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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 30 |
1 files changed, 30 insertions, 0 deletions
@@ -1,3 +1,33 @@ +2003-07-21 Mo DeJong <mdejong@users.sourceforge.net> + + Check that the thread incrementing or decrementing + the ref count of a Tcl_Obj is the thread that + originally allocated the thread. This fail fast + behavior will catch programming errors that + allow a single Tcl_Obj to be accessed from multiple + threads. + + * generic/tcl.h (Tcl_Obj): Add allocThread member + to Tcl_Obj. This member records the thread id the + Tcl_Obj was allocated. It is used to check that + any future ref count incr or decr is done from + the same thread that allocated the Tcl_Obj. + This member is defined only when threads and + mem debug are enabled. + * generic/tclInt.h (TclNewObj, TclDbNewObj, + TclDecrRefCount): + Define TclNewObj and TclDbNewObj using TclDbInitNewObj + when mem debug is enabled. This fixes a problem where + TclNewObj calls did not work the same as TclDbNewObj + when mem debug was enabled. + * generic/tclObj.c (TclDbInitNewObj, Tcl_DbIncrRefCount, + Tcl_DbDecrRefCount): Add new helper to init Tcl_Obj + members when mem debug is enabled. Init the allocThread + member in TclDbInitNewObj and check it in + Tcl_DbIncrRefCount and Tcl_DbDecrRefCount to make sure + a Tcl_Obj allocated in one thread is not being acted + upon in another thread. + 2003-07-21 Vince Darley <vincentdarley@users.sourceforge.net> * test/cmdAH.test: ensure certain tests run in local filesystem |