From 7a43ce50025a2bc85e4ff7342ef981a5ad47a898 Mon Sep 17 00:00:00 2001
From: welch <welch>
Date: Fri, 2 Jul 1999 06:04:26 +0000
Subject: Added Tcl_SetNotifier and associated typedef. This lets you hook the
 notifier procs.

---
 generic/tcl.h       | 20 +++++++++++++++++++-
 generic/tclNotify.c | 34 +++++++++++++++++++++++++++++++++-
 2 files changed, 52 insertions(+), 2 deletions(-)

diff --git a/generic/tcl.h b/generic/tcl.h
index 7b929f2..4d1ad50 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -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.
  *
- * RCS: @(#) $Id: tcl.h,v 1.50 1999/06/28 19:02:52 wart Exp $
+ * RCS: @(#) $Id: tcl.h,v 1.51 1999/07/02 06:04:26 welch Exp $
  */
 
 #ifndef _TCL
@@ -540,6 +540,9 @@ typedef int (Tcl_SetFromAnyProc) _ANSI_ARGS_((Tcl_Interp *interp,
 typedef void (Tcl_UpdateStringProc) _ANSI_ARGS_((struct Tcl_Obj *objPtr));
 typedef char *(Tcl_VarTraceProc) _ANSI_ARGS_((ClientData clientData,
 	Tcl_Interp *interp, char *part1, char *part2, int flags));
+typedef void (Tcl_CreateFileHandlerProc) _ANSI_ARGS_((int fd, int mask,
+	Tcl_FileProc *proc, ClientData clientData));
+typedef void (Tcl_DeleteFileHandlerProc) _ANSI_ARGS_((int fd));
 
 /*
  * The following structure represents a type of object, which is a
@@ -1053,6 +1056,9 @@ typedef struct Tcl_Time {
     long usec;			/* Microseconds. */
 } Tcl_Time;
 
+typedef void (Tcl_SetTimerProc) _ANSI_ARGS_((Tcl_Time *timePtr));
+typedef int (Tcl_WaitForEventProc) _ANSI_ARGS_((Tcl_Time *timePtr));
+
 /*
  * Bits to pass to Tcl_CreateFileHandler and Tcl_CreateChannelHandler
  * to indicate what sorts of events are of interest:
@@ -1218,6 +1224,18 @@ typedef enum Tcl_PathType {
 } Tcl_PathType;
 
 /*
+ * The following structure represents the Notifier functions that
+ * you can override with the Tcl_SetNotifier call.
+ */
+
+typedef struct Tcl_NotifierProcs {
+    Tcl_SetTimerProc *setTimerProc;
+    Tcl_WaitForEventProc *waitForEventProc;
+    Tcl_CreateFileHandlerProc *createFileHandlerProc;
+    Tcl_DeleteFileHandlerProc *deleteFileHandlerProc;
+} Tcl_NotifierProcs;
+
+/*
  * The following structure represents a user-defined encoding.  It collects
  * together all the functions that are used by the specific encoding.
  */
diff --git a/generic/tclNotify.c b/generic/tclNotify.c
index 15553b9..8d4d270 100644
--- a/generic/tclNotify.c
+++ b/generic/tclNotify.c
@@ -13,12 +13,14 @@
  * 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 1.4 1999/04/16 00:46:50 stanton Exp $
+ * RCS: @(#) $Id: tclNotify.c,v 1.5 1999/07/02 06:04:26 welch Exp $
  */
 
 #include "tclInt.h"
 #include "tclPort.h"
 
+extern TclStubs tclStubs;
+
 /*
  * For each event source (created with Tcl_CreateEventSource) there
  * is a structure of the following type:
@@ -163,6 +165,36 @@ TclFinalizeNotifier()
 /*
  *----------------------------------------------------------------------
  *
+ * Tcl_SetNotifier --
+ *
+ *	Install a set of alternate functions for use with the notifier.
+ #	In particular, this can be used to install the Xt-based
+ *	notifier for use with the Browser plugin.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Overstomps part of the stub vector.  This relies on hooks
+ *	added to the default procedures in case those are called
+ *	directly (i.e., not through the stub table.)
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+Tcl_SetNotifier(notifierProcPtr)
+    Tcl_NotifierProcs *notifierProcPtr;
+{
+    tclStubs.tcl_CreateFileHandler = notifierProcPtr->createFileHandlerProc;
+    tclStubs.tcl_DeleteFileHandler = notifierProcPtr->deleteFileHandlerProc;
+    tclStubs.tcl_SetTimer = notifierProcPtr->setTimerProc;
+    tclStubs.tcl_WaitForEvent = notifierProcPtr->waitForEventProc;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
  * Tcl_CreateEventSource --
  *
  *	This procedure is invoked to create a new source of events.
-- 
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