/******************************** LICENSE ********************************

 Copyright 2007 European Centre for Medium-Range Weather Forecasts (ECMWF)

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at 

    http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

 ******************************** LICENSE ********************************/

#ifndef marsmachine_H
#define marsmachine_H

// All machine dependant stuff should go here

#ifdef __xlC__
#include "aix.h"
#endif

#ifdef __GNUG__
#include "linux.h"
#endif

#ifdef __sgi
#include "sgi.h"
#endif

#ifdef __hpux
#include "hpux.h"
#endif


// Usefull macros

#ifndef NUMBER
#define NUMBER(x) (sizeof(x)/sizeof(x[0]))
#endif

template<class T>
inline void zero(T& p) { ::memset(&p,0,sizeof(T)); }

class Bless {
public:	

	bool          operator() (bool*  a)          { return *a; }
	int           operator() (int*   a)          { return *a; }
	short         operator() (short*   a)          { return *a; }
	char          operator() (char*  a)          { return *a; }
	long          operator() (long* a)           { return *a; }
	long long     operator() (long long* a)      { return *a; }

	unsigned long operator() (unsigned long* a) { return *a; }
	unsigned int  operator() (unsigned int* a)  { return *a; }
	unsigned char operator() (unsigned char* a) { return *a; }
	unsigned short operator() (unsigned short* a) { return *a; }
	unsigned long long operator() (unsigned long long* a)      { return *a; }

	double        operator() (double* a)        { return *a; }

	template<class T>
	Bless&        operator() (T*)               { return *this; }
};

class TypeInfo;
class Isa {
public:
	Isa* next_;
	TypeInfo* type_;
	Isa(TypeInfo* t,Isa* n) : next_(n), type_(t) {};
	static void add(TypeInfo* t,const string&);
	static Isa* get(const string&);  


};


#ifndef member_size
#define member_size(a,b)   size_t(sizeof(((a*)0)->b))
#endif

#ifndef member_offset
#define member_offset(a,b) size_t(&(((a*)0)->b))
#endif

class Schema {
public:
	virtual void start(const string&, size_t size) = 0;
	virtual void member(const string&, size_t size, size_t offset, const string& type) = 0;
	virtual void end(const string&) = 0;
};

template<class T>
void _describe(ostream& s,int depth,const T& what) 
{
	what.describe(s,depth);
}

void _describe(ostream& s,int depth,int what);
void _describe(ostream& s,int depth,unsigned int what);
void _describe(ostream& s,int depth,short what);
void _describe(ostream& s,int depth,bool what);
void _describe(ostream& s,int depth,unsigned short what);
void _describe(ostream& s,int depth,long what);
void _describe(ostream& s,int depth,long long what);
void _describe(ostream& s,int depth,unsigned long long what);
void _describe(ostream& s,int depth,unsigned long what);
void _describe(ostream& s,int depth,char what);
void _describe(ostream& s,int depth,unsigned char what);
void _describe(ostream& s,int depth,double what);

void _startClass(ostream& s,int depth,const string& name);
void _endClass(ostream& s,int depth,const string& name);
void _startMember(ostream& s,int depth,const string& name);
void _endMember(ostream& s,int depth,const string& name);

template<class T>
void _describe(ostream& s,int depth,const string& name,const T& what) 
{
	_startMember(s,depth,name);
	_describe(s,depth,what);
	_endMember(s,depth,name);
}


#endif

