gmLuaTask.h

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/************************************************************************
**
** Copyright (C) 2014 by Carlos Augusto Teixera Mendes
** All rights reserved.
**
** This file is part of the "GeMA" software. It's use should respect
** the terms in the license agreement that can be found together
** with this source code.
** It is provided AS IS, with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE.
**
************************************************************************/

#ifndef _GEMALUA_TASK_H_
#define _GEMALUA_TASK_H_

#include "gmLuaEnv.h"
#include <gmTaskManager.h>

struct lua_State;

class GML_API_EXPORT GmLuaTask : public GmThreadTask
{
public:
  GmLuaTask(const QString& fname, const QVariant& taskPars,
            const QVariantList& extraPars, const GmLogCategory& logger);

  virtual GmThreadTaskResult run(const GmThread* thread);

private:
  const QString&       _fname;     
  const QVariant&      _taskPars;  
  const QVariantList&  _extraPars; 
  const GmLogCategory& _logger;    
};

class GML_API_EXPORT GmLuaNodeTask
{
public:
  GmLuaNodeTask(const QString& fname, const QVariantList& extraPars, const GmLogCategory& logger);

  GmThreadTaskResult operator()(GmNodeTaskDataSet* dataSet, const GmThread* thread);

private:
  static int iteratorClosure (lua_State* L);
  static int iteratorFunction(lua_State* L);

  const QString&       _fname;     
  const QVariantList&  _extraPars; 
  const GmLogCategory& _logger;    
};

class GML_API_EXPORT GmLuaCellTask
{
public:
  GmLuaCellTask(const QString& fname, const QVariantList& extraPars, const GmLogCategory& logger);

  GmThreadTaskResult operator()(GmCellTaskDataSet* dataSet, const GmThread* thread);

private:
  static int iteratorClosure(lua_State* L);
  static int iteratorFunction(lua_State* L);

  const QString&       _fname;     
  const QVariantList&  _extraPars; 
  const GmLogCategory& _logger;    
};


namespace GmLuaTaskUtils
{
  bool pushParameter(LuaEnv* env, const QVariant& v);
  bool setInTable(LuaTable& t, const QVariant& index, const QVariant& v);

  GmThreadTaskResult callLuaTaskFunction(void* dataSet, const GmThread* thread, const QString& luaName,
                                         const QVariantList&  extraPars, const GmLogCategory& logger,
                                         bool loggerIsUpvalue, int (*iteratorClosure)(lua_State*), 
                                         const char* fname);

  // Template is decalred in the cpp and specialized for its 2 possible T types (Node and Cell Partition strategy)
  template <class T> void parseExecOptions(LuaEnv* env, int stackPos, T(*str2Strat)(QString), T defStrategy,
                                           const char* fname, int* ntasks, int* nworkers, T* strategy, 
                                           QVector<int>& taskAffinity);
}


#endif