bdb/tcl/docs/rep.html


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   <title>Replication commands</title>
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<h2>
<a NAME="Replication Commands"></a>Replication Commands</h2>
Replication commands are invoked from the environment handle, after
it has been opened with the appropriate flags defined
<a href="./env.html">here</a>.<br>
<hr WIDTH="100%">
<p><b>> &lt;env> rep_process_message <i>machid</i> <i>control</i>
<i>rec</i></b>
<p>This command processes a single incoming replication message.&nbsp; It
is a direct translation of the <a
href="../../docs/api_c/rep_process_message.html">rep_process_message</a>
function.&nbsp;
It returns either a 0 (for success), a DB error message or it throws a
Tcl error with a system message.&nbsp; The arguments are:
<ul>
<li>
<b>machid </b>is the machine ID of the machine that <i>sent</i> this
message.</li>

<li>
<b>control</b> is a binary string containing the exact contents of the
<b><i>control</i></b> argument to the <b><i>sendproc</i></b> function
that was passed this message on another site.</li>

<li>
<b>rec</b> is a binary string containing the exact contents of the
<b><i>rec</i></b> argument to the <b><i>sendproc</i></b> function
that was passed this message on another site.</li>
</ul>

<hr WIDTH="100%">
<br><b>> &lt;env> rep_elect <i>nsites</i> <i>pri</i> <i>wait</i>
<i>sleep</i></b>
<p>This command causes a replication election.&nbsp; It is a direct translation
of the <a href="../../docs/api_c/rep_elect.html">rep_elect</a> function.&nbsp;
Its arguments, all integers, correspond exactly to that C function's
parameters.
It will return a list containing two integers, which contain,
respectively, the integer values returned in the C function's
<i><b>midp</b></i> and <i><b>selfp</b></i> parameters.
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