set_next_header()

void datrw::ihpmostream::set_next_header ( )

private

set header for next request

Definition at line 172 of file ihpmostream.cc.

References Mdatafile, Mindex, Mnblocks, Mnextblock, Mnextchannel, datrw::hpmo::MinuteBlock::Mtime, datrw::hpmo::nchannels, datrw::idatstream::newtrace(), datrw::hpmo::nsamples, datrw::hpmo::qualityreports(), datrw::hpmo::sampling_interval, datrw::idatstream::setlast(), datrw::idatstream::settracefree(), datrw::idatstream::setwid2(), and datrw::hpmo::toffset().

Referenced by dseries(), and skipseries().

  {
    const int firstblock=Mindex[Mnextblock];
    const int lastblock=Mindex[Mnextblock+1]-1;
    const int nblocks=lastblock-firstblock+1;
    const int nsamp=nblocks*datrw::hpmo::nsamples;
    // DEBUG
    // std::cout << firstblock << " " << lastblock << " "
    //   << Mnextblock << " " << Mnextchannel << std::endl;
    this->newtrace();
    // set WID2 header
    sff::WID2 wid2line;
    wid2line.station="BFO";
    wid2line.auxid="HPMO";
    wid2line.dt=datrw::hpmo::sampling_interval;
    std::ostringstream oss;
    oss << "K";
    oss.width(2); 
    oss.fill('0');
    oss << Mnextchannel;
    wid2line.channel=oss.str();
    wid2line.nsamples=nsamp;
    // calculate time of first sample for this channel
    wid2line.date=Mdatafile[firstblock].Mtime;
    wid2line.date -= libtime::TRelativeTime(0,0,0,57);
    wid2line.date += datrw::hpmo::toffset(Mnextchannel);
    this->setwid2(wid2line);
    // set FREE block of header
    oss.str("");
    oss << "channel " << Mnextchannel << " extracted from "
      << lastblock-firstblock+1 << " contiguous minute blocks";
    sff::FREE tracefree;
    tracefree.append(oss.str());
    tracefree.append(qualityreports(&Mdatafile[firstblock],
                                    lastblock-firstblock+1));
    this->settracefree(tracefree);
    // proceed pointers to next trace
    ++Mnextchannel;
    if (Mnextchannel > datrw::hpmo::nchannels)
    {
      Mnextchannel=1;
      ++Mnextblock;
      if (Mnextblock >= Mnblocks)
      {
        this->setlast();
      }
    }
  } // void ihpmostream::set_next_header()

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