Thread exit handler marks the current thread as un-initialized.

This allows exit handlers that are registered later to
re-initialize this subsystem in case they need to use some sync
primitives (cond variables) from this file again.

1 files changed, 6 insertions, 12 deletions

diff --git a/win/tclWinThrd.c b/win/tclWinThrd.c
index 98137c4..650e523 100644
--- a/win/tclWinThrd.c
+++ b/win/tclWinThrd.c
@@ -9,7 +9,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclWinThrd.c,v 1.42 2006/08/10 12:15:32 dkf Exp $
+ * RCS: @(#) $Id: tclWinThrd.c,v 1.43 2007/03/24 09:33:02 vasiljevic Exp $
  */
 
 #include "tclWinInt.h"
@@ -92,13 +92,11 @@ static Tcl_ThreadDataKey dataKey;
  *				ThreadSpecificData is created.
  * WIN_THREAD_RUNNING		Running, not waiting.
  * WIN_THREAD_BLOCKED		Waiting, or trying to wait.
- * WIN_THREAD_DEAD		Dying - no per-thread event anymore.
  */
 
 #define WIN_THREAD_UNINIT	0x0
 #define WIN_THREAD_RUNNING	0x1
 #define WIN_THREAD_BLOCKED	0x2
-#define WIN_THREAD_DEAD		0x4
 
 /*
  * The per condition queue pointers and the Mutex used to serialize access to
@@ -600,14 +598,6 @@ Tcl_ConditionWait(
     int doExit = 0;		/* True if we need to do exit setup */
     ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
 
-    if (tsdPtr->flags & WIN_THREAD_DEAD) {
-	/*
-	 * No more per-thread event on which to wait.
-	 */
-
-	return;
-    }
-
     /*
      * Self initialize the two parts of the condition. The per-condition and
      * per-thread parts need to be handled independently.
@@ -768,6 +758,10 @@ Tcl_ConditionNotify(
     if (*condPtr != NULL) {
 	winCondPtr = *((WinCondition **)condPtr);
 
+	if (winCondPtr == NULL) {
+	    return;
+	}
+
 	/*
 	 * Loop through all the threads waiting on the condition and notify
 	 * them (i.e., broadcast semantics). The queue manipulation is guarded
@@ -817,7 +811,7 @@ FinalizeConditionEvent(
     ClientData data)
 {
     ThreadSpecificData *tsdPtr = (ThreadSpecificData *) data;
-    tsdPtr->flags = WIN_THREAD_DEAD;
+    tsdPtr->flags = WIN_THREAD_UNINIT;
     CloseHandle(tsdPtr->condEvent);
 }