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SDRdaemon: manage data read queue full

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This commit is contained in:
f4exb 2018-08-28 14:04:30 +02:00
parent 8196a70753
commit b07277a5e2
2 changed files with 13 additions and 4 deletions
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14
sdrdaemon/channel/sdrdaemondatareadqueue.cpp
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@ -28,7 +28,8 @@ const uint32_t SDRDaemonDataReadQueue::MaxSize = 20;
SDRDaemonDataReadQueue::SDRDaemonDataReadQueue() : SDRDaemonDataReadQueue::SDRDaemonDataReadQueue() :
m_dataBlock(0), m_dataBlock(0),
m_blockIndex(1), m_blockIndex(1),
m_sampleIndex(0) m_sampleIndex(0),
m_full(false)
{} {}
SDRDaemonDataReadQueue::~SDRDaemonDataReadQueue() SDRDaemonDataReadQueue::~SDRDaemonDataReadQueue()
@ -44,14 +45,21 @@ SDRDaemonDataReadQueue::~SDRDaemonDataReadQueue()
void SDRDaemonDataReadQueue::push(SDRDaemonDataBlock* dataBlock) void SDRDaemonDataReadQueue::push(SDRDaemonDataBlock* dataBlock)
{ {
if (size() > MaxSize) if (size() >= MaxSize)
{ {
qWarning("SDRDaemonDataReadQueue::push: queue is full"); qWarning("SDRDaemonDataReadQueue::push: queue is full");
m_full = true; // stop filling the queue
SDRDaemonDataBlock *data = m_dataReadQueue.takeLast(); SDRDaemonDataBlock *data = m_dataReadQueue.takeLast();
delete data; delete data;
} }
if (m_full) {
m_full = (size() > MaxSize/2); // do not fill queue again before queue is half size
}
if (!m_full) {
m_dataReadQueue.append(dataBlock); m_dataReadQueue.append(dataBlock);
}
} }
SDRDaemonDataBlock* SDRDaemonDataReadQueue::pop() SDRDaemonDataBlock* SDRDaemonDataReadQueue::pop()
@ -76,7 +84,7 @@ uint32_t SDRDaemonDataReadQueue::size()
void SDRDaemonDataReadQueue::readSample(Sample& s) void SDRDaemonDataReadQueue::readSample(Sample& s)
{ {
// initial state // depletion/repletion state
if (m_dataBlock == 0) if (m_dataBlock == 0)
{ {
if (size() >= MaxSize/2) if (size() >= MaxSize/2)

1
sdrdaemon/channel/sdrdaemondatareadqueue.h
View File

@ -46,6 +46,7 @@ private:
SDRDaemonDataBlock *m_dataBlock; SDRDaemonDataBlock *m_dataBlock;
uint32_t m_blockIndex; uint32_t m_blockIndex;
uint32_t m_sampleIndex; uint32_t m_sampleIndex;
bool m_full; //!< full condition was hit
}; };