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added mutex protection around pqistreamer::getRates, since float r/w are not necessarily atomic

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This commit is contained in:
csoler 2016-06-11 09:33:11 -04:00
parent eba90a83c6
commit 0d1d31a25f
3 changed files with 105 additions and 82 deletions
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2
libretroshare/src/pqi/pqi_base.h
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@ -164,7 +164,7 @@ virtual void setRateCap(float val_in, float val_out)
protected:
void setRate(bool in, float val)
virtual void setRate(bool in, float val)
{
if (in)
bw_in = val;

29
libretroshare/src/pqi/pqistreamer.cc
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@ -77,6 +77,13 @@ pqistreamer::pqistreamer(RsSerialiser *rss, const RsPeerId& id, BinInterface *bi
mCurrRead(0), mCurrSent(0),
mAvgReadCount(0), mAvgSentCount(0)
{
// 100 B/s (minimal)
setMaxRate(true, 0.1);
setMaxRate(false, 0.1);
setRate(true, 0); // needs to be off-mutex
setRate(false, 0);
RsStackMutex stack(mStreamerMtx); /**** LOCKED MUTEX ****/
mAcceptsPacketSlicing = false ; // by default. Will be turned into true when everyone's ready.
@ -91,12 +98,6 @@ pqistreamer::pqistreamer(RsSerialiser *rss, const RsPeerId& id, BinInterface *bi
mPkt_rpending = 0;
mReading_state = reading_state_initial ;
// 100 B/s (minimal)
setMaxRate(true, 0.1);
setMaxRate(false, 0.1);
setRate(true, 0);
setRate(false, 0);
pqioutput(PQL_DEBUG_ALL, pqistreamerzone, "pqistreamer::pqistreamer() Initialisation!");
if (!bio_in)
@ -195,6 +196,22 @@ RsItem *pqistreamer::GetItem()
return osr;
}
float pqistreamer::getRate(bool b)
{
RsStackMutex stack(mStreamerMtx); /**** LOCKED MUTEX ****/
return RateInterface::getRate(b) ;
}
void pqistreamer::setMaxRate(bool b,float f)
{
RsStackMutex stack(mStreamerMtx); /**** LOCKED MUTEX ****/
RateInterface::setMaxRate(b,f) ;
}
void pqistreamer::setRate(bool b,float f)
{
RsStackMutex stack(mStreamerMtx); /**** LOCKED MUTEX ****/
RateInterface::setRate(b,f) ;
}
void pqistreamer::updateRates()
{
// now update rates both ways.

6
libretroshare/src/pqi/pqistreamer.h
View file

@ -67,6 +67,12 @@ class pqistreamer: public PQInterface
virtual void getRates(RsBwRates &rates);
virtual int getQueueSize(bool in); // extracting data.
virtual int gatherStatistics(std::list<RSTrafficClue>& outqueue_stats,std::list<RSTrafficClue>& inqueue_stats); // extracting data.
// mutex protected versions of RateInterface calls.
virtual void setRate(bool b,float f) ;
virtual void setMaxRate(bool b,float f) ;
virtual float getRate(bool b) ;
protected:
int tick_bio();