27cea44a9c
* Make sure that the pval always writes to the correct portion of the
lval. This only matters on 32 bit big endian machines.
* On 32 bit machines when assigning to pval, the other 4 bytes of lval
weren't being written, which could lead to bogus data
We use macros so that there aren't casts all over the code and the pval
assignment can occur to the correct 4 bytes. Refs trac:587
This commit was SVN r12974.
The following Trac tickets were found above:
Ticket 587 --> https://svn.open-mpi.org/trac/ompi/ticket/587
93 строки
3.9 KiB
C
93 строки
3.9 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2006 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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/**
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* @file
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*/
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#ifndef MCA_BTL_SELF_SEND_FRAG_H
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#define MCA_BTL_SELF_SEND_FRAG_H
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#include <sys/types.h>
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#include "ompi/class/ompi_free_list.h"
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#include "btl_self.h"
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/**
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* shared memory send fragment derived type.
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*/
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struct mca_btl_self_frag_t {
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mca_btl_base_descriptor_t base;
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mca_btl_base_segment_t segment;
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struct mca_btl_base_endpoint_t *endpoint;
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size_t size;
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};
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typedef struct mca_btl_self_frag_t mca_btl_self_frag_t;
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typedef struct mca_btl_self_frag_t mca_btl_self_frag_eager_t;
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typedef struct mca_btl_self_frag_t mca_btl_self_frag_send_t;
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typedef struct mca_btl_self_frag_t mca_btl_self_frag_rdma_t;
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OBJ_CLASS_DECLARATION(mca_btl_self_frag_eager_t);
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OBJ_CLASS_DECLARATION(mca_btl_self_frag_send_t);
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OBJ_CLASS_DECLARATION(mca_btl_self_frag_rdma_t);
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#define MCA_BTL_SELF_FRAG_ALLOC_EAGER(frag, rc) \
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{ \
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ompi_free_list_item_t* item; \
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OMPI_FREE_LIST_WAIT(&mca_btl_self_component.self_frags_eager, item, rc); \
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frag = (mca_btl_self_frag_t*)item; \
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}
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#define MCA_BTL_SELF_FRAG_RETURN_EAGER(frag) \
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{ \
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OMPI_FREE_LIST_RETURN(&mca_btl_self_component.self_frags_eager, \
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(ompi_free_list_item_t*)(frag)); \
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OMPI_PTR_SET_PVAL(frag->segment.seg_addr, frag+1); \
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}
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#define MCA_BTL_SELF_FRAG_ALLOC_SEND(frag, rc) \
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{ \
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ompi_free_list_item_t* item; \
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OMPI_FREE_LIST_WAIT(&mca_btl_self_component.self_frags_send, item, rc); \
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frag = (mca_btl_self_frag_t*)item; \
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}
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#define MCA_BTL_SELF_FRAG_RETURN_SEND(frag) \
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{ \
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OMPI_FREE_LIST_RETURN( &mca_btl_self_component.self_frags_send, \
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(ompi_free_list_item_t*)(frag)); \
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OMPI_PTR_SET_PVAL(frag->segment.seg_addr, frag+1); \
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}
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#define MCA_BTL_SELF_FRAG_ALLOC_RDMA(frag, rc) \
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{ \
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ompi_free_list_item_t* item; \
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OMPI_FREE_LIST_WAIT(&mca_btl_self_component.self_frags_rdma, item, rc); \
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frag = (mca_btl_self_frag_t*)item; \
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}
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#define MCA_BTL_SELF_FRAG_RETURN_RDMA(frag) \
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{ \
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OMPI_FREE_LIST_RETURN(&mca_btl_self_component.self_frags_rdma, \
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(ompi_free_list_item_t*)(frag)); \
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OMPI_PTR_SET_PVAL(frag->segment.seg_addr, frag+1); \
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}
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#endif
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