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Support setting the keepalive idle time on MacOS X.

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MacOS X uses TCP_KEEPALIVE rather than TCP_KEEPIDLE for this purpose.

Thanks to Fujii Masao for the review.
This commit is contained in:
Robert Haas
2010-07-06 21:14:25 +00:00
parent 3f12653b73
commit 5acd417c8f
4 changed files with 49 additions and 15 deletions
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11
doc/src/sgml/config.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.291 2010/07/03 22:52:25 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.292 2010/07/06 21:14:25 rhaas Exp $ -->
<chapter Id="runtime-config">
<title>Server Configuration</title>
@ -523,11 +523,12 @@ SET ENABLE_SEQSCAN TO OFF;
</indexterm>
<listitem>
<para>
On systems that support the <symbol>TCP_KEEPIDLE</symbol> socket option, specifies the
On systems that support the <symbol>TCP_KEEPIDLE</symbol> or
<symbol>TCP_KEEPALIVE</> socket option, specifies the
number of seconds between sending keepalives on an otherwise idle
connection. A value of zero uses the system default. If <symbol>TCP_KEEPIDLE</symbol> is
not supported, this parameter must be zero. This parameter is ignored for
connections made via a Unix-domain socket.
connection. A value of zero uses the system default. If neither of
these socket options is supported, this parameter must be zero. This
parameter is ignored for connections made via a Unix-domain socket.
</para>
</listitem>
</varlistentry>

10
doc/src/sgml/libpq.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.311 2010/06/29 22:29:14 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/libpq.sgml,v 1.312 2010/07/06 21:14:25 rhaas Exp $ -->
<chapter id="libpq">
<title><application>libpq</application> - C Library</title>
@ -298,10 +298,10 @@
<para>
Controls the number of seconds of inactivity after which TCP should
send a keepalive message to the server. A value of zero uses the
system default. This parameter is ignored if the
<symbol>TCP_KEEPIDLE</> socket option is not supported, for
connections made via a Unix-domain socket, or if keepalives are
disabled.
system default. This parameter is ignored if the neither the
<symbol>TCP_KEEPIDLE</> nor the <symbol>TCP_KEEPALIVE</> socket
options are supported, for connections made via a Unix-domain
socket, or if keepalives are disabled.
</para>
</listitem>
</varlistentry>