ID: 38718
Updated by: [EMAIL PROTECTED]
Reported By: xufuyu at gmail dot com
-Status: Open
+Status: Feedback
Bug Type: COM related
Operating System: Windows 2000
PHP Version: 5.1.6
New Comment:
>$word->Documents->Add(); // memory leaks!!!!!!!!
What does this mean?
How do you detect that?
Previous Comments:
------------------------------------------------------------------------
[2006-09-05 03:36:43] xufuyu at gmail dot com
Description:
------------
Hi
consider the line 5 [ $word->Documents->Add(); ] of this example. When
COM property is IDispatch, the PHP will cause memory leaks.
1 <?php
2 $word = new COM("word.application");
3 print "Loaded Word, version {$word->Version}\n";
4 $word->Visible = 1;
5 $word->Documents->Add(); // memory leaks!!!!!!!!
6 $word->Selection->TypeText("This is a test...");
7 $word->Documents[1]->SaveAs("Useless test.doc");
8 $word->Quit();
9 ?>
On the next example, you will see the status of memory leaks.
<?php
$word = new COM("word.application");
print "Loaded Word, version {$word->Version}\n";
$word->Visible = 1;
$word->Documents->Add();
sleep(3);
for ($j=0; $j<10; $j++) {
for ($i=0; $i<100; $i++) {
$s = $word->Selection;
$s->TypeText("This is a test...");
sleep(3);
}
$word->Documents[1]->SaveAs("Useless test.doc");
$word->Quit();
?>
If I move the IDispatch from the loop, It work fine and memory don't
increase in the loop.
<?php
$word = new COM("word.application");
print "Loaded Word, version {$word->Version}\n";
$word->Visible = 1;
$word->Documents->Add();
sleep(3);
$s = $word->Selection; //
for ($j=0; $j<10; $j++) {
for ($i=0; $i<100; $i++) {
$s->TypeText("This is a test...");
sleep(3);
}
$word->Documents[1]->SaveAs("Useless test.doc");
$word->Quit();
?>
When I check the source code, and set flags to each function, I found
the previous two examples difference with two function,
[php_com_wrap_dispatch] & [php_com_object_free_storage]. I guess
[php_com_object_free_storage] don't release memory clearly when the COM
property is IDispatch.
what's wrong!!!
Thanks.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=38718&edit=1
