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Implemented strict locking of global lists

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This commit is contained in:
Klaus Schmidinger
2015-09-01 11:14:27 +02:00
parent 8a7bc6a0bb
commit 3cd5294d8a
41 changed files with 3512 additions and 2402 deletions
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43
nit.c
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@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: nit.c 4.2 2015/03/17 15:10:09 kls Exp $
* $Id: nit.c 4.3 2015/07/26 09:24:36 kls Exp $
*/
#include "nit.h"
@@ -61,10 +61,13 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
}
dbgnit("NIT: %02X %2d %2d %2d %s %d %d '%s'\n", Tid, nit.getVersionNumber(), nit.getSectionNumber(), nit.getLastSectionNumber(), *cSource::ToString(Source()), nit.getNetworkId(), Transponder(), NetworkName);
}
if (!Channels.Lock(true, 10)) {
cStateKey StateKey;
cChannels *Channels = cChannels::GetChannelsWrite(StateKey, 10);
if (!Channels) {
sectionSyncer.Repeat(); // let's not miss any section of the NIT
return;
}
bool ChannelsModified = false;
SI::NIT::TransportStream ts;
for (SI::Loop::Iterator it; nit.transportStreamLoop.getNext(ts, it); ) {
SI::Descriptor *d;
@@ -115,7 +118,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (Setup.UpdateChannels >= 5) {
bool found = false;
bool forceTransponderUpdate = false;
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
if (!Channel->GroupSep() && Channel->Source() == Source && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
int transponder = Channel->Transponder();
found = true;
@@ -128,7 +131,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
}
}
if (ISTRANSPONDER(cChannel::Transponder(Frequency, dtp.Polarization()), Transponder())) // only modify channels if we're actually receiving this transponder
Channel->SetTransponderData(Source, Frequency, SymbolRate, dtp.ToString('S'));
ChannelsModified |= Channel->SetTransponderData(Source, Frequency, SymbolRate, dtp.ToString('S'));
else if (Channel->Srate() != SymbolRate || strcmp(Channel->Parameters(), dtp.ToString('S')))
forceTransponderUpdate = true; // get us receiving this transponder
}
@@ -136,7 +139,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (!found || forceTransponderUpdate) {
for (int n = 0; n < NumFrequencies; n++) {
cChannel *Channel = new cChannel;
Channel->SetId(ts.getOriginalNetworkId(), ts.getTransportStreamId(), 0, 0);
Channel->SetId(NULL, ts.getOriginalNetworkId(), ts.getTransportStreamId(), 0, 0);
if (Channel->SetTransponderData(Source, Frequencies[n], SymbolRate, dtp.ToString('S')))
EITScanner.AddTransponder(Channel);
else
@@ -150,13 +153,13 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
break;
case SI::S2SatelliteDeliverySystemDescriptorTag: {
if (Setup.UpdateChannels >= 5) {
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
if (!Channel->GroupSep() && cSource::IsSat(Channel->Source()) && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
SI::S2SatelliteDeliverySystemDescriptor *sd = (SI::S2SatelliteDeliverySystemDescriptor *)d;
cDvbTransponderParameters dtp(Channel->Parameters());
dtp.SetSystem(DVB_SYSTEM_2);
dtp.SetStreamId(sd->getInputStreamIdentifier());
Channel->SetTransponderData(Channel->Source(), Channel->Frequency(), Channel->Srate(), dtp.ToString('S'));
ChannelsModified |= Channel->SetTransponderData(Channel->Source(), Channel->Frequency(), Channel->Srate(), dtp.ToString('S'));
break;
}
}
@@ -178,7 +181,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (Setup.UpdateChannels >= 5) {
bool found = false;
bool forceTransponderUpdate = false;
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
if (!Channel->GroupSep() && Channel->Source() == Source && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
int transponder = Channel->Transponder();
found = true;
@@ -191,7 +194,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
}
}
if (ISTRANSPONDER(Frequency / 1000, Transponder())) // only modify channels if we're actually receiving this transponder
Channel->SetTransponderData(Source, Frequency, SymbolRate, dtp.ToString('C'));
ChannelsModified |= Channel->SetTransponderData(Source, Frequency, SymbolRate, dtp.ToString('C'));
else if (Channel->Srate() != SymbolRate || strcmp(Channel->Parameters(), dtp.ToString('C')))
forceTransponderUpdate = true; // get us receiving this transponder
}
@@ -199,7 +202,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (!found || forceTransponderUpdate) {
for (int n = 0; n < NumFrequencies; n++) {
cChannel *Channel = new cChannel;
Channel->SetId(ts.getOriginalNetworkId(), ts.getTransportStreamId(), 0, 0);
Channel->SetId(NULL, ts.getOriginalNetworkId(), ts.getTransportStreamId(), 0, 0);
if (Channel->SetTransponderData(Source, Frequencies[n], SymbolRate, dtp.ToString('C')))
EITScanner.AddTransponder(Channel);
else
@@ -234,7 +237,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (Setup.UpdateChannels >= 5) {
bool found = false;
bool forceTransponderUpdate = false;
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
if (!Channel->GroupSep() && Channel->Source() == Source && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
int transponder = Channel->Transponder();
found = true;
@@ -247,7 +250,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
}
}
if (ISTRANSPONDER(Frequency / 1000000, Transponder())) // only modify channels if we're actually receiving this transponder
Channel->SetTransponderData(Source, Frequency, 0, dtp.ToString('T'));
ChannelsModified |= Channel->SetTransponderData(Source, Frequency, 0, dtp.ToString('T'));
else if (strcmp(Channel->Parameters(), dtp.ToString('T')))
forceTransponderUpdate = true; // get us receiving this transponder
}
@@ -255,7 +258,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
if (!found || forceTransponderUpdate) {
for (int n = 0; n < NumFrequencies; n++) {
cChannel *Channel = new cChannel;
Channel->SetId(ts.getOriginalNetworkId(), ts.getTransportStreamId(), 0, 0);
Channel->SetId(NULL, ts.getOriginalNetworkId(), ts.getTransportStreamId(), 0, 0);
if (Channel->SetTransponderData(Source, Frequencies[n], 0, dtp.ToString('T')))
EITScanner.AddTransponder(Channel);
else
@@ -272,7 +275,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
switch (sd->getExtensionDescriptorTag()) {
case SI::T2DeliverySystemDescriptorTag: {
if (Setup.UpdateChannels >= 5) {
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
int Source = cSource::FromData(cSource::stTerr);
if (!Channel->GroupSep() && Channel->Source() == Source && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
SI::T2DeliverySystemDescriptor *td = (SI::T2DeliverySystemDescriptor *)d;
@@ -292,7 +295,7 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
dtp.SetTransmission(T2TransmissionModes[td->getTransmissionMode()]);
//TODO add parsing of frequencies
}
Channel->SetTransponderData(Source, Frequency, SymbolRate, dtp.ToString('T'));
ChannelsModified |= Channel->SetTransponderData(Source, Frequency, SymbolRate, dtp.ToString('T'));
}
}
}
@@ -310,9 +313,9 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
int lcn = LogicalChannel.getLogicalChannelNumber();
int sid = LogicalChannel.getServiceId();
if (LogicalChannel.getVisibleServiceFlag()) {
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
if (!Channel->GroupSep() && Channel->Sid() == sid && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
Channel->SetLcn(lcn);
ChannelsModified |= Channel->SetLcn(lcn);
break;
}
}
@@ -328,9 +331,9 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
int lcn = HdSimulcastLogicalChannel.getLogicalChannelNumber();
int sid = HdSimulcastLogicalChannel.getServiceId();
if (HdSimulcastLogicalChannel.getVisibleServiceFlag()) {
for (cChannel *Channel = Channels.First(); Channel; Channel = Channels.Next(Channel)) {
for (cChannel *Channel = Channels->First(); Channel; Channel = Channels->Next(Channel)) {
if (!Channel->GroupSep() && Channel->Sid() == sid && Channel->Nid() == ts.getOriginalNetworkId() && Channel->Tid() == ts.getTransportStreamId()) {
Channel->SetLcn(lcn);
ChannelsModified |= Channel->SetLcn(lcn);
break;
}
}
@@ -343,5 +346,5 @@ void cNitFilter::Process(u_short Pid, u_char Tid, const u_char *Data, int Length
delete d;
}
}
Channels.Unlock();
StateKey.Remove(ChannelsModified);
}