diff options
Diffstat (limited to 'contrib/tcl/generic/tclNotify.c')
| -rw-r--r-- | contrib/tcl/generic/tclNotify.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/contrib/tcl/generic/tclNotify.c b/contrib/tcl/generic/tclNotify.c index 19f38f3282ed..939624881527 100644 --- a/contrib/tcl/generic/tclNotify.c +++ b/contrib/tcl/generic/tclNotify.c @@ -12,7 +12,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * SCCS: @(#) tclNotify.c 1.15 97/06/18 17:14:04 + * SCCS: @(#) tclNotify.c 1.16 97/09/15 15:12:52 */ #include "tclInt.h" @@ -761,6 +761,25 @@ Tcl_DoOneEvent(flags) if (flags & TCL_DONT_WAIT) { break; } + + /* + * If Tcl_WaitForEvent has returned 1, + * indicating that one system event has been dispatched + * (and thus that some Tcl code might have been indirectly executed), + * we break out of the loop. + * We do this to give VwaitCmd for instance a chance to check + * if that system event had the side effect of changing the + * variable (so the vwait can return and unwind properly). + * + * NB: We will process idle events if any first, because + * otherwise we might never do the idle events if the notifier + * always gets system events. + */ + + if (result) { + break; + } + } notifier.serviceMode = oldMode; |