man: document three new cgtop options

[elogind.git] / man / systemd.journal-fields.xml

diff --git a/man/systemd.journal-fields.xml b/man/systemd.journal-fields.xml
index 518c0fc05939fe50242ed5a5042714fba0e51e93..59bb8ad70a26f80dc6c7e1b2fc84b615af693ec4 100644 (file)
--- a/man/systemd.journal-fields.xml
+++ b/man/systemd.journal-fields.xml
@@ -53,11 +53,12 @@
                 <para>Entries in the journal resemble an environment
                 block in their syntax, however with fields that can
                 include binary data. Primarily, fields are formatted
-                ASCII strings, and binary formatting is used only
-                where formatting as ASCII makes little sense. New
-                fields may be freely defined by applications, but a
-                few fields have special meaning. All fields with
-                special meaning are optional.</para>
+                UTF-8 text strings, and binary formatting is used only
+                where formatting as UTF-8 text strings makes little
+                sense. New fields may freely be defined by
+                applications, but a few fields have special
+                meaning. All fields with special meanings are
+                optional.</para>
         </refsect1>
 
         <refsect1>
@@ -131,6 +132,19 @@
                                 </listitem>
                         </varlistentry>
 
+                        <varlistentry>
+                                <term>ERRNO=</term>
+                                <listitem>
+                                        <para>The low-level Unix error
+                                        number causing this entry, if
+                                        any. Contains the numeric
+                                        value of
+                                        <citerefentry><refentrytitle>errno</refentrytitle><manvolnum>3</manvolnum></citerefentry>
+                                        formatted as decimal
+                                        string.</para>
+                                </listitem>
+                        </varlistentry>
+
                         <varlistentry>
                                 <term>SYSLOG_FACILITY=</term>
                                 <term>SYSLOG_IDENTIFIER=</term>
@@ -298,7 +312,12 @@
                 addresses of journal entries are serialized into
                 fields prefixed with double underscores. Note that
                 these aren't proper fields when stored in the journal,
-                but addressing meta data of entries.</para>
+                but addressing meta data of entries. They cannot be
+                written as part of structured log entries via calls
+                such as
+                <citerefentry><refentrytitle>sd_journal_send</refentrytitle><manvolnum>3</manvolnum></citerefentry>. They
+                may also not be used as matches for
+                <citerefentry><refentrytitle>sd_journal_add_match</refentrytitle><manvolnum>3</manvolnum></citerefentry></para>
 
                 <variablelist>
                         <varlistentry>
@@ -355,7 +374,8 @@
                   <para>
                           <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
                           <citerefentry><refentrytitle>journalctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
-                          <citerefentry><refentrytitle>journald.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>
+                          <citerefentry><refentrytitle>journald.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>,
+                          <citerefentry><refentrytitle>sd-journal</refentrytitle><manvolnum>3</manvolnum></citerefentry>
                   </para>
         </refsect1>