From f1672e88f2ba0cd791ed0ef2b4196696cf993c5c Mon Sep 17 00:00:00 2001 From: vasiljevic Date: Thu, 15 Jul 2004 21:20:24 +0000 Subject: Added new fix for the Tcl Bug #770053. Now we conditionaly perform the TclFinalizeNotifier in order to correct broken ref-counting of the notifier thread. --- ChangeLog | 10 ++++++++++ generic/tclNotify.c | 16 ++++++++++++++-- 2 files changed, 24 insertions(+), 2 deletions(-) diff --git a/ChangeLog b/ChangeLog index 99ffef6..85a6979 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,13 @@ +2004-07-15 Zoran Vasiljevic + + * generic/tclEvent.c (NewThreadProc): Backout of changes + to fix the Tcl Bug #770053. See SF bugreport for more info. + + * generic/tclNotify.c (TclFinalizeNotifier): Added conditional + notifier finalization based on the fact that an TclInitNotifier + has been called for the current thread. This fixes the Tcl + Bug #770053 again. Hopefully this time w/o unwanted side-effects. + 2004-07-14 Andreas Kupries * generic/tclIO.h (CHANNEL_INCLOSE): New flag. Set in diff --git a/generic/tclNotify.c b/generic/tclNotify.c index d312e6c..abd4e04 100644 --- a/generic/tclNotify.c +++ b/generic/tclNotify.c @@ -14,7 +14,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclNotify.c,v 1.11 2003/02/15 20:24:10 kennykb Exp $ + * RCS: @(#) $Id: tclNotify.c,v 1.11.2.1 2004/07/15 21:20:25 vasiljevic Exp $ */ #include "tclInt.h" @@ -137,7 +137,15 @@ TclInitNotifier() * * Side effects: * Removes the notifier associated with the current thread from - * the global notifier list. + * the global notifier list. This is done only if the notifier + * was initialized for this thread by call to TclInitNotifier(). + * This is always true for threads which have been seeded with + * an Tcl interpreter, since the call to Tcl_CreateInterp will, + * among other things, call TclInitializeSubsystems() and this + * one will, in turn, call the TclInitNotifier() for the thread. + * For threads created without the Tcl interpreter, though, + * nobody is explicitly nor implicitly calling the TclInitNotifier + * hence, TclFinalizeNotifier should not be performed at all. * *---------------------------------------------------------------------- */ @@ -149,6 +157,10 @@ TclFinalizeNotifier() ThreadSpecificData **prevPtrPtr; Tcl_Event *evPtr, *hold; + if (tsdPtr->threadId == (Tcl_ThreadId)0) { + return; /* Notifier not initialized for the current thread */ + } + Tcl_MutexLock(&(tsdPtr->queueMutex)); for (evPtr = tsdPtr->firstEventPtr; evPtr != (Tcl_Event *) NULL; ) { hold = evPtr; -- cgit v0.12