<function>sd_watchdog_enabled()</function> will unset
the <varname>$WATCHDOG_USEC</varname> and
<varname>$WATCHDOG_PID</varname> environment variables
- before returning (regardless whether the function call
+ before returning (regardless of whether the function call
itself succeeded or not). Further calls to
<function>sd_watchdog_enabled()</function> will then
return with zero, but the variable is no longer
inherited by child processes.</para>
<para>If the <parameter>usec</parameter> parameter is
- non-NULL <function>sd_watchdog_enabled()</function>
+ non-NULL, <function>sd_watchdog_enabled()</function>
will return the timeout in µs for the watchdog
logic. The service manager will usually terminate a
service when it did not get a notification message
<literal>WATCHDOG=1</literal>.</para>
<para>To enable service supervision with the watchdog
- logic use <varname>WatchdogSec=</varname> in service
+ logic, use <varname>WatchdogSec=</varname> in service
files. See
<citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry>
for details.</para>
errno-style error code. If the service manager expects
watchdog keep-alive notification messages to be sent,
> 0 is returned, otherwise 0 is returned. Only if
- the return value is > 0 the
+ the return value is > 0, the
<parameter>usec</parameter> parameter is valid after
the call.</para>
</refsect1>
variable. The call will ignore these variables if
<varname>$WATCHDOG_PID</varname> does containe the PID
of the current process, under the assumption that in
- that case the variables were set for a different
+ that case, the variables were set for a different
process further up the process tree.</para>
- <para>For details about the algorithm check the
+ <para>For details about the algorithm, check the
liberally licensed reference implementation sources:
<ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/libsystemd-daemon/sd-daemon.c"/>
and <ulink
implemented in the reference implementation's
<filename>sd-daemon.c</filename> and
<filename>sd-daemon.h</filename> files. These
- interfaces are available as shared library, which can
+ interfaces are available as a shared library, which can
be compiled and linked to with the
<constant>libsystemd-daemon</constant> <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
file. Alternatively, applications consuming these APIs
may copy the implementation into their source
tree. For more details about the reference
- implementation see
+ implementation, see
<citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
<para>If the reference implementation is used as