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driver/record.cpp, driver/scanepg.cpp, zapit/src/zapit.cpp: try to prevent race

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while lock/allocate frontend in case of possible concurrent usage in neutrino and zapit threads


Origin commit data
------------------
Commit: cdb0e0ef21
Author: [CST] Focus <focus.cst@gmail.com>
Date: 2013-08-12 (Mon, 12 Aug 2013)
This commit is contained in:
[CST] Focus
2013-08-12 16:05:20 +04:00
parent da986056b6
commit 913afc0293
3 changed files with 27 additions and 14 deletions
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6
src/driver/scanepg.cpp
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@@ -129,10 +129,11 @@ void CEpgScan::Next()
t_channel_id live_channel_id = CZapit::getInstance()->GetCurrentChannelID();
CFrontend *live_fe = CZapit::getInstance()->GetLiveFrontend();
/* executed in neutrino thread - possible race with locks in zapit zap NOWAIT :
send zaTo_NOWAIT -> EIT_COMPLETE from sectionsd -> zap and this at the same time
send zapTo_NOWAIT -> EIT_COMPLETE from sectionsd -> zap and this at the same time
*/
CFEManager::getInstance()->Lock();
CFrontend *live_fe = CZapit::getInstance()->GetLiveFrontend();
CFEManager::getInstance()->lockFrontend(live_fe);
#ifdef ENABLE_PIP
CFrontend *pip_fe = CZapit::getInstance()->GetPipFrontend();
@@ -158,6 +159,7 @@ void CEpgScan::Next()
if (pip_fe && pip_fe != live_fe)
CFEManager::getInstance()->unlockFrontend(pip_fe);
#endif
CFEManager::getInstance()->Unlock();
if (next_chid)
g_Zapit->zapTo_epg(next_chid);
}