note 74560 added to function.ftok
| From: | marco at greenlightsolutions dot nl | Date: | Tue, 17 Apr 2007 15:08:38 +0000 |
| Subject: | note 74560 added to function.ftok | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-125522@lists.php.net to get a copy of this message | ||
As ftok uses only the last 16 bits of the inode of the file, you can get collisions on large
filesystems. Unfortunately, on large filesystems you can get collisions rather quickly: if you have
a collection of 350-400 files, odds are that two of them have inodes with the same last 16 bits. So
I've taken to using fileinode instead of ftok with functions like shmop_open.
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Server IP: 83.137.20.120
Probable Submitter: 2001:888:10:58c::2
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Manual Page -- http://www.php.net/manual/en/function.ftok.php
Edit -- https://master.php.net/note/edit/74560
Del: integrated -- https://master.php.net/note/delete/74560/integrated
Del: useless -- https://master.php.net/note/delete/74560/useless
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Del: non-english -- https://master.php.net/note/delete/74560/non-english
Del: in docs -- https://master.php.net/note/delete/74560/in+docs
Del: other reasons-- https://master.php.net/note/delete/74560
Reject -- https://master.php.net/note/reject/74560
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