#include <StreamerInputSource.h>

Inheritance diagram for edm::StreamerInputSource:

Classes
class	EventPrincipalHolder

Public Member Functions
void	deserializeAndMergeWithRegistry (InitMsgView const &initView, bool subsequent=false)

void	deserializeEvent (EventMsgView const &eventView)

std::auto_ptr< SendJobHeader >	deserializeRegistry (InitMsgView const &initView)

	StreamerInputSource (ParameterSet const &pset, InputSourceDescription const &desc)

virtual	~StreamerInputSource ()

Public Member Functions inherited from edm::RawInputSource
	RawInputSource (ParameterSet const &pset, InputSourceDescription const &desc)

virtual	~RawInputSource ()

Public Member Functions inherited from edm::InputSource
boost::shared_ptr < ActivityRegistry >	actReg () const
	Accessor for Activity Registry. More...

boost::shared_ptr < BranchIDListHelper >	branchIDListHelper () const
	Accessor for branchIDListHelper. More...

void	closeFile (FileBlock *, bool cleaningUpAfterException)
	close current file More...

void	doBeginJob ()
	Called by framework at beginning of job. More...

void	doBeginLumi (LuminosityBlockPrincipal &lbp, ProcessContext const *)
	Called by framework at beginning of lumi block. More...

void	doBeginRun (RunPrincipal &rp, ProcessContext const *)
	Called by framework at beginning of run. More...

void	doEndJob ()
	Called by framework at end of job. More...

void	doEndLumi (LuminosityBlockPrincipal &lbp, bool cleaningUpAfterException, ProcessContext const *)
	Called by framework at end of lumi block. More...

void	doEndRun (RunPrincipal &rp, bool cleaningUpAfterException, ProcessContext const *)
	Called by framework at end of run. More...

void	doPostForkReacquireResources (boost::shared_ptr< multicore::MessageReceiverForSource >)

void	doPreForkReleaseResources ()
	Called by the framework before forking the process. More...

ProcessingController::ForwardState	forwardState () const

bool	goToEvent (EventID const &eventID)

	InputSource (ParameterSet const &, InputSourceDescription const &)
	Constructor. More...

	InputSource (InputSource const &)=delete

void	issueReports (EventID const &eventID)
	issue an event report More...

LuminosityBlockNumber_t	luminosityBlock () const
	Accessor for current luminosity block number. More...

boost::shared_ptr < LuminosityBlockAuxiliary >	luminosityBlockAuxiliary () const
	Called by the framework to merge or insert lumi in principal cache. More...

int	maxEvents () const

int	maxLuminosityBlocks () const

ModuleDescription const &	moduleDescription () const
	Accessor for 'module' description. More...

ItemType	nextItemType ()
	Advances the source to the next item. More...

InputSource &	operator= (InputSource const &)=delete

bool	primary () const
	Accessor for primary input source flag. More...

ProcessConfiguration const &	processConfiguration () const
	Accessor for Process Configuration. More...

std::string const &	processGUID () const
	Accessor for global process identifier. More...

ProcessHistoryRegistry const &	processHistoryRegistry () const
	Const accessor for process history registry. More...

ProcessHistoryRegistry &	processHistoryRegistryForUpdate ()
	Non-const accessor for process history registry. More...

ProcessingMode	processingMode () const
	RunsLumisAndEvents (default), RunsAndLumis, or Runs. More...

boost::shared_ptr < ProductRegistry const >	productRegistry () const
	Accessor for product registry. More...

bool	randomAccess () const

void	readAndMergeLumi (LuminosityBlockPrincipal &lbp)
	Read next luminosity block (same as a prior lumi) More...

void	readAndMergeRun (RunPrincipal &rp)
	Read next run (same as a prior run) More...

void	readEvent (EventPrincipal &ep, StreamContext &)
	Read next event. More...

bool	readEvent (EventPrincipal &ep, EventID const &, StreamContext &)
	Read a specific event. More...

std::unique_ptr< FileBlock >	readFile ()
	Read next file. More...

void	readLuminosityBlock (LuminosityBlockPrincipal &lumiPrincipal, HistoryAppender &historyAppender)
	Read next luminosity block (new lumi) More...

boost::shared_ptr < LuminosityBlockAuxiliary >	readLuminosityBlockAuxiliary ()
	Read next luminosity block Auxilary. More...

void	readRun (RunPrincipal &runPrincipal, HistoryAppender &historyAppender)
	Read next run (new run) More...

boost::shared_ptr< RunAuxiliary >	readRunAuxiliary ()
	Read next run Auxiliary. More...

ProcessHistoryID const &	reducedProcessHistoryID () const

void	registerProducts ()
	Register any produced products. More...

int	remainingEvents () const

int	remainingLuminosityBlocks () const

void	repeat ()
	Reset the remaining number of events/lumis to the maximum number. More...

ProcessingController::ReverseState	reverseState () const

void	rewind ()
	Begin again at the first event. More...

RunNumber_t	run () const
	Accessor for current run number. More...

boost::shared_ptr< RunAuxiliary >	runAuxiliary () const
	Called by the framework to merge or insert run in principal cache. More...

void	setLuminosityBlockNumber_t (LuminosityBlockNumber_t lb)
	Set the luminosity block ID. More...

void	setRunNumber (RunNumber_t r)
	Set the run number. More...

void	skipEvents (int offset)

bool	skipForForking ()

Timestamp const &	timestamp () const
	Accessor for the current time, as seen by the input source. More...

virtual	~InputSource ()
	Destructor. More...

Static Public Member Functions
static void	fillDescription (ParameterSetDescription &description)

static void	mergeIntoRegistry (SendJobHeader const &header, ProductRegistry &, BranchIDListHelper &, bool subsequent)

static unsigned int	uncompressBuffer (unsigned char *inputBuffer, unsigned int inputSize, std::vector< unsigned char > &outputBuffer, unsigned int expectedFullSize)

Static Public Member Functions inherited from edm::RawInputSource
static void	fillDescription (ParameterSetDescription &description)

Static Public Member Functions inherited from edm::InputSource
static const std::string &	baseType ()

static void	fillDescription (ParameterSetDescription &desc)

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &)

Protected Member Functions
void	resetAfterEndRun ()

Protected Member Functions inherited from edm::RawInputSource
virtual bool	checkNextEvent ()=0

void	makeEvent (EventPrincipal &eventPrincipal, EventAuxiliary const &eventAuxiliary)

void	setInputFileTransitionsEachEvent ()

Protected Member Functions inherited from edm::InputSource
void	decreaseRemainingEventsBy (int iSkipped)

bool	eventCached () const

boost::shared_ptr < LuminosityBlockPrincipal > const	luminosityBlockPrincipal () const

bool	newLumi () const

bool	newRun () const

ProcessHistoryRegistry &	processHistoryRegistryUpdate () const

ProductRegistry &	productRegistryUpdate () const

void	reset () const

void	resetEventCached ()

void	resetLuminosityBlockAuxiliary (bool isNewLumi=true) const

void	resetNewLumi ()

void	resetNewRun ()

void	resetRunAuxiliary (bool isNewRun=true) const

boost::shared_ptr < RunPrincipal > const	runPrincipal () const

void	setEventCached ()
	Called by the framework to merge or ached() const {return eventCached_;}. More...

void	setLuminosityBlockAuxiliary (LuminosityBlockAuxiliary *lbp)

void	setNewLumi ()

void	setNewRun ()

void	setRunAuxiliary (RunAuxiliary *rp)

void	setTimestamp (Timestamp const &theTime)
	To set the current time, as seen by the input source. More...

virtual void	skip (int offset)

ItemType	state () const

Static Protected Member Functions
static void	buildClassCache (SendDescs const &descs)

static void	declareStreamers (SendDescs const &descs)

Private Member Functions
virtual void	read (EventPrincipal &eventPrincipal)

virtual std::unique_ptr < FileBlock >	readFile_ ()

virtual void	setRun (RunNumber_t r)

Private Attributes
bool	adjustEventToNewProductRegistry_

std::vector< unsigned char >	dest_

EventPrincipalHolder	eventPrincipalHolder_

std::string	processName_

unsigned int	protocolVersion_

std::unique_ptr< SendEvent >	sendEvent_

TClass *	tc_

TBufferFile	xbuf_

Additional Inherited Members
Public Types inherited from edm::InputSource
enum	ItemType { IsInvalid, IsStop, IsFile, IsRun, IsLumi, IsEvent, IsRepeat, IsSynchronize }

enum	ProcessingMode { Runs, RunsAndLumis, RunsLumisAndEvents }

typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Detailed Description

Definition at line 29 of file StreamerInputSource.h.

Constructor & Destructor Documentation

edm::StreamerInputSource::StreamerInputSource	(	ParameterSet const &	pset,
		InputSourceDescription const &	desc
	)

explicit

Definition at line 42 of file StreamerInputSource.cc.

                                                        :
     RawInputSource(pset, desc),
     tc_(getTClass(typeid(SendEvent))),
     dest_(init_size),
     xbuf_(TBuffer::kRead, init_size),
     sendEvent_(),
     eventPrincipalHolder_(),
     adjustEventToNewProductRegistry_(false),
     processName_(),
     protocolVersion_(0U) {
   }

edm::StreamerInputSource::~StreamerInputSource ( )

virtual

Definition at line 56 of file StreamerInputSource.cc.

56 {}

Member Function Documentation

void edm::StreamerInputSource::buildClassCache ( SendDescs const & descs )

staticprotected

Definition at line 102 of file StreamerInputSource.cc.

References edm::doBuildRealData(), FDEBUG, AlCaHLTBitMon_QueryRunRegistry::string, and edm::wrappedClassName().

Referenced by mergeIntoRegistry().

                                                              {
     for(auto const& item : descs) {
         //pi->init();
         std::string const real_name = wrappedClassName(item.className());
         FDEBUG(6) << "BuildReadData: " << real_name << std::endl;
         doBuildRealData(real_name);
     }
   }

void edm::StreamerInputSource::declareStreamers ( SendDescs const & descs )

staticprotected

Definition at line 91 of file StreamerInputSource.cc.

References FDEBUG, edm::loadCap(), AlCaHLTBitMon_QueryRunRegistry::string, and edm::wrappedClassName().

Referenced by mergeIntoRegistry().

                                                               {
     for(auto const& item : descs) {
         //pi->init();
         std::string const real_name = wrappedClassName(item.className());
         FDEBUG(6) << "declare: " << real_name << std::endl;
         loadCap(real_name);
     }
   }

void edm::StreamerInputSource::deserializeAndMergeWithRegistry	(	InitMsgView const &	initView,
		bool	subsequent = `false`
	)

Deserializes the specified init message into a SendJobHeader object and merges registries.

Definition at line 165 of file StreamerInputSource.cc.

References adjustEventToNewProductRegistry_, edm::InputSource::branchIDListHelper(), deserializeRegistry(), edm::pset::Registry::insertMapped(), edm::pset::Registry::instance(), mergeIntoRegistry(), edm::InputSource::productRegistryUpdate(), sd, and edm::ParameterSet::setID().

Referenced by edm::StreamerFileReader::checkNextEvent(), edm::StreamerFileReader::reset_(), and edm::StreamerInputModule< Producer >::StreamerInputModule().

                                                                                                    {
      std::auto_ptr<SendJobHeader> sd = deserializeRegistry(initView);
      mergeIntoRegistry(*sd, productRegistryUpdate(), *branchIDListHelper(), subsequent);
      if (subsequent) {
        adjustEventToNewProductRegistry_ = true;
      }
      SendJobHeader::ParameterSetMap const& psetMap = sd->processParameterSet();
      pset::Registry& psetRegistry = *pset::Registry::instance();
      for (auto const& item : psetMap) {
        ParameterSet pset(item.second.pset());
        pset.setID(item.first);
        psetRegistry.insertMapped(pset);
      }
   }

void edm::StreamerInputSource::deserializeEvent ( EventMsgView const & eventView )

Deserializes the specified event message.

Definition at line 184 of file StreamerInputSource.cc.

Referenced by edm::StreamerFileReader::checkNextEvent().

                                                                      {
     if(eventView.code() != Header::EVENT)
       throw cms::Exception("StreamTranslation","Event deserialization error")
         << "received wrong message type: expected EVENT, got "
         << eventView.code() << "\n";
     FDEBUG(9) << "Decode event: "
          << eventView.event() << " "
          << eventView.run() << " "
          << eventView.size() << " "
          << eventView.adler32_chksum() << " "
          << eventView.eventLength() << " "
          << eventView.eventData()
          << std::endl;
     // uncompress if we need to
     // 78 was a dummy value (for no uncompressed) - should be 0 for uncompressed
     // need to get rid of this when 090 MTCC streamers are gotten rid of
     unsigned long origsize = eventView.origDataSize();
     unsigned long dest_size; //(should be >= eventView.origDataSize())
 
     uint32_t adler32_chksum = cms::Adler32((char const*)eventView.eventData(), eventView.eventLength());
     //std::cout << "Adler32 checksum of event = " << adler32_chksum << std::endl;
     //std::cout << "Adler32 checksum from header = " << eventView.adler32_chksum() << " "
     //          << "host name = " << eventView.hostName() << " len = " << eventView.hostName_len() << std::endl;
     if((uint32)adler32_chksum != eventView.adler32_chksum()) {
       std::cerr << "Error from StreamerInputSource: checksum of event data blob failed "
                 << " chksum from event = " << adler32_chksum << " from header = "
                 << eventView.adler32_chksum() << " host name = " << eventView.hostName() << std::endl;
       // skip event (based on option?) or throw exception?
     }
     if(origsize != 78 && origsize != 0) {
       // compressed
       dest_size = uncompressBuffer(const_cast<unsigned char*>((unsigned char const*)eventView.eventData()),
                                    eventView.eventLength(), dest_, origsize);
     } else { // not compressed
       // we need to copy anyway the buffer as we are using dest in xbuf
       dest_size = eventView.eventLength();
       dest_.resize(dest_size);
       unsigned char* pos = (unsigned char*) &dest_[0];
       unsigned char const* from = (unsigned char const*) eventView.eventData();
       std::copy(from,from+dest_size,pos);
     }
     //TBuffer xbuf(TBuffer::kRead, dest_size,
     //             (char const*) &dest[0],kFALSE);
     //TBuffer xbuf(TBuffer::kRead, eventView.eventLength(),
     //             (char const*) eventView.eventData(),kFALSE);
     xbuf_.Reset();
     xbuf_.SetBuffer(&dest_[0],dest_size,kFALSE);
     RootDebug tracer(10,10);
 
     setRefCoreStreamer(&eventPrincipalHolder_);
     sendEvent_ = std::unique_ptr<SendEvent>((SendEvent*)xbuf_.ReadObjectAny(tc_));
     setRefCoreStreamer();
 
     if(sendEvent_.get() == nullptr) {
         throw cms::Exception("StreamTranslation","Event deserialization error")
           << "got a null event from input stream\n";
     }
     processHistoryRegistryUpdate().registerProcessHistory(sendEvent_->processHistory());
 
     FDEBUG(5) << "Got event: " << sendEvent_->aux().id() << " " << sendEvent_->products().size() << std::endl;
     if(runAuxiliary().get() == nullptr || runAuxiliary()->run() != sendEvent_->aux().run()) {
       RunAuxiliary* runAuxiliary = new RunAuxiliary(sendEvent_->aux().run(), sendEvent_->aux().time(), Timestamp::invalidTimestamp());
       runAuxiliary->setProcessHistoryID(sendEvent_->processHistory().id());
       setRunAuxiliary(runAuxiliary);
       resetLuminosityBlockAuxiliary();
     }
     if(!luminosityBlockAuxiliary() || luminosityBlockAuxiliary()->luminosityBlock() != eventView.lumi()) {
       LuminosityBlockAuxiliary* luminosityBlockAuxiliary =
         new LuminosityBlockAuxiliary(runAuxiliary()->run(), eventView.lumi(), sendEvent_->aux().time(), Timestamp::invalidTimestamp());
       luminosityBlockAuxiliary->setProcessHistoryID(sendEvent_->processHistory().id());
       setLuminosityBlockAuxiliary(luminosityBlockAuxiliary);
     }
     setEventCached();
   }

std::auto_ptr< SendJobHeader > edm::StreamerInputSource::deserializeRegistry ( InitMsgView const & initView )

Deserializes the specified init message into a SendJobHeader object (which is related to the product registry).

Definition at line 116 of file StreamerInputSource.cc.

References cms::Adler32(), InitMsgView::adler32_chksum(), dtNoiseDBValidation_cfg::cerr, InitMsgView::code(), InitMsgView::descData(), InitMsgView::descLength(), edm::hlt::Exception, FDEBUG, edm::getTClass(), InitMsgView::hostName(), Header::INIT, InitMsgView::processName(), processName_, InitMsgView::protocolVersion(), protocolVersion_, and sd.

Referenced by deserializeAndMergeWithRegistry().

                                                                       {
     if(initView.code() != Header::INIT)
       throw cms::Exception("StreamTranslation","Registry deserialization error")
         << "received wrong message type: expected INIT, got "
         << initView.code() << "\n";
 
     //Get the process name and store if for Protocol version 4 and above.
     if (initView.protocolVersion() > 3) {
 
          processName_ = initView.processName();
          protocolVersion_ = initView.protocolVersion();
 
          FDEBUG(10) << "StreamerInputSource::deserializeRegistry processName = "<< processName_<< std::endl;
          FDEBUG(10) << "StreamerInputSource::deserializeRegistry protocolVersion_= "<< protocolVersion_<< std::endl;
     }
 
    // calculate the adler32 checksum
    uint32_t adler32_chksum = cms::Adler32((char const*)initView.descData(),initView.descLength());
    //std::cout << "Adler32 checksum of init message = " << adler32_chksum << std::endl;
    //std::cout << "Adler32 checksum of init messsage from header = " << initView.adler32_chksum() << " "
    //          << "host name = " << initView.hostName() << " len = " << initView.hostName_len() << std::endl;
     if((uint32)adler32_chksum != initView.adler32_chksum()) {
       std::cerr << "Error from StreamerInputSource: checksum of Init registry blob failed "
                 << " chksum from registry data = " << adler32_chksum << " from header = "
                 << initView.adler32_chksum() << " host name = " << initView.hostName() << std::endl;
       // skip event (based on option?) or throw exception?
     }
 
     TClass* desc = getTClass(typeid(SendJobHeader));
 
     TBufferFile xbuf(TBuffer::kRead, initView.descLength(),
                  const_cast<char*>((char const*)initView.descData()),kFALSE);
     RootDebug tracer(10,10);
     std::auto_ptr<SendJobHeader> sd((SendJobHeader*)xbuf.ReadObjectAny(desc));
 
     if(sd.get() == nullptr) {
         throw cms::Exception("StreamTranslation","Registry deserialization error")
           << "Could not read the initial product registry list\n";
     }
 
     sd->initializeTransients();
     return sd;
   }

void edm::StreamerInputSource::fillDescription ( ParameterSetDescription & description )

static

Definition at line 388 of file StreamerInputSource.cc.

References edm::RawInputSource::fillDescription().

Referenced by edm::StreamerFileReader::fillDescriptions().

                                                                     {
     RawInputSource::fillDescription(desc);
   }

void edm::StreamerInputSource::mergeIntoRegistry	(	SendJobHeader const &	header,
		ProductRegistry &	reg,
		BranchIDListHelper &	branchIDListHelper,
		bool	subsequent
	)

static

Definition at line 65 of file StreamerInputSource.cc.

References edm::SendJobHeader::branchIDLists(), buildClassCache(), declareStreamers(), edm::SendJobHeader::descs(), edm::hlt::Exception, FDEBUG, edm::ProductRegistry::frozen(), edm::loadExtraClasses(), edm::ProductRegistry::merge(), edm::BranchDescription::Permissive, AlCaHLTBitMon_QueryRunRegistry::string, edm::BranchIDListHelper::updateFromInput(), and edm::ProductRegistry::updateFromInput().

Referenced by deserializeAndMergeWithRegistry().

                                                                                                                                                    {
 
     SendDescs const& descs = header.descs();
 
     FDEBUG(6) << "mergeIntoRegistry: Product List: " << std::endl;
 
     if (subsequent) {
       ProductRegistry pReg;
       pReg.updateFromInput(descs);
       std::string mergeInfo = reg.merge(pReg, std::string(), BranchDescription::Permissive);
       if (!mergeInfo.empty()) {
         throw cms::Exception("MismatchedInput","RootInputFileSequence::previousEvent()") << mergeInfo;
       }
       branchIDListHelper.updateFromInput(header.branchIDLists());
     } else {
       declareStreamers(descs);
       buildClassCache(descs);
       loadExtraClasses();
       if(!reg.frozen()) {
         reg.updateFromInput(descs);
       }
       branchIDListHelper.updateFromInput(header.branchIDLists());
     }
   }

void edm::StreamerInputSource::read ( EventPrincipal & eventPrincipal )

privatevirtual

Implements edm::RawInputSource.

Definition at line 260 of file StreamerInputSource.cc.

References adjustEventToNewProductRegistry_, edm::Principal::adjustIndexesAfterProductRegistryAddition(), edm::Principal::adjustToNewProductRegistry(), edm::InputSource::branchIDListHelper(), eventPrincipalHolder_, FDEBUG, edm::EventPrincipal::fillEventPrincipal(), edm::InputSource::processHistoryRegistry(), edm::InputSource::productRegistry(), edm::EventPrincipal::putOnRead(), sendEvent_, edm::StreamerInputSource::EventPrincipalHolder::setEventPrincipal(), and edm::Principal::size().

                                                           {
     if(adjustEventToNewProductRegistry_) {
       eventPrincipal.adjustIndexesAfterProductRegistryAddition();
       bool eventOK = eventPrincipal.adjustToNewProductRegistry(*productRegistry());
       assert(eventOK);
       adjustEventToNewProductRegistry_ = false;
     }
     EventSelectionIDVector ids(sendEvent_->eventSelectionIDs());
     BranchListIndexes indexes(sendEvent_->branchListIndexes());
     branchIDListHelper()->fixBranchListIndexes(indexes);
     eventPrincipal.fillEventPrincipal(sendEvent_->aux(), processHistoryRegistry(), std::move(ids), std::move(indexes));
     eventPrincipalHolder_.setEventPrincipal(&eventPrincipal);
 
     // no process name list handling
 
     SendProds& sps = sendEvent_->products();
     for(auto& spitem : sps) {
         FDEBUG(10) << "check prodpair" << std::endl;
         if(spitem.desc() == nullptr)
           throw cms::Exception("StreamTranslation","Empty Provenance");
         FDEBUG(5) << "Prov:"
              << " " << spitem.desc()->className()
              << " " << spitem.desc()->productInstanceName()
              << " " << spitem.desc()->branchID()
              << std::endl;
 
         BranchDescription const branchDesc(*spitem.desc());
         // This ProductProvenance constructor inserts into the entry description registry
         ProductProvenance productProvenance(spitem.branchID(), *spitem.parents());
 
         if(spitem.prod() != nullptr) {
           FDEBUG(10) << "addproduct next " << spitem.branchID() << std::endl;
           eventPrincipal.putOnRead(branchDesc, spitem.prod(), productProvenance);
           FDEBUG(10) << "addproduct done" << std::endl;
         } else {
           FDEBUG(10) << "addproduct empty next " << spitem.branchID() << std::endl;
           eventPrincipal.putOnRead(branchDesc, spitem.prod(), productProvenance);
           FDEBUG(10) << "addproduct empty done" << std::endl;
         }
         spitem.clear();
     }
 
     FDEBUG(10) << "Size = " << eventPrincipal.size() << std::endl;
   }

std::unique_ptr< FileBlock > edm::StreamerInputSource::readFile_ ( )

privatevirtual

Reimplemented from edm::InputSource.

Definition at line 60 of file StreamerInputSource.cc.

                                  {
     return std::unique_ptr<FileBlock>(new FileBlock);
   }

void edm::StreamerInputSource::resetAfterEndRun ( )

protected

Definition at line 349 of file StreamerInputSource.cc.

References edm::InputSource::eventCached(), edm::InputSource::reset(), edm::InputSource::resetLuminosityBlockAuxiliary(), and edm::InputSource::resetRunAuxiliary().

                                              {
      // called from an online streamer source to reset after a stop command
      // so an enable command will work
      resetLuminosityBlockAuxiliary();
      resetRunAuxiliary();
      assert(!eventCached());
      reset();
   }

void edm::StreamerInputSource::setRun ( RunNumber_t r )

privatevirtual

Reimplemented from edm::InputSource.

Definition at line 358 of file StreamerInputSource.cc.

References edm::hlt::Exception, and edm::errors::LogicError.

                                               {
      // Need to define a dummy setRun here or else the InputSource::setRun is called
      // if we have a source inheriting from this and wants to define a setRun method
      throw Exception(errors::LogicError)
      << "StreamerInputSource::setRun()\n"
      << "Run number cannot be modified for this type of Input Source\n"
      << "Contact a Storage Manager Developer\n";
   }

unsigned int edm::StreamerInputSource::uncompressBuffer	(	unsigned char *	inputBuffer,
		unsigned int	inputSize,
		std::vector< unsigned char > &	outputBuffer,
		unsigned int	expectedFullSize
	)

static

Uncompresses the data in the specified input buffer into the specified output buffer. The inputSize should be set to the size of the compressed data in the inputBuffer. The expectedFullSize should be set to the original size of the data (before compression). Returns the actual size of the uncompressed data. Errors are reported by throwing exceptions.

Definition at line 314 of file StreamerInputSource.cc.

References dtNoiseDBValidation_cfg::cerr, edm::hlt::Exception, FDEBUG, and run_regression::ret.

Referenced by edm::StreamDQMDeserializer::deserializeDQMEvent(), and deserializeEvent().

                                                                        {
     unsigned long origSize = expectedFullSize;
     unsigned long uncompressedSize = expectedFullSize*1.1;
     FDEBUG(1) << "Uncompress: original size = " << origSize
               << ", compressed size = " << inputSize
               << std::endl;
     outputBuffer.resize(uncompressedSize);
     int ret = uncompress(&outputBuffer[0], &uncompressedSize,
                          inputBuffer, inputSize); // do not need compression level
     //std::cout << "unCompress Return value: " << ret << " Okay = " << Z_OK << std::endl;
     if(ret == Z_OK) {
         // check the length against original uncompressed length
         FDEBUG(10) << " original size = " << origSize << " final size = "
                    << uncompressedSize << std::endl;
         if(origSize != uncompressedSize) {
             std::cerr << "deserializeEvent: Problem with uncompress, original size = "
                  << origSize << " uncompress size = " << uncompressedSize << std::endl;
             // we throw an error and return without event! null pointer
             throw cms::Exception("StreamDeserialization","Uncompression error")
               << "mismatch event lengths should be" << origSize << " got "
               << uncompressedSize << "\n";
         }
     } else {
         // we throw an error and return without event! null pointer
         std::cerr << "deserializeEvent: Problem with uncompress, return value = "
              << ret << std::endl;
         throw cms::Exception("StreamDeserialization","Uncompression error")
             << "Error code = " << ret << "\n ";
     }
     return (unsigned int) uncompressedSize;
   }