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302 lines
6.0 KiB
PHP
302 lines
6.0 KiB
PHP
--TEST--
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Bug #43497 (OCI8 XML/getClobVal aka temporary LOBs leak UGA memory)
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--SKIPIF--
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<?php
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$target_dbs = array('oracledb' => true, 'timesten' => false); // test runs on these DBs
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require(dirname(__FILE__).'/skipif.inc');
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if (getenv('SKIP_SLOW_TESTS')) die('skip slow tests excluded by request');
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if (preg_match('/^1[01]\./', oci_client_version()) != 1) {
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die("skip expected output only valid with Oracle 10g or greater version of client");
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}
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?>
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--FILE--
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<?php
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require dirname(__FILE__).'/connect.inc';
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function sessionid($c) // determines and returns current session ID
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{
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$query = "select sid from v\$session where audsid = userenv('sessionid')";
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$stmt = oci_parse($c, $query);
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if (oci_execute($stmt, OCI_DEFAULT)) {
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$row = oci_fetch($stmt);
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return oci_result($stmt, 1);
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}
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return null;
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}
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function templobs($c, $sid) // returns number of temporary LOBs
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{
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$query = "select abstract_lobs from v\$temporary_lobs where sid = " . $sid;
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$stmt = oci_parse($c, $query);
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if (oci_execute($stmt, OCI_DEFAULT)) {
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$row = oci_fetch($stmt);
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$val = oci_result($stmt, 1);
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oci_free_statement($stmt);
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return $val;
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}
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return null;
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}
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// Read all XML data using explicit LOB locator
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function readxmltab_ex($c)
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{
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$stmt = oci_parse($c, "select extract(xml, '/').getclobval() from bug43497_tab");
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$cntchk = 0;
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if (oci_execute($stmt)) {
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while ($result = oci_fetch_array($stmt, OCI_NUM)) {
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$result[0]->free(); // cleanup properly
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++$cntchk;
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}
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}
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echo "Loop count check = $cntchk\n";
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}
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// Read all XML data using explicit LOB locator but without freeing the temp lobs
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function readxmltab_ex_nofree($c)
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{
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$stmt = oci_parse($c, "select extract(xml, '/').getclobval() from bug43497_tab");
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$cntchk = 0;
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if (oci_execute($stmt)) {
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while ($result = oci_fetch_array($stmt, OCI_NUM)) {
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++$cntchk;
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}
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}
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echo "Loop count check = $cntchk\n";
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}
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// Read all XML data using implicit LOB locator
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function readxmltab_im($c)
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{
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$stmt = oci_parse($c, "select extract(xml, '/').getclobval() from bug43497_tab");
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$cntchk = 0;
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if (oci_execute($stmt)) {
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while ($result = oci_fetch_array($stmt, OCI_NUM+OCI_RETURN_LOBS)) {
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++$cntchk;
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}
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}
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echo "Loop count check = $cntchk\n";
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}
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function createxmltab($c) // create table w/ field of XML type
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{
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@dropxmltab($c);
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$stmt = oci_parse($c, "create table bug43497_tab (id number primary key, xml xmltype)");
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oci_execute($stmt);
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}
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function dropxmltab($c) // delete table
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{
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$stmt = oci_parse($c, "drop table bug43497_tab");
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oci_execute($stmt);
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}
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function fillxmltab($c)
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{
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for ($id = 1; $id <= 100; $id++) {
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// create an XML element string with random data
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$s = "<data>";
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for ($j = 0; $j < 128; $j++) {
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$s .= rand();
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}
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$s .= "</data>\n";
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for ($j = 0; $j < 4; $j++) {
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$s .= $s;
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}
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$data = "<?xml version=\"1.0\"?><records>" . $s . "</records>";
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// insert XML data into database
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$stmt = oci_parse($c, "insert into bug43497_tab(id, xml) values (:id, sys.xmltype.createxml(:xml))");
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oci_bind_by_name($stmt, ":id", $id);
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$clob = oci_new_descriptor($c, OCI_D_LOB);
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oci_bind_by_name($stmt, ":xml", $clob, -1, OCI_B_CLOB);
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$clob->writetemporary($data);
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oci_execute($stmt);
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$clob->close();
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$clob->free();
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}
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}
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// Initialize
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createxmltab($c);
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fillxmltab($c);
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// Run Test
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$sid = sessionid($c);
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echo "Explicit LOB use\n";
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for ($i = 1; $i <= 10; $i++) {
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echo "\nRun = " . $i . "\n";
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echo "Temporary LOBs = " . templobs($c, $sid) . "\n";
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readxmltab_ex($c);
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}
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echo "\nImplicit LOB use\n";
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for ($i = 1; $i <= 10; $i++) {
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echo "\nRun = " . $i . "\n";
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echo "Temporary LOBs = " . templobs($c, $sid) . "\n";
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readxmltab_im($c);
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}
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echo "\nExplicit LOB with no free\n";
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for ($i = 1; $i <= 10; $i++) {
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echo "\nRun = " . $i . "\n";
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echo "Temporary LOBs = " . templobs($c, $sid) . "\n";
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readxmltab_ex_nofree($c);
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}
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// Cleanup
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dropxmltab($c);
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oci_close($c);
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echo "Done\n";
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?>
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--EXPECT--
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Explicit LOB use
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Run = 1
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Temporary LOBs = 0
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Loop count check = 100
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Run = 2
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Temporary LOBs = 0
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Loop count check = 100
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Run = 3
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Temporary LOBs = 0
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Loop count check = 100
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Run = 4
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Temporary LOBs = 0
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Loop count check = 100
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Run = 5
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Temporary LOBs = 0
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Loop count check = 100
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Run = 6
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Temporary LOBs = 0
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Loop count check = 100
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Run = 7
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Temporary LOBs = 0
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Loop count check = 100
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Run = 8
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Temporary LOBs = 0
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Loop count check = 100
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Run = 9
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Temporary LOBs = 0
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Loop count check = 100
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Run = 10
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Temporary LOBs = 0
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Loop count check = 100
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Implicit LOB use
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Run = 1
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Temporary LOBs = 0
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Loop count check = 100
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Run = 2
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Temporary LOBs = 0
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Loop count check = 100
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Run = 3
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Temporary LOBs = 0
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Loop count check = 100
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Run = 4
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Temporary LOBs = 0
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Loop count check = 100
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Run = 5
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Temporary LOBs = 0
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Loop count check = 100
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Run = 6
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Temporary LOBs = 0
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Loop count check = 100
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Run = 7
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Temporary LOBs = 0
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Loop count check = 100
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Run = 8
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Temporary LOBs = 0
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Loop count check = 100
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Run = 9
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Temporary LOBs = 0
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Loop count check = 100
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Run = 10
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Temporary LOBs = 0
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Loop count check = 100
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Explicit LOB with no free
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Run = 1
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Temporary LOBs = 0
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Loop count check = 100
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Run = 2
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Temporary LOBs = 0
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Loop count check = 100
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Run = 3
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Temporary LOBs = 0
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Loop count check = 100
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Run = 4
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Temporary LOBs = 0
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Loop count check = 100
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Run = 5
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Temporary LOBs = 0
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Loop count check = 100
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Run = 6
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Temporary LOBs = 0
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Loop count check = 100
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Run = 7
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Temporary LOBs = 0
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Loop count check = 100
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Run = 8
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Temporary LOBs = 0
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Loop count check = 100
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Run = 9
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Temporary LOBs = 0
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Loop count check = 100
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Run = 10
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Temporary LOBs = 0
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Loop count check = 100
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Done
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