GeneratorFileOrCmd.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef ALICEO2_EVENTGEN_GENERATORFILEORCMD_H_
#define ALICEO2_EVENTGEN_GENERATORFILEORCMD_H_
#include <Generators/GeneratorFileOrCmdParam.h>
#include <list>
#include <string>
 
namespace o2
{
namespace conf
{
class SimConfig;
}
namespace eventgen
{
 
struct GeneratorFileOrCmd {
  void setup(const GeneratorFileOrCmdParam& param,
             const conf::SimConfig& config);
  // Configure with local parameters
  void setup(const FileOrCmdGenConfig& param,
             const conf::SimConfig& config);
  void setCmd(const std::string& cmd) { mCmd = cmd; }
  void setCmdPid(const pid_t cmdPid) { mCmdPid = cmdPid; }
  void setNEvents(unsigned int nev) { mNEvents = nev; }
  void setSeed(unsigned long seed) { mSeed = seed; }
  void setBmax(float bmax) { mBmax = bmax; }
  void setFileNames(const std::string& filenames);
  void setOutputSwitch(const std::string& opt) { mOutputSwitch = opt; }
  void setSeedSwitch(const std::string& opt) { mSeedSwitch = opt; }
  void setNEventsSwitch(const std::string& opt) { mNEventsSwitch = opt; }
  void setBmaxSwitch(const std::string& opt) { mBmaxSwitch = opt; }
  void setBackgroundSwitch(const std::string& opt) { mBackgroundSwitch = opt; }
  void setWait(int miliseconds = 500) { mWait = miliseconds; }
 
 protected:
  virtual std::string makeCmdLine() const;
  virtual bool executeCmdLine(const std::string& cmd);
  virtual bool terminateCmd(unsigned int graceMillis = 0);
  static constexpr unsigned int sStopGraceMillis = 5000;
  virtual bool makeTemp(const bool&);
  virtual bool removeTemp() const;
  virtual bool makeFifo() const;
  virtual bool ensureFiles();
  virtual void waitForData(const std::string& filename) const;
  std::string mCmd = "";
  std::list<std::string> mFileNames;
  std::string mTemporary;
  unsigned int mNEvents = 0;
  unsigned long mSeed = 0;
  float mBmax = -1.f;
  std::string mOutputSwitch = ">";
  std::string mSeedSwitch = "-s";
  std::string mNEventsSwitch = "-n";
  std::string mBmaxSwitch = "-b";
  std::string mBackgroundSwitch = "&";
  int mWait = 500;
  int mCmdPid = -1;
};
 
} // namespace eventgen
} // namespace o2
#endif
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