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<?php
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/* 
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V4.80 8 Mar 2006  (c) 2000-2006 John Lim (jlim@natsoft.com.my). All rights reserved.
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  Released under both BSD license and Lesser GPL library license. 
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  Whenever there is any discrepancy between the two licenses, 
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  the BSD license will take precedence. See License.txt. 
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  Set tabs to 4 for best viewing.
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  Latest version is available at http://adodb.sourceforge.net
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  Library for basic performance monitoring and tuning 
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*/
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// security - hide paths
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if (!defined('ADODB_DIR')) die();
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//
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// Thx to  Fernando Ortiz, mailto:fortiz#lacorona.com.mx
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// With info taken from http://www.oninit.com/oninit/sysmaster/index.html
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//
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class perf_informix extends adodb_perf{
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	// Maximum size on varchar upto 9.30 255 chars
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	// better truncate varchar to 255 than char(4000) ?
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	var $createTableSQL = "CREATE TABLE adodb_logsql (
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		created datetime year to second NOT NULL,
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		sql0 varchar(250) NOT NULL,
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		sql1 varchar(255) NOT NULL,
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		params varchar(255) NOT NULL,
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		tracer varchar(255) NOT NULL,
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		timer decimal(16,6) NOT NULL
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	)";
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	var $tablesSQL = "select a.tabname tablename, ti_nptotal*2 size_in_k, ti_nextns extents, ti_nrows records from systables c, sysmaster:systabnames a, sysmaster:systabinfo b where c.tabname not matches 'sys*' and c.partnum = a.partnum and c.partnum = b.ti_partnum";
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	var $settings = array(
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	'Ratios',
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		'data cache hit ratio' => array('RATIOH',
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		"select round((1-(wt.value / (rd.value + wr.value)))*100,2)
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		from sysmaster:sysprofile wr, sysmaster:sysprofile rd, sysmaster:sysprofile wt
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		where rd.name = 'pagreads' and
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		wr.name = 'pagwrites' and
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		wt.name = 'buffwts'",
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		'=WarnCacheRatio'),
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	'IO',
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		'data reads' => array('IO',
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		"select value from sysmaster:sysprofile where name='pagreads'",
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		'Page reads'),
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		'data writes' => array('IO',
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		"select value from sysmaster:sysprofile where name='pagwrites'",
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		'Page writes'),
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	'Connections',
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		'current connections' => array('SESS',
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		'select count(*) from sysmaster:syssessions',
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		'Number of sessions'),
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	false
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	);
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	function perf_informix(&$conn)
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	{
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		$this->conn =& $conn;
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	}
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}
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?>