From 618df147e19d12075f351930d6bf85e9b171c99c Mon Sep 17 00:00:00 2001
From: chatty
Date: Tue, 27 Jul 1993 14:02:13 +0000
Subject: Initial revision

---
 comm/TkMultiplexer.cc | 117 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 comm/TkMultiplexer.cc

(limited to 'comm/TkMultiplexer.cc')

diff --git a/comm/TkMultiplexer.cc b/comm/TkMultiplexer.cc
new file mode 100644
index 0000000..3272851
--- /dev/null
+++ b/comm/TkMultiplexer.cc
@@ -0,0 +1,117 @@
+/*
+ *	The Unix Channel
+ *
+ *	by Michel Beaudouin-Lafon and Stephane Chatty
+ *
+ *	Copyright 1990-1993
+ *	Laboratoire de Recherche en Informatique (LRI)
+ *	Centre d'Etudes de la Navigation Aerienne
+ *
+ *	Tk-based multiplexers
+ *
+ *	$Id$
+ *	$CurLog$
+ */
+
+#include "TkMultiplexer.h"
+#include "error.h"
+
+#include <memory.h>
+
+static void
+ioHandler (ClientData client_data, int mask)
+{
+	UchChannel* ch = (UchChannel*) client_data;
+	if (mask & TK_WRITABLE)
+		ch->HandleWrite ();
+	if (mask & TK_READABLE)
+		ch->HandleRead ();
+}
+
+UchTkMultiplexer :: UchTkMultiplexer ()
+: UchBaseMultiplexer ()
+{
+	memset (Active, 0, NFILE * sizeof (bool));
+}
+
+
+UchTkMultiplexer :: ~UchTkMultiplexer ()
+{
+}
+
+void
+UchTkMultiplexer :: SetMasks (int fd, IOMODE mode)
+{
+	UchChannel* ch = Channels [fd];
+	if (!ch)
+		return;
+
+	/* remove if already there */
+	if (Active [fd]) {
+		Tk_DeleteFileHandler (fd);
+		ReadCount--;
+	}
+
+	/* add channel */
+	int mask = 0;
+
+	if (mode & IORead)
+		mask |= TK_READABLE;
+
+	if (mode & IOWrite)
+		mask |= TK_WRITABLE;
+
+	if (mode & IOSelect)
+		Error (ErrWarn, "AddChannel", "select condition ignored");
+
+	if (mask) {
+		Tk_CreateFileHandler (fd, mask, ioHandler, (ClientData) ch);
+		ReadCount++;
+		Active [fd] = TRUE;
+	}
+}
+
+void
+UchTkMultiplexer :: FireTimers (ClientData mpx)
+{
+	CcuCoreTimer::Fire (((UchTkMultiplexer*) mpx)->GetTimerSet ());
+}
+
+void
+UchTkMultiplexer :: SetTimeOut (Millisecond delay)
+{
+	TimeOut = Tk_CreateTimerHandler (int (delay), &UchTkMultiplexer::FireTimers, (ClientData) this);
+}
+
+void
+UchTkMultiplexer :: SuppressTimeOut ()
+{
+	Tk_DeleteTimerHandler (TimeOut);
+	TimeOut = 0;
+}
+
+void
+UchTkMultiplexer :: FireSignals (ClientData mpx)
+{
+	((UchTkMultiplexer*) mpx)->HandleDeferredSignals ();
+}
+
+void
+UchTkMultiplexer :: AddSignalHook ()
+{
+	Tk_DoWhenIdle (&UchTkMultiplexer::FireSignals, (ClientData) this);
+}
+		
+MPX_RES
+UchTkMultiplexer :: Loop ()
+{
+	Looping = TRUE;
+
+	Tk_MainLoop ();
+
+	if (Looping) {
+		Looping = FALSE;
+		return isMpxEmpty;
+	}
+	return isMpxTerminated;
+}
-- 
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