mirror of
https://github.com/ElvishArtisan/rivendell.git
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06dd4c336b
* Replaced the 'Add Event', 'Delete Event' and 'Modify Event' commands in the RDCatch Monitor Protocol with multicast update events.
468 lines
12 KiB
XML
468 lines
12 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<article xmlns="http://docbook.org/ns/docbook" version="5.0">
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<info>
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<title>Rivendell RDCatch Monitor Protocol</title>
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<author>
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<personname>
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<firstname>Fred</firstname>
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<surname>Gleason</surname>
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<email>fredg@paravelsystems.com</email>
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</personname>
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</author>
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</info>
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<sect1 xml:id="overview">
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<title>Overview</title>
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<para>
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This defines the IP protocol used for communication between different
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modules of Rivendell and the
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<command>rdcatchd</command><manvolnum>8</manvolnum> daemon.
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</para>
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<para>
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Connection to ripcd is by means of a TCP SOCK_STREAM connection to TCP
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port <userinput>6006</userinput>. The format of a message is as follows:
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</para>
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<para>
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<replaceable>cmd-code</replaceable> [<replaceable>arg</replaceable>] [<replaceable>...</replaceable>]!
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</para>
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<variablelist>
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<varlistentry>
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<term>
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<replaceable>cmd-code</replaceable>
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</term>
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<listitem>
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<para>
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A two letter command code, describing the generic action to be
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performed
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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<replaceable>arg</replaceable>
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</term>
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<listitem>
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<para>
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Zero or more arguments, delimited by spaces or, if the last
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argument, by ! (see below)
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>
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!
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</term>
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<listitem>
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<para>
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The ASCII character 33, indicating the end of the command sequence.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect1>
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<sect1 xml:id="sect.unprivileged_commands">
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<title>Unprivileged Commands</title>
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<para>
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No authentication is required to execute these.
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</para>
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<sect2 xml:id="sect.unprivileged_commands.drop_connection">
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<title>Drop Connection</title>
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<para>
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End the session and drop the TCP connection.
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</para>
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<para>
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<userinput>DC!</userinput>
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</para>
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</sect2>
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<sect2 xml:id="sect.unprivileged_commands.send_password">
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<title>Send Password</title>
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<para>
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Send a password to the server for authentication.
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</para>
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<para>
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<userinput>PW <replaceable>passwd</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term>
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<replaceable>passwd</replaceable>
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</term>
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<listitem>
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A password to be supplied before granting the client access.
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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<command>rdcatchd</command><manvolnum>8</manvolnum> will respond
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with <computeroutput>PW +!</computeroutput> or
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<computeroutput>PW -!</computeroutput>, indicating the success or
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failure of the authentication.
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</para>
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</sect2>
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</sect1>
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<sect1 xml:id="sect.privileged_commands">
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<title>Privileged Commands</title>
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<para>
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A connection must be authenticated before these can be executed.
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</para>
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<sect2 xml:id="sect.privileged_commands.deck_event_processed">
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<title>Deck Event Processed</title>
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<para>
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Sent by RDCatchd whenever a deck event is processed.
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</para>
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<para>
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<userinput>DE <replaceable>deck-num</replaceable>
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<replaceable>event-num</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>deck-num</replaceable></term>
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<listitem>
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<para>
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The number of the deck originating the event. Record decks have
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numbers in the range <computeroutput>1</computeroutput> through
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<computeroutput>127</computeroutput>, while Play decks have
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numbers in the range <computeroutput>128</computeroutput> through
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<computeroutput>254</computeroutput>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>event-num</replaceable></term>
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<listitem>
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<para>
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The new event state of the specified deck.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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See <xref linkend="sect.privileged_commands.request_deck_status" /> for
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the list of possible deck event states.
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.reload_deck_list">
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<title>Reload Deck List</title>
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<para>
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Reload the record/play deck configuration.
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</para>
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<para>
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<userinput>RD!</userinput>
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</para>
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<para>
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<command>rdcatchd</command><manvolnum>8</manvolnum> will respond with
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<computeroutput>RS +!</computeroutput>.
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.reload_event_list">
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<title>Reload Event List</title>
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<para>
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Reload the list of scheduled events.
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</para>
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<para>
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<userinput>RS!</userinput>
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</para>
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<para>
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<command>rdcatchd</command><manvolnum>8</manvolnum> will respond with
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<computeroutput>RS +!</computeroutput>.
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.request_deck_status">
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<title>Request Deck Status</title>
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<para>
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Request the current deck status.
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</para>
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<para>
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<userinput>RE <replaceable>deck-num</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>deck-num</replaceable></term>
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<listitem>
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<para>
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The number of the deck for which to return status.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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If <replaceable>deck-num</replaceable> is greater than zero,
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<command>rdcatchd</command><manvolnum>8</manvolnum> will respond with
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<computeroutput>RE <replaceable>deck-num</replaceable>
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<replaceable>status</replaceable> <replaceable>id</replaceable>
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<replaceable>cutname</replaceable>!</computeroutput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>deck-num</replaceable></term>
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<listitem>
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<para>
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Channel number
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>status</replaceable></term>
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<listitem>
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<para>
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The current status of the deck. Possible values are:
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</para>
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<para>
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<table frame="all">
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<title>Deck Status Codes</title>
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<tgroup cols="2" align="left" colsep="1" rowsep="1">
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<colspec colname="Code" colwidth="1.0*" />
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<colspec colname="Meaning" colwidth="10.0*" />
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<thead>
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<row><entry>Code</entry><entry>Meaning</entry></row>
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</thead>
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<tbody>
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<row><entry>0</entry><entry>Offline</entry></row>
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<row><entry>1</entry><entry>Idle</entry></row>
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<row><entry>2</entry><entry>Ready</entry></row>
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<row><entry>3</entry><entry>Active (playing or recording)</entry></row>
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<row><entry>4</entry><entry>Waiting (for a GPI)</entry></row>
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</tbody>
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</tgroup>
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</table>
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>event-id</replaceable></term>
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<listitem>
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<para>
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ID number of current event (from RECORDINGS table)
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>cutname</replaceable></term>
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<listitem>
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<para>
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The cutname of the event (present only for
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<replaceable>status</replaceable>==<computeroutput>3</computeroutput>).
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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If <replaceable>channel</replaceable> is zero,
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<command>rdcatchd</command><manvolnum>8</manvolnum> will respond for
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every event whose status is non-idle.
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</para>
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<para>
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An <computeroutput>RE</computeroutput> packet will also be sent
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automatically to all active connections upon any change of deck status.
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.enable_metering">
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<title>Enable Metering</title>
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<para>
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Enable/Disable Audio Metering
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</para>
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<para>
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<userinput>RM <replaceable>state</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>state</replaceable></term>
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<listitem>
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<para>
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<computeroutput>1</computeroutput> = Enabled,
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<computeroutput>0</computeroutput> = Disabled.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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When metering is active, meter data packets will be periodically sent,
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as follows:
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</para>
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<para>
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<computeroutput>RM <replaceable>deck</replaceable>
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<replaceable>chan</replaceable>
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<replaceable>level</replaceable>!</computeroutput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>deck</replaceable></term>
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<listitem>
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<para>
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Deck number
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>chan</replaceable></term>
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<listitem>
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<para>
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Channel, <computeroutput>0</computeroutput> = Left,
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<computeroutput>1</computeroutput> = Right
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>level</replaceable></term>
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<listitem>
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<para>
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Left audio level, in 1/100 of dbFS
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.stop_deck">
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<title>Stop Deck</title>
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<para>
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Stop active event.
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</para>
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<para>
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<userinput>SR <replaceable>deck-num</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>deck-num</replaceable></term>
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<listitem>
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<para>
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The number of the deck to stop.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.purge_event">
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<title>Purge Event</title>
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<para>
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Report purging of one-shot event.
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</para>
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<para>
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<userinput>PE <replaceable>event-num</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>event-num</replaceable></term>
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<listitem>
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<para>
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The number of the purged event.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>
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Received upon completion of a one-shot event by
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<command>rdcatchd</command><manvolnum>8</manvolnum> to indicate that
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the event has been purged.
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.reload_time_offset">
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<title>Reload Time Offset</title>
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<para>
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Reload the time offset value from the database.
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</para>
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<para>
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<userinput>RO!</userinput>
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.reload_heartbeat_configuration">
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<title>Reload Heartbeat Configuration</title>
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<para>
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Reload the heartbeat configuration from the database.
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</para>
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<para>
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<userinput>RH!</userinput>
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.heartbeat_pulse">
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<title>Heartbeat Pulse</title>
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<para>
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Heartbeat Pulse, for connection keep-alive.
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</para>
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<para>
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<userinput>HB!</userinput>
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</para>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.input_monitor_state">
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<title>Input Monitor State</title>
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<para>
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Turn the input monitor on or off.
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</para>
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<para>
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<userinput>MN <replaceable>deck-num</replaceable>
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<replaceable>state</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>deck-num</replaceable></term>
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<listitem>
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<para>
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The number of the deck.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>state</replaceable></term>
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<listitem>
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<para>
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<computeroutput>1</computeroutput> = Enabled,
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<computeroutput>0</computeroutput> = Disabled.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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<sect2 xml:id="sect.privileged_commands.set_exit_code">
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<title>Set Exit Code</title>
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<para>
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Set the exit code of an event.
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</para>
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<para>
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<userinput>SC <replaceable>event-num</replaceable>
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<replaceable>code</replaceable>
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<replaceable>msg</replaceable>!</userinput>
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</para>
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<variablelist>
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<varlistentry>
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<term><replaceable>event-num</replaceable></term>
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<listitem>
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<para>
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The number of the event.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>code</replaceable></term>
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<listitem>
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<para>
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The numeric code to set.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable>msg</replaceable></term>
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<listitem>
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<para>
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The text message to set.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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</article>
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