static void
AddWriter ( struct AHIRequest *ioreq,
struct AHIDevUnit *iounit,
struct AHIBase *AHIBase )
{
int channel;
// Search for a free channel, and use if found
for(channel = 0; channel < iounit->Channels; channel++)
{
if(iounit->Voices[channel].NextOffset == (ULONG) FREE)
{
Enqueue((struct List *) &iounit->PlayingList,(struct Node *) ioreq);
PlayRequest(channel, ioreq, iounit, AHIBase);
break;
}
}
if(channel == iounit->Channels)
{
struct AHIRequest *ioreq2;
// No free channel found. Check if we can kick the last one out...
// There is at least on node in the list, and the last one has lowest priority.
ioreq2 = (struct AHIRequest *) iounit->PlayingList.mlh_TailPred;
if(ioreq->ahir_Std.io_Message.mn_Node.ln_Pri
> ioreq2->ahir_Std.io_Message.mn_Node.ln_Pri)
{
// Let's steal his place!
RemTail((struct List *) &iounit->PlayingList);
channel = GetExtras(ioreq2)->Channel;
GetExtras(ioreq2)->Channel = NOCHANNEL;
Enqueue((struct List *) &iounit->SilentList,(struct Node *) ioreq2);
Enqueue((struct List *) &iounit->PlayingList,(struct Node *) ioreq);
PlayRequest(channel, ioreq, iounit, AHIBase);
}
else
{
// Let's be quiet for a while.
GetExtras(ioreq)->Channel = NOCHANNEL;
Enqueue((struct List *) &iounit->SilentList,(struct Node *) ioreq);
}
}
}
void sdpPlayerExample::QSlotPlayClicked(void)
{
mtsDouble playTime = Time; //this should be read from the state table!!!
playTime.Timestamp() = TimeServer.GetAbsoluteTimeInSeconds();
if (Sync) {
PlayRequest(playTime);
} else {
//not quite thread safe, if there is mts play call this can be corrupt.
State = PLAY;
PlayUntilTime = PlayerDataInfo.DataEnd();
PlayStartTime = playTime;
}
}
