OOSoundSourcePool(Private) Category Reference

Instance Methods
(uint8_t)	- selectSlotForPriority:

Detailed Description

Definition at line 47 of file OOSoundSourcePool.m.

Method Documentation

selectSlotForPriority:

- (uint8_t) selectSlotForPriority:

(float)

priority

Extends class OOSoundSourcePool.

Definition at line 228 of file OOSoundSourcePool.m.

                                 :(float)priority
{
    uint8_t                 curr, count, expiredLower = kNoSlot, unexpiredLower = kNoSlot, expiredEqual = kNoSlot;
    PoolElement              *element = NULL;
    OOTimeAbsolute            now = [UNIVERSE getTime];
    
#define NEXT(x) (((x) + 1) % _count)
    
    curr = _latest;
    count = _count;
    do
    {
        curr = NEXT(curr);
        element = &_sources[curr];
        
        if (element->source == nil || ![element->source isPlaying])  return curr;    // Best type of slot: empty
        else if (element->priority < priority)
        {
            if (element->expiryTime <= now)  expiredLower = curr; // Second-best type: expired lower-priority
            else if (curr != _reserved) unexpiredLower = curr;      // Third-best type: unexpired lower-priority
        }
        else if (element->priority == priority && element->expiryTime <= now)
        {
            expiredEqual = curr;                                    // Fourth-best type: expired equal-priority.
        }
    } while (--count);
    
    if (expiredLower != kNoSlot)  return expiredLower;
    if (unexpiredLower != kNoSlot)  return unexpiredLower;
    return expiredEqual;    // Will be kNoSlot if none found
}

References count, OOSoundSourcePoolElement::expiryTime, kNoSlot, NEXT, nil, OOSoundSourcePoolElement::priority, and OOSoundSourcePoolElement::source.

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The documentation for this category was generated from the following file:

• src/Core/OOSoundSourcePool.m