138 строки
5.9 KiB
C
138 строки
5.9 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) 2004-2005 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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* $COPYRIGHT$
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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_PML_OB1_RECVFRAG_H
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#define MCA_PML_OB1_RECVFRAG_H
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#include "mca/btl/btl.h"
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#include "mca/bml/bml.h"
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#include "pml_ob1_hdr.h"
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struct mca_pml_ob1_buffer_t {
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opal_list_item_t super;
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size_t len;
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unsigned char addr[1];
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};
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typedef struct mca_pml_ob1_buffer_t mca_pml_ob1_buffer_t;
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OBJ_CLASS_DECLARATION(mca_pml_ob1_buffer_t);
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struct mca_pml_ob1_recv_frag_t {
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opal_list_item_t super;
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mca_pml_ob1_hdr_t hdr;
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struct mca_pml_ob1_recv_request_t* request;
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size_t num_segments;
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mca_btl_base_module_t* btl;
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mca_btl_base_segment_t segments[MCA_BTL_DES_MAX_SEGMENTS];
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mca_pml_ob1_buffer_t* buffers[MCA_BTL_DES_MAX_SEGMENTS];
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};
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typedef struct mca_pml_ob1_recv_frag_t mca_pml_ob1_recv_frag_t;
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OBJ_CLASS_DECLARATION(mca_pml_ob1_recv_frag_t);
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#define MCA_PML_OB1_RECV_FRAG_ALLOC(frag,rc) \
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do { \
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opal_list_item_t* item; \
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OMPI_FREE_LIST_WAIT(&mca_pml_ob1.recv_frags, item, rc); \
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frag = (mca_pml_ob1_recv_frag_t*)item; \
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} while(0)
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#define MCA_PML_OB1_RECV_FRAG_INIT(frag, hdr,segs,cnt,btl) \
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do { \
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size_t i; \
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mca_btl_base_segment_t* macro_segments = frag->segments; \
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mca_pml_ob1_buffer_t** buffers = frag->buffers; \
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\
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/* init recv_frag */ \
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frag->btl = btl; \
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frag->hdr = *(mca_pml_ob1_hdr_t*)hdr; \
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frag->num_segments = cnt; \
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/* copy over data */ \
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for(i=0; i<cnt; i++) { \
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opal_list_item_t* item; \
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mca_pml_ob1_buffer_t* buff; \
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OMPI_FREE_LIST_WAIT(&mca_pml_ob1.buffers, item, rc); \
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buff = (mca_pml_ob1_buffer_t*)item; \
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buffers[i] = buff; \
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macro_segments[i].seg_addr.pval = buff->addr; \
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macro_segments[i].seg_len = segs[i].seg_len; \
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memcpy(buff->addr, \
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segs[i].seg_addr.pval, \
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segs[i].seg_len); \
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} \
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\
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} while(0)
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#define MCA_PML_OB1_RECV_FRAG_RETURN(frag) \
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do { \
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size_t i; \
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\
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/* return buffers */ \
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for(i=0; i<frag->num_segments; i++) { \
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OMPI_FREE_LIST_RETURN(&mca_pml_ob1.buffers, \
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(opal_list_item_t*)frag->buffers[i]); \
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} \
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frag->num_segments = 0; \
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\
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/* return recv_frag */ \
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OMPI_FREE_LIST_RETURN(&mca_pml_ob1.recv_frags, \
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(opal_list_item_t*)frag); \
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} while(0)
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/**
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* Callback from BTL on receipt of a recv_frag.
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*/
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OMPI_DECLSPEC void mca_pml_ob1_recv_frag_callback(
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mca_btl_base_module_t *btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_descriptor_t* descriptor,
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void* cbdata
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);
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/**
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* Match incoming recv_frags against posted receives.
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* Supports out of order delivery.
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*
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* @param frag_header (IN) Header of received recv_frag.
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* @param frag_desc (IN) Received recv_frag descriptor.
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* @param match_made (OUT) Flag indicating wether a match was made.
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* @param additional_matches (OUT) List of additional matches
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* @return OMPI_SUCCESS or error status on failure.
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*/
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OMPI_DECLSPEC int mca_pml_ob1_recv_frag_match(
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mca_btl_base_module_t* btl,
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mca_pml_ob1_match_hdr_t *hdr,
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mca_btl_base_segment_t* segments,
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size_t num_segments);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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