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+$Header: /cvsroot/pgsql/doc/src/sgml/libpq.sgml,v 1.54 2000/12/28 00:16:11 tgl Exp $
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<chapter id="libpq-chapter">
<itemizedlist>
<listitem>
<para>
- <function>PQsetnonblocking</function> Sets the state of the connection
- to non-blocking.
+ <function>PQsetnonblocking</function> Sets the nonblocking status of the
+ connection.
<synopsis>
-int PQsetnonblocking(PGconn *conn)
+int PQsetnonblocking(PGconn *conn, int arg)
</synopsis>
- this function will ensure that calls to
+ Sets the state of the connection to nonblocking if arg is TRUE,
+ blocking if arg is FALSE. Returns 0 if OK, -1 if error.
+ </para>
+ <para>
+ In the nonblocking state, calls to
<function>PQputline</function>, <function>PQputnbytes</function>,
<function>PQsendQuery</function> and <function>PQendcopy</function>
will not block but instead return an error if they need to be called