260f1fd468
The C++ bindings were not tracking keyvals properly -- they were freeing some internal meta data when Free_keyval() was called, not when the keyval was actually destroyed (keyvals are refcounted in the C layer, just like all other MPI objects, because they can live for long after their corresponding Free call is invoked). This commit fixes this problem and several other things: * Add infrastructure on the ompi_attribute_keyval_t for an "extra" destructor pointer that will be invoked during the "real" constructor (i.e., when OBJ_RELEASE puts the refcount to 0). This allows calling back into the C++ layer to release meta data associated with the keyval. * Adjust all cases where keyvals are created to pass in relevant destructors (NULL or the C++ destructor). * Do essentially the same for MPI::Comm, MPI::Win, and MPI:Datatype: * Move several functions out of the .cc file into the _inln.h file since they no longer require locks * Make the 4 Create_keyval() functions call a common back-end keyval creation function that does the Right Thing depending on whether C or C++ function pointers were used for the keyval functions. The back-end function does not call the corresponding C MPI_*_create_keyval function, but rather does the work itself so that it can associate a "destructor" callback for the C++ bindings for when the keyval is actually destroyed. * Change a few type names to be more indicative of what they are (mostly dealing with keyvals [not "keys"]). * Add the 3 missing bindings for MPI::Comm::Create_keyval(). * Remove MPI::Comm::comm_map (and associated types) because it's no longer necessary in the intercepts -- it was a by-product of being a portable C++ bindings layer. Now we can just query the C layer directly to figure out what type a communicator is. This solves some logistics / callback issues, too. * Rename several types, variables, and fix many comments in the back-end C attribute implementation to make the names really reflect what they are (keyvals vs. attributes). The previous names heavily overloaded the name "key" and were ''extremely'' confusing. This commit was SVN r13565. The following Trac tickets were found above: Ticket 817 --> https://svn.open-mpi.org/trac/ompi/ticket/817
203 строки
6.2 KiB
C++
203 строки
6.2 KiB
C++
// -*- c++ -*-
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//
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// Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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// University Research and Technology
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// Corporation. All rights reserved.
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// Copyright (c) 2004-2005 The University of Tennessee and The University
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// of Tennessee Research Foundation. All rights
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// reserved.
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// Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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// University of Stuttgart. All rights reserved.
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// Copyright (c) 2004-2005 The Regents of the University of California.
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// All rights reserved.
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// Copyright (c) 2006-2007 Cisco Systems, Inc. All rights reserved.
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// Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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// $COPYRIGHT$
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//
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// Additional copyrights may follow
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//
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// $HEADER$
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//
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class Win {
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#if 0 /* OMPI_ENABLE_MPI_PROFILING */
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// friend class P;
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#endif
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friend class MPI::Comm; //so I can access pmpi_win data member in comm.cc
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friend class MPI::Request; //and also from request.cc
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public:
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#if 0 /* OMPI_ENABLE_MPI_PROFILING */
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// construction / destruction
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Win() { }
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virtual ~Win() { }
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// copy / assignment
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Win(const Win& data) : pmpi_win(data.pmpi_win) { }
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Win(MPI_Win i) : pmpi_win(i) { }
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Win& operator=(const Win& data) {
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pmpi_win = data.pmpi_win; return *this; }
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// comparison, don't need for win
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// inter-language operability
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Win& operator= (const MPI_Win &i) {
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pmpi_win = i; return *this; }
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operator MPI_Win () const { return pmpi_win; }
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// operator MPI_Win* () const { return pmpi_win; }
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operator const PMPI::Win&() const { return pmpi_win; }
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#else
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Win() { }
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// copy
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Win(const Win& data) : mpi_win(data.mpi_win) { }
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Win(MPI_Win i) : mpi_win(i) { }
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virtual ~Win() { }
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Win& operator=(const Win& data) {
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mpi_win = data.mpi_win; return *this; }
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// comparison, don't need for win
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// inter-language operability
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Win& operator= (const MPI_Win &i) {
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mpi_win = i; return *this; }
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operator MPI_Win () const { return mpi_win; }
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// operator MPI_Win* () const { return (MPI_Win*)&mpi_win; }
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#endif
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//
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// User defined functions
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//
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typedef int Copy_attr_function(const Win& oldwin, int win_keyval,
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void* extra_state, void* attribute_val_in,
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void* attribute_val_out, bool& flag);
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typedef int Delete_attr_function(Win& win, int win_keyval,
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void* attribute_val, void* extra_state);
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typedef void Errhandler_fn(Win &, int *, ... );
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//
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// Miscellany
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//
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static MPI::Errhandler Create_errhandler(Errhandler_fn* function);
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virtual MPI::Errhandler Get_errhandler() const;
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virtual void Set_errhandler(const MPI::Errhandler& errhandler);
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//
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// One sided communication
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//
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virtual void Accumulate(const void* origin_addr, int origin_count,
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const MPI::Datatype& origin_datatype,
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int target_rank, MPI::Aint target_disp,
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int target_count,
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const MPI::Datatype& target_datatype,
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const MPI::Op& op) const;
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virtual void Complete() const;
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static Win Create(const void* base, MPI::Aint size, int disp_unit,
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const MPI::Info& info, const MPI::Intracomm& comm);
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virtual void Fence(int assert) const;
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virtual void Free();
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virtual void Get(const void *origin_addr, int origin_count,
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const MPI::Datatype& origin_datatype, int target_rank,
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MPI::Aint target_disp, int target_count,
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const MPI::Datatype& target_datatype) const;
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virtual MPI::Group Get_group() const;
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virtual void Lock(int lock_type, int rank, int assert) const;
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virtual void Post(const MPI::Group& group, int assert) const;
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virtual void Put(const void* origin_addr, int origin_count,
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const MPI::Datatype& origin_datatype, int target_rank,
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MPI::Aint target_disp, int target_count,
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const MPI::Datatype& target_datatype) const;
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virtual void Start(const MPI::Group& group, int assert) const;
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virtual bool Test() const;
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virtual void Unlock(int rank) const;
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virtual void Wait() const;
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//
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// External Interfaces
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//
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virtual void Call_errhandler(int errorcode) const;
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// Need 4 overloaded versions of this function because per the
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// MPI-2 spec, you can mix-n-match the C predefined functions with
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// C++ functions.
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static int Create_keyval(Copy_attr_function* win_copy_attr_fn,
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Delete_attr_function* win_delete_attr_fn,
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void* extra_state);
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static int Create_keyval(MPI_Win_copy_attr_function* win_copy_attr_fn,
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MPI_Win_delete_attr_function* win_delete_attr_fn,
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void* extra_state);
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static int Create_keyval(Copy_attr_function* win_copy_attr_fn,
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MPI_Win_delete_attr_function* win_delete_attr_fn,
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void* extra_state);
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static int Create_keyval(MPI_Win_copy_attr_function* win_copy_attr_fn,
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Delete_attr_function* win_delete_attr_fn,
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void* extra_state);
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protected:
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static int do_create_keyval(MPI_Win_copy_attr_function* c_copy_fn,
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MPI_Win_delete_attr_function* c_delete_fn,
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Copy_attr_function* cxx_copy_fn,
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Delete_attr_function* cxx_delete_fn,
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void* extra_state);
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public:
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virtual void Delete_attr(int win_keyval);
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static void Free_keyval(int& win_keyval);
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// version 1: pre-errata Get_attr (not correct, but probably nice to support
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bool Get_attr(const Win& win, int win_keyval,
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void* attribute_val) const;
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// version 2: post-errata Get_attr (correct, but no one seems to know about it)
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bool Get_attr(int win_keyval, void* attribute_val) const;
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virtual void Get_name(char* win_name, int& resultlen) const;
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virtual void Set_attr(int win_keyval, const void* attribute_val);
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virtual void Set_name(const char* win_name);
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Errhandler* my_errhandler;
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typedef ::std::map<MPI_Win, Win*> mpi_win_map_t;
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static mpi_win_map_t mpi_win_map;
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typedef ::std::pair<Win::Copy_attr_function*, Win::Delete_attr_function*> keyval_pair_t;
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typedef ::std::map<int, keyval_pair_t*> mpi_win_keyval_fn_map_t;
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static mpi_win_keyval_fn_map_t mpi_win_keyval_fn_map;
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protected:
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#if 0 /* OMPI_ENABLE_MPI_PROFILING */
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PMPI::Win pmpi_win;
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#else
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MPI_Win mpi_win;
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#endif
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};
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