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openmpi/ompi/mca/osc/rdma/osc_rdma_longreq.h
Brian Barrett 1a9f48c89d Some much needed cleanup of the rdma one-sided component, similar to
r14703 for the point-to-point component.

  * Associate the list of long message requests to poll with the 
    component, not the individual modules
  * add progress thread that sits on the OMPI request structure
    and wakes up at the appropriate time to poll the message
    list to move long messages asynchronously.
  * Instead of calling opal_progress() all over the place, move
    to using the condition variables like the rest of the project.
    Has the advantage of moving it slightly further along in the
    becoming thread safe thing.
  * Fix a problem with the passive side of unlock where it could 
    go recursive and cause all kinds of problems, especially 
    when progress threads are used. Instead, have two parts of 
    passive unlock -- one to start the unlock, and another to 
    complete the lock and send the ack back. The data moving 
    code trips the second at the right time. 

This commit was SVN r14751.

The following SVN revision numbers were found above:
  r14703 --> open-mpi/ompi@2b4b754925
2007-05-24 15:41:24 +00:00

70 строки
2.0 KiB
C

/*
* 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) 2007 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OSC_RDMA_LONGREQ_H
#define OSC_RDMA_LONGREQ_H
#include "osc_rdma.h"
#include "opal/class/opal_list.h"
#include "opal/class/opal_free_list.h"
#include "ompi/request/request.h"
struct ompi_osc_rdma_longreq_t;
typedef struct ompi_osc_rdma_longreq_t ompi_osc_rdma_longreq_t;
typedef void (*ompi_osc_rdma_longreq_cb_fn_t)(ompi_osc_rdma_longreq_t *longreq);
struct ompi_osc_rdma_longreq_t {
opal_free_list_item_t super;
ompi_request_t *request;
ompi_osc_rdma_longreq_cb_fn_t cbfunc;
void *cbdata;
/* warning - this doesn't always have a sane value */
ompi_osc_rdma_module_t *req_module;
/* for long receives, to avoid a longrecvreq type */
struct ompi_op_t *req_op;
struct ompi_datatype_t *req_datatype;
};
OBJ_CLASS_DECLARATION(ompi_osc_rdma_longreq_t);
static inline int
ompi_osc_rdma_longreq_alloc(ompi_osc_rdma_longreq_t **longreq)
{
opal_free_list_item_t *item;
int ret;
OPAL_FREE_LIST_GET(&mca_osc_rdma_component.c_longreqs,
item, ret);
*longreq = (ompi_osc_rdma_longreq_t*) item;
return ret;
}
static inline int
ompi_osc_rdma_longreq_free(ompi_osc_rdma_longreq_t *longreq)
{
OPAL_FREE_LIST_RETURN(&mca_osc_rdma_component.c_longreqs,
&longreq->super.super);
return OMPI_SUCCESS;
}
#endif