inline_qio_write_erase_obj.cc

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/*! \file
 * \brief Inline task to write and delete an object from a named buffer
 *
 * Named object writing
 */
 
#include "meas/inline/abs_inline_measurement_factory.h"
#include "meas/inline/io/inline_qio_write_erase_obj.h"
#include "meas/inline/io/named_objmap.h"
 
namespace Chroma 
{ 
  namespace InlineQIOWriteEraseNamedObjEnv 
  { 
    namespace
    {
      AbsInlineMeasurement* createMeasurement(XMLReader& xml_in, 
                                              const std::string& path) 
      {
        return new InlineMeas(InlineQIOWriteNamedObjEnv::Params(xml_in, path));
      }
 
      //! Local registration flag
      bool registered = false;
 
      const std::string name = "QIO_WRITE_ERASE_NAMED_OBJECT";
    }
 
    //! Register all the factories
    bool registerAll() 
    {
      bool success = true; 
      if (! registered)
      {
        // Inline measurement
        success &= TheInlineMeasurementFactory::Instance().registerObject(name, createMeasurement);
 
        registered = true;
      }
      return success;
    }
 
 
    // Func
    void 
    InlineMeas::operator()(unsigned long update_no,
                           XMLWriter& xml_out) 
    {
      START_CODE();
 
      push(xml_out, "qio_write_erase_named_obj");
      write(xml_out, "update_no", update_no);
 
      QDPIO::cout << name << ": object writer" << std::endl;
      StopWatch swatch;
 
      // Write and erase the object
      // ONLY SciDAC output format is supported in this task
      // Other tasks could support other disk formats
      QDPIO::cout << "Attempt to write then delete an object name = " << params.named_obj.object_id << std::endl;
      write(xml_out, "object_id", params.named_obj.object_id);
      try
      {
        swatch.reset();
 
        // Use the qio writer
        InlineQIOWriteNamedObjEnv::InlineMeas qio_write(params);
 
        // Write the object
        qio_write(update_no, xml_out);
 
        // Now erase the object
        TheNamedObjMap::Instance().erase(params.named_obj.object_id);
 
        QDPIO::cout << "Object erased" << std::endl;
      }
      catch( std::bad_cast ) 
      {
        QDPIO::cerr << name << ": cast error" 
                    << std::endl;
        QDP_abort(1);
      }
      catch (const std::string& e) 
      {
        QDPIO::cerr << name << ": error message: " << e 
                    << std::endl;
        QDP_abort(1);
      }
    
      QDPIO::cout << name << ": ran successfully" << std::endl;
 
      pop(xml_out);  // qio_write_erase_named_obj
 
      END_CODE();
    } 
 
  }
 
}