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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
------------------
Branch: ni/coolstream
Commit: cdb0e0ef21
Author: [CST] Focus <focus.cst@gmail.com>
Date: 2013-08-12 (Mon, 12 Aug 2013)



------------------
This commit was generated by Migit
This commit is contained in:
[CST] Focus
2013-08-12 16:05:20 +04:00
parent 42b7cd25f5
commit 715e241852
3 changed files with 27 additions and 14 deletions
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4
src/driver/record.cpp
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@@ -1621,6 +1621,8 @@ bool CRecordManager::CutBackNeutrino(const t_channel_id channel_id, CFrontend *
if(live_channel_id != channel_id) {
/* first try to get frontend for record with locked live */
bool unlock = true;
/* executed in neutrino thread - possible race with zap NOWAIT and epg scan zap */
CFEManager::getInstance()->Lock();
CFEManager::getInstance()->lockFrontend(live_fe);
frontend = CFEManager::getInstance()->allocateFE(channel, true);
if (frontend == NULL) {
@@ -1629,6 +1631,8 @@ bool CRecordManager::CutBackNeutrino(const t_channel_id channel_id, CFrontend *
CFEManager::getInstance()->unlockFrontend(live_fe);
frontend = CFEManager::getInstance()->allocateFE(channel, true);
}
CFEManager::getInstance()->Unlock();
if (frontend == NULL)
return false;