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| author | dgp <dgp@users.sourceforge.net> | 2012-10-24 19:21:41 (GMT) |
|---|---|---|
| committer | dgp <dgp@users.sourceforge.net> | 2012-10-24 19:21:41 (GMT) |
| commit | 424ae77983a41b07074316bd54860a29d773b8cd (patch) | |
| tree | 76a50d14d8f6d2c5a41b0fbd27b7ea2a17c2b640 /macosx/tkMacOSXWm.c | |
| parent | 044297cba1305580c09b0823a7d9da735435cc1e (diff) | |
| parent | f84f7e53e3c8ba30b1a3861253c44e99a753d77c (diff) | |
| download | tk-424ae77983a41b07074316bd54860a29d773b8cd.zip tk-424ae77983a41b07074316bd54860a29d773b8cd.tar.gz tk-424ae77983a41b07074316bd54860a29d773b8cd.tar.bz2 | |
3574893 Add overlooked toplevel ref count maintenance in the [wm manage|forget]
operations that could cause segfaults due to premature free of structs.
Diffstat (limited to 'macosx/tkMacOSXWm.c')
| -rw-r--r-- | macosx/tkMacOSXWm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/macosx/tkMacOSXWm.c b/macosx/tkMacOSXWm.c index 1bf6d2c..68cbb00 100644 --- a/macosx/tkMacOSXWm.c +++ b/macosx/tkMacOSXWm.c @@ -1659,7 +1659,9 @@ WmForgetCmd( TkFocusJoin(winPtr); Tk_UnmapWindow(frameWin); + macWin->toplevel->referenceCount--; macWin->toplevel = winPtr->parentPtr->privatePtr->toplevel; + macWin->toplevel->referenceCount++; macWin->flags &= ~TK_HOST_EXISTS; TkWmDeadWindow(winPtr); @@ -2448,7 +2450,9 @@ WmManageCmd( } wmPtr = winPtr->wmInfoPtr; winPtr->flags &= ~TK_MAPPED; + macWin->toplevel->referenceCount--; macWin->toplevel = macWin; + macWin->toplevel->referenceCount++; RemapWindows(winPtr, macWin); winPtr->flags |= (TK_TOP_HIERARCHY|TK_TOP_LEVEL|TK_HAS_WRAPPER|TK_WIN_MANAGED); @@ -6599,7 +6603,9 @@ RemapWindows( if (winPtr->window != None) { MacDrawable *macWin = (MacDrawable *) winPtr->window; + macWin->toplevel->referenceCount--; macWin->toplevel = parentWin->toplevel; + macWin->toplevel->referenceCount++; winPtr->flags &= ~TK_MAPPED; #ifdef TK_REBUILD_TOPLEVEL winPtr->flags |= TK_REBUILD_TOPLEVEL; |