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/*
* 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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