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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2011-2012 Sandia National Laboratories. All rights reserved.
* Copyright (c) 2012-2017 Cisco Systems, Inc. All rights reserved
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_MESSAGE_H
#define OMPI_MESSAGE_H
#include "mpi.h"
#include "opal/class/opal_free_list.h"
#include "opal/class/opal_pointer_array.h"
BEGIN_C_DECLS
struct ompi_communicator_t;
struct ompi_message_t {
opal_free_list_item_t super; /**< Base type */
int m_f_to_c_index; /**< Fortran handle for this message */
struct ompi_communicator_t *comm; /**< communicator used in probe */
void* req_ptr; /**< PML data */
int peer; /**< peer, same as status.MPI_SOURCE */
size_t count; /**< same value as status._ucount */
};
typedef struct ompi_message_t ompi_message_t;
OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_message_t);
/**
* Padded struct to maintain back compatibiltiy.
* See ompi/communicator/communicator.h comments with struct ompi_communicator_t
* for full explanation why we chose the following padding construct for predefines.
*/
#define PREDEFINED_MESSAGE_PAD 256
struct ompi_predefined_message_t {
struct ompi_message_t message;
char padding[PREDEFINED_MESSAGE_PAD - sizeof(ompi_message_t)];
};
typedef struct ompi_predefined_message_t ompi_predefined_message_t;
int ompi_message_init(void);
int ompi_message_finalize(void);
OMPI_DECLSPEC extern opal_free_list_t ompi_message_free_list;
OMPI_DECLSPEC extern opal_pointer_array_t ompi_message_f_to_c_table;
OMPI_DECLSPEC extern ompi_predefined_message_t ompi_message_no_proc;
static inline
ompi_message_t*
ompi_message_alloc(void)
{
return (ompi_message_t *) opal_free_list_get (&ompi_message_free_list);
}
static inline
void
ompi_message_return(ompi_message_t* msg)
{
if (MPI_UNDEFINED != msg->m_f_to_c_index) {
opal_pointer_array_set_item(&ompi_message_f_to_c_table,
msg->m_f_to_c_index, NULL);
msg->m_f_to_c_index = MPI_UNDEFINED;
}
opal_free_list_return (&ompi_message_free_list,
&msg->super);
}
END_C_DECLS
#endif
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