"
.sp
.ft B
.nf
#include <systemd/sd\-event\&.h>
.fi
.ft
.HP \w'sd_event*\ sd_event_source_get_event('u
.BI "sd_event* sd_event_source_get_event(sd_event_source\ *" "source" ");"
.SH "DESCRIPTION"
.PP
\fBsd_event_source_get_event()\fR
may be used to retrieve the event loop object the event source object specified as
\fIsource\fR
is associated with\&. The event loop object is specified when creating an event source object with calls such as
\fBsd_event_add_io\fR(3)
or
\fBsd_event_add_time\fR(3)\&.
.SH "RETURN VALUE"
.PP
On success,
\fBsd_event_source_get_event()\fR
returns the associated event loop object\&. On failure, it returns
\fBNULL\fR\&.
.SH "NOTES"
.PP
Functions described here are available as a shared library, which can be compiled against and linked to with the
\fBlibsystemd\fR\ \&\fBpkg-config\fR(1)
file\&.
.PP
The code described here uses
\fBgetenv\fR(3), which is declared to be not multi\-thread\-safe\&. This means that the code calling the functions described here must not call
\fBsetenv\fR(3)
from a parallel thread\&. It is recommended to only do calls to
\fBsetenv()\fR
from an early phase of the program when no other threads have been started\&.
.SH "HISTORY"
.PP
\fBsd_event_source_get_event()\fR
was added in version 229\&.
.SH "SEE ALSO"
.PP
\fBsd-event\fR(3),
\fBsd_event_add_io\fR(3),
\fBsd_event_add_time\fR(3),
\fBsd_event_add_signal\fR(3),
\fBsd_event_add_child\fR(3),
\fBsd_event_add_inotify\fR(3),
\fBsd_event_add_defer\fR(3),
\fBsd_event_source_set_userdata\fR(3)