This mail is an automated notification from the bugs tracker of the project: GNUstep.
/**************************************************************************/ [bugs #8374] Full Item Snapshot: URL: <http://savannah.gnu.org/bugs/?func=detailitem&item_id=8374> Project: GNUstep Submitted by: Willem Rein Oudshoorn On: Tue 03/30/04 at 13:13 Category: Base/Foundation Severity: 3 - Ordinary Item Group: Bug Resolution: None Assigned to: None Status: Open Summary: NSNotificationCenter can deadlock Original Submission: There is a lock protecting the list of notifications. This lock is grabbed before sending the notifications and released after sending the notifications. This can lead to a deadlock when multiple threads are using the notification center. The attached program shows in a very artificial situation how the deadlock can occur. I just spend 3 days figuring this out in a complicated situation involving multiple threads, DO and launched tasks. So it is not just a theoretical problem. I have not looked deeply at it, but probably just making a copy instead of maintaining the lock will solve it. (But I have to look again.) Wim Oudshoorn File Attachments ------------------- ------------------------------------------------------- Date: Tue 03/30/04 at 13:13 Name: deadlocktest.tar.gz Size: 837KB By: wim Example of NSNotificationCenter deadlock. http://savannah.gnu.org/bugs/download.php?item_id=8374&item_file_id=1143 For detailed info, follow this link: <http://savannah.gnu.org/bugs/?func=detailitem&item_id=8374> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/ _______________________________________________ Bug-gnustep mailing list [EMAIL PROTECTED] http://mail.gnu.org/mailman/listinfo/bug-gnustep
