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#include <stdlib.h>
#include "bu/programchain.h"
#include "bu/programlink.h"
using namespace Bu;
Bu::ProgramChain::ProgramChain()
{
}
Bu::ProgramChain::~ProgramChain()
{
}
bool Bu::ProgramChain::addLink( ProgramLink *pLink )
{
if( pLink->init() == false )
{
emergencyShutdown();
return false;
}
lLink.append( pLink );
pLink->setChain( this );
return true;
}
ProgramLink *Bu::ProgramChain::getLink( const char *lpName )
{
char a;
a = lpName[0];
return NULL;
}
ProgramLink *Bu::ProgramChain::getBaseLink()
{
return NULL;
}
bool Bu::ProgramChain::execChainOnce()
{
for( Bu::List<Bu::ProgramLink *>::iterator i = lLink.begin();
i != lLink.end(); i++ )
{
if( (*i)->timeSlice() == false )
{
emergencyShutdown();
return false;
}
}
return true;
}
bool Bu::ProgramChain::enterChainLoop()
{
for(;;)
{
if( execChainOnce() == false )
{
return false;
}
}
return true;
}
void Bu::ProgramChain::emergencyShutdown()
{
for( Bu::List<Bu::ProgramLink *>::iterator i = lLink.begin();
i != lLink.end(); i++ )
{
(*i)->deInit();
delete *i;
}
lLink.clear();
}
LinkMessage *Bu::ProgramChain::broadcastIRM( LinkMessage *pMsgOut, ProgramLink *pSender )
{
for( Bu::List<Bu::ProgramLink *>::iterator i = lLink.begin();
i != lLink.end(); i++ )
{
LinkMessage *pMsg = (*i)->processIRM( pMsgOut );
if( pMsg != NULL )
{
delete pMsgOut;
return pMsg;
}
}
delete pMsgOut;
return NULL;
}
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