chiark / gitweb /
man: don't advertise sd-daemon as embeddable anymore
[elogind.git] / man / sd_watchdog_enabled.xml
index e42ae430ece19f43cb403e8c7d9c2a8cd8a5baae..0e4df3750668585b9dd6afa5fa2ee1d8fe51a1d7 100644 (file)
                 <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
@@ -94,7 +94,7 @@
                 <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,
                 &gt; 0 is returned, otherwise 0 is returned. Only if
-                the return value is &gt; 0 the
+                the return value is &gt; 0, the
                 <parameter>usec</parameter> parameter is valid after
                 the call.</para>
         </refsect1>
         <refsect1>
                 <title>Notes</title>
 
-                <para>This function is provided by the reference
-                implementation of APIs for new-style daemons and
-                distributed with the systemd package. The algorithm
-                it implements is simple, and can easily be
-                reimplemented in daemons if it is important to support
-                this interface without using the reference
-                implementation.</para>
+                <para>These APIs are implemented as a shared library,
+                which can be compiled and linked to with the
+                <constant>libsystemd</constant> <citerefentry><refentrytitle>pkg-config</refentrytitle><manvolnum>1</manvolnum></citerefentry>
+                file.</para>
 
                 <para>Internally, this functions parses the
                 <varname>$WATCHDOG_PID</varname> and
                 variable. The call will ignore these variables if
                 <varname>$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
-                liberally licensed reference implementation sources:
-                <ulink url="http://cgit.freedesktop.org/systemd/systemd/plain/src/libsystemd-daemon/sd-daemon.c"/>
-                and <ulink
-                url="http://cgit.freedesktop.org/systemd/systemd/plain/src/systemd/sd-daemon.h"/></para>
-
-                <para><function>sd_watchdog_enabled()</function> is
-                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
-                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
-                <citerefentry><refentrytitle>sd-daemon</refentrytitle><manvolnum>3</manvolnum></citerefentry>.</para>
-
-                <para>If the reference implementation is used as
-                drop-in files and -DDISABLE_SYSTEMD is set during
-                compilation, these functions will always return 0 and
-                otherwise become a NOP.</para>
         </refsect1>
 
         <refsect1>