59 строки
1.4 KiB
C
59 строки
1.4 KiB
C
/*
|
|
* Copyright (c) 2013-2014 Intel, Inc. All rights reserved
|
|
*
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
|
|
#include "mtl_ofi.h"
|
|
#include "mtl_ofi_types.h"
|
|
#include "mtl_ofi_request.h"
|
|
|
|
|
|
int
|
|
ompi_mtl_ofi_cancel(struct mca_mtl_base_module_t *mtl,
|
|
mca_mtl_request_t *mtl_request,
|
|
int flag)
|
|
{
|
|
int ret;
|
|
ompi_mtl_ofi_request_t *ofi_req = (ompi_mtl_ofi_request_t*) mtl_request;
|
|
|
|
switch (ofi_req->type) {
|
|
case OMPI_MTL_OFI_SEND:
|
|
/**
|
|
* Cannot cancel sends yet
|
|
*/
|
|
break;
|
|
|
|
case OMPI_MTL_OFI_RECV:
|
|
/**
|
|
* Cancel a receive request only if it hasn't been matched yet.
|
|
* The event queue needs to be drained to make sure there isn't
|
|
* any pending receive completion event.
|
|
*/
|
|
ompi_mtl_ofi_progress();
|
|
|
|
if (!ofi_req->req_started) {
|
|
ret = fi_cancel((fid_t)ompi_mtl_ofi.ep, &ofi_req->ctx);
|
|
if (0 == ret) {
|
|
/**
|
|
* The request was successfully cancelled.
|
|
*/
|
|
ofi_req->super.ompi_req->req_status._cancelled = true;
|
|
ofi_req->super.completion_callback(&ofi_req->super);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|