61 строка
2.0 KiB
C
61 строка
2.0 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2014-2015 Los Alamos National Security, LLC. All rights
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* reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "osc_rdma.h"
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/**
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* @brief attach a region to a window
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*
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* @param[in] win mpi window
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* @param[in] base base pointer of region
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* @param[in] len region size
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_FLAVOR if the window is not a dynamic window
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* @returns OMPI_ERR_RMA_ATTACH if the region could not be attached
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*
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* This function attaches a region to the local window. After this call
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* completes the region will be available for RMA access by all peers in
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* the window.
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*/
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int ompi_osc_rdma_attach (struct ompi_win_t *win, void *base, size_t len);
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/**
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* @brief detach a region from a window
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*
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* @param[in] win mpi window
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* @param[in] base base pointer of region specified to ompi_osc_rdma_attach()
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_RMA_FLAVOR if the window is not a dynamic window
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* @returns OMPI_ERROR if the region is not attached
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*
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* This function requires that a region with the same base has been attached
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* using the ompi_osc_rdma_attach() function.
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*/
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int ompi_osc_rdma_detach (struct ompi_win_t *win, const void *base);
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/**
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* @brief find dynamic region associated with a peer, base, and len
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*
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* @param[in] module osc rdma module
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* @param[in] peer peer object for remote peer
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* @param[in] base base pointer for region
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* @param[in] len length of region
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* @param[out] region region structure for the region
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*
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* @returns OMPI_SUCCESS on success
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* @returns OMPI_ERR_OUT_OF_RESOURCE on resource failure
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* @returns OMPI_ERR_RMA_RANGE if no region matches
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*/
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int ompi_osc_rdma_find_dynamic_region (ompi_osc_rdma_module_t *module, ompi_osc_rdma_peer_t *peer, uint64_t base, size_t len,
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ompi_osc_rdma_region_t **region);
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