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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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) 2010 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_OSC_PT2PT_SENDREQ_H
#define OMPI_OSC_PT2PT_SENDREQ_H
#include "osc_pt2pt.h"
#include "osc_pt2pt_longreq.h"
#include "opal/class/opal_list.h"
#include "ompi/datatype/ompi_datatype.h"
#include "opal/datatype/opal_convertor.h"
#include "ompi/communicator/communicator.h"
#include "ompi/proc/proc.h"
#include "ompi/memchecker.h"
typedef enum {
OMPI_OSC_PT2PT_GET,
OMPI_OSC_PT2PT_ACC,
OMPI_OSC_PT2PT_PUT
} ompi_osc_pt2pt_req_type_t;
struct ompi_osc_pt2pt_sendreq_t {
ompi_request_t super;
/** type of sendreq (from ompi_osc_pt2pt_req_type_t) */
ompi_osc_pt2pt_req_type_t req_type;
/** pointer to the module that created the sendreq */
ompi_osc_pt2pt_module_t *req_module;
/** Datatype for the origin side of the operation */
struct ompi_datatype_t *req_origin_datatype;
/** Convertor for the origin side of the operation. Setup for
either send (Put / Accumulate) or receive (Get) */
opal_convertor_t req_origin_convertor;
/** packed size of message on the origin side */
size_t req_origin_bytes_packed;
/** rank in module's communicator for target of operation */
int req_target_rank;
/** pointer to the proc structure for the target of the operation */
ompi_proc_t *req_target_proc;
/** displacement on target */
OPAL_PTRDIFF_TYPE req_target_disp;
/** datatype count on target */
int req_target_count;
/** datatype on target */
struct ompi_datatype_t *req_target_datatype;
/** op index on the target */
int req_op_id;
};
typedef struct ompi_osc_pt2pt_sendreq_t ompi_osc_pt2pt_sendreq_t;
OBJ_CLASS_DECLARATION(ompi_osc_pt2pt_sendreq_t);
/** allocate and populate a sendreq structure. Both datatypes are
RETAINed for the life of the sendreq */
int
ompi_osc_pt2pt_sendreq_alloc_init(ompi_osc_pt2pt_req_type_t req_type,
void *origin_addr, int origin_count,
struct ompi_datatype_t *origin_dt,
int target,
OPAL_PTRDIFF_TYPE target_disp,
int target_count,
struct ompi_datatype_t *target_datatype,
ompi_osc_pt2pt_module_t *module,
ompi_osc_pt2pt_sendreq_t **sendreq);
static inline int
ompi_osc_pt2pt_sendreq_alloc(ompi_osc_pt2pt_module_t *module,
int target_rank,
ompi_osc_pt2pt_sendreq_t **sendreq)
{
int ret;
opal_free_list_item_t *item;
ompi_proc_t *proc = ompi_comm_peer_lookup( module->p2p_comm, target_rank );
/* BWB - FIX ME - is this really the right return code? */
if (NULL == proc) return OMPI_ERR_OUT_OF_RESOURCE;
OPAL_FREE_LIST_GET(&mca_osc_pt2pt_component.p2p_c_sendreqs,
item, ret);
if (OMPI_SUCCESS != ret) return ret;
*sendreq = (ompi_osc_pt2pt_sendreq_t*) item;
(*sendreq)->req_module = module;
(*sendreq)->req_target_rank = target_rank;
(*sendreq)->req_target_proc = proc;
return OMPI_SUCCESS;
}
static inline int
ompi_osc_pt2pt_sendreq_init_origin(ompi_osc_pt2pt_sendreq_t *sendreq,
ompi_osc_pt2pt_req_type_t req_type,
void *origin_addr,
int origin_count,
struct ompi_datatype_t *origin_dt)
{
OBJ_RETAIN(origin_dt);
sendreq->req_origin_datatype = origin_dt;
sendreq->req_type = req_type;
if (req_type != OMPI_OSC_PT2PT_GET) {
opal_convertor_copy_and_prepare_for_send(sendreq->req_target_proc->proc_convertor,
&(origin_dt->super),
origin_count,
origin_addr,
0,
&(sendreq->req_origin_convertor));
opal_convertor_get_packed_size(&sendreq->req_origin_convertor,
&sendreq->req_origin_bytes_packed);
} else {
opal_convertor_copy_and_prepare_for_recv(sendreq->req_target_proc->proc_convertor,
&(origin_dt->super),
origin_count,
origin_addr,
0,
&(sendreq->req_origin_convertor));
opal_convertor_get_packed_size(&sendreq->req_origin_convertor,
&sendreq->req_origin_bytes_packed);
}
return OMPI_SUCCESS;
}
static inline int
ompi_osc_pt2pt_sendreq_init_target(ompi_osc_pt2pt_sendreq_t *sendreq,
OPAL_PTRDIFF_TYPE target_disp,
int target_count,
struct ompi_datatype_t *target_datatype)
{
OBJ_RETAIN(target_datatype);
sendreq->req_target_disp = target_disp;
sendreq->req_target_count = target_count;
sendreq->req_target_datatype = target_datatype;
return OMPI_SUCCESS;
}
static inline int
ompi_osc_pt2pt_sendreq_free(ompi_osc_pt2pt_sendreq_t *sendreq)
{
MEMCHECKER(
memchecker_convertor_call(&opal_memchecker_base_mem_defined,
&sendreq->req_origin_convertor);
);
opal_convertor_cleanup(&sendreq->req_origin_convertor);
OBJ_RELEASE(sendreq->req_target_datatype);
OBJ_RELEASE(sendreq->req_origin_datatype);
OPAL_FREE_LIST_RETURN(&mca_osc_pt2pt_component.p2p_c_sendreqs,
(opal_list_item_t*) sendreq);
return OMPI_SUCCESS;
}
#endif /* OMPI_OSC_PT2PT_SENDREQ_H */
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