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rAKA/src/common/aka_static_memory.hh
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aka_static_memory.hh
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/**
* @file aka_static_memory.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Sun Dec 03 2017
*
* @brief Memory management
*
*
* Copyright (©) 2010-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
* @section DESCRIPTION
*
* The class handling the memory, allocation/reallocation/desallocation
* The objects can register their array and ask for allocation or realocation
*
*/
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_STATIC_MEMORY_HH_
#define AKANTU_STATIC_MEMORY_HH_
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
/* -------------------------------------------------------------------------- */
#include <map>
namespace akantu {
class ArrayBase;
}
/* -------------------------------------------------------------------------- */
namespace akantu {
using ArrayMap = std::map<ID, ArrayBase *>;
using MemoryMap = std::map<MemoryID, ArrayMap>;
/**
* @class StaticMemory
* @brief Class for memory management common to all objects (this class as to
* be accessed by an interface class memory)
*/
class StaticMemory {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
private:
/// Default constructor
StaticMemory() = default;
public:
virtual ~StaticMemory();
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// Get the global instance of the StaticMemory
static StaticMemory & getStaticMemory();
static bool isInstantiated() { return is_instantiated; };
/// remove a reference on the static memory
static void destroy();
/// access to an Array
inline const ArrayBase & getArray(const MemoryID & memory_id,
const ID & name) const;
/// get all vectors of a memory
inline const ArrayMap & getMemory(const MemoryID & memory_id) const;
/* ------------------------------------------------------------------------ */
/* Class Methods */
/* ------------------------------------------------------------------------ */
public:
/**
* Allocation of an array of type
*
* @param memory_id the id of the memory accessing to the static memory
* @param name name of the array (for example connectivity)
* @param size number of size (for example number of nodes)
* @param nb_component number of component (for example spatial dimension)
*
* @return pointer an array of memory actual size: size * nb_component *
* sizeof(T)
*/
template <typename T>
Array<T> & smalloc(const MemoryID & memory_id, const ID & name, UInt size,
UInt nb_component);
template <typename T>
Array<T> & smalloc(const MemoryID & memory_id, const ID & name, UInt size,
UInt nb_component, const T & init_value);
/**
* free the memory associated to the array name
*
* @param memory_id the id of the memory accessing to the static memory
* @param name the name of an existing array
*/
void sfree(const MemoryID & memory_id, const ID & name);
/// function to print the containt of the class
virtual void printself(std::ostream & stream, int indent = 0) const;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
/// is the static memory instantiated
static bool is_instantiated;
/// unique instance of the StaticMemory
static StaticMemory * single_static_memory;
/// map of all allocated arrays, indexed by their names
MemoryMap memories;
/// number of references on the static memory
static UInt nb_reference;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
/// standard output stream operator
inline std::ostream & operator<<(std::ostream & stream,
const StaticMemory & _this) {
_this.printself(stream);
return stream;
}
} // namespace akantu
#include "aka_static_memory_inline_impl.hh"
#include "aka_static_memory_tmpl.hh"
#endif /* AKANTU_STATIC_MEMORY_HH_ */
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