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/*
* DNN - Data News Network
*
* by Stephane Chatty and Stephane Sire
*
* Copyright 1993-1996
* Centre d'Etudes de la Navigation Aerienne (CENA)
*
* Multiplexer
*
* $Id$
* $CurLog$
*/
#include "Loop.h"
IvlInitializerFor<IvlBaseMultiplexer> IvlBaseMultiplexer::Initializer;
bool IvlBaseMultiplexer::ClassInitialized = false;
IvlList* IvlBaseMultiplexer::GlobalHooks = 0;
IvlList* IvlBaseMultiplexer::GlobalFinalHooks = 0;
IvlBaseMultiplexer* IvlMpx = 0;
void
IvlBaseMultiplexer :: ClassInit ()
{
if (!ClassInitialized) {
ClassInitialized = true;
GlobalHooks = new IvlList;
GlobalFinalHooks = new IvlList;
}
}
void
IvlBaseMultiplexer :: AddGlobalHook (IvlMpxHook* h, bool final)
{
GlobalHooks->Append ((void*) h);
if (final)
GlobalFinalHooks->Append ((void*) h);
}
void
IvlBaseMultiplexer :: RemoveGlobalHook (IvlMpxHook* h, bool final)
{
GlobalHooks->Remove ((void*) h);
if (final)
GlobalFinalHooks->Remove ((void*) h);
}
IvlBaseMultiplexer :: IvlBaseMultiplexer ()
{
}
IvlBaseMultiplexer :: ~IvlBaseMultiplexer ()
{
}
/* useless? */
MPX_RES
IvlBaseMultiplexer :: Run ()
{
return Loop ();
}
IvlMultiplexer :: IvlMultiplexer ()
: IvlBaseMultiplexer (),
Hooks (),
FinalHooks ()
{
}
IvlMultiplexer :: ~IvlMultiplexer ()
{
}
void
IvlMultiplexer :: AddHook (IvlMpxHook* h, bool final)
{
Hooks.Append ((void*) h);
if (final)
FinalHooks.Append ((void*) h);
}
void
IvlMultiplexer :: RemoveHook (IvlMpxHook* h, bool final)
{
Hooks.Remove ((void*) h);
if (final)
FinalHooks.Remove ((void*) h);
}
void
IvlMultiplexer :: AddFinalHook (IvlMpxHook* h)
{
FinalHooks.Append ((void*) h);
}
void
IvlMultiplexer :: RemoveFinalHook (IvlMpxHook* h)
{
FinalHooks.Remove ((void*) h);
}
void
IvlMultiplexer :: ExecHooks (bool final)
{
IvlList* hooks = final ? &FinalHooks : &Hooks;
IvlListIter li = *hooks;
while (++li) {
IvlMpxHook* h = (IvlMpxHook*) *li;
(*h)();
}
}
MPX_RES
IvlMultiplexer :: Loop ()
{
Looping = true;
while (Looping)
ExecHooks (false);
ExecHooks (true);
return isMpxTerminated;
}
void
IvlMultiplexer :: Stop ()
{
Looping = false;
}
void
IvlDnnOpen (IvlBaseMultiplexer* m)
{
IvlMpx = m ? m : new IvlMultiplexer;
IvlListIter li = *IvlBaseMultiplexer::GlobalHooks;
while (++li)
IvlMpx->AddHook ((IvlMpxHook*) *li, false);
li = *IvlBaseMultiplexer::GlobalFinalHooks;
while (++li)
IvlMpx->AddFinalHook ((IvlMpxHook*) *li);
}
MPX_RES
IvlLoop ()
{
return IvlMpx->Loop ();
}
void
IvlStop ()
{
IvlMpx->Stop ();
}
void
IvlClose ()
{
}
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