bool import_FrameKit_frames(istream &input,ostream &output)
{
FrObject *obj ;
FrFrame *fr ;
FrSymbol *symbolMAKEFRAME = FrSymbolTable::add(stringMAKEFRAME) ;
FrSymbol *symbolMAKEFROLD = FrSymbolTable::add(stringMAKEFR_OLD) ;
if (output)
output << "Importing frames" << endl ;
bool oldvirt = read_virtual_frames(true) ;
if (!VFrame_Info)
read_virtual_frames(oldvirt) ;
while (!input.eof())
{
input >> obj ;
if (obj)
{
if (obj->consp() &&
(((FrCons*)obj)->first() == symbolMAKEFRAME ||
((FrCons*)obj)->first() == symbolMAKEFROLD))
{
fr = FrameKit_to_FramepaC((FrList*)obj) ;
if (!fr)
{
read_virtual_frames(oldvirt) ;
return false ; // error reading stream
}
if (output)
output << stringREAD << fr->frameName() << endl ;
}
else if (output)
{
output << stringREAD << obj->objTypeName() << ' ' ;
if (obj->framep())
output << ((FrFrame*)obj)->frameName() ;
else if (obj->consp())
output << "(" << obj->car() << " ... )" ;
else
output << obj ;
output << endl ;
}
obj->freeObject() ;
}
}
read_virtual_frames(oldvirt) ;
return true ;
}
static bool discard_dirty_frame(const FrObject *obj, va_list args)
{
FrVarArg(uint32_t,thres) ;
FrVarArg(int *,discarded) ;
FrFrame *frame = ((FrSymbol*)obj)->symbolFrame() ;
// throw out any and all unlocked virtual frames, even if dirty, that were
// last used before the threshold value of the clock
if (frame && frame->isVFrame() && !frame->isLocked() &&
frame->getLRUclock() < thres)
{
if (frame->dirtyFrame())
frame->frameName()->commitFrame() ;
frame->discard() ; // discard the frame
(*discarded)++ ;
}
return true ;
}