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// -*- c++ -*-
//
// Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
// University Research and Technology
// Corporation. All rights reserved.
// Copyright (c) 2004-2005 The University of Tennessee and The University
// of Tennessee Research Foundation. All rights
// reserved.
// Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
// University of Stuttgart. All rights reserved.
// Copyright (c) 2004-2005 The Regents of the University of California.
// All rights reserved.
// Copyright (c) 2006-2007 Sun Microsystems, Inc. All rights reserved.
// Copyright (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
// $COPYRIGHT$
//
// Additional copyrights may follow
//
// $HEADER$
//
class Datatype {
#if 0 /* OMPI_ENABLE_MPI_PROFILING */
// friend class PMPI::Datatype;
#endif
public:
#if 0 /* OMPI_ENABLE_MPI_PROFILING */
// construction
inline Datatype() { }
// inter-language operability
inline Datatype(MPI_Datatype i) : pmpi_datatype(i) { }
// copy / assignment
inline Datatype(const Datatype& dt) : pmpi_datatype(dt.pmpi_datatype) { }
inline Datatype(const PMPI::Datatype& dt) : pmpi_datatype(dt) { }
inline virtual ~Datatype() {}
inline Datatype& operator=(const Datatype& dt) {
pmpi_datatype = dt.pmpi_datatype; return *this; }
// comparison
inline bool operator== (const Datatype &a) const
{ return (bool) (pmpi_datatype == a.pmpi_datatype); }
inline bool operator!= (const Datatype &a) const
{ return (bool) !(*this == a); }
// inter-language operability
inline Datatype& operator= (const MPI_Datatype &i)
{ pmpi_datatype = i; return *this; }
inline operator MPI_Datatype() const { return (MPI_Datatype)pmpi_datatype; }
// inline operator MPI_Datatype* ()/* JGS const */ { return pmpi_datatype; }
inline operator const PMPI::Datatype&() const { return pmpi_datatype; }
inline const PMPI::Datatype& pmpi() const { return pmpi_datatype; }
#else
// construction / destruction
inline Datatype() : mpi_datatype(MPI_DATATYPE_NULL) { }
inline virtual ~Datatype() {}
// inter-language operability
inline Datatype(MPI_Datatype i) : mpi_datatype(i) { }
// copy / assignment
inline Datatype(const Datatype& dt) : mpi_datatype(dt.mpi_datatype) { }
inline Datatype& operator=(const Datatype& dt) {
mpi_datatype = dt.mpi_datatype; return *this; }
// comparison
inline bool operator== (const Datatype &a) const
{ return (bool) (mpi_datatype == a.mpi_datatype); }
inline bool operator!= (const Datatype &a) const
{ return (bool) !(*this == a); }
// inter-language operability
inline Datatype& operator= (const MPI_Datatype &i)
{ mpi_datatype = i; return *this; }
inline operator MPI_Datatype () const { return mpi_datatype; }
// inline operator MPI_Datatype* ()/* JGS const */ { return &mpi_datatype; }
#endif
//
// User Defined Functions
//
typedef int Copy_attr_function(const Datatype& oldtype,
int type_keyval,
void* extra_state,
const void* attribute_val_in,
void* attribute_val_out,
bool& flag);
typedef int Delete_attr_function(Datatype& type, int type_keyval,
void* attribute_val, void* extra_state);
//
// Point-to-Point Communication
//
virtual Datatype Create_contiguous(int count) const;
virtual Datatype Create_vector(int count, int blocklength,
int stride) const;
virtual Datatype Create_indexed(int count,
const int array_of_blocklengths[],
const int array_of_displacements[]) const;
static Datatype Create_struct(int count, const int array_of_blocklengths[],
const Aint array_of_displacements[],
const Datatype array_if_types[]);
virtual Datatype Create_hindexed(int count, const int array_of_blocklengths[],
const Aint array_of_displacements[]) const;
virtual Datatype Create_hvector(int count, int blocklength, Aint stride) const;
virtual Datatype Create_indexed_block(int count, int blocklength,
const int array_of_blocklengths[]) const;
virtual Datatype Create_resized(const Aint lb, const Aint extent) const;
virtual int Get_size() const;
virtual void Get_extent(Aint& lb, Aint& extent) const;
virtual void Get_true_extent(Aint&, Aint&) const;
virtual void Commit();
virtual void Free();
virtual void Pack(const void* inbuf, int incount, void *outbuf,
int outsize, int& position, const Comm &comm) const;
virtual void Unpack(const void* inbuf, int insize, void *outbuf, int outcount,
int& position, const Comm& comm) const;
virtual int Pack_size(int incount, const Comm& comm) const;
//
// Miscellany
//
virtual Datatype Create_subarray(int ndims, const int array_of_sizes[],
const int array_of_subsizes[],
const int array_of_starts[], int order)
const;
//
// External Interfaces
//
virtual Datatype Dup() const;
// Need 4 overloaded versions of this function because per the
// MPI-2 spec, you can mix-n-match the C predefined functions with
// C++ functions.
static int Create_keyval(Copy_attr_function* type_copy_attr_fn,
Delete_attr_function* type_delete_attr_fn,
void* extra_state);
static int Create_keyval(MPI_Type_copy_attr_function* type_copy_attr_fn,
MPI_Type_delete_attr_function* type_delete_attr_fn,
void* extra_state);
static int Create_keyval(Copy_attr_function* type_copy_attr_fn,
MPI_Type_delete_attr_function* type_delete_attr_fn,
void* extra_state);
static int Create_keyval(MPI_Type_copy_attr_function* type_copy_attr_fn,
Delete_attr_function* type_delete_attr_fn,
void* extra_state);
protected:
// Back-end function to do the heavy lifting for creating the
// keyval
static int do_create_keyval(MPI_Type_copy_attr_function* c_copy_fn,
MPI_Type_delete_attr_function* c_delete_fn,
Copy_attr_function* cxx_copy_fn,
Delete_attr_function* cxx_delete_fn,
void* extra_state);
public:
virtual void Delete_attr(int type_keyval);
static void Free_keyval(int& type_keyval);
virtual bool Get_attr(int type_keyval, void* attribute_val) const;
virtual void Get_contents(int max_integers, int max_addresses,
int max_datatypes, int array_of_integers[],
Aint array_of_addresses[],
Datatype array_of_datatypes[]) const;
virtual void Get_envelope(int& num_integers, int& num_addresses,
int& num_datatypes, int& combiner) const;
virtual void Get_name(char* type_name, int& resultlen) const;
virtual void Set_attr(int type_keyval, const void* attribute_val);
virtual void Set_name(const char* type_name);
#if 0 /* OMPI_ENABLE_MPI_PROFILING */
private:
PMPI::Datatype pmpi_datatype;
#else
protected:
MPI_Datatype mpi_datatype;
#endif
public:
typedef ::std::map<MPI_Datatype, Datatype*> mpi_type_map_t;
static mpi_type_map_t mpi_type_map;
typedef ::std::pair<Datatype::Copy_attr_function*, Datatype::Delete_attr_function*> keyval_pair_t;
typedef ::std::map<int, keyval_pair_t*> mpi_type_keyval_fn_map_t;
static mpi_type_keyval_fn_map_t mpi_type_keyval_fn_map;
};
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