GstBridgePrimeRetry.h

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#pragma once
 
#include <QtCore/qglobal.h>
 
#if defined(QGC_HAS_ANY_GPU_PATH)
 
namespace GstBridgePrimeRetry {
 
struct PrimeRetryState
{
    bool primed = false;
    bool primeAttempted = false;
    int nullCount = 0;
    int maxRetries = 16;
};
 
enum class Decision
{
    AlreadyPrimed,  
    ShouldRetry,    
    GiveUp          
};
 
inline Decision primeRetryGuard(PrimeRetryState& s)
{
    if (s.primed) {
        return Decision::AlreadyPrimed;
    }
    if (s.primeAttempted) {
        return Decision::GiveUp;
    }
    s.primeAttempted = true;
    return Decision::ShouldRetry;
}
 
inline bool rearmRetry(PrimeRetryState& s)
{
    ++s.nullCount;
    if (s.nullCount <= s.maxRetries) {
        s.primeAttempted = false;
        return true;
    }
    return false;
}
 
inline bool justGaveUp(const PrimeRetryState& s)
{
    return s.nullCount == s.maxRetries + 1;
}
 
inline void resetRetry(PrimeRetryState& s)
{
    s.primed = false;
    s.primeAttempted = false;
    s.nullCount = 0;
}
 
inline bool rearmAfterExhaustion(PrimeRetryState& s)
{
    if (s.primed) {
        return false;
    }
    if (s.primeAttempted && s.nullCount > s.maxRetries) {
        s.primeAttempted = false;
        s.nullCount = 0;
        return true;
    }
    return false;
}
 
}  // namespace GstBridgePrimeRetry
 
#endif  // QGC_HAS_ANY_GPU_PATH