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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2013 Mellanox Technologies, Inc.
* All rights reserved.
* Copyright (c) 2015 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2015-2016 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef MCA_SPML_BASE_REQUEST_H
#define MCA_SPML_BASE_REQUEST_H
#include "oshmem_config.h"
#include "oshmem/request/request.h" /* TODO: define */
#include "opal/datatype/opal_convertor.h"
#include "opal/class/opal_free_list.h"
BEGIN_C_DECLS
/**
* External list for the requests. They are declared as lists of
* the basic request type, which will allow all SPML to overload
* the list. Beware these free lists have to be initialized
* directly by the SPML who win the SPML election.
*/
OSHMEM_DECLSPEC extern opal_free_list_t mca_spml_base_put_requests;
OSHMEM_DECLSPEC extern opal_free_list_t mca_spml_base_get_requests;
OSHMEM_DECLSPEC extern opal_free_list_t mca_spml_base_send_requests;
OSHMEM_DECLSPEC extern opal_free_list_t mca_spml_base_recv_requests;
OSHMEM_DECLSPEC extern opal_free_list_t mca_spml_base_atomic_requests;
/* TODO: Consider to add requests lists
* 1. List of Non blocking requests with NULL handle.
* 2. List of Non blocking request with Non-NULL handle.
* 3. List of non completed puts (for small msgs).
*/
/**
* Types of one sided requests.
*/
typedef enum {
MCA_SPML_REQUEST_NULL,
MCA_SPML_REQUEST_PUT, /* Put request */
MCA_SPML_REQUEST_GET, /* Get Request */
MCA_SPML_REQUEST_SEND, /* Send Request */
MCA_SPML_REQUEST_RECV, /* Receive Request */
MCA_SPML_REQUEST_ATOMIC_CAS, /* Atomic Compare-And-Swap request */
MCA_SPML_REQUEST_ATOMIC_FAAD /* Atomic Fatch-And-Add request */
} mca_spml_base_request_type_t;
/**
* Base type for SPML one sided requests
*/
struct mca_spml_base_request_t {
oshmem_request_t req_oshmem; /**< base request */
volatile bool req_spml_complete; /**< flag indicating if the one sided layer is done with this request */
mca_spml_base_request_type_t req_type; /**< SHMEM request type */
volatile bool req_free_called; /**< flag indicating if the user has freed this request */
opal_convertor_t req_convertor; /**< always need the convertor */
void *req_addr; /**< pointer to application buffer */
size_t req_count; /**< count of user datatype elements *//* TODO: Need to remove since we are going to remove datatype*/
int32_t req_peer; /**< peer process - rank of process executing the parallel program */
ompi_proc_t* req_proc; /**< peer process */
uint64_t req_sequence; /**< sequence number for shmem one sided ordering */
};
typedef struct mca_spml_base_request_t mca_spml_base_request_t;
OSHMEM_DECLSPEC OBJ_CLASS_DECLARATION(mca_spml_base_request_t);
END_C_DECLS
#endif
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