digitalmars.D.bugs - [Issue 2890] New: std.stdio.write family blocks on file lock
- d-bugmail puremagic.com (27/30) Apr 24 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2890
- d-bugmail puremagic.com (9/9) Apr 24 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2890
- d-bugmail puremagic.com (8/8) Apr 30 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2890
- d-bugmail puremagic.com (11/11) May 15 2009 http://d.puremagic.com/issues/show_bug.cgi?id=2890
http://d.puremagic.com/issues/show_bug.cgi?id=2890 Summary: std.stdio.write family blocks on file lock Product: D Version: 2.029 Platform: PC OS/Version: Linux Status: NEW Severity: major Priority: P2 Component: Phobos AssignedTo: bugzilla digitalmars.com ReportedBy: graham.stjack internode.on.net In multi-threaded applications, File.LockingTextWriter is not correctly locking/unlocking the underlying FILE* handle, resulting in deadlocks. The more trace prints you put in to find the problem, the worse it gets. The problem seems to be related to recent dmd bug-fixes, and I worked around it with the following change. It looks like LockingTextWriter needs to be revisited, maybe by reinstating the non-hacked implementation. $ diff dmd/src/phobos/std/stdio.d stdio.d 922c922 < //return LockingTextWriter(this); ---return LockingTextWriter(this);925,926c925,926 < auto result = LockingTextWriter(this); < return result; ---//auto result = LockingTextWriter(this); //return result;--
Apr 24 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2890 Created an attachment (id=339) --> (http://d.puremagic.com/issues/attachment.cgi?id=339&action=view) A test-case This is more complicated than it needs to be, but I already had it lying about for another bug report. If deadlocks at various points using dmd 2.029, but when I modify std.stdio as described in the bug report, it works every time. --
Apr 24 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2890 dsimcha yahoo.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |dsimcha yahoo.com *** Bug 2907 has been marked as a duplicate of this bug. *** --
Apr 30 2009
http://d.puremagic.com/issues/show_bug.cgi?id=2890 Walter Bright <bugzilla digitalmars.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED 12:19:25 PDT --- Fixed dmd 2.030 -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
May 15 2009